Re: Fix overflow of bgwriter's request queue - Mailing list pgsql-patches

From ITAGAKI Takahiro
Subject Re: Fix overflow of bgwriter's request queue
Date
Msg-id 20060310194320.4CA3.ITAGAKI.TAKAHIRO@lab.ntt.co.jp
Whole thread Raw
In response to Re: Fix overflow of bgwriter's request queue  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-patches
Tom Lane <tgl@sss.pgh.pa.us> wrote:

> I've applied the attached modified version of your patch.  In this
> coding, absorbs are done after every 1000 buffer writes in BufferSync
> and after every 10 fsyncs in mdsync.  We may need to twiddle these
> numbers but it seems at least in the right ballpark.  If you have time
> to repeat your original test and see how this does, it'd be much
> appreciated.

Thank you. It worked well on my machine(*).
Undesirable behavior was not seen.

(*)
TPC-C(DBT-2)
RHEL4 U1 (2.6.9-11)
XFS, 8 S-ATA disks / 8GB memory(shmem=512MB)

---
ITAGAKI Takahiro
NTT Cyber Space Laboratories



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