[Bug: 21.5-b28] itimer freezes vm
giacomo.boffi at polimi.it
Thu Apr 3 11:04:43 EDT 2008
Aidan Kehoe writes:
> Ar an fichiÃº lÃ¡ de mÃ MÃ¡rta, scrÃobh Stephen J. Turnbull:
> > Giacomo Boffi writes:
> > > when i use vm (the mail agent) xemacs freezes very often, usually with
> > > no arm and even unfreezes without manual intervention, if i go, e.g.,
> > > to the coffe machine and back...
> > I believe that with Mule (at least) some operation that VM does in the
> > background is O(N^2) in buffer size; on a 1.8GHz AMD64 system I only
> > see the freezes when INBOX gets above about 60MB, but then things
> > rapidly get worse.
> > File I/O, specifically autosaves, can take a long time too if you have
> > many (> 10) VM folders open.
> I see that on OS X, with its underperforming filesystem, but not on other
> platforms (my VM use is mainly on 64-bit FreeBSD). Giacomoâs on Linux, so
> that shouldnât be it.
i have trimmed the size of the INBOX (it's now about 1/3) and i have
seen an amelioration of the freezes, but freezes they are anyhow
> > > aside from the bug report, is it possible to put in place an ad
> > > interim workaround?
> > Sorry, not at the moment, but I plan to work on this a bit in the near
> > future. You should try reporting on the VM channels (M-x
> > report-vm-bug is the way to go, I think).
> It should be possible to set vm-flush-interval to nil; this will only sync
> in-memory changes using the normal autosave procedure and manual saves. This
> might be good enough for Giacomo.
i have followed your suggestion, let's see...
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