Hi Rik I tested new hackbench on rvr split LRU patch.
new hackbench URL is http://people.redhat.com/mingo/cfs-scheduler/tools/hackbench.c method of test (1) $ ./hackbench 150 process 1000 (2) # sync; echo 3 > /proc/sys/vm/drop_caches $ dd if=tmp10G of=/dev/null $ ./hackbench 150 process 1000 test machine: CPU: x86_64 1.86GHz x2 memory: 6GB result: 2.6.24-rc6-mm1 +rvr-split-lru ratio (small is faster) ------------------------------------------------------------------- (1) 364.981 359.386 98.47% (2) 364.461 387.471 106.31% more detail: 1. /usr/bin/time command output vanilla 2.6.24-rc6-mm1 33.74user 703.10system 6:09.56elapsed 199%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+372467minor)pagefaults 0swaps 2.6.24-rc6-mm1 + rvr-split-lru 36.22user 731.30system 6:35.16elapsed 194%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (804major+389524minor)pagefaults 0swaps It seems increase page fault. 2. after test (2), cat /proc/meminfo vanilla 2.6.24-rc6-mm1 MemTotal: 5931808 kB MemFree: 1751632 kB Buffers: 4360 kB Cached: 3930020 kB SwapCached: 0 kB Active: 46396 kB Inactive: 3924108 kB SwapTotal: 20972848 kB SwapFree: 20972720 kB Dirty: 0 kB Writeback: 0 kB AnonPages: 36140 kB Mapped: 10104 kB Slab: 160020 kB SReclaimable: 3460 kB SUnreclaim: 156560 kB PageTables: 3712 kB NFS_Unstable: 0 kB Bounce: 0 kB CommitLimit: 23938752 kB Committed_AS: 78940 kB VmallocTotal: 34359738367 kB VmallocUsed: 57220 kB VmallocChunk: 34359680999 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB 2.6.24-rc6-mm1 + rvr-split-lru MemTotal: 5931356 kB MemFree: 1771800 kB Buffers: 2776 kB Cached: 3914800 kB SwapCached: 7940 kB Active(anon): 21868 kB Inactive(anon): 6560 kB Active(file): 1722888 kB Inactive(file): 2192128 kB Noreclaim: 3472 kB Mlocked: 3724 kB SwapTotal: 20972848 kB SwapFree: 20935032 kB Dirty: 8 kB Writeback: 0 kB AnonPages: 23912 kB Mapped: 9500 kB Slab: 162188 kB SReclaimable: 5544 kB SUnreclaim: 156644 kB PageTables: 4444 kB NFS_Unstable: 0 kB Bounce: 0 kB CommitLimit: 23938524 kB Committed_AS: 106816 kB VmallocTotal: 34359738367 kB VmallocUsed: 57220 kB VmallocChunk: 34359680999 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB It seems used once memory incorrect activation increased. What do you think it? - kosaki -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/