Florent Monbillard
2015-Apr-10 21:02 UTC
[Gluster-users] self-heal performance regression in 3.6
Hi all, Has anybody observed a performance regression in the self-heal process between 3.4 and 3.6 gluster releases ? The best self-heal performance I achieved was using 3.4.2 and "self-heal-window-size=4? on a large amount of data (several TB) with a mix of small and large files (from 100KB to 4MB). Using self-heal-window-size default value (16) on 3.4.2 or any setting (4 or 16) with 3.6.2 lead to 33% (up to 50%) slowdown compared to the best performance baseline with the same dataset. With several TB of data, that requires many extra hours on 3.6.2 for the self-heal to complete. Other than self-heal-window-size parameter, is there any self-heal performance settings or speed-up tricks I could use either on 3.4 or 3.6 ? Any feedback appreciated. Best regards, Florent Monbillard -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://www.gluster.org/pipermail/gluster-users/attachments/20150410/065256dc/attachment.html>