lkml.org 
[lkml]   [2004]   [May]   [10]   [last100]   RSS Feed
Views: [more markup]  [less markup]  [headers]  [forward] 
 
Messages in this thread
/
DateTue, 11 May 2004 00:43:28 +1000
FromNick Piggin <>
SubjectRe: Cache queue_congestion_on/off_threshold
Jens Axboe wrote:
> On Fri, May 07 2004, Chen, Kenneth W wrote:
> 
>>>>>>Jens Axboe wrote on Friday, May 07, 2004 2:39 AM
>>>
>>>On Thu, May 06 2004, Chen, Kenneth W wrote:
>>>
>>>>(3) can we allocate request structure up front in __make_request?
>>>>    For I/O that cannot be merged, the elevator code executes twice
>>>>    in __make_request.
>>>>
>>>
>>>Actually, with the good working batching we might get away with killing
>>>freereq completely. Have you tested that (if not, could you?)
>>
>>Sorry, I'm clueless on "good working batching".  If you could please give
>>me some pointers, I will definitely test it.
> 
> 
> Something like this.
> 

While we're doing that can we drop the GFP_ATOMIC allocation
completely?
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:03    [from the cache]
©2003-2008