Messages in this thread | | | Date | Wed, 17 Nov 1999 23:10:05 +0100 | From | Jamie Lokier <> | Subject | Re: Ext2 defragmentation |
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Pavel Machek wrote: > I don't think write performance does the difference. Sorry.
It does, but not as much as you'd think given the noise.
The two main problems with inode write performance:
- They're done in no good order. Hence extra seeks. - They're done at the same time as your carefully optimised read order. Hence they screw it up. - The dirty inodes take up memory which could be used for other inodes..
> [Hey, _what_ write perfrmance? What access times are modified? > Directories access times? That's STRANGE.]
Directory access times are updated because you're reading the directories. That's normal and POSIX. Mount with `nodiratime' if you don't like it.
-- Jamie
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