On Jul 29, 2008 18:43 -0400, Mark Seger wrote: > your definition are perfect and I'll add them to my documentation. With > respect to my comment about chmod on 100 files only incrementing the > counter once, it did it 100 times this time when I tired it, so never > mind... > > one counter you didn't mention is getstatus. when does that get updated?
That one is only used once at mount... > -mark > > Andreas Dilger wrote: >> On Jul 29, 2008 14:36 -0400, Mark Seger wrote: >> >>> One thing that confuses me about lustre counters, and maybe others, >>> is I don't really know what they mean, when they change and in fact >>> how to stimulate them to change. For example, on my system I'm >>> doing a watch of /proc/fs/lustre/mdt/MDS/mds/stats and only see 1 >>> reint counter, because the others are all 0. So I went and did some >>> file renames, and chmods and sure enough, the other counters did >>> appear. Cool! >>> >> >> Yes, this is expected. We dropped the "0" counters because they are very >> noisy and useless in most contexts. >> >> >>> The easiest thing for me to do is to simply say that reint_setattr >>> counts the number of setattrs, but that would be a pretty weak >>> definition. When I changed did a single chmod to 100 files, setattr >>> only incremented by 1 and I expected it to increment by 100. >>> >> >> It should have been incremented by 100, and if it didn't it is possibly >> a bug. >> >> >>> want to be the one responsible for the words or all you're going to >>> see is 'reint_setattr counts the number of setattr calls' and I >>> really don't think that would be all that useful to anyone. >>> >> >> "reint_setattr" includes all operations that modify inode attributes, >> including chmod, chown, touch, etc. >> >> >>>>>>> mds_reint_create 11018837 samples [reqs] 1 1 >>>>>>> 11018837 >> >> For mknod and mkdir operations, also used by NFS servers internally >> when creating files. >> >> >>>>>>> mds_reint_link 51315 samples [reqs] 1 1 51315 51315 >>>>>>> >> >> For hard or symbolic links, like with "ln" >> >> >>>>>>> mds_reint_rename 224241 samples [reqs] 1 1 224241 224241 >>>>>>> >> >> For file and directory renames, like with "mv". >> >> >>>>>>> mds_reint_unlink 13109877 samples [reqs] 1 1 >>>>>>> 13109877 >> >> For removing files and directories, like with "rm" or "rmdir". >> >> >>>>>>> mds_getxattr 36089 samples [usec] 9 8996 675208 252525110 >>>>>>> >> >> For extended attributes and ACLs, like with "getfattr" or "getfacl". >> >> >>>>>>> mds_setxattr 1230 samples [usec] 123 10110 >>>>>>> 263367 >> >> For extended attributes and ACLs, like with "setfattr" or "setfacl". >> >> Cheers, Andreas >> -- >> Andreas Dilger >> Sr. Staff Engineer, Lustre Group >> Sun Microsystems of Canada, Inc. >> Cheers, Andreas -- Andreas Dilger Sr. Staff Engineer, Lustre Group Sun Microsystems of Canada, Inc. _______________________________________________ Lustre-discuss mailing list Lustre-discuss@lists.lustre.org http://lists.lustre.org/mailman/listinfo/lustre-discuss