On Friday 05 November 2010 21:15:20 Josh Berkus wrote: > All, > > Domas (of Facebook/Wikipedia, MySQL geek) pointed me to this report: > > http://www.phoronix.com/scan.php?page=article&item=linux_perf_regressions&n I guess thats the O_DSYNC thingy. See the "Defaulting wal_sync_method to fdatasync on Linux for 9.1?" (performance) and "Revert default wal_sync_method to fdatasync on Linux 2.6.33+" on hackers.
O_DSYNC got finally properly implemented on linux with 2.6.33 (and thus 2.6.32- rc1). > um=1 http://www.phoronix.com/scan.php?page=article&item=ext4_then_now&num=6 That one looks pretty uninteresting. Barriers are slower then no barriers. No surprise there. Andres -- Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
