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Re: Changing the default wal_sync_method to open_sync for Win32?
- 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: Wed, 16 Mar 2005 23:26:09 -0500
- Message-id: <20025(dot)1111033569(at)sss(dot)pgh(dot)pa(dot)us>
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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