On Wed, 2004-10-13 at 17:47, John Franklin wrote: > One of the big issues with HT is that it looks like SMP to HT-unaware > kernels. The difference between SMP and HT is the shared resources on > the chip. When moving a process to a second CPU (core), an HT-unaware > kernel may blow the CPU cache, move the process to the second core > thinking it's a physically separate CPU, and refill the CPU cache. An > HT-aware kernel will move the process w/o blowing the cache. >
Would it therefore be prudent to turn off HT if your application is memory-intensive? Is it even possible to turn off HT (e.g. BIOS setting)? If I can turn it off, I guess I could try to do some benchmarks with my particular application... I'm using kernel 2.4.21 with Red Hat's modifications, on CentOS 3.3. Jeremy -- /---------------------------------------------------------------------\ | Jeremy Portzer [EMAIL PROTECTED] trilug.org/~jeremy | | GPG Fingerprint: 712D 77C7 AB2D 2130 989F E135 6F9F F7BC CC1A 7B92 | \---------------------------------------------------------------------/
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