interrupt numbers

Terry Tree terry.tree at gmail.com
Wed Apr 12 16:59:16 PDT 2006


I take it everyone else is just as lost as me on how answer this one ?

-Terry

On 4/5/06, Terry Tree <terry.tree at xxxxxxxxx> wrote:
> Anyone know where DragonFly stands in this regard ?
>
> -Terry
>
> From: Paolo Pisati <p.pisati at xxxxxxxxxxxxxx>
> To: current at xxxxxxxxxxx
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> Subject: Interesting data on network interrupt - part II
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> Hi,
>
> i updated my work on interrupt profiling with sone new
> experiments.
>
> In total we have now:
>
> -FreeBSD 4 PIC (no asm part)
> -FreeBSD 7 APIC
> -FreeBSD 7 PIC
> -FreeBSD 7 PREE APIC
> -FreeBSD 7 APIC JHB
>
> Some quick comments:
>
> -PIC is much slower in masking interrupt (7k in PIC vs 3k in APIC)
> -PREE let new thread save less than 500 ticks of 'queue' while
>  preempted threads are often resumed after a lot
> -JHB patch shaved 2.5k ticks in interrupt masking op
>
> For graphs, data and more comments:
>
> http://mercurio.sm.dsi.unimi.it/~pisati/interrupt/
>
> bye
> --
>
> Paolo
>
> "le influenze esterne sono troppe, il mondo reale non e' mica
> quello fatato dei komunisti :-p" - Anonymous Lumbard
>






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