From: Ronald Moesbergen <intercommit@gmail.com>
To: Vladislav Bolkhovitin <vst@vlnb.net>
Cc: fengguang.wu@intel.com, linux-kernel@vger.kernel.org,
akpm@linux-foundation.org, kosaki.motohiro@jp.fujitsu.com,
Alan.Brunelle@hp.com, linux-fsdevel@vger.kernel.org,
jens.axboe@oracle.com, randy.dunlap@oracle.com,
Bart Van Assche <bart.vanassche@gmail.com>
Subject: Re: [RESEND] [PATCH] readahead:add blk_run_backing_dev
Date: Wed, 22 Jul 2009 10:44:24 +0200 [thread overview]
Message-ID: <a0272b440907220144i159baca4u1a1f1f2d0c36193a@mail.gmail.com> (raw)
In-Reply-To: <4A641AAC.9030300@vlnb.net>
2009/7/20 Vladislav Bolkhovitin <vst@vlnb.net>:
>>>
>>> The last result comes close to 100MB/s!
>>
>> Good! Although I expected maximum with a single thread.
>>
>> Can you do the same set of tests with deadline scheduler on the server?
>
> Case of 5 I/O threads (default) will also be interesting. I.e., overall,
> cases of 1, 2 and 5 I/O threads with deadline scheduler on the server.
Ok. The results:
Cfq seems to perform better in this case.
client kernel: 2.6.26-15lenny3 (debian)
server kernel: 2.6.29.5 with readahead-context, blk_run_backing_dev
and io_context
server scheduler: deadline
With one IO thread:
5) client: default, server: default
blocksize R R R R(avg, R(std R
(bytes) (s) (s) (s) MB/s) ,MB/s) (IOPS)
67108864 16.067 16.883 16.096 62.669 1.427 0.979
33554432 16.034 16.564 16.050 63.161 0.948 1.974
16777216 16.045 15.086 16.709 64.329 2.715 4.021
6) client: default, server: 64 max_sectors_kb, RA default
blocksize R R R R(avg, R(std R
(bytes) (s) (s) (s) MB/s) ,MB/s) (IOPS)
67108864 15.851 15.348 16.652 64.271 2.147 1.004
33554432 16.182 16.104 16.170 63.397 0.135 1.981
16777216 15.952 16.085 16.258 63.613 0.493 3.976
7) client: default, server: default max_sectors_kb, RA 2MB
blocksize R R R R(avg, R(std R
(bytes) (s) (s) (s) MB/s) ,MB/s) (IOPS)
67108864 15.814 16.222 16.650 63.126 1.327 0.986
33554432 16.113 15.962 16.340 63.456 0.610 1.983
16777216 16.149 16.098 15.895 63.815 0.438 3.988
8) client: default, server: 64 max_sectors_kb, RA 2MB
blocksize R R R R(avg, R(std R
(bytes) (s) (s) (s) MB/s) ,MB/s) (IOPS)
67108864 16.032 17.163 15.864 62.695 2.161 0.980
33554432 16.163 15.499 16.466 63.870 1.626 1.996
16777216 16.067 16.133 16.710 62.829 1.099 3.927
9) client: 64 max_sectors_kb, default RA. server: 64 max_sectors_kb, RA 2MB
blocksize R R R R(avg, R(std R
(bytes) (s) (s) (s) MB/s) ,MB/s) (IOPS)
67108864 15.498 15.474 15.195 66.547 0.599 1.040
33554432 15.729 15.636 15.758 65.192 0.214 2.037
16777216 15.656 15.481 15.724 65.557 0.430 4.097
10) client: default max_sectors_kb, 2MB RA. server: 64 max_sectors_kb, RA 2MB
blocksize R R R R(avg, R(std R
(bytes) (s) (s) (s) MB/s) ,MB/s) (IOPS)
67108864 13.480 14.125 13.648 74.497 1.466 1.164
33554432 13.584 13.518 14.272 74.293 1.806 2.322
16777216 13.511 13.585 13.552 75.576 0.170 4.723
11) client: 64 max_sectors_kb, 2MB. RA server: 64 max_sectors_kb, RA 2MB
blocksize R R R R(avg, R(std R
(bytes) (s) (s) (s) MB/s) ,MB/s) (IOPS)
67108864 13.356 13.079 13.488 76.960 0.991 1.203
33554432 13.713 13.038 13.030 77.268 1.834 2.415
16777216 13.895 13.032 13.128 76.758 2.178 4.797
With two threads:
5) client: default, server: default
blocksize R R R R(avg, R(std R
(bytes) (s) (s) (s) MB/s) ,MB/s) (IOPS)
67108864 12.661 12.773 13.654 78.681 2.622 1.229
33554432 12.709 12.693 12.459 81.145 0.738 2.536
16777216 12.657 14.055 13.237 77.038 3.292 4.815
6) client: default, server: 64 max_sectors_kb, RA default
blocksize R R R R(avg, R(std R
(bytes) (s) (s) (s) MB/s) ,MB/s) (IOPS)
67108864 13.300 12.877 13.705 77.078 1.964 1.204
33554432 13.025 14.404 12.833 76.501 3.855 2.391
16777216 13.172 13.220 12.997 77.995 0.570 4.875
7) client: default, server: default max_sectors_kb, RA 2MB
blocksize R R R R(avg, R(std R
(bytes) (s) (s) (s) MB/s) ,MB/s) (IOPS)
67108864 13.365 13.168 12.835 78.053 1.308 1.220
33554432 13.518 13.122 13.366 76.799 0.942 2.400
16777216 13.177 13.146 13.839 76.534 1.797 4.783
8) client: default, server: 64 max_sectors_kb, RA 2MB
blocksize R R R R(avg, R(std R
(bytes) (s) (s) (s) MB/s) ,MB/s) (IOPS)
67108864 14.308 12.669 13.520 76.045 3.788 1.188
33554432 12.586 12.897 13.221 79.405 1.596 2.481
16777216 13.766 12.583 14.176 76.001 3.903 4.750
9) client: 64 max_sectors_kb, default RA. server: 64 max_sectors_kb, RA 2MB
blocksize R R R R(avg, R(std R
(bytes) (s) (s) (s) MB/s) ,MB/s) (IOPS)
67108864 14.454 12.537 15.058 73.509 5.893 1.149
33554432 15.871 14.201 13.846 70.194 4.083 2.194
16777216 14.721 13.346 14.434 72.410 3.104 4.526
10) client: default max_sectors_kb, 2MB RA. server: 64 max_sectors_kb, RA 2MB
blocksize R R R R(avg, R(std R
(bytes) (s) (s) (s) MB/s) ,MB/s) (IOPS)
67108864 13.262 13.308 13.416 76.828 0.371 1.200
33554432 13.915 13.182 13.065 76.551 2.114 2.392
16777216 13.223 14.133 13.317 75.596 2.232 4.725
11) client: 64 max_sectors_kb, 2MB. RA server: 64 max_sectors_kb, RA 2MB
blocksize R R R R(avg, R(std R
(bytes) (s) (s) (s) MB/s) ,MB/s) (IOPS)
67108864 18.277 17.743 17.534 57.380 0.997 0.897
33554432 18.018 17.728 17.343 57.879 0.907 1.809
16777216 17.600 18.466 17.645 57.223 1.253 3.576
With five threads:
5) client: default, server: default
blocksize R R R R(avg, R(std R
(bytes) (s) (s) (s) MB/s) ,MB/s) (IOPS)
67108864 12.915 13.643 12.572 78.598 2.654 1.228
33554432 12.716 12.970 13.283 78.858 1.403 2.464
16777216 14.372 13.282 13.122 75.461 3.002 4.716
6) client: default, server: 64 max_sectors_kb, RA default
blocksize R R R R(avg, R(std R
(bytes) (s) (s) (s) MB/s) ,MB/s) (IOPS)
67108864 13.372 13.205 12.468 78.750 2.421 1.230
33554432 13.489 13.352 12.883 77.363 1.533 2.418
16777216 13.127 12.653 14.252 76.928 3.785 4.808
7) client: default, server: default max_sectors_kb, RA 2MB
blocksize R R R R(avg, R(std R
(bytes) (s) (s) (s) MB/s) ,MB/s) (IOPS)
67108864 13.135 13.031 13.824 76.872 1.994 1.201
33554432 13.079 13.590 13.730 76.076 1.600 2.377
16777216 12.707 12.951 13.805 77.942 2.735 4.871
8) client: default, server: 64 max_sectors_kb, RA 2MB
blocksize R R R R(avg, R(std R
(bytes) (s) (s) (s) MB/s) ,MB/s) (IOPS)
67108864 13.030 12.947 13.538 77.772 1.524 1.215
33554432 12.826 12.973 13.805 77.649 2.482 2.427
16777216 12.751 13.007 12.986 79.295 0.718 4.956
9) client: 64 max_sectors_kb, default RA. server: 64 max_sectors_kb, RA 2MB
blocksize R R R R(avg, R(std R
(bytes) (s) (s) (s) MB/s) ,MB/s) (IOPS)
67108864 13.236 13.349 13.833 76.034 1.445 1.188
33554432 13.481 14.259 13.582 74.389 1.836 2.325
16777216 14.394 13.922 13.943 72.712 1.111 4.545
10) client: default max_sectors_kb, 2MB RA. server: 64 max_sectors_kb, RA 2MB
blocksize R R R R(avg, R(std R
(bytes) (s) (s) (s) MB/s) ,MB/s) (IOPS)
67108864 18.245 18.690 17.342 56.654 1.779 0.885
33554432 17.744 18.122 17.577 57.492 0.731 1.797
16777216 18.280 18.564 17.846 56.186 0.914 3.512
11) client: 64 max_sectors_kb, 2MB. RA server: 64 max_sectors_kb, RA 2MB
blocksize R R R R(avg, R(std R
(bytes) (s) (s) (s) MB/s) ,MB/s) (IOPS)
67108864 15.241 16.894 15.853 64.131 2.705 1.002
33554432 14.858 16.904 15.588 65.064 3.435 2.033
16777216 16.777 15.939 15.034 64.465 2.893 4.029
Ronald.
next prev parent reply other threads:[~2009-07-22 8:44 UTC|newest]
Thread overview: 65+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-29 5:35 [RESEND] [PATCH] readahead:add blk_run_backing_dev Hisashi Hifumi
2009-06-01 0:36 ` Andrew Morton
2009-06-01 1:04 ` Hisashi Hifumi
2009-06-05 15:15 ` Alan D. Brunelle
2009-06-06 14:36 ` KOSAKI Motohiro
2009-06-06 22:45 ` Wu Fengguang
2009-06-18 19:04 ` Andrew Morton
2009-06-20 3:55 ` Wu Fengguang
2009-06-20 12:29 ` Vladislav Bolkhovitin
2009-06-29 9:34 ` Wu Fengguang
2009-06-29 10:26 ` Ronald Moesbergen
2009-06-29 10:55 ` Vladislav Bolkhovitin
2009-06-29 12:54 ` Wu Fengguang
2009-06-29 12:58 ` Bart Van Assche
2009-06-29 13:01 ` Wu Fengguang
2009-06-29 13:04 ` Vladislav Bolkhovitin
2009-06-29 13:13 ` Wu Fengguang
2009-06-29 13:28 ` Wu Fengguang
2009-06-29 14:43 ` Ronald Moesbergen
2009-06-29 14:51 ` Wu Fengguang
2009-06-29 14:56 ` Ronald Moesbergen
2009-06-29 15:37 ` Vladislav Bolkhovitin
2009-06-29 14:00 ` Ronald Moesbergen
2009-06-29 14:21 ` Wu Fengguang
2009-06-29 15:01 ` Wu Fengguang
2009-06-29 15:37 ` Vladislav Bolkhovitin
[not found] ` <20090630010414.GB31418@localhost>
[not found] ` <4A49EEF9.6010205@vlnb.net>
[not found] ` <a0272b440907030214l4016422bxbc98fd003bfe1b3d@mail.gmail.com>
[not found] ` <4A4DE3C1.5080307@vlnb.net>
[not found] ` <a0272b440907040819l5289483cp44b37d967440ef73@mail.gmail.com>
2009-07-06 11:12 ` Vladislav Bolkhovitin
2009-07-06 14:37 ` Ronald Moesbergen
2009-07-06 17:48 ` Vladislav Bolkhovitin
2009-07-07 6:49 ` Ronald Moesbergen
[not found] ` <4A5395FD.2040507@vlnb.net>
[not found] ` <a0272b440907080149j3eeeb9bat13f942520db059a8@mail.gmail.com>
2009-07-08 12:40 ` Vladislav Bolkhovitin
2009-07-10 6:32 ` Ronald Moesbergen
2009-07-10 8:43 ` Vladislav Bolkhovitin
2009-07-10 9:27 ` Vladislav Bolkhovitin
2009-07-13 12:12 ` Ronald Moesbergen
2009-07-13 12:36 ` Wu Fengguang
2009-07-13 12:47 ` Ronald Moesbergen
2009-07-13 12:52 ` Wu Fengguang
2009-07-14 18:52 ` Vladislav Bolkhovitin
2009-07-15 7:06 ` Wu Fengguang
2009-07-14 18:52 ` Vladislav Bolkhovitin
2009-07-15 6:30 ` Vladislav Bolkhovitin
2009-07-16 7:32 ` Ronald Moesbergen
2009-07-16 10:36 ` Vladislav Bolkhovitin
2009-07-16 14:54 ` Ronald Moesbergen
2009-07-16 16:03 ` Vladislav Bolkhovitin
2009-07-17 14:15 ` Ronald Moesbergen
2009-07-17 18:23 ` Vladislav Bolkhovitin
2009-07-20 7:20 ` Vladislav Bolkhovitin
2009-07-22 8:44 ` Ronald Moesbergen [this message]
2009-07-27 13:11 ` Vladislav Bolkhovitin
2009-07-28 9:51 ` Ronald Moesbergen
2009-07-28 19:07 ` Vladislav Bolkhovitin
2009-07-29 12:48 ` Ronald Moesbergen
2009-07-31 18:32 ` Vladislav Bolkhovitin
2009-08-03 9:15 ` Ronald Moesbergen
2009-08-03 9:20 ` Vladislav Bolkhovitin
2009-08-03 11:44 ` Ronald Moesbergen
2009-07-15 20:52 ` Kurt Garloff
2009-07-16 10:38 ` Vladislav Bolkhovitin
2009-06-30 10:22 ` Vladislav Bolkhovitin
2009-06-29 10:55 ` Vladislav Bolkhovitin
2009-06-29 13:00 ` Wu Fengguang
2009-09-22 20:58 ` Andrew Morton
-- strict thread matches above, loose matches on Subject: below --
2009-05-22 0:09 [RESEND][PATCH] " Hisashi Hifumi
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