[phobos] std.parallelism unit test hang

Robert Clipsham robert at octarineparrot.com
Sun Jun 5 12:21:36 PDT 2011


On 5 June 2011 05:04, Brad Roberts <braddr at puremagic.com> wrote:

> On 6/4/2011 8:55 PM, David Simcha wrote:
> > On 6/4/2011 11:50 PM, Brad Roberts wrote:
> >> The process is long gone, sorry.
> >>
> >> The box has one amd athlon 64 x2 dual core processor, 1ghz, 512kb cache.
> > ????? I'm pretty sure Athlon 64 X2's don't exist at this slow a clock
> speed, unless you're underclocking.  Also funny
> > because, except for clock speed, this is my hardware as well and I can't
> reproduce this bug after executing the
> > unittests in a loop ~13,000 times.
>
> Hrm, looking at the kernel boot logs, it claims:
>
> [    0.000000] Detected 2004.383 MHz processor.
> [    0.010011] Calibrating delay loop (skipped), value calculated using
> timer frequency.. 4008.76 BogoMIPS (lpj=20043830)
>
> From /proc/cpuinfo (where I got the 1ghz figure).  Looks like it halved the
> two values, which seems wrong:
>

Do you have cpufreq installed? Most distros have it by default and
under-clock your processor when it's not active (if/when it does it depends
on which policy is enabled).

-- 
Robert
http://octarineparrot.com/
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