Re: Tracking actual disk write sources instead of flush thread

[Phillip Susi <psusi@ubuntu.com>]

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On 04/23/2014 07:00 PM, Theodore Ts'o wrote:
> On Wed, Apr 23, 2014 at 03:39:19PM -0400, Phillip Susi wrote:
>> I'm just a little flabbergasted that this regression ( I'm sure
>> there was a time when the current io accounting mechanism did
>> work, probably before the buffer_head -> page cache transition
>> way, *way* back when )
> 
> Using what tool?  Task-level io accounting is new compared to the 
> buffer -> page cache transition, as far as I can remember.

Using iotop.  I thought that task level io accounting went all the way
back to bsd?


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