search for: swappiness0

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2016 Oct 10
0
Dealing with swappiness on host systems
...ree but apparently this is not as easy as I'd hoped it would be. This is on a CentOS 7 system. At first I tried setting /proc/sys/vm/swappiness to 1 (apparently setting it to 0 now means even the OOM killer takes precedence over swapping: https://www.percona.com/blog/2014/04/28/oom-relation-vm-swappiness0-new-kernel/ ). After doing this I could still see the used swap increase for a guest even though there were 28G of memory used only as page-cache on the host. Taking another look at it I notices that swappiness can now apparently be controlled on a per-process basis as well by means of using the f...
2015 Jun 06
1
Effectiveness of CentOS vm.swappiness
...W: Is there a way to find out which parts of a programm are swapped out without using monsters like Valgrind? Damn, sounds like an interesting start of the week... [1] http://northernmost.org/blog/find-out-what-is-using-your-swap/ [2] http://www.mysqlperformanceblog.com/2014/04/28/oom-relation-vm-swappiness0-new-kernel/ Cheers to all for the feedback and help, Shorty
2015 Jun 05
2
Effectiveness of CentOS vm.swappiness
Am 05.06.2015 um 18:33 schrieb Gordon Messmer: > On 06/05/2015 03:29 AM, Markus "Shorty" Uckelmann wrote: >> some (probably unused) parts are swapped out. But, some of >> those parts are the salt-minion, php-fpm or mysqld. All services which >> are important for us and which suffer badly from being swapped out. > > Those two things can't really both be