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Date: Fri, 27 Jun 2008 13:41:09 +0200 From: Peter Zijlstra <a.p.zijlstra@...llo.nl> To: linux-kernel@...r.kernel.org Cc: Ingo Molnar <mingo@...e.hu>, Srivatsa Vaddagiri <vatsa@...ux.vnet.ibm.com>, Mike Galbraith <efault@....de>, Peter Zijlstra <a.p.zijlstra@...llo.nl> Subject: [PATCH 00/30] SMP-group balancer - take 3 Hi, Another go at SMP fairness for group scheduling. This code needs some serious testing,.. However on my system performance doesn't tank as much as it used to. I've ran sysbench and volanomark benchmarks. The machine is a Quad core (Intel Q9450) with 4GB of RAM. Fedora9 - x86_64 sysbench-0.4.8 + postgresql-8.3.3 volanomark-2.5.0.9 + openjdk-1.6.0 I've used cgroup group scheduling. cgroup:/ - means all tasks are in the root group cgroup:/foo - means all tasks are in a subgroup mkdir /cgroup/foo for i in `cat /cgroup/tasks`; do echo $i > /cgroup/foo/tasks done The patches are against: tip/auto-sched-next of a few days ago. --- .25 [root@...ns sysbench-0.4.8]# ./doit-psql-256-60sec 1: transactions: 50514 (841.90 per sec.) 2: transactions: 98745 (1645.73 per sec.) 4: transactions: 192682 (3211.31 per sec.) 8: transactions: 192082 (3201.26 per sec.) 16: transactions: 188891 (3147.95 per sec.) 32: transactions: 182364 (3039.12 per sec.) 64: transactions: 169412 (2822.94 per sec.) 128: transactions: 139505 (2323.95 per sec.) 256: transactions: 131516 (2188.98 per sec.) [root@...ns vmark]# LOOP_CLIENT_COUNT=1000 ./loopclient.sh 2>&1 | grep Average Average throughput = 113350 messages per second Average throughput = 112230 messages per second Average throughput = 113125 messages per second .26-rc cgroup:/ [root@...ns sysbench-0.4.8]# ./doit-psql-256-60sec 1: transactions: 50553 (842.54 per sec.) 2: transactions: 98625 (1643.74 per sec.) 4: transactions: 191351 (3189.12 per sec.) 8: transactions: 193525 (3225.32 per sec.) 16: transactions: 190516 (3175.10 per sec.) 32: transactions: 186914 (3114.96 per sec.) 64: transactions: 178940 (2981.78 per sec.) 128: transactions: 156430 (2606.00 per sec.) 256: transactions: 134929 (2246.63 per sec.) [root@...ns vmark]# LOOP_CLIENT_COUNT=1000 ./loopclient.sh 2>&1 | grep Average Average throughput = 124089 messages per second Average throughput = 121962 messages per second Average throughput = 121223 messages per second cgroup:/foo [root@...ns sysbench-0.4.8]# ./doit-psql-256-60sec 1: transactions: 50246 (837.43 per sec.) 2: transactions: 97466 (1624.41 per sec.) 4: transactions: 179609 (2993.43 per sec.) 8: transactions: 190931 (3182.07 per sec.) 16: transactions: 189882 (3164.50 per sec.) 32: transactions: 184649 (3077.14 per sec.) 64: transactions: 178200 (2969.46 per sec.) 128: transactions: 158835 (2646.14 per sec.) 256: transactions: 142100 (2366.51 per sec.) [root@...ns vmark]# LOOP_CLIENT_COUNT=1000 ./loopclient.sh 2>&1 | grep Average Average throughput = 117789 messages per second Average throughput = 118154 messages per second Average throughput = 118945 messages per second .26-rc-smp-group cgroup:/ [root@...ns sysbench-0.4.8]# ./doit-psql-256-60sec 1: transactions: 50137 (835.61 per sec.) 2: transactions: 97406 (1623.41 per sec.) 4: transactions: 170755 (2845.88 per sec.) 8: transactions: 187406 (3123.35 per sec.) 16: transactions: 186865 (3114.18 per sec.) 32: transactions: 183559 (3059.03 per sec.) 64: transactions: 176834 (2946.70 per sec.) 128: transactions: 158882 (2647.04 per sec.) 256: transactions: 145081 (2415.81 per sec.) [root@...ns vmark]# LOOP_CLIENT_COUNT=1000 ./loopclient.sh 2>&1 | grep Average Average throughput = 121499 messages per second Average throughput = 120181 messages per second Average throughput = 119775 messages per second cgroup:/foo [root@...ns sysbench-0.4.8]# ./doit-psql-256-60sec 1: transactions: 49564 (826.06 per sec.) 2: transactions: 96642 (1610.67 per sec.) 4: transactions: 183081 (3051.29 per sec.) 8: transactions: 187553 (3125.79 per sec.) 16: transactions: 185435 (3090.45 per sec.) 32: transactions: 182314 (3038.25 per sec.) 64: transactions: 174527 (2908.22 per sec.) 128: transactions: 159321 (2654.24 per sec.) 256: transactions: 140167 (2333.82 per sec.) [root@...ns vmark]# LOOP_CLIENT_COUNT=1000 ./loopclient.sh 2>&1 | grep Average Average throughput = 130208 messages per second Average throughput = 129086 messages per second Average throughput = 129362 messages per second -- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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