Re: win32 performance - fsync question
От | Bruce Momjian |
---|---|
Тема | Re: win32 performance - fsync question |
Дата | |
Msg-id | 200502270054.j1R0s0822782@candle.pha.pa.us обсуждение исходный текст |
Ответ на | Re: win32 performance - fsync question ("Magnus Hagander" <mha@sollentuna.net>) |
Список | pgsql-hackers |
Patch applied. Thanks. I assume this is not approprate for 8.0.X. --------------------------------------------------------------------------- Magnus Hagander wrote: > > Magnus prepared a trivial patch which added the O_SYNC flag > > for windows and mapped it to FILE_FLAG_WRITE_THROUGH in > > win32_open.c. > > Attached is this trivial patch. As Merlin says, it needs some more > reliability testing. But the numbers are at least reasonable - it > *seems* like it's doing the right thing (as long as you turn off write > cache). And it's certainly a significant performance increase - it > brings the speed almost up to the same as linux. > > > //Magnus Content-Description: o_sync.patch [ Attachment, skipping... ] > > ---------------------------(end of broadcast)--------------------------- > TIP 8: explain analyze is your friend -- 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, Pennsylvania 19073
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