Re: Re: Re: Fast Inserts and Hardware Questions
От | adb |
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Тема | Re: Re: Re: Fast Inserts and Hardware Questions |
Дата | |
Msg-id | Pine.GSO.4.10.10103161441340.2561-100000@hairdini.beast.com обсуждение исходный текст |
Ответ на | Re: Re: Fast Inserts and Hardware Questions (Alex Howansky <alex@wankwood.com>) |
Ответы |
Re: Re: Re: Fast Inserts and Hardware Questions
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Список | pgsql-general |
it all depends on the number of drives, the type of drives and if raid is being done in hardware or software. A three drive raid 5 array in software with older drives is probably going to be slower than a single 7200rpm ata100 drive. Not that this is what you have, just pointing out that it's possible. Alex. On Fri, 16 Mar 2001, Alex Howansky wrote: > > [Interesting stats] > > > > > Wow, does WAL make so much of a difference as to make my > > > two-generations-old, built-from-spare-parts scrap box faster than my > > > latest and greatest production server? Yikes! > > > > What RAID level are you running? RAID-5 isn't always very > > fast on writes. That and WAL might be what's up. > > Yes, it is RAID-5 on the big box. Unfortunately, I don't have any spare RAID > equipped boxes sitting around, so I can't experiment with the different RAID > levels. Still, you'd think that even a "slow" RAID-5 configuration would be > faster than a $98 IDE drive... > > > Have you tried 7.1b5 on the big box? > > Not yet, I'm waiting for a quiet weekend. I'll post my stats when (if...) I get > around to doing that. > > -- > Alex Howansky > Wankwood Associates > http://www.wankwood.com/ > > > ---------------------------(end of broadcast)--------------------------- > TIP 6: Have you searched our list archives? > > http://www.postgresql.org/search.mpl >
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