On Tue, Jun 30, 2015 at 12:52 PM, Simon Riggs <si...@2ndquadrant.com> wrote: > > On 30 June 2015 at 08:13, Michael Paquier <michael.paqu...@gmail.com> wrote: >> >> >> Could it be possible to see some performance numbers? For example with a simple pgbench script doing a bunch of tiny transactions, with many concurrent sessions (perhaps hundreds). > > > I'm more interested to see if people think it is safe. > > This contention is masked by contention elsewhere, e.g. ProcArrayLock, so the need for testing here should come once other patches ahead of this are in. >
Exactly and other lock that can mask this improvement is WALWriteLock, but for that we can take the performance data with synchronous_commit off mode. With Regards, Amit Kapila. EnterpriseDB: http://www.enterprisedb.com
