Re: Fix overflow of bgwriter's request queue

Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)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)

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ITAGAKI Takahiro
NTT Cyber Space Laboratories