Re: [PATCH] 2.6 workaround for Athlon/Opteron prefetch errata

[Jamie Lokier]

richard.brunner@xxxxxxx wrote:
> Don't worry! I am pretty certain the patch won't impact the 
> performance of the 2.6 kernel on processors from other vendors ;-)

is_prefetch() will slow down programs which depend on lots of SEGV
signals: those garbage collectors which use mprotect and SIGSEGV to
track dirty pages.

I wonder how much it will slow them down.

-- Jamie
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