Just to add to the pile...use the Deadline or NOOP I/O scheduler. -Z
On Sat, Jun 8, 2013 at 4:40 PM, Mark Miller <markrmil...@gmail.com> wrote: > Turning swappiness down to 0 can have some decent performance impact. > > - http://en.wikipedia.org/wiki/Swappiness > > In the past, I've seen better performance with ext3 over ext4 around > commits/fsync. Test were actually enough slower (lots of these operations), > that I made a special ext3 partition workspace for lucene/solr dev. (Still > use ext4 for root and home). > > Have not checked that recently, and it may not be a large concern for many > use cases. > > - Mark > > On Jun 4, 2013, at 6:48 PM, Tim Vaillancourt <t...@elementspace.com> wrote: > > > Hey all, > > > > Does anyone have any advice or special filesytem tuning to share for > Lucene/Solr, and which file systems they like more? > > > > Also, does Lucene/Solr care about access times if I turn them off (I > think I doesn't care)? > > > > A bit unrelated: What are people's opinions on reducing some consistency > things like filesystem journaling, etc (ext2?) due to SolrCloud's > additional HA with replicas? How about RAID 0 x 3 replicas or so? > > > > Thanks! > > > > Tim Vaillancourt > >
