Hi,
Robert Lor <Robert.Lor@Sun.COM> wrote:
> The attached patch contains the probes (originally came from Theo
> Schlossnagle) that were removed from the previous submitted patch.
> Zdenek had some concerns about the way the probes were implemented
> http://archives.postgresql.org/pgsql-hackers/2008-07/msg01168.php. If
> there are specific recommendations, I'd be more than happy to make the
> changes and get them resubmitted.
This will introduce SLRU and Executor probes.
We already have Lock, LWLock, Buffer, I/O and XLogs probes.
I'd like to have the following probes, too. In my experience,
they could be bottlenecks or consume much time in some situations.
- idle in transaction - spinlock wait-and-retry - CPU: Trigger execution - CPU: Encoding conversion -
Network:send() and recv() - smgr: lseek() calls - Tempfile reads and writes
Regards,
---
ITAGAKI Takahiro
NTT Open Source Software Center
