Re: [PERFORM] size of cache

2005-07-13 Thread Simon Riggs
On Wed, 2005-07-13 at 10:20 +0200, Jean-Max Reymond wrote: > with my application, it seems that size of cache has great effect: > from 512 Kb of L2 cache to 1Mb boost performance with a factor 3 and > 20% again from 1Mb L2 cache to 2Mb L2 cache. Memory request time is the main bottleneck in well t

[PERFORM] size of cache

2005-07-13 Thread Jean-Max Reymond
with my application, it seems that size of cache has great effect: from 512 Kb of L2 cache to 1Mb boost performance with a factor 3 and 20% again from 1Mb L2 cache to 2Mb L2 cache. I don't understand why a 512Kb cache L2 is too small to fit the data's does it exist a tool to trace processor activit