On Wed, Feb 17, 2010 at 3:03 PM, Magnus Hagander <magnus(at)hagander(dot)net> wrote:
> In that case, O_DIRECT would be counterproductive, no? It maps to
> FILE_FLAG_NOI_BUFFERING, which makes sure it doesn't go into the
> cache. So the read in the startup proc is actually guaranteed to
> reuqire a physical read - of something we just wrote, so it'll almost
> certainly end up waiting for a rotation, no?
>
> Seems like getting rid of O_DIRECT here is the right thing to do,
> regardless of this.
Agreed. I'll remove O_DIRECT from walreceiver.
Regards,
--
Fujii Masao
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
NTT Open Source Software Center