Messages in this thread | | | Subject | Re: Accelerating user mode linux | From | Alan Cox <> | Date | 02 Aug 2002 14:28:07 +0100 |
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On Fri, 2002-08-02 at 12:34, Richard Zidlicky wrote: > I have once ported Basilisk to work native on linux-m68k. It works > *slow* so I looked what the problem is - the signal delivery in > Linux is exorbitantly slow. Eg an SIGILL delivery costs ~ 1650 cycles > on a 68060, compared to that sigreturn and getpid are 200-250 and > sched_yield with context switch around 400.
The numbers look very different on a real processor. Signal delivery is indeed not stunningly fast but relative to a context switch its very low indeed.
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