From: "Chen, Kenneth W" <kenneth.w.chen@intel.com>
To: "'Jens Axboe'" <axboe@suse.de>
Cc: "'Andrew Morton'" <akpm@osdl.org>, <linux-kernel@vger.kernel.org>
Subject: RE: Cache queue_congestion_on/off_threshold
Date: Fri, 7 May 2004 15:00:10 -0700 [thread overview]
Message-ID: <200405072200.i47M0AF00868@unix-os.sc.intel.com> (raw)
In-Reply-To: <20040507093921.GD21109@suse.de>
>>>> 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.
- Ken
next prev parent reply other threads:[~2004-05-07 22:00 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-05-05 22:12 Chen, Kenneth W
2004-05-06 6:20 ` Jens Axboe
2004-05-06 6:34 ` Andrew Morton
2004-05-06 6:43 ` Jens Axboe
2004-05-06 20:30 ` Chen, Kenneth W
2004-05-07 3:02 ` Andrew Morton
2004-05-07 9:35 ` Jens Axboe
2004-05-06 20:29 ` Chen, Kenneth W
2004-05-07 9:39 ` Jens Axboe
2004-05-07 22:00 ` Chen, Kenneth W [this message]
2004-05-10 14:30 ` Jens Axboe
2004-05-10 14:43 ` Nick Piggin
2004-05-10 14:44 ` Jens Axboe
2004-05-11 3:22 ` Nick Piggin
2004-05-12 5:32 ` Chen, Kenneth W
2004-05-12 7:05 ` Jens Axboe
2004-05-12 13:48 ` Jens Axboe
2004-05-12 14:22 ` Jens Axboe
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