Peter Geoghegan writes:
> On 10 May 2012 05:55, Tom Lane wrote:
>> I had already removed the unconditional
>> PostmasterIsAlive calls in bgwriter and pgstat in previous patches, but
>> forgot that WL_POSTMASTER_DEATH is supposed to be treated as untrustworthy
>> (per comment in unix_latch.c); so
On 10 May 2012 05:55, Tom Lane wrote:
> In checkpointer and walwriter, avoid calling PostmasterIsAlive unless
> WaitLatch has reported WL_POSTMASTER_DEATH. This saves a kernel call per
> iteration of the process's outer loop, which is not all that much, but a
> cycle shaved is a cycle earned. I
Improve tests for postmaster death in auxiliary processes.
In checkpointer and walwriter, avoid calling PostmasterIsAlive unless
WaitLatch has reported WL_POSTMASTER_DEATH. This saves a kernel call per
iteration of the process's outer loop, which is not all that much, but a
cycle shaved is a cycl
