Hi,
On Wed, Dec 17, 2008 at 4:53 AM, Robert Lor <Robert.Lor@sun.com> wrote:
> @@ -1313,12 +1318,14 @@ AdvanceXLInsertBuffer(bool new_segment)
> * Have to write buffers while holding insert
> lock. This is
> * not good, so only write as much as we
> absolutely must.
> */
> + TRACE_POSTGRESQL_WAL_BUFFER_WRITE_START();
> WriteRqst.Write = OldPageRqstPtr;
> WriteRqst.Flush.xlogid = 0;
> WriteRqst.Flush.xrecoff = 0;
> XLogWrite(WriteRqst, false, false);
> LWLockRelease(WALWriteLock);
> Insert->LogwrtResult = LogwrtResult;
> + TRACE_POSTGRESQL_WAL_BUFFER_WRITE_DONE();
Why is TRACE_POSTGRESQL_WAL_BUFFER_WRITE_START/DONE called
only in AdvanceXLInsertBuffer? We can trace only a part of WAL buffer write?
Regards,
--
Fujii Masao
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
NTT Open Source Software Center