Re: [PATCH] sched,numa: document and fix numa_preferred_nid setting

Srikar Dronamraju
2015-06-22T16:48:39Z

Updated autonumabenchmark numbers

Plain 4.1.0-rc7-tip (i)
Testcase: Min Max Avg StdDev
elapsed_numa01: 858.85 949.18 915.64 33.06
elapsed_numa02: 23.09 29.89 26.43 2.18
Testcase: Min Max Avg StdDev
system_numa01: 1516.72 1855.08 1686.24 113.95
system_numa02: 63.69 79.06 70.35 5.87
Testcase: Min Max Avg StdDev
user_numa01: 73284.76 80818.21 78060.88 2773.60
user_numa02: 1690.18 2071.07 1821.64 140.25
Testcase: Min Max Avg StdDev
total_numa01: 74801.50 82572.60 79747.12 2875.61
total_numa02: 1753.87 2142.77 1891.99 143.59

tip + Rik's ++ (ii)
Testcase: Min Max Avg StdDev %Change
elapsed_numa01: 630.60 860.06 760.07 74.33 18.09%
elapsed_numa02: 21.92 34.42 27.72 4.49 -3.75%
Testcase: Min Max Avg StdDev %Change
system_numa01: 474.31 1379.49 870.12 296.35 59.16%
system_numa02: 63.74 120.25 86.69 20.69 -13.59%
Testcase: Min Max Avg StdDev %Change
user_numa01: 53004.03 68125.84 61697.01 5011.38 24.02%
user_numa02: 1650.82 2278.71 1941.26 224.59 -5.25%
Testcase: Min Max Avg StdDev %Change
total_numa01: 53478.30 69505.30 62567.12 5288.18 24.72%
total_numa02: 1714.56 2398.96 2027.95 238.08 -5.67%

tip + Srikar's ++ (iii)
Testcase: Min Max Avg StdDev %Change
elapsed_numa01: 690.74 919.49 782.67 78.51 14.46%
elapsed_numa02: 21.78 29.57 26.02 2.65 1.39%
Testcase: Min Max Avg StdDev %Change
system_numa01: 659.12 1041.19 870.15 143.13 78.38%
system_numa02: 52.20 78.73 64.18 11.28 7.84%
Testcase: Min Max Avg StdDev %Change
user_numa01: 56410.39 71492.31 62514.78 5444.90 21.75%
user_numa02: 1594.27 1934.40 1754.37 126.41 3.48%
Testcase: Min Max Avg StdDev %Change
total_numa01: 57069.50 72509.90 63384.94 5567.71 22.57%
total_numa02: 1647.85 2010.87 1818.55 136.88 3.65%

tip + Srikar's + Modified Rik's patch (iv)
Testcase: Min Max Avg StdDev %Change
elapsed_numa01: 674.72 815.10 746.50 51.81 20.75%
elapsed_numa02: 21.02 34.57 27.58 4.63 -3.33%
Testcase: Min Max Avg StdDev %Change
system_numa01: 726.19 1099.16 879.36 141.02 73.41%
system_numa02: 33.99 72.99 58.89 14.26 15.70%
Testcase: Min Max Avg StdDev %Change
user_numa01: 56350.75 67318.49 61998.95 4696.34 23.86%
user_numa02: 1518.66 2301.80 1882.96 261.18 -2.66%
Testcase: Min Max Avg StdDev %Change
total_numa01: 57076.90 68417.70 62878.32 4826.93 24.66%
total_numa02: 1552.65 2374.79 1941.85 274.28 -2.10%

Plain 4.1.0-rc7-tip (i)
tip + Rik's ++ (ii)
tip + Srikar's ++ (iii)
tip + Srikar's + Modified Rik's patch (iv)

(i) = Plain 4.1.0-rc7-tip = tip = 4.1.0-rc7 (b7ca96b)

(ii) = tip + only Rik's suggested patches = (i) + Rik's fix numa_preferred_nid setting
+ Srikar's numa hotness + correct nid for evaluating task weight

(iii) = tip + Srikar's ++ (iii) = (i) + Srikar's numa hotness + correct nid for evaluating
task weight + numa_has_capacity fix + always update preferred node

(iv) = tip + Srikar's ++ (iv) = (i) + Srikar's numa hotness + correct nid for evaluating
task weight + numa_has_capacity fix + Rik's modified patch.
(Rik's modified patch == I removed node_isset check before setting
nid as the preferred node)

--
Thanks and Regards
Srikar Dronamraju

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