Hans Reiser wrote:
>
> Andrew and Chris, are these changes in performance definitely due to VM
> changes (and not some difference I am not thinking of between 2.5 and
> 2.4 reiserfs code)?
>
aim9 is just doing
for (lots)
close(creat(filename))
ie: deleting a zero-length file.
So I changed inode_setattr() to not call into the filesystem
at all if i_size was not being altered. Not a very interesting
optimisation, but it was simple to do.
It seems that reiserfs_truncate() has a lot of setup overhead.
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This archive was generated by hypermail 2b29 : Mon Dec 23 2002 - 22:00:15 EST