GCC snapshot generation (was Re: htdig and sources.redhat.com loadavg)

[Zack Weinberg]

Jason Molenda <jason-swarelist@molenda.com> writes:

> The schedule of crontabs is rather carefully considered.  The
> service load on sourceware variest considerably by hour-of-the-day --
> Monday mornings EST happen to be the highest load of the week.
> Sunday is the lowest load.
>
> The htdig index update jobs are scheduled so they finish before
> the weekday morning load happens.  When something goes wrong - as
> it did in this case - and htdig runs into the morning rush, the
> system trashes for quite a long time.

One thing I was wondering this morning was whether GCC snapshot
generation should be moved to a lower-load time.  Sunday afternoon EST
for instance.  I don't have a good sense of how much it contributes to
the overall problem, but I've had 'cvs update' collide with its locks
on three successive Mondays now.

zw