Date: Fri, 1 Jun 2012 16:25:49 -0500 From: Mark Felder <feld@feld.me> To: freebsd-hackers@freebsd.org Cc: Ivan Voras <ivoras@freebsd.org> Subject: Re: SuperPages utilization survey Message-ID: <op.we8ttbzt34t2sn@tech304> In-Reply-To: <jqac8f$6mn$1@dough.gmane.org> References: <jqac8f$6mn$1@dough.gmane.org>
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[/usr/home/feld]# python spsurvey.py last pid: 54743; load averages: 0.28, 0.26, 0.24 up 18+07:41:02 16:22:45 145 processes: 1 running, 144 sleeping Mem: 828M Active, 845M Inact, 8517M Wired, 174M Cache, 725M Buf, 265M Free Swap: 4096M Total, 88M Used, 4008M Free, 2% Inuse Total accounted memory mappings: 23968 MB (6136043 pages) Memory in superpages: 12941 MB (14 mappings) + pid: 26349 (postgres) start: 802800000 stop: 8452c6000 (1066 MB) tp: ph path: + pid: 26351 (postgres) start: 802800000 stop: 8452c6000 (1066 MB) tp: ph path: + pid: 26352 (postgres) start: 802800000 stop: 8452c6000 (1066 MB) tp: ph path: + pid: 26353 (postgres) start: 802800000 stop: 8452c6000 (1066 MB) tp: ph path: + pid: 26374 (postgres) start: 802800000 stop: 8452c6000 (1066 MB) tp: ph path: + pid: 26382 (postgres) start: 802800000 stop: 8452c6000 (1066 MB) tp: ph path: + pid: 26387 (postgres) start: 802800000 stop: 8452c6000 (1066 MB) tp: ph path: + pid: 26388 (postgres) start: 802800000 stop: 8452c6000 (1066 MB) tp: ph path: + pid: 26398 (postgres) start: 802800000 stop: 8452c6000 (1066 MB) tp: ph path: + pid: 44306 (odasrv) start: 801800000 stop: 806000000 (72 MB) tp: df path: + pid: 44318 (odasrv) start: 801800000 stop: 805c00000 (68 MB) tp: df path: + pid: 53549 (postgres) start: 802800000 stop: 8452c6000 (1066 MB) tp: ph path: + pid: 53932 (postgres) start: 802800000 stop: 8452c6000 (1066 MB) tp: ph path: + pid: 54515 (postgres) start: 802800000 stop: 8452c6000 (1066 MB) tp: ph path: Eligible mappings not promoted: 413 Yup, seems like Postgres does a good job of using superpages
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