On Sat, 14 Apr 2001, Rik van Riel wrote:
>
> Also, have you managed to find a real difference with this?
It actually makes a noticeable difference on lmbench, so I think adam is
100% right.
> If it turns out to be beneficial to run the child first (you
> can measure this), why not leave everything the same as it is
> now but have do_fork() "switch threads" internally ?
Probably doesn't much matter. We've invalidated the TLB anyway due to the
page table copy, so the cost of switching the MM is not all that
noticeable.
Linus
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This archive was generated by hypermail 2b29 : Sun Apr 15 2001 - 21:00:22 EST