| To: | Mel Gorman <mgorman@xxxxxxx> |
|---|---|
| Subject: | Re: [PATCH 4/4] mm: numa: Slow PTE scan rate if migration failures occur |
| From: | Ingo Molnar <mingo@xxxxxxxxxx> |
| Date: | Sun, 8 Mar 2015 10:41:29 +0100 |
| Cc: | Dave Chinner <david@xxxxxxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>, Aneesh Kumar <aneesh.kumar@xxxxxxxxxxxxxxxxxx>, Linux Kernel Mailing List <linux-kernel@xxxxxxxxxxxxxxx>, Linux-MM <linux-mm@xxxxxxxxx>, xfs@xxxxxxxxxxx, linuxppc-dev@xxxxxxxxxxxxxxxx |
| Delivered-to: | xfs@xxxxxxxxxxx |
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| In-reply-to: | <1425741651-29152-5-git-send-email-mgorman@xxxxxxx> |
| References: | <1425741651-29152-1-git-send-email-mgorman@xxxxxxx> <1425741651-29152-5-git-send-email-mgorman@xxxxxxx> |
| Sender: | Ingo Molnar <mingo.kernel.org@xxxxxxxxx> |
| User-agent: | Mutt/1.5.23 (2014-03-12) |
* Mel Gorman <mgorman@xxxxxxx> wrote:
> xfsrepair
> 4.0.0-rc1 4.0.0-rc1
> 3.19.0
> vanilla slowscan-v2
> vanilla
> Min real-fsmark 1157.41 ( 0.00%) 1150.38 ( 0.61%)
> 1164.44 ( -0.61%)
> Min syst-fsmark 3998.06 ( 0.00%) 3988.42 ( 0.24%)
> 4016.12 ( -0.45%)
> Min real-xfsrepair 497.64 ( 0.00%) 456.87 ( 8.19%)
> 442.64 ( 11.05%)
> Min syst-xfsrepair 500.61 ( 0.00%) 263.41 ( 47.38%)
> 194.97 ( 61.05%)
> Amean real-fsmark 1166.63 ( 0.00%) 1155.97 ( 0.91%)
> 1166.28 ( 0.03%)
> Amean syst-fsmark 4020.94 ( 0.00%) 4004.19 ( 0.42%)
> 4025.87 ( -0.12%)
> Amean real-xfsrepair 507.85 ( 0.00%) 459.58 ( 9.50%)
> 447.66 ( 11.85%)
> Amean syst-xfsrepair 519.88 ( 0.00%) 281.63 ( 45.83%)
> 202.93 ( 60.97%)
> Stddev real-fsmark 6.55 ( 0.00%) 3.97 ( 39.30%)
> 1.44 ( 77.98%)
> Stddev syst-fsmark 16.22 ( 0.00%) 15.09 ( 6.96%)
> 9.76 ( 39.86%)
> Stddev real-xfsrepair 11.17 ( 0.00%) 3.41 ( 69.43%)
> 5.57 ( 50.17%)
> Stddev syst-xfsrepair 13.98 ( 0.00%) 19.94 (-42.60%)
> 5.69 ( 59.31%)
> CoeffVar real-fsmark 0.56 ( 0.00%) 0.34 ( 38.74%)
> 0.12 ( 77.97%)
> CoeffVar syst-fsmark 0.40 ( 0.00%) 0.38 ( 6.57%)
> 0.24 ( 39.93%)
> CoeffVar real-xfsrepair 2.20 ( 0.00%) 0.74 ( 66.22%)
> 1.24 ( 43.47%)
> CoeffVar syst-xfsrepair 2.69 ( 0.00%) 7.08 (-163.23%)
> 2.80 ( -4.23%)
> Max real-fsmark 1171.98 ( 0.00%) 1159.25 ( 1.09%)
> 1167.96 ( 0.34%)
> Max syst-fsmark 4033.84 ( 0.00%) 4024.53 ( 0.23%)
> 4039.20 ( -0.13%)
> Max real-xfsrepair 523.40 ( 0.00%) 464.40 ( 11.27%)
> 455.42 ( 12.99%)
> Max syst-xfsrepair 533.37 ( 0.00%) 309.38 ( 42.00%)
> 207.94 ( 61.01%)
Btw., I think it would be nice if these numbers listed v3.19
performance in the first column, to make it clear at a glance
how much regression we still have?
Thanks,
Ingo
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