From: | Ron Mayer <rm_pg(at)cheapcomplexdevices(dot)com> |
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To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Subject: | Re: O_NOATIME |
Date: | 2006-08-03 20:52:28 |
Message-ID: | 44D2620C.3070506@cheapcomplexdevices.com |
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Lists: | pgsql-hackers |
Tom Lane wrote:
> Ron Mayer <rm_pg(at)cheapcomplexdevices(dot)com> writes:
>> Would people be interested in a trivial patch that adds O_NOATIME
>> to open() for platforms that support it? (apparently Linux 2.6.8
>> and better).
>
> Isn't that usually, and more portably, handled in the filesystem
> mount options?
Yes to both. I could imagine that for small systems/workstations
you might have some files that want access time, and others that
wanted NOATIME -- it seems the new flag lets you choose on a
file-by-file bases.
That's why I asked. I imagine it won't help on any well-administered
production server since they'd probably mount the whole filesystem
that way; but might help a bit on out-of-the-box-default-config
benchmarks done by naive users who don't tweak filesystem settings.
Don't know if we'd care about such an audience or not.
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