Neil Conway wrote:
> Bruce Momjian <pgman@candle.pha.pa.us> writes:
> > Another idea --- if fsync() is slow because it can't find the dirty
> > buffers, use write() to write the buffers, copy the buffer to local
> > memory, mark it as clean, then open the file with O_SYNC and write
> > it again.
>
> Yuck.
This idea if mine will not even work unless others are prevented from
writing that data block while I am fsync'ing from local memory --- what
if someone modified and wrote that block before my block did its fsync
write? I would overwrite their new data. It was just a crazy idea.
-- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610)
359-1001+ If your life is a hard drive, | 13 Roberts Road + Christ can be your backup. | Newtown Square,
Pennsylvania19073