Messages in this thread | | | Date | Thu, 16 Jan 2014 11:07:44 +0800 | From | kernel test robot <> | Subject | [slub shrink] 0f6934bf16: +191.9% vmstat.system.cs |
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Hi Dave,
We noticed increased context switches in the will-it-scale/read2 test case. Test box is a 4S IVB-EX server. The other change is increased oltp.request_latency_max_ms in a NHM desktop.
commit 0f6934bf1695682e7ced973f67d57ab9e124c325 Author: Dave Hansen <dave.hansen@intel.com> AuthorDate: Mon Jan 13 07:40:46 2014 -0800
for Fenguang to test
git tree branch is
https://github.com/hansendc/linux.git slub-reshrink-for-Fengguang-20140113
% compare -ab 0f6934bf1695682e7ced973f67d57ab9e124c325~ 0f6934bf1695682e7ced973f67d57ab9e124c325 9a0bb2966efbf30 0f6934bf1695682e7ced973f6 --------------- ------------------------- 15.26 ~ 3% +19.7% 18.26 ~ 4% nhm-white/sysbench/oltp/600s-100%-1000000 15.26 +19.7% 18.26 TOTAL oltp.request_latency_max_ms
9a0bb2966efbf30 0f6934bf1695682e7ced973f6 --------------- ------------------------- 8235933 ~ 2% +80.6% 14872911 ~ 3% lkp-sbx04/micro/will-it-scale/read2 8235933 +80.6% 14872911 TOTAL interrupts.RES
9a0bb2966efbf30 0f6934bf1695682e7ced973f6 --------------- ------------------------- 161531 ~ 7% +191.9% 471544 ~ 9% lkp-sbx04/micro/will-it-scale/read2 161531 +191.9% 471544 TOTAL vmstat.system.cs
9a0bb2966efbf30 0f6934bf1695682e7ced973f6 --------------- ------------------------- 32943 ~ 1% +71.8% 56599 ~ 3% lkp-sbx04/micro/will-it-scale/read2 32943 +71.8% 56599 TOTAL vmstat.system.in
vmstat.system.cs
600000 ++---------O------------------------------------------------------+ 550000 ++ O | | O O O O O O O | 500000 O+ O O | 450000 ++ O O O O O | 400000 ++ O O | 350000 ++ | | | 300000 ++ | 250000 ++ | 200000 ++ .* .*.. | 150000 *+. .*. : *..*..*..*..*..*.. .*. .*.. .*..*..*.*.. .*..* | *. : .. * *. *. *. | 100000 ++ * | 50000 ++----------------------------------------------------------------+
Thanks, Fengguang
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