Questions about btrfs helper threads

nick xerofoify at gmail.com
Mon Aug 25 12:24:37 EDT 2014



On 14-08-25 01:52 AM, Valdis.Kletnieks at vt.edu wrote:
> On Sun, 24 Aug 2014 23:31:38 -0400, nick said:
>> In addition , why not create a linked list for the compression in btrfs as we
>> can then do the work using the already build in workqueues for btrfs and
>> improve the scalability of the compression functions and workload it causes as
>> compression is very CPU intensive and we can easily take advance of workquenes
>> in order to allow then to run when idle or rarely when CPU is under heavy load.
> 
> Because fsync() exists.
> 
> 
About my other question how many cores is btrfs scaling to? I would like to known for reasons of understanding
the more strict locking I am finding in the btrfs code.
Nick 



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