On Tue, 26 Feb 2008, David Xu wrote: > Jeff Roberson wrote: > >> I think our identcpu.c already detects this information. That's what I'm >> using. Although I assume that all cpus are identical and fall back on a >> flat topology if this isn't the case. I'd like to start including more >> cache information though. >> >> Jeff > > The patch does not assume all cpus are identical, in theory, one can have a > machine with one cpu is 4-core and another is 2-core cpu. > only one place needs to be fixed in the patch,the global variable > cpu_feature, which is easy to fix for the patch. cpuid_count(4, cache_level, regs); if ((regs[0] & 0x1f) == 0) break; threads_per_cache = ((regs[0] & 0x3ffc000) >> 14) + 1; Does this work on all intel/amd cpus? Thanks, Jeff > > David Xu > > _______________________________________________ > freebsd-current_at_freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe_at_freebsd.org" >Received on Tue Feb 26 2008 - 06:49:24 UTC
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