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Date: Mon, 18 Jun 2012 14:28:08 +0800 From: Chen <hi3766691@...il.com> To: Vikram Dhillon <opensolarisdev@...il.com> Cc: Mike Galbraith <efault@....de>, linux-kernel@...r.kernel.org Subject: Re: [PATCH][ANNOUNCE]RIFS-ES Scheduling V1 release. On Mon, Jun 18, 2012 at 11:01 AM, Vikram Dhillon <opensolarisdev@...il.com> wrote: > On Sun, Jun 17, 2012 at 6:24 PM, Chen <hi3766691@...il.com> wrote: >> Sorry for my fault. >> The patch has build issue and I post the new one. > > Hi Chen, > > It is always very interesting to see new scheduler designs however can > you shows us some benchmarks? How does this compare to CFS currently? > Also how well does it scale beyond desktops? > > - Vikram Here is the benchmark result(Latency) for RIFS-ES and CFS(I have done them with computer and I am posting them with my Android phone now) RIFS-ES ======================================== [root@...alhost admin]# latt -c1 sleep 10 Parameters: min_wait=100ms, max_wait=500ms, clients=1 Entries logged: 27 Wakeup averages ------------------------------------- Max 25 usec Avg 10 usec Stdev 3 usec Stdev mean 1 usec Work averages ------------------------------------- Max 20265 usec Avg 20100 usec Stdev 82 usec Stdev mean 16 usec [root@...alhost admin]# latt -c2 sleep 10 Parameters: min_wait=100ms, max_wait=500ms, clients=2 Entries logged: 54 Wakeup averages ------------------------------------- Max 824 usec Avg 30 usec Stdev 117 usec Stdev mean 16 usec Work averages ------------------------------------- Max 21472 usec Avg 20486 usec Stdev 190 usec Stdev mean 26 usec [root@...alhost admin]# latt -c4 sleep 10 Parameters: min_wait=100ms, max_wait=500ms, clients=4 Entries logged: 104 Wakeup averages ------------------------------------- Max 20423 usec Avg 2343 usec Stdev 3810 usec Stdev mean 374 usec Work averages ------------------------------------- Max 41037 usec Avg 36096 usec Stdev 4247 usec Stdev mean 416 usec [root@...alhost admin]# latt -c8 sleep 10 Parameters: min_wait=100ms, max_wait=500ms, clients=8 Entries logged: 184 Wakeup averages ------------------------------------- Max 71284 usec Avg 6112 usec Stdev 9640 usec Stdev mean 711 usec Work averages ------------------------------------- Max 83043 usec Avg 68615 usec Stdev 10615 usec Stdev mean 783 usec [root@...alhost admin]# latt -c16 sleep 10 Parameters: min_wait=100ms, max_wait=500ms, clients=16 Entries logged: 320 Wakeup averages ------------------------------------- Max 35669 usec Avg 9690 usec Stdev 8961 usec Stdev mean 501 usec Work averages ------------------------------------- Max 166790 usec Avg 136161 usec Stdev 30660 usec Stdev mean 1714 usec RIFS-ES: Total result for wake up average latency: -c1: Avg 10 usec -c2: Avg 30 usec -c4: Avg 2343 usec -c8: Avg 6112 usec -c16: Avg 9690 usec CFS ======================================== [root@...alhost ~]$ latt -c1 sleep 10 Parameters: min_wait=100ms, max_wait=500ms, clients=1 Entries logged: 27 Wakeup averages ------------------------------------- Max 40 usec Avg 21 usec Stdev 8 usec Stdev mean 2 usec Work averages ------------------------------------- Max 20648 usec Avg 20262 usec Stdev 97 usec Stdev mean 19 usec [root@...alhost ~]$ latt -c2 sleep 10 Parameters: min_wait=100ms, max_wait=500ms, clients=2 Entries logged: 54 Wakeup averages ------------------------------------- Max 45 usec Avg 19 usec Stdev 10 usec Stdev mean 1 usec Work averages ------------------------------------- Max 21549 usec Avg 20495 usec Stdev 320 usec Stdev mean 43 usec [root@...alhost ~]$ latt -c4 sleep 10 Parameters: min_wait=100ms, max_wait=500ms, clients=4 Entries logged: 104 Wakeup averages ------------------------------------- Max 20430 usec Avg 4900 usec Stdev 6274 usec Stdev mean 615 usec Work averages ------------------------------------- Max 50538 usec Avg 30564 usec Stdev 6492 usec Stdev mean 637 usec [root@...alhost ~]$ latt -c8 sleep 10 Parameters: min_wait=100ms, max_wait=500ms, clients=8 Entries logged: 184 Wakeup averages ------------------------------------- Max 38195 usec Avg 8068 usec Stdev 8132 usec Stdev mean 599 usec Work averages ------------------------------------- Max 83525 usec Avg 67597 usec Stdev 10037 usec Stdev mean 740 usec [root@...alhost ~]$ latt -c16 sleep 10 Parameters: min_wait=100ms, max_wait=500ms, clients=16 Entries logged: 320 Wakeup averages ------------------------------------- Max 83711 usec Avg 17497 usec Stdev 21219 usec Stdev mean 1186 usec Work averages ------------------------------------- Max 166547 usec Avg 119376 usec Stdev 31758 usec Stdev mean 1775 usec CFS: Total result for wake up average latency: -c1: Avg 21 usec -c2: Avg 19 usec -c4: Avg 4900 usec -c8: Avg 8068 usec -c16: Avg 17497 usec -- 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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