From: "Ludovic Courtès" <ludo@gnu.org>
To: Mathieu Othacehe <othacehe@gnu.org>
Cc: 43850@debbugs.gnu.org
Subject: bug#43850: cuirass: inconsistent SQL queries execution time.
Date: Mon, 26 Oct 2020 23:59:51 +0100 [thread overview]
Message-ID: <87blgo8ufs.fsf@gnu.org> (raw)
In-Reply-To: <87blguzdig.fsf@gnu.org> (Mathieu Othacehe's message of "Thu, 22 Oct 2020 13:49:43 +0200")
Hi,
Mathieu Othacehe <othacehe@gnu.org> skribis:
>> I have now copied the database to a tmpfs mounted directory to make sure
>> that those inconsistent duration are only caused by the I/O pressure on
>> berlin.
>
> This helps a lot. The Cuirass web service has been running smooth since
> two days, without any inconsistent query times.
Interesting.
> I'm considering using a tmpfs backed database for good. The problem is
> that we would need a save/restore mechanism in case Berlin
> reboots.
Hmm sounds risky, no?
I wonder if we could instead ensure no I/O-intensive workload runs that
machine. I’m thinking in particular of the derivations that produce
ISO/qcow images that are not offloaded but maybe should.
WDYT? Do you think that’d be enough? Or is tmpfs our only hope?
Thanks,
Ludo’.
next prev parent reply other threads:[~2020-10-26 23:01 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-07 16:04 bug#43850: cuirass: inconsistent SQL queries execution time Mathieu Othacehe
2020-10-14 16:53 ` Mathieu Othacehe
2020-10-20 11:45 ` Mathieu Othacehe
2020-10-22 11:49 ` Mathieu Othacehe
2020-10-26 22:59 ` Ludovic Courtès [this message]
2020-10-27 9:28 ` Christopher Baines
2020-10-27 14:10 ` Mathieu Othacehe
2020-10-27 18:11 ` Mathieu Othacehe
2021-03-25 12:46 ` Mathieu Othacehe
2020-10-31 4:33 ` Maxim Cournoyer
2020-11-01 18:23 ` Mathieu Othacehe
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