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Message-ID: <20130716151006.GA13058@linux.vnet.ibm.com> Date: Tue, 16 Jul 2013 20:40:06 +0530 From: Srikar Dronamraju <srikar@...ux.vnet.ibm.com> To: Mel Gorman <mgorman@...e.de> Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>, Ingo Molnar <mingo@...nel.org>, Andrea Arcangeli <aarcange@...hat.com>, Johannes Weiner <hannes@...xchg.org>, Linux-MM <linux-mm@...ck.org>, LKML <linux-kernel@...r.kernel.org> Subject: Re: [PATCH 0/18] Basic scheduler support for automatic NUMA balancing V5 Summary: Seeing improvement on a 2 node when running autonumabenchmark . But seeing regression for specjbb for the same box. Also seeing huge regression when running autonumabenchmark both on 4 node and 8 node box. Below is the autonuma benchmark results on a 2 node machine. Autonuma benchmark results. mainline v3.9: (Ht enabled) Testcase: Min Max Avg StdDev numa01: 220.12 246.96 239.18 9.69 numa02: 41.85 43.02 42.43 0.47 v3.9 + Mel's v5 patches:A (Ht enabled) Testcase: Min Max Avg StdDev %Change numa01: 239.52 242.99 241.61 1.26 -1.00% numa02: 37.94 38.12 38.05 0.06 11.49% mainline v3.9: Testcase: Min Max Avg StdDev numa01: 118.72 121.04 120.23 0.83 numa02: 36.64 37.56 36.99 0.34 v3.9 + Mel's v5 patches: Testcase: Min Max Avg StdDev %Change numa01: 111.34 122.28 118.61 3.77 1.32% numa02: 36.23 37.27 36.55 0.37 1.18% Here are results of specjbb run on a 2 node machine. Specjbb was run on 3 vms. In the fit case, one vm was big to fit one node size. In the no-fit case, one vm was bigger than the node size. Specjbb results. --------------------------------------------------------------------------------------- | | vm| nofit| fit| | | vm| noksm| ksm| noksm| ksm| | | vm| nothp| thp| nothp| thp| nothp| thp| nothp| thp| --------------------------------------------------------------------------------------- | mainline_v39+ | vm_1| 136056| 189423| 135359| 186722| 136983| 191669| 136728| 184253| | mainline_v39+ | vm_2| 66041| 84779| 64564| 86645| 67426| 84427| 63657| 85043| | mainline_v39+ | vm_3| 67322| 83301| 63731| 85394| 65015| 85156| 63838| 84199| | mel_numa_balan| vm_1| 133170| 177883| 136385| 176716| 140650| 174535| 132811| 190120| | mel_numa_balan| vm_2| 65021| 81707| 62876| 81826| 63635| 84943| 58313| 78997| | mel_numa_balan| vm_3| 61915| 82198| 60106| 81723| 64222| 81123| 59559| 78299| | change % | vm_1| -2.12| -6.09| 0.76| -5.36| 2.68| -8.94| -2.86| 3.18| | change % | vm_2| -1.54| -3.62| -2.61| -5.56| -5.62| 0.61| -8.39| -7.11| | change % | vm_3| -8.03| -1.32| -5.69| -4.30| -1.22| -4.74| -6.70| -7.01| --------------------------------------------------------------------------------------- numactl o/p available: 2 nodes (0-1) node 0 cpus: 0 1 2 3 4 5 12 13 14 15 16 17 node 0 size: 12276 MB node 0 free: 10574 MB node 1 cpus: 6 7 8 9 10 11 18 19 20 21 22 23 node 1 size: 12288 MB node 1 free: 9697 MB node distances: node 0 1 0: 10 21 1: 21 10 Autonuma results on a 4 node machine. KernelVersion: 3.9.0(HT) Testcase: Min Max Avg StdDev numa01: 569.80 624.94 593.12 19.14 numa02: 18.65 21.32 19.69 0.98 KernelVersion: 3.9.0 + Mel's v5 patches(HT) Testcase: Min Max Avg StdDev %Change numa01: 718.83 750.46 740.10 11.42 -19.59% numa02: 20.07 22.36 20.97 0.81 -5.72% KernelVersion: 3.9.0() Testcase: Min Max Avg StdDev numa01: 586.75 628.65 604.15 16.13 numa02: 19.67 20.49 19.93 0.29 KernelVersion: 3.9.0 + Mel's v5 patches Testcase: Min Max Avg StdDev %Change numa01: 741.48 759.37 747.23 6.36 -18.84% numa02: 20.55 22.06 21.21 0.52 -5.80% System x3750 M4 -[8722C1A]- numactl o/p available: 4 nodes (0-3) node 0 cpus: 0 1 2 3 4 5 6 7 32 33 34 35 36 37 38 39 node 0 size: 65468 MB node 0 free: 63069 MB node 1 cpus: 8 9 10 11 12 13 14 15 40 41 42 43 44 45 46 47 node 1 size: 65536 MB node 1 free: 63497 MB node 2 cpus: 16 17 18 19 20 21 22 23 48 49 50 51 52 53 54 55 node 2 size: 65536 MB node 2 free: 63515 MB node 3 cpus: 24 25 26 27 28 29 30 31 56 57 58 59 60 61 62 63 node 3 size: 65536 MB node 3 free: 63659 MB node distances: node 0 1 2 3 0: 10 11 11 12 1: 11 10 12 11 2: 11 12 10 11 3: 12 11 11 10 The results on the 8 node also look similar to 4 node. -- Thanks and Regards Srikar Dronamraju -- 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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