* halting processor in SMT(Hyperthreading) system
@ 2004-02-09 20:15 moseleyt
2004-02-09 20:40 ` Richard B. Johnson
0 siblings, 1 reply; 2+ messages in thread
From: moseleyt @ 2004-02-09 20:15 UTC (permalink / raw)
To: linux-kernel
Hello,
I am doing research involving optimal scheduling for Hyperthreading systems. I
was curious if there was an easy way to arbitrarily halt/wake up a processor
other than the one being run on from schedule().
Thanks
Tipp
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: halting processor in SMT(Hyperthreading) system
2004-02-09 20:15 halting processor in SMT(Hyperthreading) system moseleyt
@ 2004-02-09 20:40 ` Richard B. Johnson
0 siblings, 0 replies; 2+ messages in thread
From: Richard B. Johnson @ 2004-02-09 20:40 UTC (permalink / raw)
To: moseleyt; +Cc: Linux kernel
On Mon, 9 Feb 2004 moseleyt@colorado.edu wrote:
> Hello,
>
> I am doing research involving optimal scheduling for Hyperthreading systems. I
> was curious if there was an easy way to arbitrarily halt/wake up a processor
> other than the one being run on from schedule().
>
> Thanks
>
> Tipp
The processor that executes a hlt instruction is the one
that will be halted. It takes an interrupt to get out of
that state.
Cheers,
Dick Johnson
Penguin : Linux version 2.4.24 on an i686 machine (797.90 BogoMips).
Note 96.31% of all statistics are fiction.
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