Chris, could you provide some more info on you experience? Were you using mmapped files? Using row or key caches? What were the memtabe thresholds? Using mlockall() ?
There are a couple of issues listed in the first paragraphs here that at first glance may cause issues http://www.oracle.com/technetwork/java/javase/tech/largememory-jsp-137182.html cheers Aaron On 17/01/2011, at 1:45 PM, Chris Goffinet <c...@chrisgoffinet.com> wrote: > I've seen about a 13% improvement in practice. > > -Chris > > On Jan 16, 2011, at 4:01 PM, David Dabbs wrote: > >> Hello. >> >> Can anyone comment on the performance impact (positive or negative) >> of running Cassandra configured to use large pages under Linux? >> Yes, YMMV applies, but I thought I'd ask before enlisting sysadmin Fu, etc. >> >> >> Thanks! >> >> David >> >> >
