Messages in this thread | | | Date | Wed, 21 Dec 2005 14:20:48 +0100 | From | Folkert van Heusden <> | Subject | Re: [POLL] SLAB : Are the 32 and 192 bytes caches really usefull on x86_64 machines ? |
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> > (x86_64 : PAGE_SIZE = 4096, L1_CACHE_BYTES = 64) > > On my machines, I can say that the 32 and 192 sizes could be avoided in favor > > in spending less cpu cycles in __find_general_cachep() > > Could some of you post the result of the following command on your machines : > > # grep "size-" /proc/slabinfo |grep -v DMA|cut -c1-40 > size-131072 0 0 131072 > size-65536 3 3 65536 > size-32768 0 0 32768 > size-16384 3 3 16384 > size-8192 28 28 8192 > size-4096 184 184 4096 > size-2048 272 272 2048 > size-1024 300 300 1024 > size-512 275 376 512 > size-256 717 720 256 > size-192 1120 1220 192 > size-64 7720 8568 64 > size-128 45019 65830 128 > size-32 1627 3333 32
size-131072 0 0 131072 size-65536 0 0 65536 size-32768 20 20 32768 size-16384 8 9 16384 size-8192 37 38 8192 size-4096 269 269 4096 size-2048 793 910 2048 size-1024 564 608 1024 size-512 702 856 512 size-256 1485 4005 256 size-128 1209 1350 128 size-64 2858 3363 64 size-32 1538 2714 64 Intel(R) Xeon(TM) MP CPU 3.00GHz address sizes : 40 bits physical, 48 bits virtual
Folkert van Heusden
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