Re: `make check' overworks one core on my Core2 quad

[Graham Percival]

On Sun, Dec 13, 2009 at 2:18 PM, Neil Puttock <address@hidden> wrote:
> 2009/12/13 Graham Percival <address@hidden>:
>
>> Be warned that sometimes lilypond-book has hash collisions in the
>> filename, which can lead to weird compile errors when one process
>> finished dealing with aa/lily-aaaa.ps (and thus deletes it), while
>> another process has finished generating aa/lily-aaaa.ps but hasn't
>> started running ps2pdf yet, and thus doesn't find the file that it
>> just wrote.
>
> I used to use -j3 CPU_COUNT=3 on my dual-core system, but since
> changing back to -j2 CPU_COUNT=2, I've had no hash collisions; it
> doesn't make any difference to the build times as far as I can tell.

It's a serious annoyance for me, since I have a quad-core system.
Building the docs for GUB takes at least twice as long as generating
all the binaries and their installers!

I don't think it would be hard to fix this issue for anybody who knows
python, but I'm too busy putting out fires to take a look at it.  :(

Cheers,
- Graham