On Sat, 6 Nov 2004, Don Lewis wrote:
On 6 Nov, Marc G. Fournier wrote:
Well, finally had a reason to use it, and its running right now ... seems a bit slower in phase 2 then before ... is to be expected? Looking through the patch, it seems that all pass's were affected, so this might be now the norm ... after ~39minutes running on a very large file system, hitting ctl-T periodically, I'm up to about 50% through Phase 2 ... so far *knock on wood* no errors being generated by fsck itself, but that doesn't mean anything :)
Under normal circumstances, there shouldn't be any noticeable difference in performance. If there are a lot of zero link count files, phase 1 should be very slightly faster because the zero link count file list no longer needs to be allocated, and phase 4 should be a lot faster. Most of the time in phases 1 and 2 is consumed by disk reads. The only change to phase 2 was the addition of the new inode states to a couple of case statements and an if statement which should not affect the amount of I/O done and CPU time would only be affected by a miniscule amount, so I would not expect any change to the performance of that phase.
Hindsight is 20/20, but I should have trap' the output ... I saw several 'ZERO LENGTH DIRECTORY' messages in Phase 4 still ... should I have seen any at all?
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