Ludovic Courtès <l...@gnu.org> writes: > Hi, > > Mathieu Othacehe <othac...@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?
I think Ricardo mentioned that the machine running Cuirass uses an SSD for the root filesystem, so moving the database there may help?
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