From: Dave Olien <dmo@osdl.org>
To: rwhron@earthlink.net
Cc: linux-kernel@vger.kernel.org, akpm@osdl.org
Subject: Re: [BENCHMARK] I/O regression after 2.6.0-test5
Date: Sun, 19 Oct 2003 21:51:23 -0700 [thread overview]
Message-ID: <20031019215123.A27217@osdl.org> (raw)
In-Reply-To: <20031020003745.GA2794@rushmore>; from rwhron@earthlink.net on Sun, Oct 19, 2003 at 08:37:45PM -0400
Yup, we've seen similar regression on tiobench and reaim workloads.
On Sun, Oct 19, 2003 at 08:37:45PM -0400, rwhron@earthlink.net wrote:
> There was about a 50% regression in jobs/minute in AIM7
> database workload on quad P3 Xeon. The CPU time has not
> gone up, so the extra run time is coming from something
> else. (I/O or I/O scheduler?)
>
> tiobench sequential reads has a significant regression too.
>
> Regression appears unrelated to filesystem type.
>
> dbench was not affected.
>
> The AIM7 was run on ext2.
>
> AIM7 dbase workload
> kernel Tasks Jobs/Min Real CPU
> 2.6.0-test5-mm2 32 609.3 311.9 139.5
> 2.6.0-test5-mm4 32 595.2 319.4 131.7
> 2.6.0-test6-mm4 32 590.8 321.8 130.7
> 2.6.0-test5 32 590.2 322.0 131.9
> 2.6.0-test6 32 320.6 592.9 129.1
> 2.6.0-test7 32 290.3 654.8 120.9
>
> 2.6.0-test5-mm2 64 786.2 483.5 253.2
> 2.6.0-test6-mm4 64 779.4 487.8 253.8
> 2.6.0-test5 64 774.3 490.9 256.6
> 2.6.0-test5-mm4 64 772.0 492.4 253.7
> 2.6.0-test6 64 430.5 883.1 247.6
> 2.6.0-test7 64 402.6 944.2 231.5
>
> 2.6.0-test5-mm2 96 869.2 656.0 382.2
> 2.6.0-test6-mm4 96 867.6 657.2 387.4
> 2.6.0-test5-mm4 96 863.1 660.7 385.2
> 2.6.0-test5 96 859.0 663.9 389.5
> 2.6.0-test6 96 478.5 1191.7 368.1
> 2.6.0-test7 96 453.7 1256.9 346.8
>
> 2.6.0-test5-mm2 128 929.4 818.0 526.1
> 2.6.0-test6-mm4 128 922.6 824.1 523.3
> 2.6.0-test5-mm4 128 916.6 829.5 509.1
> 2.6.0-test5 128 910.3 835.2 528.6
> 2.6.0-test7 128 500.5 1519.1 461.3
> 2.6.0-test6 128 500.2 1520.1 497.4
>
> 2.6.0-test5-mm2 160 962.5 987.4 674.6
> 2.6.0-test5-mm4 160 952.7 997.6 655.5
> 2.6.0-test6-mm4 160 950.0 1000.5 659.5
> 2.6.0-test5 160 741.5 1281.7 644.8
> 2.6.0-test7 160 518.5 1833.1 589.6
> 2.6.0-test6 160 479.6 1981.8 618.9
>
> 2.6.0-test5-mm2 192 993.9 1147.5 810.0
> 2.6.0-test5-mm4 192 982.7 1160.5 788.2
> 2.6.0-test6-mm4 192 978.8 1165.2 808.4
> 2.6.0-test5 192 840.0 1357.8 776.0
> 2.6.0-test7 192 537.9 2120.2 709.3
> 2.6.0-test6 192 494.3 2307.1 748.2
>
> 2.6.0-test5-mm2 224 1011.2 1315.8 943.5
> 2.6.0-test5-mm4 224 1004.7 1324.3 942.1
> 2.6.0-test6-mm4 224 999.5 1331.2 920.0
> 2.6.0-test5 224 986.9 1348.2 911.8
> 2.6.0-test7 224 546.7 2433.8 832.8
> 2.6.0-test6 224 482.9 2755.1 862.1
>
> 2.6.0-test5-mm2 256 1030.9 1475.1 1076.5
> 2.6.0-test5-mm4 256 1027.1 1480.6 1071.4
> 2.6.0-test6-mm4 256 1010.3 1505.2 1074.8
> 2.6.0-test5 256 999.5 1521.3 1029.3
> 2.6.0-test7 256 556.6 2731.9 951.0
> 2.6.0-test6 256 545.1 2789.5 978.4
>
>
> Similarly, AIM7 fileserver benchmark had a drop in throughput.
> CPU time is down, but total runtime is way up.
>
> AIM7 fserver workload
> kernel Tasks Jobs/Min Real CPU
> 2.6.0-test5 4 79.7 304.0 38.3
> 2.6.0-test5-mm2 4 77.4 313.4 38.3
> 2.6.0-test5-mm4 4 76.5 317.1 36.7
> 2.6.0-test6-mm4 4 65.5 369.9 34.5
> 2.6.0-test7 4 45.5 532.5 32.2
> 2.6.0-test6 4 45.0 538.7 31.0
>
> 2.6.0-test5 8 129.8 373.5 66.3
> 2.6.0-test5-mm2 8 103.1 470.4 62.0
> 2.6.0-test5-mm4 8 102.2 474.2 61.8
> 2.6.0-test6 8 82.7 585.9 84.5
> 2.6.0-test6-mm4 8 82.4 588.1 61.1
> 2.6.0-test7 8 61.0 795.0 59.9
>
> 2.6.0-test5 12 164.1 443.0 93.1
> 2.6.0-test5-mm2 12 112.4 646.8 98.4
> 2.6.0-test5-mm4 12 111.2 653.8 96.7
> 2.6.0-test6-mm4 12 95.2 763.6 96.9
> 2.6.0-test6 12 87.9 827.6 118.9
> 2.6.0-test7 12 54.5 1335.0 91.8
>
> 2.6.0-test5 16 173.4 559.0 116.5
> 2.6.0-test5-mm2 16 128.8 752.9 119.9
> 2.6.0-test5-mm4 16 125.4 773.1 124.3
> 2.6.0-test6-mm4 16 104.2 930.3 118.7
> 2.6.0-test6 16 101.4 956.0 107.4
> 2.6.0-test7 16 70.6 1372.6 112.2
>
> 2.6.0-test5 20 180.5 671.5 143.0
> 2.6.0-test5-mm4 20 144.9 836.4 143.0
> 2.6.0-test5-mm2 20 141.7 855.3 144.1
> 2.6.0-test6 20 117.7 1030.0 131.1
> 2.6.0-test6-mm4 20 114.4 1059.5 143.0
> 2.6.0-test7 20 78.7 1539.9 134.0
>
> 2.6.0-test5 24 189.1 769.0 176.0
> 2.6.0-test5-mm2 24 156.2 930.9 180.2
> 2.6.0-test5-mm4 24 154.5 941.6 176.9
> 2.6.0-test6 24 134.5 1081.1 156.5
> 2.6.0-test6-mm4 24 124.5 1167.8 170.2
> 2.6.0-test7 24 76.9 1892.1 169.0
>
> 2.6.0-test5 28 204.6 829.2 197.5
> 2.6.0-test5-mm2 28 158.7 1069.2 209.8
> 2.6.0-test5-mm4 28 156.0 1087.7 211.5
> 2.6.0-test6-mm4 28 134.2 1264.0 196.9
> 2.6.0-test6 28 133.7 1268.7 174.7
> 2.6.0-test7 28 84.1 2016.4 188.5
>
> 2.6.0-test5 32 213.7 907.4 228.9
> 2.6.0-test5-mm2 32 151.9 1276.7 239.7
> 2.6.0-test5-mm4 32 151.5 1279.6 241.4
> 2.6.0-test6 32 147.0 1318.9 197.0
> 2.6.0-test6-mm4 32 138.8 1397.6 225.4
> 2.6.0-test7 32 88.5 2190.3 214.9
>
> Same story for the shared workload. Jobs/minute is down a
> lot since 2.6.0-test5.
>
>
> AIM7 shared workload
> kernel Tasks Jobs/Min Real CPU
> 2.6.0-test5 64 1888.8 197.2 168.3
> 2.6.0-test5-mm2 64 1517.6 245.4 177.0
> 2.6.0-test5-mm4 64 1488.6 250.2 180.5
> 2.6.0-test6-mm4 64 1239.0 300.6 175.0
> 2.6.0-test7 64 1225.1 304.0 166.6
> 2.6.0-test6 64 880.0 423.3 168.1
>
> 2.6.0-test5 128 2094.9 355.6 338.1
> 2.6.0-test5-mm2 128 1837.4 405.4 352.4
> 2.6.0-test5-mm4 128 1826.6 407.8 358.4
> 2.6.0-test6-mm4 128 1561.8 477.0 346.6
> 2.6.0-test7 128 1176.5 633.2 332.6
> 2.6.0-test6 128 1142.1 652.3 332.6
>
> 2.6.0-test5 192 2256.0 495.3 507.8
> 2.6.0-test5-mm2 192 2074.9 538.5 530.9
> 2.6.0-test5-mm4 192 2044.8 546.5 536.9
> 2.6.0-test6-mm4 192 1711.8 652.8 527.3
> 2.6.0-test6 192 1328.3 841.3 505.6
> 2.6.0-test7 192 1317.9 847.9 499.1
>
> 2.6.0-test5 256 2389.0 623.7 683.8
> 2.6.0-test5-mm2 256 2207.2 675.0 720.6
> 2.6.0-test5-mm4 256 2186.2 681.5 729.9
> 2.6.0-test6-mm4 256 1780.7 836.7 719.0
> 2.6.0-test6 256 1479.5 1007.0 672.9
> 2.6.0-test7 256 1282.0 1162.2 672.8
>
> 2.6.0-test5 320 2457.9 757.7 856.6
> 2.6.0-test5-mm4 320 2330.2 799.2 920.0
> 2.6.0-test5-mm2 320 2327.9 800.0 919.4
> 2.6.0-test6-mm4 320 1864.7 998.8 900.9
> 2.6.0-test6 320 1575.9 1181.8 853.5
> 2.6.0-test7 320 1317.9 1413.1 844.4
>
> 2.6.0-test5 384 2480.4 901.0 1036.5
> 2.6.0-test5-mm2 384 2440.2 915.9 1111.6
> 2.6.0-test5-mm4 384 2434.2 918.1 1111.0
> 2.6.0-test6-mm4 384 1883.9 1186.3 1091.7
> 2.6.0-test6 384 1629.8 1371.3 1026.3
> 2.6.0-test7 384 1326.3 1685.0 1018.6
>
> 2.6.0-test5 448 2529.8 1030.7 1209.2
> 2.6.0-test5-mm4 448 2511.6 1038.1 1306.8
> 2.6.0-test5-mm2 448 2510.0 1038.8 1306.1
> 2.6.0-test6-mm4 448 1934.3 1347.9 1283.6
> 2.6.0-test6 448 1612.3 1617.1 1203.3
> 2.6.0-test7 448 1344.7 1939.0 1200.9
>
> 2.6.0-test5-mm2 512 2579.1 1155.4 1504.0
> 2.6.0-test5 512 2566.2 1161.2 1386.2
> 2.6.0-test5-mm4 512 2552.9 1167.2 1509.2
> 2.6.0-test6-mm4 512 1921.5 1550.8 1475.1
> 2.6.0-test6 512 1538.6 1936.7 1376.9
> 2.6.0-test7 512 1370.5 2174.3 1379.2
>
> tiobench read performance in test[67] has a big regression in throughput
> as the number of threads goes up. The max and long latency numbers get
> bad too. It appears to affect ext2, ext3, reiserfs, jfs and xfs.
> Regression is in 2.6.0-test[67] and test6-mm4.
>
> tiobench-0.3.3
> Unit information
> ================
> File size = 8192 megabytes
> Blk Size = 4096 bytes
> Rate = megabytes per second
> CPU% = percentage of CPU used during the test
> Latency = milliseconds
> Lat% = percent of requests that took longer than X seconds
> CPU Eff = Rate divided by CPU% - throughput per cpu load
>
> Sequential Reads ext2
> Num Avg Maximum Lat%
> Kernel Thr Rate (CPU%) Latency Latency >2s
> ------------------------- --- --------------------------------------------
> 2.6.0-test5 1 28.55 13.89% 0.408 754.59 0.00000
> 2.6.0-test5-mm2 1 28.66 13.98% 0.406 742.76 0.00000
> 2.6.0-test5-mm4 1 28.46 13.90% 0.409 887.02 0.00000
> 2.6.0-test6 1 28.47 13.81% 0.409 1069.74 0.00000
> 2.6.0-test6-mm4 1 28.41 13.89% 0.410 723.14 0.00000
> 2.6.0-test7 1 28.71 13.92% 0.405 715.02 0.00000
>
> With one thread, performance is similar.
>
> 2.6.0-test5 8 34.01 17.09% 2.620 834.85 0.00000
> 2.6.0-test5-mm2 8 32.44 16.44% 2.765 844.99 0.00000
> 2.6.0-test5-mm4 8 30.75 15.55% 2.967 952.18 0.00000
> 2.6.0-test6 8 20.67 9.90% 4.477 1569.30 0.00000
> 2.6.0-test6-mm4 8 21.55 10.31% 4.260 1790.19 0.00000
> 2.6.0-test7 8 21.46 10.24% 4.312 1913.24 0.00000
>
> 2.6.0-test5 16 30.13 15.04% 5.980 1337.69 0.00000
> 2.6.0-test5-mm2 16 29.71 14.97% 6.024 1115.95 0.00000
> 2.6.0-test5-mm4 16 27.10 13.65% 6.606 1008.67 0.00000
> 2.6.0-test6 16 16.44 7.90% 11.201 2820.85 0.00000
> 2.6.0-test6-mm4 16 16.14 7.78% 11.382 2753.13 0.00000
> 2.6.0-test7 16 18.34 8.64% 9.877 2742.49 0.00000
>
> 2.6.0-test5 32 29.46 14.62% 11.954 1560.02 0.00000
> 2.6.0-test5-mm2 32 28.01 14.26% 12.808 1627.00 0.00000
> 2.6.0-test5-mm4 32 28.78 14.63% 12.182 1859.56 0.00000
> 2.6.0-test6 32 15.60 7.55% 23.415 4877.75 0.00000
> 2.6.0-test6-mm4 32 14.63 7.20% 24.713 4846.63 0.00000
> 2.6.0-test7 32 14.79 7.14% 24.234 4855.64 0.00000
>
> 2.6.0-test5 64 25.24 13.57% 26.901 1743.05 0.00000
> 2.6.0-test5-mm2 64 24.01 13.27% 27.922 1849.82 0.00000
> 2.6.0-test5-mm4 64 23.67 13.15% 28.513 1956.58 0.00000
> 2.6.0-test6 64 9.45 5.24% 75.491 9578.85 2.75073
> 2.6.0-test6-mm4 64 8.51 4.82% 84.118 13166.74 3.11647
> 2.6.0-test7 64 8.58 4.86% 83.430 13622.86 3.05581
>
> 2.6.0-test5 128 10.41 9.76% 129.662 1820.78 0.00000
> 2.6.0-test5-mm2 128 11.00 10.44% 120.118 1742.44 0.00000
> 2.6.0-test5-mm4 128 10.67 10.15% 122.871 1912.79 0.00000
> 2.6.0-test6 128 2.97 2.66% 472.251 25694.03 8.39324
> 2.6.0-test6-mm4 128 2.94 2.66% 473.943 25530.14 8.39028
> 2.6.0-test7 128 2.94 2.68% 480.175 26306.38 8.39257
>
> At 256 threads, throughput is down and max latency skyrockets.
>
> 2.6.0-test5 256 9.13 13.30% 305.097 1446.43 0.00000
> 2.6.0-test5-mm2 256 9.09 13.60% 304.019 1648.80 0.00000
> 2.6.0-test5-mm4 256 8.63 13.66% 325.793 1542.62 0.00000
> 2.6.0-test6 256 2.71 2.49% 937.603 529116.60 8.94007
> 2.6.0-test6-mm4 256 2.62 2.46% 979.221 785760.77 9.12519
> 2.6.0-test7 256 2.56 2.39% 988.719 582067.86 9.28287
>
> Random Reads ext2
> Num Avg Maximum Lat%
> Kernel Thr Rate (CPU%) Latency Latency >2s
> ------------------------- --- --------------------------------------------
> 2.6.0-test5 1 0.95 0.94% 12.373 114.89 0.00000
> 2.6.0-test5-mm2 1 0.90 0.88% 13.061 113.19 0.00000
> 2.6.0-test5-mm4 1 0.53 0.60% 21.903 151.35 0.00000
> 2.6.0-test6 1 0.73 0.82% 16.053 391.29 0.00000
> 2.6.0-test6-mm4 1 0.76 0.81% 15.388 126.51 0.00000
> 2.6.0-test7 1 0.96 0.94% 12.192 101.93 0.00000
>
> 2.6.0-test5 8 4.11 4.58% 19.433 137.74 0.00000
> 2.6.0-test5-mm2 8 3.94 4.03% 20.931 144.16 0.00000
> 2.6.0-test5-mm4 8 2.81 3.28% 30.086 222.27 0.00000
> 2.6.0-test6 8 3.25 3.21% 27.598 640.41 0.00000
> 2.6.0-test6-mm4 8 3.98 3.82% 22.078 324.87 0.00000
> 2.6.0-test7 8 3.33 3.27% 27.069 417.17 0.00000
>
> 2.6.0-test5 16 4.05 3.90% 42.424 236.49 0.00000
> 2.6.0-test5-mm2 16 4.09 4.31% 41.651 255.17 0.00000
> 2.6.0-test5-mm4 16 3.05 3.19% 55.847 332.10 0.00000
> 2.6.0-test6 16 3.43 3.28% 48.836 934.02 0.00000
> 2.6.0-test6-mm4 16 3.21 2.69% 52.841 936.50 0.00000
> 2.6.0-test7 16 4.93 4.17% 34.720 630.63 0.00000
>
> 2.6.0-test5 32 4.41 3.58% 70.910 516.28 0.00000
> 2.6.0-test5-mm2 32 4.23 4.17% 78.492 372.63 0.00000
> 2.6.0-test5-mm4 32 4.19 3.90% 76.001 472.90 0.00000
> 2.6.0-test6 32 3.74 3.20% 92.407 1578.33 0.00000
> 2.6.0-test6-mm4 32 2.94 2.97% 116.663 1722.23 0.00000
> 2.6.0-test7 32 2.62 2.36% 129.093 2248.32 0.00000
>
> 2.6.0-test5 64 4.47 4.00% 137.277 1077.53 0.00000
> 2.6.0-test5-mm2 64 4.79 4.53% 124.035 1144.38 0.00000
> 2.6.0-test5-mm4 64 4.13 3.81% 143.321 1265.44 0.00000
> 2.6.0-test6 64 3.89 3.62% 166.555 2679.86 0.00000
> 2.6.0-test6-mm4 64 3.23 3.15% 200.698 3160.57 0.00000
> 2.6.0-test7 64 3.14 2.74% 206.849 3384.30 0.00000
>
> 2.6.0-test5 128 4.86 4.83% 243.704 2287.09 0.00000
> 2.6.0-test5-mm2 128 5.08 4.85% 228.102 2391.21 0.00000
> 2.6.0-test5-mm4 128 4.16 4.65% 270.840 2501.04 0.00000
> 2.6.0-test6 128 3.19 3.09% 389.583 6092.04 0.12601
> 2.6.0-test6-mm4 128 2.75 2.78% 439.379 6632.53 0.65524
> 2.6.0-test7 128 3.16 3.16% 388.762 5810.95 0.07560
>
> 2.6.0-test5 256 5.51 7.00% 427.503 2511.79 0.00000
> 2.6.0-test5-mm2 256 5.23 7.39% 449.007 3169.28 0.00000
> 2.6.0-test5-mm4 256 4.48 6.76% 526.994 3618.17 0.00000
> 2.6.0-test6 256 2.01 2.44% 1156.505 14117.02 16.82291
> 2.6.0-test6-mm4 256 1.99 2.38% 1169.942 13903.51 16.56250
> 2.6.0-test7 256 2.09 2.41% 1133.624 13195.27 14.97396
>
> Sequential and random writes on ext2 are not regressed.
>
> ext3 has a regression similar to ext2 for sequential and random reads.
>
> Sequential Reads ext3
> Num Avg Maximum Lat%
> Kernel Thr Rate (CPU%) Latency Latency >2s
> ------------------------- --- --------------------------------------------
> 2.6.0-test5 1 29.03 14.00% 0.401 745.26 0.00000
> 2.6.0-test5-mm2 1 28.05 13.82% 0.415 763.49 0.00000
> 2.6.0-test5-mm4 1 29.31 14.10% 0.397 867.89 0.00000
> 2.6.0-test6 1 28.92 13.83% 0.402 747.59 0.00000
> 2.6.0-test6-mm4 1 28.01 13.67% 0.415 1162.40 0.00000
> 2.6.0-test7 1 27.95 13.54% 0.416 860.38 0.00000
>
> 2.6.0-test5 8 14.53 8.42% 6.187 1280.16 0.00000
> 2.6.0-test5-mm2 8 14.25 8.56% 6.428 1438.12 0.00000
> 2.6.0-test5-mm4 8 14.42 8.60% 6.317 1335.28 0.00000
> 2.6.0-test6 8 10.37 6.00% 8.791 2065.27 0.00000
> 2.6.0-test6-mm4 8 9.38 5.81% 9.765 1978.67 0.00000
> 2.6.0-test7 8 10.25 6.02% 8.931 1977.71 0.00000
>
> 2.6.0-test5 16 11.38 7.09% 15.604 1387.68 0.00000
> 2.6.0-test5-mm2 16 12.84 7.97% 14.206 1246.21 0.00000
> 2.6.0-test5-mm4 16 12.89 8.00% 14.050 1790.63 0.00000
> 2.6.0-test6 16 5.13 3.45% 34.925 3982.64 0.00000
> 2.6.0-test6-mm4 16 4.91 3.42% 37.057 4349.95 0.00000
> 2.6.0-test7 16 5.27 3.56% 34.774 3852.71 0.00000
>
> 2.6.0-test5 32 8.77 6.17% 41.461 1856.08 0.00000
> 2.6.0-test5-mm2 32 8.79 6.26% 40.822 1667.85 0.00000
> 2.6.0-test5-mm4 32 8.74 6.41% 41.519 1797.28 0.00000
> 2.6.0-test6 32 3.32 2.60% 107.252 9267.00 0.00649
> 2.6.0-test6-mm4 32 3.58 2.78% 100.364 8453.15 0.00496
> 2.6.0-test7 32 3.39 2.65% 104.283 9029.86 0.00367
>
> 2.6.0-test5 64 6.29 5.30% 113.016 1947.14 0.00000
> 2.6.0-test5-mm2 64 7.58 6.00% 81.717 1722.83 0.00000
> 2.6.0-test5-mm4 64 7.63 6.07% 79.882 1709.56 0.00000
> 2.6.0-test6 64 2.63 2.25% 265.280 18736.77 8.76222
> 2.6.0-test6-mm4 64 2.43 2.17% 277.430 17986.61 8.95066
> 2.6.0-test7 64 2.40 2.16% 286.947 17890.59 9.59925
>
> 2.6.0-test5 128 6.19 6.61% 216.851 1852.30 0.00000
> 2.6.0-test5-mm2 128 6.73 7.19% 191.761 2049.82 0.00000
> 2.6.0-test5-mm4 128 6.09 6.55% 209.661 1910.36 0.00000
> 2.6.0-test6 128 2.06 1.95% 640.506 32660.27 12.41284
> 2.6.0-test6-mm4 128 2.03 1.98% 645.423 30932.33 12.57601
> 2.6.0-test7 128 2.05 2.02% 639.791 30885.16 12.72559
>
> 2.6.0-test5 256 6.15 9.88% 457.029 1880.47 0.00000
> 2.6.0-test5-mm2 256 5.51 9.06% 518.943 2002.06 0.00000
> 2.6.0-test5-mm4 256 5.30 8.81% 535.291 2103.11 0.00000
> 2.6.0-test6 256 1.85 1.78% 1293.732 230380.55 13.73657
> 2.6.0-test6-mm4 256 1.91 1.90% 1246.640 243088.10 13.26160
> 2.6.0-test7 256 1.81 1.78% 1351.071 281394.59 13.80543
>
> Random Reads ext3
> Num Avg Maximum Lat%
> Kernel Thr Rate (CPU%) Latency Latency >2s
> ------------------------- --- --------------------------------------------
> 2.6.0-test5 1 0.90 0.85% 12.963 112.10 0.00000
> 2.6.0-test5-mm2 1 0.93 0.97% 12.637 125.35 0.00000
> 2.6.0-test5-mm4 1 0.85 0.95% 13.714 122.66 0.00000
> 2.6.0-test6 1 0.73 0.71% 16.054 516.87 0.00000
> 2.6.0-test6-mm4 1 0.91 0.91% 12.907 125.50 0.00000
> 2.6.0-test7 1 0.94 0.82% 12.443 110.45 0.00000
>
> 2.6.0-test5 8 3.78 4.24% 21.477 131.88 0.00000
> 2.6.0-test5-mm2 8 4.01 4.49% 20.218 124.38 0.00000
> 2.6.0-test5-mm4 8 4.43 4.63% 18.684 142.49 0.00000
> 2.6.0-test6 8 3.55 3.11% 23.596 362.51 0.00000
> 2.6.0-test6-mm4 8 2.52 2.69% 32.927 534.18 0.00000
> 2.6.0-test7 8 4.21 3.80% 19.881 459.00 0.00000
>
> 2.6.0-test5 16 4.10 3.74% 37.249 236.48 0.00000
> 2.6.0-test5-mm2 16 4.42 4.48% 37.848 208.96 0.00000
> 2.6.0-test5-mm4 16 4.25 4.51% 36.874 220.75 0.00000
> 2.6.0-test6 16 3.27 3.13% 49.687 803.39 0.00000
> 2.6.0-test6-mm4 16 3.37 3.17% 49.112 951.18 0.00000
> 2.6.0-test7 16 4.49 3.87% 38.468 727.87 0.00000
>
> 2.6.0-test5 32 4.28 4.06% 76.377 458.79 0.00000
> 2.6.0-test5-mm2 32 4.53 4.40% 71.762 466.83 0.00000
> 2.6.0-test5-mm4 32 4.48 4.23% 70.711 361.46 0.00000
> 2.6.0-test6 32 3.35 3.06% 98.621 1728.18 0.00000
> 2.6.0-test6-mm4 32 4.13 3.54% 77.004 1321.89 0.00000
> 2.6.0-test7 32 3.95 3.30% 79.804 1402.47 0.00000
>
> 2.6.0-test5 64 4.89 4.80% 134.964 1243.33 0.00000
> 2.6.0-test5-mm2 64 4.63 4.17% 108.944 1006.23 0.00000
> 2.6.0-test5-mm4 64 3.70 3.92% 132.534 1222.82 0.00000
> 2.6.0-test6 64 3.35 2.98% 189.642 2847.96 0.00000
> 2.6.0-test6-mm4 64 3.12 3.03% 207.658 3362.27 0.00000
> 2.6.0-test7 64 3.02 2.89% 212.838 2652.28 0.00000
>
> 2.6.0-test5 128 5.26 5.11% 230.823 2088.49 0.00000
> 2.6.0-test5-mm2 128 4.77 4.65% 252.354 2283.06 0.00000
> 2.6.0-test5-mm4 128 4.07 4.26% 280.692 2923.29 0.00000
> 2.6.0-test6 128 2.88 3.07% 431.937 5967.29 0.12601
> 2.6.0-test6-mm4 128 3.09 3.26% 403.965 5559.31 0.02520
> 2.6.0-test7 128 3.01 2.95% 407.900 6243.88 0.10081
>
> 2.6.0-test5 256 5.18 6.62% 463.528 3270.79 0.00000
> 2.6.0-test5-mm2 256 5.20 7.12% 452.987 3055.03 0.00000
> 2.6.0-test5-mm4 256 4.36 5.89% 539.848 3465.46 0.00000
> 2.6.0-test6 256 2.26 2.92% 1013.076 11495.98 12.47396
> 2.6.0-test6-mm4 256 2.49 2.98% 943.926 10902.18 10.72917
> 2.6.0-test7 256 2.43 3.04% 996.420 11016.00 12.08334
>
> Sequential Writes ext3
> Num Avg Maximum Lat%
> Kernel Thr Rate (CPU%) Latency Latency >2s
> ------------------------- --- --------------------------------------------
> 2.6.0-test5 1 56.15 64.55% 0.170 5700.14 0.00010
> 2.6.0-test5-mm2 1 56.14 67.38% 0.173 4383.06 0.00005
> 2.6.0-test5-mm4 1 55.64 66.40% 0.173 4323.48 0.00000
> 2.6.0-test6 1 56.15 65.22% 0.171 4578.10 0.00005
> 2.6.0-test6-mm4 1 55.81 66.36% 0.172 5623.30 0.00010
> 2.6.0-test7 1 55.94 65.10% 0.171 4544.88 0.00000
>
> 2.6.0-test5 8 2.99 4.94% 23.859 1119399.58 0.08983
> 2.6.0-test5-mm2 8 3.00 5.08% 24.803 613704.08 0.09155
> 2.6.0-test5-mm4 8 2.98 5.06% 25.599 515385.61 0.09627
> 2.6.0-test6 8 4.65 7.53% 15.776 347393.72 0.07853
> 2.6.0-test6-mm4 8 3.02 5.04% 25.421 399480.58 0.09512
> 2.6.0-test7 8 3.12 5.12% 23.991 197721.86 0.09255
>
> 2.6.0-test5 16 2.58 4.55% 55.284 715963.30 0.14072
> 2.6.0-test5-mm2 16 2.93 5.09% 50.697 648332.45 0.11883
> 2.6.0-test5-mm4 16 3.21 5.62% 47.072 544422.32 0.12240
> 2.6.0-test6 16 3.45 6.12% 39.175 424983.10 0.11596
> 2.6.0-test6-mm4 16 2.72 4.76% 54.117 429887.30 0.13976
> 2.6.0-test7 16 2.74 4.73% 52.594 886672.08 0.13404
>
> 2.6.0-test5 32 2.28 4.43% 127.746 833586.10 0.20012
> 2.6.0-test5-mm2 32 2.25 4.58% 124.219 1054925.33 0.20647
> 2.6.0-test5-mm4 32 2.11 4.33% 139.662 787258.98 0.22011
> 2.6.0-test6 32 2.80 5.35% 107.223 835055.83 0.18424
> 2.6.0-test6-mm4 32 2.28 4.26% 117.722 754407.32 0.18582
> 2.6.0-test7 32 2.21 4.38% 128.475 829790.72 0.21805
>
> 2.6.0-test5 64 2.02 4.54% 265.546 1322591.44 0.40007
> 2.6.0-test5-mm2 64 2.02 4.42% 278.978 1434418.75 0.42186
> 2.6.0-test5-mm4 64 2.25 4.83% 242.598 1592337.06 0.35062
> 2.6.0-test6 64 2.44 5.25% 222.436 1233112.15 0.38619
> 2.6.0-test6-mm4 64 1.98 4.45% 274.091 1442328.98 0.45623
> 2.6.0-test7 64 2.09 4.37% 249.893 1456365.96 0.30308
>
> 2.6.0-test5 128 2.21 4.96% 444.935 2758997.12 0.60168
> 2.6.0-test5-mm2 128 1.93 4.62% 568.801 3209338.67 0.84395
> 2.6.0-test5-mm4 128 1.99 4.67% 518.813 2778367.36 0.77595
> 2.6.0-test6 128 2.00 4.47% 497.636 2933240.88 0.65131
> 2.6.0-test6-mm4 128 2.03 4.71% 505.696 2839390.84 0.74044
> 2.6.0-test7 128 2.00 4.69% 491.950 2994053.88 0.75612
>
> 2.6.0-test5 256 2.11 7.77% 941.664 4873713.39 1.83378
> 2.6.0-test5-mm2 256 1.91 6.85% 1093.820 5897453.70 1.80015
> 2.6.0-test5-mm4 256 1.97 6.74% 1017.367 5695863.45 1.77222
> 2.6.0-test6 256 1.92 6.71% 1065.957 6104195.68 1.87802
> 2.6.0-test6-mm4 256 1.93 7.02% 1038.493 5678570.32 1.92114
> 2.6.0-test7 256 1.85 7.36% 1083.836 5720266.70 1.89524
>
> Random Writes ext3
> Num Avg Maximum Lat%
> Kernel Thr Rate (CPU%) Latency Latency >2s
> ------------------------- --- --------------------------------------------
> 2.6.0-test5 1 3.39 3.44% 0.399 37.37 0.00000
> 2.6.0-test5-mm2 1 3.22 3.38% 0.516 40.33 0.00000
> 2.6.0-test5-mm4 1 3.56 3.72% 0.081 10.61 0.00000
> 2.6.0-test6 1 2.34 2.39% 1.780 24.35 0.00000
> 2.6.0-test6-mm4 1 3.00 3.19% 0.746 37.62 0.00000
> 2.6.0-test7 1 3.05 3.06% 0.653 54.78 0.00000
>
> 2.6.0-test5 8 3.17 3.59% 13.525 1655.65 0.00000
> 2.6.0-test5-mm2 8 3.05 3.44% 14.349 2391.37 0.00000
> 2.6.0-test5-mm4 8 3.08 3.54% 14.093 1401.73 0.00000
> 2.6.0-test6 8 2.79 3.15% 14.906 3957.84 0.02500
> 2.6.0-test6-mm4 8 2.88 3.06% 15.029 1283.97 0.00000
> 2.6.0-test7 8 3.18 3.54% 14.407 1671.73 0.00000
>
> 2.6.0-test5 16 3.18 3.49% 26.252 1693.61 0.00000
> 2.6.0-test5-mm2 16 3.28 3.73% 25.573 3583.93 0.02500
> 2.6.0-test5-mm4 16 3.21 3.84% 25.857 6012.15 0.02500
> 2.6.0-test6 16 2.81 2.81% 30.448 2511.41 0.00000
> 2.6.0-test6-mm4 16 3.17 4.08% 20.815 5062.41 0.02500
> 2.6.0-test7 16 3.14 3.43% 28.987 2120.35 0.00000
>
> 2.6.0-test5 32 3.26 4.05% 46.822 3656.96 0.00000
> 2.6.0-test5-mm2 32 3.25 4.28% 47.088 2834.74 0.00000
> 2.6.0-test5-mm4 32 3.29 4.49% 44.765 2409.89 0.00000
> 2.6.0-test6 32 2.67 2.91% 62.319 11807.07 0.05000
> 2.6.0-test6-mm4 32 2.98 3.57% 57.025 2250.13 0.00000
> 2.6.0-test7 32 3.06 3.75% 50.252 9420.48 0.05000
>
> 2.6.0-test5 64 3.40 4.96% 46.634 2426.05 0.00000
> 2.6.0-test5-mm2 64 3.24 4.72% 93.293 7875.05 1.86492
> 2.6.0-test5-mm4 64 3.24 4.44% 79.998 5292.84 0.63004
> 2.6.0-test6 64 2.50 3.22% 137.484 6723.01 0.25202
> 2.6.0-test6-mm4 64 2.83 3.92% 79.495 9204.46 0.68044
> 2.6.0-test7 64 2.85 4.00% 91.255 6050.08 0.63004
>
> 2.6.0-test5 128 3.46 5.89% 101.597 6086.33 0.80645
> 2.6.0-test5-mm2 128 3.39 5.71% 129.468 6234.78 1.28528
> 2.6.0-test5-mm4 128 3.27 5.82% 128.846 6601.87 0.65524
> 2.6.0-test6 128 2.63 4.26% 123.641 6247.05 2.09173
> 2.6.0-test6-mm4 128 2.69 4.58% 100.787 4669.66 0.00000
> 2.6.0-test7 128 2.71 4.58% 91.826 4953.82 0.00000
>
> 2.6.0-test5 256 3.45 6.88% 210.999 10063.95 6.06770
> 2.6.0-test5-mm2 256 3.45 6.80% 263.620 8774.35 8.25520
> 2.6.0-test5-mm4 256 3.33 6.91% 209.373 10921.27 5.10416
> 2.6.0-test6 256 2.58 5.45% 353.922 7824.45 5.31250
> 2.6.0-test6-mm4 256 2.99 6.08% 152.068 6246.05 2.36979
> 2.6.0-test7 256 2.96 6.15% 69.124 3923.92 0.00000
>
> Sequential Reads jfs
> Num Avg Maximum Lat%
> Kernel Thr Rate (CPU%) Latency Latency >2s
> ------------------------- --- --------------------------------------------
>
> 2.6.0-test5 1 28.93 13.16% 0.402 958.45 0.00000
> 2.6.0-test5-mm2 1 28.84 13.33% 0.403 703.16 0.00000
> 2.6.0-test5-mm4 1 29.03 13.50% 0.401 871.93 0.00000
> 2.6.0-test6-mm4 1 28.90 13.54% 0.402 724.31 0.00000
> 2.6.0-test7 1 29.07 13.44% 0.400 677.09 0.00000
>
> 2.6.0-test5 8 50.81 24.01% 1.815 942.91 0.00000
> 2.6.0-test5-mm2 8 48.22 23.30% 1.918 959.38 0.00000
> 2.6.0-test5-mm4 8 46.01 21.88% 1.988 840.79 0.00000
> 2.6.0-test6-mm4 8 20.85 9.38% 4.417 2073.30 0.00000
> 2.6.0-test7 8 20.88 9.17% 4.402 1941.85 0.00000
>
> 2.6.0-test5 16 37.26 17.05% 5.004 855.09 0.00000
> 2.6.0-test5-mm2 16 40.27 18.83% 4.628 1024.08 0.00000
> 2.6.0-test5-mm4 16 38.68 18.07% 4.831 820.64 0.00000
> 2.6.0-test6-mm4 16 11.10 5.05% 16.392 3579.95 0.00000
> 2.6.0-test7 16 11.98 5.35% 15.258 3381.34 0.00000
>
> 2.6.0-test5 32 35.48 16.56% 10.439 1742.70 0.00000
> 2.6.0-test5-mm2 32 35.46 17.01% 10.292 1979.97 0.00000
> 2.6.0-test5-mm4 32 33.58 15.89% 11.012 1885.26 0.00000
> 2.6.0-test6-mm4 32 10.45 4.79% 34.665 6205.82 0.00743
> 2.6.0-test7 32 10.82 4.85% 33.369 6185.50 0.00668
>
> 2.6.0-test5 64 36.58 17.71% 19.855 3297.14 0.00000
> 2.6.0-test5-mm2 64 34.64 17.14% 21.114 3190.91 0.00000
> 2.6.0-test5-mm4 64 34.98 17.66% 20.673 3254.24 0.00000
> 2.6.0-test6-mm4 64 10.64 4.87% 67.501 11935.89 2.07191
> 2.6.0-test7 64 11.33 5.08% 61.240 11701.91 1.98450
>
> 2.6.0-test5 128 11.37 8.64% 109.981 2829.31 0.00000
> 2.6.0-test5-mm2 128 17.63 11.71% 64.633 2799.09 0.00000
> 2.6.0-test5-mm4 128 15.92 11.40% 73.376 3032.50 0.00000
> 2.6.0-test6-mm4 128 2.71 2.52% 520.381 33565.98 8.79664
> 2.6.0-test7 128 3.09 2.69% 409.208 33147.84 7.51347
>
> 2.6.0-test5 256 7.53 11.50% 348.180 2671.65 0.00000
> 2.6.0-test5-mm2 256 7.77 11.45% 319.292 2285.73 0.00000
> 2.6.0-test5-mm4 256 7.23 11.94% 364.323 2244.99 0.00000
> 2.6.0-test6-mm4 256 2.00 1.95% 1023.629 216889.13 12.88433
> 2.6.0-test7 256 1.85 1.88% 1090.929 455893.85 13.53616
>
> Random Reads jfs
> Num Avg Maximum Lat%
> Kernel Thr Rate (CPU%) Latency Latency >2s
> ------------------------- --- --------------------------------------------
> 2.6.0-test5 1 0.95 0.82% 12.368 86.79 0.00000
> 2.6.0-test5-mm2 1 0.97 0.89% 12.013 108.08 0.00000
> 2.6.0-test5-mm4 1 0.99 0.99% 11.796 110.46 0.00000
> 2.6.0-test6-mm4 1 0.98 0.91% 11.987 112.94 0.00000
> 2.6.0-test7 1 0.96 0.83% 12.187 100.56 0.00000
>
> 2.6.0-test5 8 4.68 4.23% 18.784 137.13 0.00000
> 2.6.0-test5-mm2 8 4.06 3.84% 21.942 145.02 0.00000
> 2.6.0-test5-mm4 8 4.01 3.80% 20.854 150.03 0.00000
> 2.6.0-test6-mm4 8 0.81 0.61% 112.779 1277.22 0.00000
> 2.6.0-test7 8 0.82 0.66% 110.357 1250.05 0.00000
>
> 2.6.0-test5 16 3.98 3.12% 44.566 188.99 0.00000
> 2.6.0-test5-mm2 16 4.35 3.42% 40.240 189.97 0.00000
> 2.6.0-test5-mm4 16 4.28 3.37% 41.846 199.23 0.00000
> 2.6.0-test6-mm4 16 0.75 0.62% 231.931 2631.93 0.00000
> 2.6.0-test7 16 0.84 0.65% 212.690 2578.59 0.00000
>
> 2.6.0-test5 32 4.09 2.87% 86.440 373.37 0.00000
> 2.6.0-test5-mm2 32 3.86 3.07% 91.487 443.48 0.00000
> 2.6.0-test5-mm4 32 3.88 3.07% 90.965 553.03 0.00000
> 2.6.0-test6-mm4 32 0.76 0.64% 455.886 5230.06 0.00000
> 2.6.0-test7 32 0.71 0.57% 477.112 5188.75 0.00000
>
> 2.6.0-test5 64 4.04 2.88% 169.495 1553.14 0.00000
> 2.6.0-test5-mm2 64 3.84 3.25% 170.017 1413.19 0.00000
> 2.6.0-test5-mm4 64 3.99 3.37% 167.645 1628.57 0.00000
> 2.6.0-test6-mm4 64 0.70 0.61% 950.464 10451.50 26.76412
> 2.6.0-test7 64 0.71 0.63% 923.148 10352.12 26.38609
>
> 2.6.0-test5 128 4.32 3.83% 268.303 2322.59 0.00000
> 2.6.0-test5-mm2 128 4.18 3.95% 253.072 2451.90 0.00000
> 2.6.0-test5-mm4 128 4.05 3.95% 255.242 2232.10 0.00000
> 2.6.0-test6-mm4 128 0.76 0.77% 1626.585 26333.82 35.78629
> 2.6.0-test7 128 0.78 0.69% 1521.032 24112.21 33.84576
>
> 2.6.0-test5 256 4.03 5.43% 585.871 3402.15 0.00000
> 2.6.0-test5-mm2 256 4.06 5.49% 556.512 3436.30 0.00000
> 2.6.0-test5-mm4 256 4.11 5.47% 543.649 2806.43 0.00000
> 2.6.0-test6-mm4 256 0.82 0.87% 2318.070 33523.86 44.84375
> 2.6.0-test7 256 0.81 0.85% 2315.106 34969.85 44.94791
>
> Sequential Writes jfs
> Num Avg Maximum Lat%
> Kernel Thr Rate (CPU%) Latency Latency >2s
> ------------------------- --- --------------------------------------------
> 2.6.0-test5 1 56.47 47.37% 0.170 3391.01 0.00000
> 2.6.0-test5-mm2 1 56.47 49.42% 0.172 2901.46 0.00000
> 2.6.0-test5-mm4 1 56.40 48.44% 0.181 2578.21 0.00000
> 2.6.0-test6-mm4 1 56.28 47.99% 0.175 2442.78 0.00000
> 2.6.0-test7 1 56.39 46.73% 0.171 3405.20 0.00000
>
> 2.6.0-test5 8 56.19 65.59% 1.343 8360.10 0.00100
> 2.6.0-test5-mm2 8 55.94 66.86% 1.336 17088.51 0.00162
> 2.6.0-test5-mm4 8 56.03 67.52% 1.316 12716.34 0.00105
> 2.6.0-test6-mm4 8 56.14 65.15% 1.320 13881.60 0.00100
> 2.6.0-test7 8 56.23 64.40% 1.335 11973.67 0.00109
>
> 2.6.0-test5 16 55.15 67.48% 2.651 30109.56 0.03486
> 2.6.0-test5-mm2 16 55.93 68.92% 2.576 39135.68 0.03081
> 2.6.0-test5-mm4 16 54.88 69.40% 2.679 36823.40 0.03596
> 2.6.0-test6-mm4 16 54.85 65.44% 2.641 21368.63 0.04229
> 2.6.0-test7 16 55.84 68.65% 2.635 63526.06 0.03019
>
> 2.6.0-test5 32 54.38 69.36% 5.204 96795.80 0.10614
> 2.6.0-test5-mm2 32 55.11 70.01% 4.989 55045.13 0.10557
> 2.6.0-test5-mm4 32 53.92 70.42% 5.099 68154.16 0.10362
> 2.6.0-test6-mm4 32 54.17 70.60% 5.074 81693.83 0.09809
> 2.6.0-test7 32 54.75 69.14% 4.998 108095.44 0.09742
>
> 2.6.0-test5 64 54.58 75.03% 9.331 208382.29 0.10910
> 2.6.0-test5-mm2 64 54.44 69.22% 9.195 156878.93 0.11329
> 2.6.0-test5-mm4 64 53.35 72.64% 9.621 158954.21 0.10639
> 2.6.0-test6-mm4 64 54.54 70.28% 9.386 148888.99 0.11191
> 2.6.0-test7 64 54.67 69.68% 8.969 189127.28 0.10605
>
> 2.6.0-test5 128 10.39 18.85% 93.764 2075500.73 0.09913
> 2.6.0-test5-mm2 128 15.87 27.47% 61.244 1306699.59 0.08931
> 2.6.0-test5-mm4 128 16.06 28.24% 56.744 1437340.48 0.08950
> 2.6.0-test6-mm4 128 20.89 35.44% 42.971 1018802.82 0.10410
> 2.6.0-test7 128 13.63 23.07% 69.588 1685679.31 0.08650
>
> 2.6.0-test5 256 10.65 20.80% 168.683 1900450.38 0.20290
> 2.6.0-test5-mm2 256 9.72 18.90% 202.289 2024501.68 0.13385
> 2.6.0-test5-mm4 256 8.52 17.57% 221.659 1967027.22 0.19260
> 2.6.0-test6-mm4 256 9.20 17.32% 200.496 1843020.23 0.12737
> 2.6.0-test7 256 8.85 17.47% 212.298 2080395.84 0.11768
>
> Random Writes jfs
> Num Avg Maximum Lat%
> Kernel Thr Rate (CPU%) Latency Latency >2s
> ------------------------- --- --------------------------------------------
> 2.6.0-test5 1 3.90 3.48% 0.060 0.56 0.00000
> 2.6.0-test5-mm2 1 3.89 3.25% 0.061 0.28 0.00000
> 2.6.0-test5-mm4 1 3.86 3.23% 0.061 0.35 0.00000
> 2.6.0-test6-mm4 1 3.93 3.40% 0.060 0.37 0.00000
> 2.6.0-test7 1 3.69 3.03% 0.059 0.88 0.00000
>
> 2.6.0-test5 8 3.86 6.54% 0.170 59.53 0.00000
> 2.6.0-test5-mm2 8 3.68 6.19% 0.170 77.58 0.00000
> 2.6.0-test5-mm4 8 3.69 6.03% 0.171 69.55 0.00000
> 2.6.0-test6-mm4 8 3.55 5.93% 0.153 34.88 0.00000
> 2.6.0-test7 8 3.56 5.99% 0.162 52.74 0.00000
>
> 2.6.0-test5 16 3.71 6.47% 0.162 43.67 0.00000
> 2.6.0-test5-mm2 16 3.82 6.63% 0.166 54.86 0.00000
> 2.6.0-test5-mm4 16 3.71 6.33% 0.168 43.72 0.00000
> 2.6.0-test6-mm4 16 3.42 6.01% 0.151 14.21 0.00000
> 2.6.0-test7 16 3.56 5.94% 0.149 4.41 0.00000
>
> 2.6.0-test5 32 3.71 6.48% 0.178 111.32 0.00000
> 2.6.0-test5-mm2 32 3.50 5.99% 0.148 3.16 0.00000
> 2.6.0-test5-mm4 32 3.56 6.47% 0.170 55.28 0.00000
> 2.6.0-test6-mm4 32 3.44 6.09% 0.147 4.23 0.00000
> 2.6.0-test7 32 3.22 5.41% 0.158 59.51 0.00000
>
> 2.6.0-test5 64 3.50 6.28% 0.148 3.96 0.00000
> 2.6.0-test5-mm2 64 3.34 5.99% 0.160 51.30 0.00000
> 2.6.0-test5-mm4 64 3.58 6.46% 0.157 7.48 0.00000
> 2.6.0-test6-mm4 64 3.25 5.67% 0.146 3.61 0.00000
> 2.6.0-test7 64 3.28 5.74% 0.168 55.67 0.00000
>
> 2.6.0-test5 128 3.28 5.72% 20.122 1415.53 0.00000
> 2.6.0-test5-mm2 128 3.29 5.92% 1.297 1229.30 0.00000
> 2.6.0-test5-mm4 128 3.42 6.33% 1.499 541.00 0.00000
> 2.6.0-test6-mm4 128 3.08 5.62% 1.341 1089.07 0.00000
> 2.6.0-test7 128 3.13 5.51% 0.595 923.55 0.00000
>
> 2.6.0-test5 256 2.80 5.18% 89.100 3075.82 0.00000
> 2.6.0-test5-mm2 256 2.98 5.76% 33.288 2094.84 0.00000
> 2.6.0-test5-mm4 256 3.19 6.47% 13.738 1648.72 0.00000
> 2.6.0-test6-mm4 256 2.65 5.49% 18.498 2632.76 0.00000
> 2.6.0-test7 256 2.74 5.45% 10.049 2382.47 0.00000
>
> Sequential Reads reiserfs
> Num Avg Maximum Lat%
> Kernel Thr Rate (CPU%) Latency Latency >2s
> ------------------------- --- --------------------------------------------
> 2.6.0-test5 1 28.20 15.37% 0.413 97.43 0.00000
> 2.6.0-test5-mm2 1 30.21 16.13% 0.385 1159.97 0.00000
> 2.6.0-test5-mm4 1 28.15 15.29% 0.413 771.52 0.00000
> 2.6.0-test6 1 28.84 15.63% 0.404 111.79 0.00000
> 2.6.0-test6-mm4 1 29.99 16.01% 0.388 1065.08 0.00000
> 2.6.0-test7 1 29.45 15.70% 0.395 113.20 0.00000
>
> 2.6.0-test5 8 29.77 17.07% 2.974 854.50 0.00000
> 2.6.0-test5-mm2 8 31.14 18.03% 2.811 653.61 0.00000
> 2.6.0-test5-mm4 8 32.23 18.70% 2.727 542.20 0.00000
> 2.6.0-test6 8 21.41 11.92% 4.275 1487.18 0.00000
> 2.6.0-test6-mm4 8 21.93 12.30% 4.185 1320.72 0.00000
> 2.6.0-test7 8 21.40 11.78% 4.263 1261.39 0.00000
>
> 2.6.0-test5 16 29.99 17.01% 5.829 901.20 0.00000
> 2.6.0-test5-mm2 16 29.66 17.05% 5.954 1288.12 0.00000
> 2.6.0-test5-mm4 16 30.20 17.66% 5.872 1153.05 0.00000
> 2.6.0-test6 16 19.46 10.99% 9.435 2515.46 0.00000
> 2.6.0-test6-mm4 16 18.92 10.48% 9.650 2572.79 0.00000
> 2.6.0-test7 16 18.34 10.11% 10.014 2648.17 0.00000
>
> 2.6.0-test5 32 28.86 16.73% 12.003 1408.20 0.00000
> 2.6.0-test5-mm2 32 28.21 16.52% 12.099 1385.36 0.00000
> 2.6.0-test5-mm4 32 27.64 16.72% 12.706 1491.53 0.00000
> 2.6.0-test6 32 17.33 9.87% 20.872 5771.49 0.00005
> 2.6.0-test6-mm4 32 18.21 10.25% 19.659 4621.02 0.00000
> 2.6.0-test7 32 17.89 9.88% 20.121 4681.65 0.00000
>
> 2.6.0-test5 64 24.08 15.49% 27.936 1610.23 0.00000
> 2.6.0-test5-mm2 64 23.23 15.01% 27.942 1478.59 0.00000
> 2.6.0-test5-mm4 64 22.97 15.39% 29.020 1577.31 0.00000
> 2.6.0-test6 64 7.62 5.28% 95.479 16071.22 3.52058
> 2.6.0-test6-mm4 64 7.89 5.41% 91.677 12720.86 3.22466
> 2.6.0-test7 64 7.51 5.16% 96.373 14738.26 3.39680
>
> 2.6.0-test5 128 9.77 11.49% 141.347 1501.12 0.00000
> 2.6.0-test5-mm2 128 10.81 12.13% 121.146 1501.77 0.00000
> 2.6.0-test5-mm4 128 10.08 12.01% 134.006 1616.24 0.00000
> 2.6.0-test6 128 2.71 2.80% 534.963 33603.12 10.19945
> 2.6.0-test6-mm4 128 2.76 2.91% 524.334 34758.05 9.84798
> 2.6.0-test7 128 2.66 2.72% 543.918 33661.62 10.33516
>
> 2.6.0-test5 256 8.88 15.47% 327.283 2378.44 0.00000
> 2.6.0-test5-mm2 256 8.59 15.37% 339.514 1905.29 0.00000
> 2.6.0-test5-mm4 256 8.60 16.11% 338.642 1890.15 0.00000
> 2.6.0-test6 256 2.29 2.42% 1177.401 291951.14 11.55243
> 2.6.0-test6-mm4 256 2.32 2.50% 1158.512 343146.47 11.20739
> 2.6.0-test7 256 2.28 2.39% 1172.902 277837.90 11.42778
>
> Random Reads reiserfs
> Num Avg Maximum Lat%
> Kernel Thr Rate (CPU%) Latency Latency >2s
> ------------------------- --- --------------------------------------------
> 2.6.0-test5 1 0.88 0.95% 13.375 121.48 0.00000
> 2.6.0-test5-mm2 1 1.01 1.08% 11.543 382.20 0.00000
> 2.6.0-test5-mm4 1 0.86 1.11% 13.564 123.23 0.00000
> 2.6.0-test6 1 0.96 1.10% 12.246 127.82 0.00000
> 2.6.0-test6-mm4 1 1.02 1.16% 11.496 391.26 0.00000
> 2.6.0-test7 1 0.99 1.04% 11.863 111.96 0.00000
>
> 2.6.0-test5 8 4.59 5.28% 17.392 126.60 0.00000
> 2.6.0-test5-mm2 8 4.88 5.41% 15.978 105.27 0.00000
> 2.6.0-test5-mm4 8 4.64 5.92% 17.234 119.30 0.00000
> 2.6.0-test6 8 3.12 3.28% 27.584 373.26 0.00000
> 2.6.0-test6-mm4 8 3.80 4.12% 23.064 280.06 0.00000
> 2.6.0-test7 8 3.35 3.69% 24.895 337.23 0.00000
>
> 2.6.0-test5 16 4.80 4.33% 34.457 189.80 0.00000
> 2.6.0-test5-mm2 16 5.27 5.28% 30.882 160.61 0.00000
> 2.6.0-test5-mm4 16 5.22 5.44% 32.357 494.99 0.00000
> 2.6.0-test6 16 3.93 4.12% 43.768 728.55 0.00000
> 2.6.0-test6-mm4 16 3.96 3.79% 41.680 775.69 0.00000
> 2.6.0-test7 16 3.96 3.85% 42.797 705.06 0.00000
>
> 2.6.0-test5 32 5.45 5.07% 59.014 323.30 0.00000
> 2.6.0-test5-mm2 32 5.65 5.45% 57.673 313.96 0.00000
> 2.6.0-test5-mm4 32 4.47 4.84% 75.004 455.38 0.00000
> 2.6.0-test6 32 4.39 4.58% 77.879 1232.67 0.00000
> 2.6.0-test6-mm4 32 4.15 4.34% 80.355 1229.75 0.00000
> 2.6.0-test7 32 4.88 4.59% 67.103 1033.43 0.00000
>
> 2.6.0-test5 64 5.49 5.42% 108.692 991.66 0.00000
> 2.6.0-test5-mm2 64 5.10 5.60% 113.940 914.35 0.00000
> 2.6.0-test5-mm4 64 4.72 5.35% 126.505 1182.30 0.00000
> 2.6.0-test6 64 3.90 4.03% 165.855 2554.36 0.00000
> 2.6.0-test6-mm4 64 4.54 4.72% 140.927 2060.27 0.00000
> 2.6.0-test7 64 4.95 4.73% 129.947 2011.81 0.00000
>
> 2.6.0-test5 128 5.48 5.99% 221.089 2074.91 0.00000
> 2.6.0-test5-mm2 128 5.71 6.49% 208.548 1781.53 0.00000
> 2.6.0-test5-mm4 128 4.94 5.94% 240.781 2090.92 0.00000
> 2.6.0-test6 128 3.55 4.55% 367.628 5086.89 0.00000
> 2.6.0-test6-mm4 128 4.15 4.50% 314.516 3914.52 0.00000
> 2.6.0-test7 128 3.98 4.56% 328.297 4300.67 0.00000
>
> 2.6.0-test5 256 5.39 7.63% 455.466 2448.36 0.00000
> 2.6.0-test5-mm2 256 5.85 8.92% 415.957 2773.47 0.00000
> 2.6.0-test5-mm4 256 4.88 8.30% 498.235 2859.83 0.00000
> 2.6.0-test6 256 2.88 4.24% 861.877 8947.59 7.13542
> 2.6.0-test6-mm4 256 3.28 4.52% 752.088 7585.14 3.09895
> 2.6.0-test7 256 3.11 4.19% 794.027 8045.64 3.82812
>
> Sequential Writes reiserf
> Num Avg Maximum Lat%
> Kernel Thr Rate (CPU%) Latency Latency >2s
> ------------------------- --- --------------------------------------------
> 2.6.0-test5 1 55.30 90.83% 0.200 1317.87 0.00000
> 2.6.0-test5-mm2 1 55.08 92.70% 0.201 1512.52 0.00000
> 2.6.0-test5-mm4 1 54.62 92.30% 0.202 2146.88 0.00000
> 2.6.0-test6 1 55.09 91.14% 0.201 1243.21 0.00000
> 2.6.0-test6-mm4 1 54.46 91.70% 0.202 1725.38 0.00000
> 2.6.0-test7 1 55.08 91.27% 0.200 2381.55 0.00000
>
> 2.6.0-test5 8 27.22 99.99% 2.834 62892.07 0.02932
> 2.6.0-test5-mm2 8 27.84 100.4% 2.721 20683.58 0.03290
> 2.6.0-test5-mm4 8 28.18 96.26% 2.667 24253.31 0.03237
> 2.6.0-test6 8 28.88 102.9% 2.572 28097.64 0.03533
> 2.6.0-test6-mm4 8 26.57 92.64% 2.855 24274.27 0.05517
> 2.6.0-test7 8 28.60 104.5% 2.571 19829.03 0.02890
>
> 2.6.0-test5 16 30.58 102.6% 4.745 29788.03 0.07806
> 2.6.0-test5-mm2 16 28.94 101.7% 5.051 37491.58 0.07902
> 2.6.0-test5-mm4 16 28.45 97.86% 4.971 28952.01 0.08851
> 2.6.0-test6 16 27.13 98.05% 5.414 58605.69 0.08331
> 2.6.0-test6-mm4 16 27.04 89.13% 5.347 24565.13 0.08516
> 2.6.0-test7 16 29.19 98.45% 5.031 29653.75 0.08398
>
> 2.6.0-test5 32 27.88 104.6% 10.012 44186.44 0.11630
> 2.6.0-test5-mm2 32 27.15 104.7% 9.911 47326.17 0.11076
> 2.6.0-test5-mm4 32 27.57 102.6% 9.820 88173.93 0.10858
> 2.6.0-test6 32 27.80 100.8% 9.951 72577.05 0.11445
> 2.6.0-test6-mm4 32 25.80 97.74% 10.563 65400.15 0.11706
> 2.6.0-test7 32 28.65 105.3% 9.613 44890.58 0.11087
>
> 2.6.0-test5 64 27.12 109.5% 19.091 93664.16 0.15073
> 2.6.0-test5-mm2 64 25.80 117.2% 20.100 73309.25 0.18029
> 2.6.0-test5-mm4 64 25.64 112.9% 19.408 76139.55 0.16613
> 2.6.0-test6 64 26.30 112.0% 19.162 93011.66 0.16308
> 2.6.0-test6-mm4 64 24.15 104.3% 21.613 86562.64 0.18483
> 2.6.0-test7 64 25.10 107.7% 20.311 80093.32 0.16470
>
> 2.6.0-test5 128 23.52 119.4% 42.286 116297.76 0.39005
> 2.6.0-test5-mm2 128 24.88 127.8% 39.106 139584.40 0.35658
> 2.6.0-test5-mm4 128 24.28 127.9% 39.111 159921.42 0.37918
> 2.6.0-test6 128 24.79 122.4% 41.723 127648.00 0.39692
> 2.6.0-test6-mm4 128 24.48 125.2% 39.716 128936.67 0.38275
> 2.6.0-test7 128 24.29 122.0% 40.692 152191.29 0.35692
>
> 2.6.0-test5 256 19.14 163.4% 112.557 239944.32 1.00599
> 2.6.0-test5-mm2 256 23.21 153.9% 84.422 200276.08 0.75154
> 2.6.0-test5-mm4 256 23.45 161.4% 86.423 216520.39 0.71788
> 2.6.0-test6 256 23.14 168.2% 83.087 247571.24 0.75640
> 2.6.0-test6-mm4 256 20.87 136.1% 74.033 177291.47 0.66229
> 2.6.0-test7 256 23.11 142.0% 79.651 233921.91 0.66109
>
> Random Writes reiserfs
> Num Avg Maximum Lat%
> Kernel Thr Rate (CPU%) Latency Latency >2s
> ------------------------- --- --------------------------------------------
> 2.6.0-test5 1 2.41 2.77% 1.925 282.65 0.00000
> 2.6.0-test5-mm2 1 3.71 4.05% 0.222 18.72 0.00000
> 2.6.0-test5-mm4 1 2.29 2.87% 2.191 299.62 0.00000
> 2.6.0-test6 1 2.89 3.32% 1.040 91.48 0.00000
> 2.6.0-test6-mm4 1 3.60 3.66% 0.228 24.13 0.00000
> 2.6.0-test7 1 3.58 3.58% 0.347 30.23 0.00000
>
> 2.6.0-test5 8 3.50 4.12% 11.316 1348.95 0.00000
> 2.6.0-test5-mm2 8 3.74 5.07% 10.135 1133.62 0.00000
> 2.6.0-test5-mm4 8 3.54 4.73% 10.168 1285.63 0.00000
> 2.6.0-test6 8 3.26 4.02% 9.287 1182.99 0.00000
> 2.6.0-test6-mm4 8 3.39 4.53% 5.611 1106.14 0.00000
> 2.6.0-test7 8 3.29 3.77% 10.518 1191.14 0.00000
>
> 2.6.0-test5 16 3.44 4.05% 22.370 4353.76 0.10000
> 2.6.0-test5-mm2 16 3.54 3.72% 22.545 1478.64 0.00000
> 2.6.0-test5-mm4 16 3.61 4.71% 20.853 1777.27 0.00000
> 2.6.0-test6 16 3.60 4.11% 17.724 1421.63 0.00000
> 2.6.0-test6-mm4 16 3.37 3.72% 23.097 1422.10 0.00000
> 2.6.0-test7 16 3.46 4.40% 16.822 4822.00 0.02500
>
> 2.6.0-test5 32 3.68 4.57% 22.011 1260.71 0.00000
> 2.6.0-test5-mm2 32 3.60 4.50% 26.561 1836.41 0.00000
> 2.6.0-test5-mm4 32 3.55 4.32% 33.055 1460.77 0.00000
> 2.6.0-test6 32 3.41 4.07% 23.498 2013.53 0.00000
> 2.6.0-test6-mm4 32 3.42 4.36% 13.875 1214.49 0.00000
> 2.6.0-test7 32 3.42 4.04% 26.600 3437.82 0.02500
>
> 2.6.0-test5 64 3.62 5.09% 37.320 8700.40 0.90725
> 2.6.0-test5-mm2 64 3.81 6.11% 18.225 1814.21 0.00000
> 2.6.0-test5-mm4 64 3.37 5.09% 43.372 3280.58 0.00000
> 2.6.0-test6 64 2.96 3.93% 73.537 4484.06 0.00000
> 2.6.0-test6-mm4 64 3.29 4.98% 22.802 2206.78 0.00000
> 2.6.0-test7 64 3.42 5.00% 27.782 2453.44 0.00000
>
> 2.6.0-test5 128 3.73 5.92% 48.524 7848.01 1.10887
> 2.6.0-test5-mm2 128 3.39 5.91% 36.168 5651.07 0.25202
> 2.6.0-test5-mm4 128 3.55 6.74% 70.991 6856.35 1.94052
> 2.6.0-test6 128 3.16 5.58% 43.277 5286.77 0.05040
> 2.6.0-test6-mm4 128 3.17 5.25% 43.818 5534.13 0.30242
> 2.6.0-test7 128 3.26 5.26% 39.051 3037.10 0.00000
>
> 2.6.0-test5 256 3.96 8.27% 8.806 963.34 0.00000
> 2.6.0-test5-mm2 256 3.67 7.17% 20.000 1575.35 0.00000
> 2.6.0-test5-mm4 256 3.36 6.99% 114.310 4266.84 1.61458
> 2.6.0-test6 256 3.10 6.69% 132.312 8228.26 3.30729
> 2.6.0-test6-mm4 256 3.21 6.79% 88.532 8631.04 1.79687
> 2.6.0-test7 256 3.23 6.61% 48.643 6005.85 0.75521
>
> Sequential Reads xfs
> Num Avg Maximum Lat%
> Kernel Thr Rate (CPU%) Latency Latency >2s
> ------------------------- --- --------------------------------------------
> 2.6.0-test5 1 30.46 14.80% 0.382 718.97 0.00000
> 2.6.0-test5-mm2 1 28.43 14.31% 0.409 729.27 0.00000
> 2.6.0-test5-mm4 1 29.25 14.50% 0.398 751.10 0.00000
> 2.6.0-test6 1 29.25 14.52% 0.398 735.45 0.00000
> 2.6.0-test6-mm4 1 28.68 14.60% 0.406 924.52 0.00000
> 2.6.0-test7 1 29.20 14.46% 0.398 727.21 0.00000
>
> 2.6.0-test5 8 55.34 28.06% 1.652 831.66 0.00000
> 2.6.0-test5-mm2 8 54.19 28.05% 1.707 852.34 0.00000
> 2.6.0-test5-mm4 8 55.49 28.38% 1.591 1165.42 0.00000
> 2.6.0-test6 8 25.17 11.78% 3.562 1987.22 0.00000
> 2.6.0-test6-mm4 8 23.25 11.32% 3.989 1872.56 0.00000
> 2.6.0-test7 8 25.91 12.19% 3.443 1894.36 0.00000
>
> 2.6.0-test5 16 47.04 23.31% 3.903 846.86 0.00000
> 2.6.0-test5-mm2 16 45.50 23.01% 4.086 1116.23 0.00000
> 2.6.0-test5-mm4 16 47.00 23.78% 3.827 822.79 0.00000
> 2.6.0-test6 16 15.07 7.14% 12.090 3088.51 0.00000
> 2.6.0-test6-mm4 16 12.58 6.23% 14.655 3469.24 0.00000
> 2.6.0-test7 16 14.79 7.03% 11.808 3178.50 0.00000
>
> 2.6.0-test5 32 44.85 22.40% 7.699 1225.63 0.00000
> 2.6.0-test5-mm2 32 45.89 23.39% 7.624 1173.54 0.00000
> 2.6.0-test5-mm4 32 44.18 22.68% 7.940 1051.95 0.00000
> 2.6.0-test6 32 14.80 7.02% 24.021 5758.07 0.00005
> 2.6.0-test6-mm4 32 14.18 6.98% 25.241 5709.74 0.00000
> 2.6.0-test7 32 12.46 6.03% 29.086 5836.49 0.00029
>
> 2.6.0-test5 64 42.08 21.45% 16.269 1897.20 0.00000
> 2.6.0-test5-mm2 64 42.36 21.75% 15.948 1925.10 0.00000
> 2.6.0-test5-mm4 64 43.77 22.73% 15.396 1963.29 0.00000
> 2.6.0-test6 64 12.50 5.98% 53.864 10887.40 1.74727
> 2.6.0-test6-mm4 64 12.37 6.19% 55.962 10690.33 1.82176
> 2.6.0-test7 64 12.25 5.95% 56.211 10899.32 1.78017
>
> 2.6.0-test5 128 15.41 12.23% 87.001 2911.16 0.00000
> 2.6.0-test5-mm2 128 20.45 15.21% 61.549 2516.86 0.00000
> 2.6.0-test5-mm4 128 18.55 14.38% 68.572 2527.97 0.00000
> 2.6.0-test6 128 5.20 4.07% 251.782 18918.92 4.34985
> 2.6.0-test6-mm4 128 4.47 3.56% 290.774 19729.60 5.13649
> 2.6.0-test7 128 3.50 3.19% 385.879 20057.71 6.42790
>
> 2.6.0-test5 256 10.33 13.76% 225.449 6314.51 0.00167
> 2.6.0-test5-mm2 256 10.58 14.19% 206.025 9145.94 0.00219
> 2.6.0-test5-mm4 256 11.64 15.40% 175.294 11398.84 0.00677
> 2.6.0-test6 256 3.84 3.42% 539.606 972621.75 5.75909
> 2.6.0-test6-mm4 256 3.92 3.35% 527.548 867696.31 5.66021
> 2.6.0-test7 256 3.99 3.52% 511.822 865743.62 5.56827
>
> Random Reads xfs
> Num Avg Maximum Lat%
> Kernel Thr Rate (CPU%) Latency Latency >2s
> ------------------------- --- --------------------------------------------
> 2.6.0-test5 1 1.03 0.94% 11.357 107.82 0.00000
> 2.6.0-test5-mm2 1 1.03 1.02% 11.325 117.87 0.00000
> 2.6.0-test5-mm4 1 1.04 1.03% 11.261 107.89 0.00000
> 2.6.0-test6 1 1.03 0.92% 11.386 109.39 0.00000
> 2.6.0-test6-mm4 1 1.00 1.04% 11.659 119.70 0.00000
> 2.6.0-test7 1 1.05 0.92% 11.161 96.11 0.00000
>
> 2.6.0-test5 8 5.42 5.19% 16.257 124.33 0.00000
> 2.6.0-test5-mm2 8 5.36 5.79% 16.591 120.16 0.00000
> 2.6.0-test5-mm4 8 4.67 4.80% 16.448 104.77 0.00000
> 2.6.0-test6 8 2.08 1.68% 38.061 775.61 0.00000
> 2.6.0-test6-mm4 8 2.16 1.95% 37.981 686.42 0.00000
> 2.6.0-test7 8 1.88 1.64% 42.173 683.55 0.00000
>
> 2.6.0-test5 16 5.20 4.62% 34.058 146.53 0.00000
> 2.6.0-test5-mm2 16 5.21 4.88% 34.306 175.88 0.00000
> 2.6.0-test5-mm4 16 5.18 4.84% 32.751 135.47 0.00000
> 2.6.0-test6 16 1.86 1.44% 85.898 1244.64 0.00000
> 2.6.0-test6-mm4 16 1.95 1.64% 80.971 1175.91 0.00000
> 2.6.0-test7 16 2.35 1.98% 67.271 1001.72 0.00000
>
> 2.6.0-test5 32 4.91 3.98% 68.586 265.91 0.00000
> 2.6.0-test5-mm2 32 5.43 4.74% 63.283 279.95 0.00000
> 2.6.0-test5-mm4 32 4.69 4.28% 68.452 638.24 0.00000
> 2.6.0-test6 32 2.92 2.41% 113.627 1626.83 0.00000
> 2.6.0-test6-mm4 32 3.14 2.92% 105.714 1451.06 0.00000
> 2.6.0-test7 32 2.43 1.91% 134.936 1864.81 0.00000
>
> 2.6.0-test5 64 4.76 4.02% 136.805 879.54 0.00000
> 2.6.0-test5-mm2 64 4.66 4.68% 136.498 871.90 0.00000
> 2.6.0-test5-mm4 64 4.81 4.75% 131.041 994.54 0.00000
> 2.6.0-test6 64 1.45 1.25% 425.661 5262.95 0.02520
> 2.6.0-test6-mm4 64 1.66 1.40% 382.569 4759.16 0.00000
> 2.6.0-test7 64 1.41 1.21% 444.027 5820.44 0.30242
>
> 2.6.0-test5 128 4.70 4.50% 248.562 1396.77 0.00000
> 2.6.0-test5-mm2 128 5.29 5.72% 206.313 1395.33 0.00000
> 2.6.0-test5-mm4 128 5.16 4.95% 209.001 1485.37 0.00000
> 2.6.0-test6 128 1.65 1.57% 753.959 9498.63 9.02218
> 2.6.0-test6-mm4 128 1.47 1.43% 833.261 9951.50 11.54233
> 2.6.0-test7 128 1.23 1.06% 969.453 10793.66 18.04436
>
> 2.6.0-test5 256 4.82 6.71% 469.459 2140.97 0.00000
> 2.6.0-test5-mm2 256 4.60 6.06% 477.682 1934.27 0.00000
> 2.6.0-test5-mm4 256 5.01 6.60% 402.622 1881.24 0.00000
> 2.6.0-test6 256 0.90 0.99% 2204.619 32794.62 42.68229
> 2.6.0-test6-mm4 256 0.88 0.98% 2165.705 33928.64 41.09376
> 2.6.0-test7 256 0.92 1.05% 2113.981 33637.27 39.11458
>
> Sequential Writes xfs
> Num Avg Maximum Lat%
> Kernel Thr Rate (CPU%) Latency Latency >2s
> ------------------------- --- --------------------------------------------
> 2.6.0-test5 1 56.44 46.30% 0.182 68379.68 0.00030
> 2.6.0-test5-mm2 1 56.33 47.39% 0.186 68474.74 0.00030
> 2.6.0-test5-mm4 1 56.30 46.74% 0.182 68268.99 0.00030
> 2.6.0-test6 1 56.24 46.08% 0.177 68501.77 0.00030
> 2.6.0-test6-mm4 1 56.17 47.57% 0.175 68404.17 0.00030
> 2.6.0-test7 1 56.26 46.03% 0.171 68451.18 0.00030
>
> 2.6.0-test5 8 57.54 65.47% 0.991 166706.97 0.00424
> 2.6.0-test5-mm2 8 57.70 70.44% 1.099 211950.97 0.00420
> 2.6.0-test5-mm4 8 57.23 66.09% 1.042 205671.61 0.00415
> 2.6.0-test6 8 57.19 69.31% 1.058 185132.73 0.00410
> 2.6.0-test6-mm4 8 57.46 66.82% 1.100 178544.18 0.00486
> 2.6.0-test7 8 57.24 64.93% 1.096 207662.87 0.00481
>
> 2.6.0-test5 16 57.26 71.20% 2.069 186551.11 0.01030
> 2.6.0-test5-mm2 16 57.26 72.02% 2.079 187786.90 0.01059
> 2.6.0-test5-mm4 16 57.38 68.91% 1.999 193908.75 0.00958
> 2.6.0-test6 16 57.24 70.72% 2.072 185124.29 0.01092
> 2.6.0-test6-mm4 16 57.37 68.99% 2.080 208981.25 0.01045
> 2.6.0-test7 16 57.17 68.79% 2.051 181396.29 0.01135
>
> 2.6.0-test5 32 57.29 75.00% 4.076 211670.36 0.01840
> 2.6.0-test5-mm2 32 57.34 73.21% 3.768 213556.33 0.01560
> 2.6.0-test5-mm4 32 57.27 75.59% 4.007 199887.88 0.01708
> 2.6.0-test6 32 57.12 73.89% 4.007 198273.60 0.01750
> 2.6.0-test6-mm4 32 57.04 73.27% 4.034 181071.17 0.01688
> 2.6.0-test7 32 57.04 72.85% 4.066 193571.15 0.02007
>
> 2.6.0-test5 64 57.13 83.01% 8.186 336901.61 0.03567
> 2.6.0-test5-mm2 64 56.93 83.63% 8.062 340355.98 0.03066
> 2.6.0-test5-mm4 64 56.33 82.10% 7.834 325305.64 0.02895
> 2.6.0-test6 64 56.48 80.10% 7.829 306781.15 0.03157
> 2.6.0-test6-mm4 64 56.87 81.05% 7.808 257430.27 0.03662
> 2.6.0-test7 64 56.54 77.01% 7.746 347269.10 0.02880
>
> 2.6.0-test5 128 56.58 86.45% 15.451 330514.59 0.06585
> 2.6.0-test5-mm2 128 56.78 82.31% 14.164 364774.73 0.05298
> 2.6.0-test5-mm4 128 55.57 82.39% 14.088 350137.61 0.05364
> 2.6.0-test6 128 56.08 81.22% 13.917 377412.59 0.04669
> 2.6.0-test6-mm4 128 56.43 79.05% 14.332 357252.17 0.05203
> 2.6.0-test7 128 56.28 77.14% 14.465 351042.94 0.05546
>
> 2.6.0-test5 256 56.13 83.69% 19.836 383235.17 0.07386
> 2.6.0-test5-mm2 256 56.19 80.90% 16.880 294598.89 0.07434
> 2.6.0-test5-mm4 256 56.09 87.58% 13.343 308894.90 0.05746
> 2.6.0-test6 256 55.39 80.57% 18.269 350145.38 0.07200
> 2.6.0-test6-mm4 256 55.67 81.98% 17.338 337290.04 0.06890
> 2.6.0-test7 256 55.49 82.29% 15.776 351541.33 0.06071
>
> Random Writes xfs
> Num Avg Maximum Lat%
> Kernel Thr Rate (CPU%) Latency Latency >2s
> ------------------------- --- --------------------------------------------
> 2.6.0-test5 1 3.80 3.61% 0.074 0.46 0.00000
> 2.6.0-test5-mm2 1 3.86 3.77% 0.077 0.42 0.00000
> 2.6.0-test5-mm4 1 3.77 3.65% 0.078 1.42 0.00000
> 2.6.0-test6 1 3.76 3.53% 0.075 1.43 0.00000
> 2.6.0-test6-mm4 1 3.71 3.64% 0.078 0.68 0.00000
> 2.6.0-test7 1 3.76 3.53% 0.075 0.87 0.00000
>
> 2.6.0-test5 8 3.97 6.78% 0.202 95.59 0.00000
> 2.6.0-test5-mm2 8 3.91 6.75% 0.181 75.97 0.00000
> 2.6.0-test5-mm4 8 3.87 6.57% 0.191 81.43 0.00000
> 2.6.0-test6 8 3.86 6.63% 0.165 25.62 0.00000
> 2.6.0-test6-mm4 8 3.82 6.33% 0.166 39.50 0.00000
> 2.6.0-test7 8 3.92 6.44% 0.181 74.95 0.00000
>
> 2.6.0-test5 16 3.95 6.81% 0.168 32.20 0.00000
> 2.6.0-test5-mm2 16 3.94 6.99% 0.175 48.13 0.00000
> 2.6.0-test5-mm4 16 3.82 6.53% 0.186 87.83 0.00000
> 2.6.0-test6 16 3.76 6.58% 0.168 25.32 0.00000
> 2.6.0-test6-mm4 16 3.81 6.62% 0.193 83.97 0.00000
> 2.6.0-test7 16 3.89 6.57% 0.181 92.60 0.00000
>
> 2.6.0-test5 32 3.85 6.64% 0.159 3.38 0.00000
> 2.6.0-test5-mm2 32 3.80 6.75% 0.175 59.86 0.00000
> 2.6.0-test5-mm4 32 3.72 6.60% 0.180 55.04 0.00000
> 2.6.0-test6 32 3.80 6.73% 0.175 56.73 0.00000
> 2.6.0-test6-mm4 32 3.81 6.61% 0.171 55.65 0.00000
> 2.6.0-test7 32 3.60 5.97% 0.155 3.09 0.00000
>
> 2.6.0-test5 64 3.68 6.56% 0.161 3.90 0.00000
> 2.6.0-test5-mm2 64 3.60 6.51% 0.163 6.67 0.00000
> 2.6.0-test5-mm4 64 3.71 6.58% 0.166 5.44 0.00000
> 2.6.0-test6 64 3.53 6.32% 0.160 4.14 0.00000
> 2.6.0-test6-mm4 64 3.54 6.21% 0.185 106.22 0.00000
> 2.6.0-test7 64 3.61 6.15% 0.156 4.34 0.00000
>
> 2.6.0-test5 128 3.32 6.23% 0.166 4.42 0.00000
> 2.6.0-test5-mm2 128 3.64 6.70% 0.163 2.98 0.00000
> 2.6.0-test5-mm4 128 3.71 6.85% 0.169 5.37 0.00000
> 2.6.0-test6 128 3.44 6.25% 0.174 63.35 0.00000
> 2.6.0-test6-mm4 128 3.49 6.36% 0.174 64.77 0.00000
> 2.6.0-test7 128 3.43 6.15% 0.159 4.05 0.00000
>
> 2.6.0-test5 256 3.35 6.56% 0.161 3.65 0.00000
> 2.6.0-test5-mm2 256 3.29 6.41% 0.164 3.68 0.00000
> 2.6.0-test5-mm4 256 3.27 6.35% 0.166 4.84 0.00000
> 2.6.0-test6 256 2.97 5.80% 0.171 47.92 0.00000
> 2.6.0-test6-mm4 256 3.06 5.93% 0.159 3.02 0.00000
> 2.6.0-test7 256 3.11 5.88% 0.159 3.91 0.00000
>
>
> dbench did not regress.
>
> dbench-1.3 reiserfs 192 processes Average +/- MB/sec
> 2.6.0-test7 77.3 7.1
> 2.6.0-test6-mm4 76.6 7.2
> 2.6.0-test5-mm2 76.1 6.8
> 2.6.0-test6 73.0 5.1
> 2.6.0-test5-mm4 72.5 6.6
> 2.6.0-test5 65.0 1.2
>
> dbench-1.3 reiserfs 64 processes Average +/- MB/sec
> 2.6.0-test5-mm4 111.4 9.1
> 2.6.0-test6-mm4 109.6 7.5
> 2.6.0-test6 108.8 4.2
> 2.6.0-test5-mm2 104.4 8.1
> 2.6.0-test7 102.3 8.1
> 2.6.0-test5 100.6 4.7
>
> dbench-1.3 xfs 192 processes Average +/- MB/sec
> 2.6.0-test5 112.5 4.0
> 2.6.0-test5-mm2 110.8 1.6
> 2.6.0-test6-mm4 110.7 3.4
> 2.6.0-test5-mm4 109.7 2.0
> 2.6.0-test7 109.0 5.1
> 2.6.0-test6 108.5 6.1
>
> dbench-1.3 xfs 64 processes Average +/- MB/sec
> 2.6.0-test5 143.7 0.9
> 2.6.0-test7 143.6 2.1
> 2.6.0-test5-mm2 141.5 1.6
> 2.6.0-test6 141.4 0.5
> 2.6.0-test6-mm4 141.2 1.5
> 2.6.0-test5-mm4 140.0 1.4
>
> dbench-1.3 ext2 192 processes Average +/- MB/sec
> 2.6.0-test6 209.5 11.8
> 2.6.0-test7 205.2 20.8
> 2.6.0-test5-mm4 200.8 6.2
> 2.6.0-test5-mm2 200.0 10.3
> 2.6.0-test5 198.1 19.5
> 2.6.0-test6-mm4 193.4 12.0
>
> dbench-1.3 ext2 64 processes Average +/- MB/sec
> 2.6.0-test7 256.8 0.6
> 2.6.0-test6 256.7 1.6
> 2.6.0-test5 256.2 1.6
> 2.6.0-test5-mm4 255.5 1.4
> 2.6.0-test5-mm2 255.3 0.9
> 2.6.0-test6-mm4 255.3 1.7
>
> dbench-1.3 jfs 192 processes Average +/- MB/sec
> 2.6.0-test5-mm4 11.3 0.5
> 2.6.0-test7 11.1 0.2
> 2.6.0-test6-mm4 11.0 0.3
>
> dbench-1.3 jfs 64 processes Average +/- MB/sec
> 2.6.0-test5-mm2 20.0 2.9
> 2.6.0-test5 19.5 2.4
> 2.6.0-test5-mm4 18.6 2.4
> 2.6.0-test7 18.5 1.1
> 2.6.0-test6-mm4 18.1 1.6
>
> dbench-1.3 ext3 192 processes Average +/- MB/sec
> 2.6.0-test7 110.8 23.1
> 2.6.0-test5-mm2 107.5 39.7
> 2.6.0-test6 103.9 39.0
> 2.6.0-test6-mm4 99.7 38.7
> 2.6.0-test5-mm4 82.6 35.5
> 2.6.0-test5 73.6 15.1
>
> dbench-1.3 ext3 64 processes Average +/- MB/sec
> 2.6.0-test7 177.9 3.4
> 2.6.0-test6 175.1 3.6
> 2.6.0-test5 174.5 4.2
> 2.6.0-test6-mm4 174.2 2.5
> 2.6.0-test5-mm2 172.8 4.0
> 2.6.0-test5-mm4 172.6 2.3
>
>
> --
> Randy Hron
> http://home.earthlink.net/~rwhron/kernel/bigbox.html
>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.tux.org/lkml/
next prev parent reply other threads:[~2003-10-20 4:52 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-10-20 0:37 [BENCHMARK] I/O regression after 2.6.0-test5 rwhron
2003-10-20 1:35 ` Nick Piggin
2003-10-20 4:52 ` Andrew Morton
2003-10-20 8:12 ` Nick Piggin
2003-10-20 4:51 ` Dave Olien [this message]
2003-10-20 7:55 ` venom
2003-10-21 4:49 ` Nick Piggin
2003-10-24 13:52 ` Magnus Andersson
-- strict thread matches above, loose matches on Subject: below --
2003-10-21 13:05 rwhron
2003-10-21 15:57 ` Nick Piggin
2003-10-21 21:07 ` venom
2003-10-22 9:54 ` Nick Piggin
2003-10-22 18:30 ` Dave Olien
2003-10-22 19:08 ` Dave Olien
2003-10-23 2:24 ` Nick Piggin
2003-10-23 3:48 ` Nick Piggin
2003-10-23 20:35 ` Dave Olien
2003-10-23 23:07 ` Nick Piggin
2003-10-24 0:10 rwhron
2003-10-24 12:46 rwhron
2003-10-24 23:43 rwhron
2003-10-26 10:38 rwhron
2003-10-27 23:49 ` Dave Olien
2003-10-27 23:33 John Hawkes
2003-10-29 0:38 rwhron
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