| From: | Andrew Dunstan <andrew(at)dunslane(dot)net> |
|---|---|
| To: | Rod Taylor <pg(at)rbt(dot)ca> |
| Cc: | "Bort, Paul" <pbort(at)tmwsystems(dot)com>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Compression and on-disk sorting |
| Date: | 2006-05-16 16:27:42 |
| Message-ID: | 4469FD7E.2070805@dunslane.net |
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| Lists: | pgsql-hackers pgsql-patches |
Rod Taylor wrote:
>> I habitually turn off all compression on my Windows boxes, because it's
>> a performance hit in my experience. Disk is cheap ...
>>
>
> Disk storage is cheap. Disk bandwidth or throughput is very expensive.
>
Sure, but in my experience using Windows File System compression is not
a win here. Presumably if it were an unqualified win they would have it
turned on everywhere. The fact that there's an option is a good
indication that it isn't in many cases. It is most commonly used for
files like executables that are in effect read-only - but that doesn't
help us.
cheers
andrew
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