Messages in this thread | | | Date | Fri, 25 Jan 2002 15:07:13 -0800 | From | "Martin J. Bligh" <> | Subject | Performance of Ingo's O(1) scheduler on 8 way NUMA-Q |
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Measuring the performace of a parallelized kernel compile with warm caches on a 8 way NUMA-Q box. Highmem support is turned OFF so I'm only using the first 1Gb or so of RAM (it's much faster without HIGHMEM).
prepare: make -j16 dep; make -j16 bzImage; make mrproper; make -j16 dep;
measured: time make -j16 bzImage
2.4.18-pre7
330.06user 99.92system 1:00.35elapsed 712%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (411135major+486026minor)pagefaults 0swaps
2.4.18-pre7 with J6 scheduler
307.19user 88.54system 0:57.63elapsed 686%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (399255major+484472minor)pagefaults 0swaps
Seems to give a significant improvement, not only giving a shorter elapsed time, but also lower CPU load.
Martin.
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