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 <[email protected]> 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
