From: William Lee Irwin III <wli@holomorphy.com>
To: linux-kernel@vger.kernel.org
Subject: Re: 2.5.31 kmap_atomic copy_*_user benefits
Date: Thu, 15 Aug 2002 16:31:14 -0700 [thread overview]
Message-ID: <20020815233114.GV15685@holomorphy.com> (raw)
In-Reply-To: <20020815232126.GR15685@holomorphy.com>
On Thu, Aug 15, 2002 at 04:21:26PM -0700, William Lee Irwin III wrote:
> In the follow-ups I'll include oprofile numbers for each and vmstat logs.
vmstat log from after:
Script started on Thu Aug 15 18:59:14 2002
$ vmstat 10
procs memory swap io system cpu
r b w swpd free buff cache si so bi bo in cs us sy id
0 0 0 0 16002532 0 42580 0 0 14 1 65 6 0 1 99
0 0 0 0 16002524 0 42588 0 0 1 0 1006 12 0 0 100
1 1 0 0 15930364 0 43740 0 0 116 17 1055 66 0 2 98
43 469 0 0 15685644 0 234880 0 0 100 3 1053 1276 0 15 85
23 489 0 0 14662044 0 1231044 0 0 87 0 1066 4888 1 73 26
20 492 1 0 13579932 0 2285476 0 0 55 175 1071 5795 1 81 18
26 486 1 0 12964732 0 2885648 0 0 26 586 1179 3185 1 46 53
26 486 1 0 11873320 0 3950852 0 0 90 537 1198 6224 2 86 12
17 495 1 0 10867228 0 4933188 0 0 63 532 1205 6209 3 86 12
21 491 1 0 10177340 0 5603044 0 0 42 1738 1191 4521 2 64 34
21 491 1 0 9294060 0 6464972 0 0 54 2562 1154 6687 3 84 12
21 491 1 0 8515076 0 7224868 0 0 56 2646 1172 7587 4 81 16
23 489 1 0 7827388 0 7895268 0 0 20 2805 1152 7307 4 81 16
28 484 1 0 7144504 0 8562912 0 0 49 2669 1172 7645 4 80 16
1 511 1 0 6947076 0 8753936 0 0 20 2867 1127 3413 2 31 67
1 511 1 0 6941276 0 8759728 0 0 0 2764 1103 8 0 2 98
0 512 1 0 6935196 0 8765788 0 0 0 2722 1102 9 0 2 98
1 511 1 0 6932872 0 8768024 0 0 0 2796 1102 9 0 2 98
1 511 1 0 6925744 0 8774612 0 0 0 2820 1107 10 0 2 98
0 512 1 0 6919924 0 8780860 0 0 0 2736 1103 10 0 2 98
0 512 1 0 6911104 0 8789408 0 0 0 2794 1106 11 0 2 98
procs memory swap io system cpu
r b w swpd free buff cache si so bi bo in cs us sy id
1 511 1 0 6882308 0 8817992 0 0 81 2778 1114 19 0 4 96
0 512 1 0 6852444 0 8846940 0 0 1 2782 1111 33 1 4 95
0 512 1 0 6822936 0 8875476 0 0 1 2854 1112 27 1 5 95
0 512 1 0 6794624 0 8903744 0 0 1 2711 1111 23 0 4 96
1 511 1 0 6766444 0 8931032 0 0 1 2807 1112 19 0 4 96
2 510 1 0 6737392 0 8959148 0 0 2 2815 1131 211 1 7 92
0 512 1 0 6710268 0 8986204 0 0 1 2739 1114 16 0 3 97
2 510 1 0 6681840 0 9013796 0 0 1 2831 1113 17 0 3 96
0 512 1 0 6651576 0 9043280 0 0 1 2774 1113 37 0 4 95
0 512 1 0 6624220 0 9070548 0 0 2 2698 1114 31 1 5 95
1 511 1 0 6595480 0 9097904 0 0 0 2755 1110 12 0 3 97
0 512 1 0 6568812 0 9124480 0 0 2 2651 1108 10 0 3 97
2 510 1 0 6543284 0 9149532 0 0 1 2669 1110 26 0 3 97
4 508 1 0 6517608 0 9174580 0 0 2 2758 1119 24 0 4 96
0 512 1 0 6482120 0 9208992 0 0 35 2822 1113 25 1 4 95
1 511 1 0 6455904 0 9234968 0 0 2 2778 1114 21 0 4 96
0 512 1 0 6427148 0 9262844 0 0 2 2766 1113 73 0 4 95
0 512 1 0 6398152 0 9291056 0 0 3 2812 1113 25 0 4 96
0 512 1 0 6369636 0 9318848 0 0 2 2684 1110 30 0 4 96
4 508 1 0 6340556 0 9346788 0 0 2 2798 1113 78 0 4 95
0 512 1 0 6314476 0 9372824 0 0 3 2639 1112 60 1 5 94
procs memory swap io system cpu
r b w swpd free buff cache si so bi bo in cs us sy id
2 510 1 0 6292692 0 9394500 0 0 2 2614 1114 25 0 4 96
1 511 1 0 6256836 0 9428792 0 0 33 2877 1112 27 0 4 96
5 507 1 0 6230128 0 9455580 0 0 3 2665 1122 78 1 5 95
0 512 1 0 6202904 0 9482552 0 0 1 2707 1111 11 0 3 97
1 511 1 0 6174600 0 9509992 0 0 2 2781 1111 15 0 3 96
1 511 1 0 6144816 0 9538540 0 0 34 2706 1113 19 0 4 96
0 512 1 0 6122140 0 9562136 0 0 0 2573 1109 10 0 2 97
0 512 1 0 6089840 0 9592612 0 0 2 2753 1121 404 1 10 89
1 511 1 0 6065520 0 9616676 0 0 2 2641 1116 34 1 5 95
0 512 1 0 6036664 0 9644620 0 0 2 2764 1120 105 1 6 93
1 511 1 0 6009552 0 9671124 0 0 1 2674 1107 16 0 3 96
0 512 1 0 5981040 0 9698748 0 0 1 2725 1114 38 1 6 94
0 512 1 0 5950392 0 9729124 0 0 2 2671 1113 34 1 5 95
1 511 1 0 5929216 0 9749660 0 0 1 2711 1117 31 1 5 94
3 509 1 0 5898468 0 9779472 0 0 36 2843 1127 341 2 10 89
0 512 1 0 5867756 0 9809476 0 0 1 2693 1111 20 0 4 95
1 511 1 0 5841120 0 9835296 0 0 1 2712 1120 89 1 6 93
0 512 1 0 5813404 0 9862876 0 0 2 2648 1112 28 0 4 95
0 512 1 0 5785760 0 9889380 0 0 1 2761 1111 16 0 4 96
1 511 1 0 5759816 0 9915052 0 0 2 2577 1119 68 1 5 94
2 510 1 0 5733596 0 9940948 0 0 1 2604 1117 87 1 7 92
procs memory swap io system cpu
r b w swpd free buff cache si so bi bo in cs us sy id
0 512 1 0 5703988 0 9969072 0 0 2 2811 1119 50 1 5 94
1 511 1 0 5677608 0 9995452 0 0 0 2611 1113 38 0 4 95
0 512 1 0 5648928 0 10023256 0 0 1 2700 1110 14 0 3 96
0 512 1 0 5622476 0 10049120 0 0 2 2647 1114 105 1 6 93
0 512 1 0 5595304 0 10075880 0 0 2 2640 1114 97 1 5 94
11 501 1 0 5566652 0 10104140 0 0 29 2677 1131 157 1 8 91
0 512 1 0 5539044 0 10130500 0 0 44 2735 1115 64 1 6 93
1 511 1 0 5509824 0 10159292 0 0 1 2794 1112 18 1 4 95
1 511 1 0 5479264 0 10188748 0 0 4 2924 1115 92 1 6 93
0 512 1 0 5451112 0 10216728 0 0 1 2833 1109 20 0 4 96
3 509 1 0 5422476 0 10244456 0 0 4 2769 1116 104 1 7 92
0 512 1 0 5395264 0 10271476 0 0 3 2740 1115 88 1 6 93
0 512 1 0 5365012 0 10300472 0 0 3 2918 1114 64 1 6 93
0 512 1 0 5335636 0 10329120 0 0 3 2842 1113 68 1 6 93
0 512 1 0 5307068 0 10357588 0 0 1 2784 1112 80 1 6 93
1 511 1 0 5277820 0 10385904 0 0 2 2860 1118 391 1 9 89
1 511 1 0 5250884 0 10412244 0 0 2 2848 1111 34 1 5 94
1 510 1 0 5232856 0 10428864 0 0 3 2885 1158 416 2 12 86
0 511 1 0 5204232 0 10456380 0 0 2 2983 1132 93 1 5 95
1 510 1 0 5175584 0 10484564 0 0 1 2873 1113 54 0 4 96
0 511 1 0 5146928 0 10513124 0 0 1 2802 1116 196 1 6 93
procs memory swap io system cpu
r b w swpd free buff cache si so bi bo in cs us sy id
0 511 1 0 5119044 0 10540228 0 0 1 2939 1128 165 1 5 94
2 509 1 0 5090140 0 10568236 0 0 0 2900 1144 225 1 6 93
1 510 1 0 5060380 0 10597712 0 0 1 2854 1123 183 1 5 95
0 511 1 0 5034576 0 10623048 0 0 4 2884 1131 233 1 6 93
0 511 1 0 5005072 0 10652112 0 0 0 2882 1119 226 1 5 94
1 510 1 0 4976928 0 10679624 0 0 2 2909 1124 440 1 9 90
3 508 1 0 4944776 0 10710280 0 0 2 3004 1128 478 1 9 90
1 511 1 0 4919448 0 10735704 0 0 2 2809 1124 969 1 13 86
1 510 1 0 4887604 0 10766520 0 0 2 3048 1131 285 1 7 92
2 509 1 0 4859396 0 10793948 0 0 2 2884 1124 280 1 6 93
12 499 1 0 4829296 0 10823572 0 0 0 2933 1131 287 1 6 93
0 511 1 0 4797996 0 10854836 0 0 2 2755 1122 356 1 6 93
3 508 1 0 4776392 0 10875784 0 0 5 2811 1129 769 1 11 87
0 511 1 0 4743864 0 10907520 0 0 0 2953 1133 1265 2 16 82
0 510 1 0 4721440 0 10929336 0 0 2 2931 1127 502 1 13 85
1 509 1 0 4694216 0 10955792 0 0 2 2870 1118 276 1 7 92
0 510 1 0 4666732 0 10982952 0 0 1 2876 1119 328 1 7 92
1 509 1 0 4638948 0 11009820 0 0 2 2957 1117 286 1 6 94
0 510 1 0 4610756 0 11037696 0 0 2 2852 1119 307 1 7 92
2 508 1 0 4583104 0 11064692 0 0 0 2906 1118 339 1 7 93
11 499 1 0 4560252 0 11087580 0 0 1 2845 1162 843 1 10 88
procs memory swap io system cpu
r b w swpd free buff cache si so bi bo in cs us sy id
6 504 1 0 4521020 0 11125024 0 0 165 2869 1165 1538 2 14 84
8 500 1 0 4531608 0 11114800 0 0 597 2870 1219 2330 2 21 77
0 508 1 0 4487936 0 11157312 0 0 365 2976 1169 1824 2 18 80
0 506 1 0 4496284 0 11149280 0 0 3 2810 1146 2037 3 20 77
3 503 1 0 4468680 0 11176552 0 0 0 2907 1130 652 1 6 93
0 506 1 0 4438204 0 11206216 0 0 2 2952 1133 1979 2 14 84
0 506 1 0 4409364 0 11234576 0 0 0 2903 1122 370 1 8 91
29 474 1 0 4441240 0 11202836 0 0 3 3190 1291 2299 3 37 60
28 471 1 0 4477508 0 11167108 0 0 2 2930 1195 10508 7 79 14
19 477 1 0 4503452 0 11141696 0 0 4 2867 1209 9993 7 75 18
23 471 2 0 4483828 0 11161828 0 0 3 2976 1253 8403 6 76 17
18 475 1 0 4465124 0 11183244 0 0 4 2478 1193 9252 7 72 22
26 465 2 0 4460604 0 11187652 0 0 2 1678 1240 8358 7 73 20
16 473 1 0 4481356 0 11163940 0 0 1 1336 1238 9286 7 72 22
32 456 1 0 4472860 0 11171464 0 0 2 2210 1252 9309 7 71 22
22 466 1 0 4615392 0 11031960 0 0 0 1413 1212 10223 7 67 26
21 462 6 0 4774272 0 10871584 0 0 0 1874 1322 8649 6 76 18
17 461 5 0 4874708 0 10771480 0 0 0 1738 1202 9156 6 71 23
35 438 2 0 5011440 0 10638120 0 0 0 1246 1232 8524 7 74 20
18 446 4 0 5079604 0 10568312 0 0 0 2760 1213 8706 7 74 20
29 428 3 0 5274500 0 10374876 0 0 0 1940 1234 8993 6 74 20
procs memory swap io system cpu
r b w swpd free buff cache si so bi bo in cs us sy id
15 434 4 0 5490296 0 10161236 0 0 0 2080 1225 8980 6 73 21
11 439 1 0 5616836 0 10035308 0 0 0 2126 1196 10325 7 67 26
18 423 4 0 5881364 0 9769676 0 0 0 932 1221 8675 6 75 19
12 415 4 0 6120552 0 9534052 0 0 0 1750 1218 9150 6 73 20
14 400 7 0 6486700 0 9169252 0 0 0 2546 1202 8861 6 73 21
23 375 3 0 6892552 0 8767868 0 0 0 1910 1210 8789 6 75 19
13 367 7 0 7189680 0 8473360 0 0 0 1978 1195 8727 6 74 20
19 345 9 0 7579952 0 8082436 0 0 0 2484 1180 8758 6 75 19
22 329 3 0 7990672 0 7673816 0 0 0 2966 1201 9331 6 72 22
15 321 2 0 8531100 0 7135212 0 0 0 2958 1172 9089 6 73 21
27 277 6 0 9068984 0 6602336 0 0 0 3030 1197 8460 5 75 19
28 246 2 0 9624396 0 6051168 0 0 0 2983 1170 8323 6 76 18
27 226 4 0 10193168 0 5485828 0 0 0 2852 1159 8433 6 74 20
44 177 5 0 10833884 0 4849916 0 0 0 2955 1174 7071 5 80 15
23 164 5 0 11593864 0 4095216 0 0 0 2956 1166 7079 5 80 15
19 123 7 0 12347016 0 3348140 0 0 0 3083 1168 5243 5 82 13
45 66 2 0 13234756 0 2465732 0 0 0 2824 1142 4539 4 82 14
21 4 1 0 15005744 0 707192 0 0 0 2997 1119 476 1 58 41
0 0 1 0 15411664 0 377924 0 0 0 1531 1131 52 0 14 86
Script done on Thu Aug 15 19:24:01 2002
next prev parent reply other threads:[~2002-08-15 23:29 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-08-15 23:21 2.5.31 kmap_atomic copy_*_user benefits William Lee Irwin III
2002-08-15 23:26 ` William Lee Irwin III
2002-08-15 23:27 ` William Lee Irwin III
2002-08-15 23:30 ` William Lee Irwin III
2002-08-15 23:31 ` William Lee Irwin III [this message]
2002-08-15 23:35 ` William Lee Irwin III
2002-08-18 8:36 ` Daniel Phillips
2002-08-16 2:10 ` Dave Hansen
2002-08-16 2:44 ` William Lee Irwin III
2002-08-16 2:52 ` Dave Hansen
2002-08-16 6:33 ` Andrew Morton
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