Re: [HACKERS] tweaking MemSet() performance

[Ashley Cambrell]

Andrew Sullivan wrote:

On Thu, Aug 29, 2002 at 01:27:41AM -0400, Neil Conway wrote:
  

Also, if anyone would like to contribute the results of doing the
benchmark on their particular system, that might provide some useful
additional data points.
    

Linux 2.4.18 (preempt) gcc 2.95.4 Dual Althon 1600XP 1Gb DDR

memset() *64 2.999s
MemSet() *64 3.640s

memset() *128 4.211s
MemSet() *128 5.933s

memset() *256 6.624s
MemSet()*256 14.889s

memset() *512 11.182s
MemSet()*512 28.583s

memset() *1024 20.288s
MemSet()*1024 55.853s

memset() *2048 38.513s
MemSet()*2048 1m50.555s

memset()*4096 1m15.010s
MemSet()*4096 3m40.381s

Linux 2.4.16 gcc 2.95.4 Dual Celeron 400 512Mb PC66

memset() *64 15.618s
MemSet() *64 12.864s

memset() *128 24.524s
MemSet() *128 21.852s

memset() *256 53.963s
MemSet() *256 52.012s

memset() *512 1m31.232s
MemSet() *512 1m39.445s

memset() *1024 2m44.609s
MemSet() *1024  3m14.567s

memset() *2048 5m12.630s
MemSet() *2048  6m24.916s

memset() *4096 10m8.183s
MemSet() *4096 12m43.830s

Ashley Cambrell