Re: linux threads vs. solaris threads

Larry McVoy (lm@bitmover.com)
Sat, 11 Sep 1999 11:23:11 -0700

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On Sat, Sep 11, 1999 at 03:36:40AM -0700, David S. Miller wrote:
> Date: Sat, 11 Sep 1999 02:50:04 -0700
> From: Larry McVoy <lm@bitmover.com>
>
> Almost all (maybe 100%) modern hardware has context ids in the TLB.
>
> Unfortunately, the cpu with the largest market share, x86, does not.
>
> So if you aren't context switching between threads sharing the same
> address space, the whole TLB is in fact flushed.

So to get the numbers that you want on linux, just change the fork to
clone and away you go - it shares the VM. No flushing.

--- Larry McVoy lm@bitmover.com http://www.bitmover.com/lm

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