Messages in this thread | | | From | (Alan Brown) | Subject | Re: noatime support in kernel? | Date | 29 Oct 1996 00:15:40 +1300 |
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In article <54r3k4$g02@palladium.transmeta.com>, H. Peter Anvin <hpa@transmeta.com> wrote:
>Doing this in general breaks UNIX security as we know it, so it >*definitely* would have to be a filesystem mount option.
The atime patch is implemented as a mount option (no_atime)
The inode patch seems to be also, but its major intended use is to read files which are globally readable anyway. In most situations, the news partition (whether a disk or an md array) is on its lonesome anyway, as that's the only way to get enough speed out of them.
FWIW, my news machine is averaging 5 article writes per second and about 5 times that figure for reads. The atime patch led to a 400% speedup in UUCP newsbatching on my system, so the 30% being bandied around can be improved on in some specialised circumstances (presorted batchlist, enough ram to buffer/cache things, etc)
AB -- If you go down to the woods today you're sure for a big surpise: Teddies in leather who bang heads together, with black liner round their eyes.
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