On Thu, Feb 25, 2010 at 8:41 AM, Barry Abrahamson <[email protected]> wrote: > > On Feb 25, 2010, at 2:26 AM, David Birdsong wrote: > >> I have seen this happen. >> >> I have a similar hardware setup, though I changed the multi-ssd raid >> into 3 separate cache file arguments. > > Did you try RAID and switch to the separate cache files because performance > was better? seemingly so.
for some reason enabling block_dump showed that kswapd was always writing to those devices despite their not being any swap space on them. i searched around fruitlessly to try to understand the overhead of software raid to explain this, but once i discovered varnish could take on multiple cache files, i saw no reason for the software raid and just abandoned it. > >> We had roughly 240GB storage space total, after about 2-3 weeks and >> sm_bfree reached ~20GB. lru_nuked started incrementing, sm_bfree >> climbed to ~60GB, but lru_nuking never stopped. > > How did you fix it? i haven't yet. i'm changing up how i cache content, such that lru_nuking can be better tolerated. > > > -- > Barry Abrahamson | Systems Wrangler | Automattic > Blog: http://barry.wordpress.com > > > > _______________________________________________ varnish-misc mailing list [email protected] http://projects.linpro.no/mailman/listinfo/varnish-misc
