I`d like to suggest in-memory compression, way better than swap and will increase effective rss snapshot size almost twice, especially on smaller VMs (with ratio 0.6...0.7):
http://repo.flops.ru/debian/pool/free/z/zram-swap/ , versions for all other distros can be fetched there too. On Thu, Aug 21, 2014 at 1:47 PM, Mike Scherbakov <[email protected]> wrote: > I would disable swap at all. If we run out of memory, we simply fail the > build, instead of overusing disk. > If it's really that much of memory needed (I'd like to know details though > what services need that much), then looks like we have no other choice than > to increase memory for envs. > > Thanks, > Mike Scherbakov > #mihgen > > On Aug 21, 2014 1:41 PM, "Sergii Golovatiuk" <[email protected]> > wrote: >> >> Hi, >> >> Digging the issue with Galera, I found that our environments have very >> high RAM utilization which leads to the problem during environment >> deployment. For instance "HA deployment + neutron/GRE" requires almost >> 2.6-2.7 GB during deployment >> (corosync+mysql+puppet++rabbit+neutron+ovs+openstack services). I found high >> swap in/swap out usage during deployment with very high load average. This >> creates many sporadic issues with some services. They time out in random >> place making our debugging very hard. I would like to review our policy for >> CI environment and increase RAM (at least for bvt tests) to 3 GB. >> >> -- >> Best regards, >> Sergii Golovatiuk, >> Skype #golserge >> IRC #holser >> >> -- >> Mailing list: https://launchpad.net/~fuel-dev >> Post to : [email protected] >> Unsubscribe : https://launchpad.net/~fuel-dev >> More help : https://help.launchpad.net/ListHelp >> > > -- > Mailing list: https://launchpad.net/~fuel-dev > Post to : [email protected] > Unsubscribe : https://launchpad.net/~fuel-dev > More help : https://help.launchpad.net/ListHelp > -- Mailing list: https://launchpad.net/~fuel-dev Post to : [email protected] Unsubscribe : https://launchpad.net/~fuel-dev More help : https://help.launchpad.net/ListHelp
