On 2013-10-15 07:53, Dmitriy Makarov wrote: > Please, any idea, thougth, help! > Maybe what information can be useful for diggin - anything... > > System what I'm talkin about has a huge problem: performance degradation in > short time period (day-two). Don't know can we somehow relate this vmstat > fails with degradation. > > > >> Hi all >> >> On CURRENT r255173 we have some interesting values from vmstat -z : REQ = >> FAIL >> >> [server]# vmstat -z >> ITEM SIZE LIMIT USED FREE REQ FAIL SLEEP >> ....... skipped.... >> NCLNODE: 528, 0, 0, 0, 0, 0, 0 >> space_seg_cache: 64, 0, 289198, 299554,25932081,25932081, 0 >> zio_cache: 944, 0, 37512, 50124,1638254119,1638254119, >> 0 >> zio_link_cache: 48, 0, 50955, 38104,1306418638,1306418638, >> 0 >> sa_cache: 80, 0, 63694, 56, 198643,198643, 0 >> dnode_t: 864, 0, 128813, 3, 184863,184863, 0 >> dmu_buf_impl_t: 224, 0, 1610024, 314631,157119686,157119686, >> 0 >> arc_buf_hdr_t: 216, 0,82949975, 56107,156352659,156352659, >> 0 >> arc_buf_t: 72, 0, 1586866, 314374,158076670,158076670, >> 0 >> zil_lwb_cache: 192, 0, 6354, 7526, 2486242,2486242, 0 >> zfs_znode_cache: 368, 0, 63694, 16, 198643,198643, 0 >> ..... skipped ...... >> >> Can anybody explain this strange failures in zfs related parameters in >> vmstat, can we do something with this and is this really bad signal? >> >> Thanks! > > _______________________________________________ > [email protected] mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "[email protected]" I am guessing those 'failures' are failures to allocate memory. I'd recommend you install sysutils/zfs-stats and send the list the output of 'zfs-stats -a'
-- Allan Jude _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "[email protected]"
