| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
| Cc: | Magnus Hagander <mha(at)sollentuna(dot)net>, pgsql-hackers(at)postgresql(dot)org, pgsql-hackers-win32(at)postgresql(dot)org, Merlin Moncure <merlin(dot)moncure(at)rcsonline(dot)com> |
| Subject: | Re: Changing the default wal_sync_method to open_sync for Win32? |
| Date: | 2005-03-17 04:26:09 |
| Message-ID: | 20025.1111033569@sss.pgh.pa.us |
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| Lists: | pgsql-hackers pgsql-hackers-win32 |
Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> writes:
> Notice we never default to open_sync. However, on Win32, Magnus got a
> 60% speedup by using open_sync, implemented using
> FILE_FLAG_WRITE_THROUGH. Now, because this the fastest on Win32, I
> think we should default to open_sync on Win32. The attached patch
> implements this.
... and breaks open_datasync for all other platforms ...
regards, tom lane
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