Re: PATCHES: Countdown for September 21st - 06:00 GMT

[James]

Hello,

On 21/09/13 09:02, David Kastrup wrote:
> David Kastrup <address@hidden> writes:
>
> > James <address@hidden> writes:
> >
> > > Hello,
> > >
> > > Seems I am back on-line. Thanks for filling in David et al.
> > >
> > > *Countdown -- September 21st -- 06:00 GMT*      *
> > > *       *
> > > *       *
> > > *       *
> > > *
> > Oops.  I had the countdown run to Sept 20 and finished it as scheduled,
> > so you'll find less work to complete tomorrow than likely expected.
> >
> > As a note aside: I had patchy-staging run with CPU_COUNT=8 -j8 and it
> > completed just fine (native Ubuntu 13.10 with a manually installed
> > TeXlive installation as the Ubuntu binaries of mpost are still broken).
> >
> > I suspect that your virtual machine is making trouble around 8 parallel
> > jobs.
> Or your executables.  My setup might not be all that representative
> since I am running a 32bit system on a 64bit kernel (which allows me to
> run the occasional 64bit executable, probably including VMs).
>
> But I really suspect you are hitting some VM limit or bug here.  If you
> have 8 real CPUs, maybe you should tell your VM to utilize only 7 or so
> at the max.  make -j8 would likely still run 8 jobs in parallel, but the
> virtual kernel would only have seven of them running on simultaneous
> CPUs at any point of time.
Yes you could be right. It doesn't really matter as I have always run 
with -j7 *and* 7 virtual CPUs - which was why I didn't at first spot the 
8 VCPU setting anomaly. It was just a bit of a head-scratcher.

I've all but finished the new lilydev (which is using Ubuntu base 13.04 
instead of 10.04) and will proceed to give it a bit of a soak test 
(running all the usual stuff I do) for a few days next week to make sure 
it is 'presentable' to the masses. So will see if this also shows this 
same symptom.

I am curious to know why someone would install a 32 bit LINUX OS on 64 
bit hardware though.

James