Messages in this thread | | | Date | Sat, 13 Mar 2004 11:55:59 +1100 | From | Nick Piggin <> | Subject | [BENCHMARKS] 2.6.4 vs 2.6.4-mm1 |
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These are some benchmarks on a 16-way (4x4) NUMAQ. Basically measures the scheduler patches with a couple of meaningless but very scheduler intensive benchmarks.
hackbench: The number in () is a projection for the time 1000 would take, assuming a linear scaling. It is probably better shown on a graph, but you can see a non linear element in 2.6.4 that is basically absent in 2.6.4-mm1.
2.6.4 2.6.4-mm1 50 19.4 (388) 15.5 (310) 100 39.0 (390) 34.5 (345) 150 59.0 (393) 48.3 (322) 200 82.9 (414) 68.9 (344) 250 114.8 (459) 90.2 (360) 300 145.4 (484) 106.3 (354) 350 178.1 (508) 122.1 (348) 400 218.8 (547) 135.0 (337) 450 237.8 (528) 163.9 (364) 500 262.0 (524) 181.7 (363)
volanomark (MPS): This one starts getting huge mmap_sem contention at 150+ coming from futexes. Don't know what is taking the mmap_sem for writing. Maybe just brk or mmap.
2.6.4 2.6.4-mm1 15 5850 6221 30 5682 5852 45 4736 5700 60 2857 5622 75 1024 4840 90 1832 5191 105 491 5036 120 1591 4228 135 393 4986 150 1056 1586
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