Re: [RFC] changes to buffer.c (was Test12 ll_rw_block error)

[Chris Mason <mason@suse.com>]

On Friday, December 29, 2000 06:58:01 PM +0100 Daniel Phillips
<phillips@innominate.de> wrote:

> Chris Mason wrote:
>> 
>> BTW, the last anon space mapping patch I sent also works on test13-pre5.
>> The block_truncate_page fix does help my patch, since I have bdflush
>> locking pages ( thanks Marcelo )
> 
> Yes it does, but the little additional patch you posted no longer
> applies.  Your patch is suffering badly under pre5 here, reducing
> throughput from around 10 MB/sec to 5-6 MB/sec, and highly variable.  If
> you're not seeing this you should probably try to get a few others to
> run it.
> 

The additional patch I sent (for skipping writepage calls on the first loop
in page_launder) was applied to test13-pre5, in a slightly better form.
So, you'll either need to benchmark in pre4, or make a reversed version for
pre5.

Porting to the prerelease now ;-)

-chris



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