hi, 3.1 : is fine 3.2 : bad performance <---- bug since 3.2 3.3.x : bad performance git-tree : bad performance
OS: Fedora 17 kernel: 3.9.4-100 x86_64 machine test done with ebizzy-0.3 <http://ebizzy.sf.net> code: http://sf.net/projects/ebizzy/files/latest/download?source=files jemalloc-3.3.1: $ LD_PRELOAD=/usr/lib64/libjemalloc.so.1 ./ebizzy -s 131072 47525 records/s real 10.00 s user 5.99 s sys 13.54 s ebizzy shows very low records. $ vmstat 1 procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu---- r b swpd free buff cache si so bi bo in cs us sy id wa 4 0 0 5868732 106904 1055100 0 0 0 0 18170 1356 13 25 62 0 4 0 0 5868804 106904 1055188 0 0 0 0 50193 1538 34 67 0 0 4 0 0 5868804 106904 1055188 0 0 0 0 49276 1721 31 69 0 0 5 0 0 5868772 106904 1055164 0 0 0 0 50630 1502 33 67 0 0 4 0 0 5868804 106904 1055164 0 0 0 0 50525 1461 32 68 0 0 4 0 0 5868804 106904 1055108 0 0 0 0 50602 1526 32 68 0 0 4 0 0 5868796 106904 1055108 0 0 0 8 50151 1519 33 67 0 0 4 0 0 5868772 106904 1055116 0 0 0 0 50355 1497 30 70 0 0 4 0 0 5868804 106904 1055116 0 0 0 0 50216 1494 29 71 0 0 4 0 0 5868804 106904 1055116 0 0 0 0 50395 1522 30 70 0 0 ^^^^^ ^^ system time is too high, and also system interrupts. Same test done with jemalloc-3.1.0 (glibc-2.15 and tcmalloc-2.0 get similar results): $ LD_PRELOAD=/home/xose/bajar/j/3.1/lib64/libjemalloc.so.1 ./ebizzy -s 131072 335568 records/s real 10.00 s user 19.55 s sys 0.01 s $ vmstat 1 procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu---- r b swpd free buff cache si so bi bo in cs us sy id wa 4 0 0 5844152 107644 1067828 0 0 0 0 2579 1862 100 0 0 0 4 0 0 5839812 107644 1071980 0 0 0 0 2558 1676 99 1 0 0 4 0 0 5839564 107652 1071940 0 0 0 12 2574 1669 100 1 0 0 4 0 0 5843292 107652 1067740 0 0 0 0 2548 1651 99 1 0 0 4 0 0 5839348 107652 1071900 0 0 0 0 2532 1637 100 1 0 0 4 0 0 5839100 107652 1071868 0 0 0 0 2549 1652 100 1 0 0 4 0 0 5842500 107652 1067740 0 0 0 0 2553 1648 99 1 0 0 4 0 0 5842284 107652 1067772 0 0 0 0 2562 1670 99 1 0 0 4 0 0 5838324 107652 1071900 0 0 0 0 2556 1759 99 1 0 0 0 0 0 5852096 107652 1071868 0 0 0 0 2583 1904 97 1 2 0 -thanks- _______________________________________________ jemalloc-discuss mailing list [email protected] http://www.canonware.com/mailman/listinfo/jemalloc-discuss
