Le Thu, 19 Aug 2010 13:12:45 +0200 Michael Monnerie <michael.monnerie@xxxxxxxxxxxxxxxxxxx> écrivait: > The subject is a bit harsh, but overall the article says: > XFS is slowest on creating and deleting a billion files > XFS fsck needs 30GB RAM to fsck that 100TB filesystem. > > http://lwn.net/SubscriberLink/400629/3fb4bc34d6223b32/ So We've made a test with 1KB files (space, space...) and a production kernel : 2.6.32.11 (yeah I know, 2.6.38 should be faster but you know, we upgrade our production kernels prudently :). mk1BFiles will create and delete 1000000000 files with 32 threads Version: v0.2.4-10-gf6decd3, build: Sep 7 2010 13:39:34 Creating 1000000000 files, started at 2010-09-07 13:45:16... Done, time spent: 89:35:12.262 Doing `ls -R`, started at 2010-09-11 07:20:28... Stat: ls (pid: 18844) status: ok, returned value: 0 Cpu usage: user: 1:27:47.242, system: 20:18:21.689 Max rss: 229.01 MBytes, page fault: major: 4, minor: 58694 Compute size used by 1000000000 files, started at 2010-09-12 09:30:52... Size used by files: 11.1759 TBytes Size used by directory: 32.897 GBytes Size used (total): 11.2080 TBytes Done, time spent: 25:50:32.355 Deleting 1000000000 files, started at 2010-09-13 11:21:24... Done, time spent: 68:37:38.117 Test run on a dual Opteron quad core, 16 GB RAM, kernel 2.6.32.11 x86_64... -- ------------------------------------------------------------------------ Emmanuel Florac | Direction technique | Intellique | <eflorac@xxxxxxxxxxxxxx> | +33 1 78 94 84 02 ------------------------------------------------------------------------ _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
