Guys, We have requests for this improvement. It will help with huge environments, we are talking about >5GiB of logs. Is it on the agenda?
Regards, > On 22 Dec 2014, at 07:28, Bartlomiej Piotrowski <bpiotrow...@mirantis.com> > wrote: > > FYI, xz with multithreading support (5.2 release) has been marked as stable > yesterday. > > Regards, > Bartłomiej Piotrowski > > On Mon, Nov 24, 2014 at 12:32 PM, Bartłomiej Piotrowski > <bpiotrow...@mirantis.com> wrote: > On 24 Nov 2014, at 12:25, Matthew Mosesohn <mmoses...@mirantis.com> wrote: > > I did this exercise over many iterations during Docker container > > packing and found that as long as the data is under 1gb, it's going to > > compress really well with xz. Over 1gb and lrzip looks more attractive > > (but only on high memory systems). In reality, we're looking at log > > footprints from OpenStack environments on the order of 500mb to 2gb. > > > > xz is very slow on single-core systems with 1.5gb of memory, but it's > > quite a bit faster if you run it on a more powerful system. I've found > > level 4 compression to be the best compromise that works well enough > > that it's still far better than gzip. If increasing compression time > > by 3-5x is too much for you guys, why not just go to bzip? You'll > > still improve compression but be able to cut back on time. > > > > Best Regards, > > Matthew Mosesohn > > Alpha release of xz supports multithreading via -T (or —threads) parameter. > We could also use pbzip2 instead of regular bzip to cut some time on > multi-core > systems. > > Regards, > Bartłomiej Piotrowski > > _______________________________________________ > OpenStack-dev mailing list > OpenStackemail@example.com > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev -- Tomasz 'Zen' Napierala Sr. OpenStack Engineer tnapier...@mirantis.com __________________________________________________________________________ OpenStack Development Mailing List (not for usage questions) Unsubscribe: openstack-dev-requ...@lists.openstack.org?subject:unsubscribe http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev