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SubjectRe: 2.5.70-mm1
> OK, a 10x improvement isn't too bad.  I'm hoping the gap between ext2 and
> ext3 is mainly idle time and not spinning-on-locks time.
>
>
>>
>> 2024927 267.3% total
>> 1677960 472.8% default_idle
>> 116350 0.0% .text.lock.transaction
>> 42783 0.0% do_get_write_access
>> 40293 0.0% journal_dirty_metadata
>> 34251 6414.0% __down
>> 27867 9166.8% .text.lock.attr
>
> Bah. In inode_setattr(), move the mark_inode_dirty() outside
> lock_kernel().

OK, will do.

>> 20016 2619.9% __wake_up
>> 19632 927.4% schedule
>> 12204 0.0% .text.lock.sched
>> 12128 0.0% start_this_handle
>> 10011 0.0% journal_add_journal_head
>
> hm, lots of context switches still.

I think that's ext3 busily kicking the living crap out of semaphores ;-)
See __down above ...

M.

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