Marti Raudsepp wrote:
In fact, I was wrong in my earlier post. Linux always offered O_DSYNC behavior. What's new is POSIX-compliant O_SYNC, and the fact that these flags are now distinguished.
While I appreciate that you're trying to help here, I'm unconvinced you've correctly diagnosed a couple of components to what's going on here properly yet. Please refrain from making changes to popular documents like the tuning guide on the wiki based on speculation about what's happening. There's definitely at least one mistake in what you wrote there, and I just reverted the whole set of changes you made accordingly until this is sorted out better.
-- Greg Smith 2ndQuadrant US greg@xxxxxxxxxxxxxxx Baltimore, MD PostgreSQL Training, Services and Support www.2ndQuadrant.us "PostgreSQL 9.0 High Performance": http://www.2ndQuadrant.com/books -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
