On Wed, Feb 10, 2016 at 1:34 PM, Stefan Ring <stefan...@gmail.com> wrote:
> On Wed, Feb 10, 2016 at 4:44 AM, Noah Misch <n...@leadboat.com> wrote:
>> Killing them was the right decision.  Thank you.  Like all my cfarm batch
>> testing, the processes had setpriority(PRIO_MAX).  Perhaps I/O load remained
>> high enough to ruin things.
>
> Unfortunately, process priority is absolutely worthless on machines
> with hyperthreading. The other day I witnessed someone using all 64
> virtual cores of gcc110 (the POWER7 machine), and it was godawfully
> slow to work with.
Sorry about that. But it did allow me to trigger the bug I was looking for.

-- 
With best regards, Stas.

_______________________________________________
Gcc-cfarm-users mailing list
Gcc-cfarm-users@gna.org
https://mail.gna.org/listinfo/gcc-cfarm-users

Reply via email to