On Mon, Apr 25, 2011 at 4:33 AM, Dan Ports <d...@csail.mit.edu> wrote: > On Sat, Apr 23, 2011 at 08:54:31AM -0500, Kevin Grittner wrote: >> Even though this didn't show any difference in Dan's performance >> tests, it seems like reasonable insurance against creating a new >> bottleneck in very high concurrency situations. >> >> Dan, do you have a patch for this, or should I create one? > > Sure, patch is attached.
Reading the code, IIUC, we check for RW conflicts after each write but only if the writer is running a serializable transaction. Am I correct in thinking that there is zero impact of SSI if nobody is running a serializable transaction? -- Simon Riggs http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
