Re: 2.6.20-rc2+: CFQ halving disk throughput.

Jens Axboe wrote:

On Mon, Jan 01 2007, Andrew Morton wrote:

The patch would appear to need this fix:

--- a/block/cfq-iosched.c~a
+++ a/block/cfq-iosched.c
@@ -592,7 +592,7 @@ static int cfq_allow_merge(request_queue
 	if (cfqq == RQ_CFQQ(rq))
 		return 1;

- return 1;

+	return 0;
 }

static inline void

_

But that might not fix things...

Yeah it is, but I don't think it'll fix it (if anything, it'll be more
conservative).

(to possibly save others from trying -- no, doesn't fix any)

Rene.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

---

• Follow-Ups:
  • Re: 2.6.20-rc2+: CFQ halving disk throughput.
    • From: Jens Axboe <[email protected]>

• References:
  • 2.6.20-rc2+: CFQ halving disk throughput.
    • From: Rene Herman <[email protected]>
  • Re: 2.6.20-rc2+: CFQ halving disk throughput.
    • From: Andrew Morton <[email protected]>
  • Re: 2.6.20-rc2+: CFQ halving disk throughput.
    • From: Jens Axboe <[email protected]>

• Prev by Date: Re: [PATCH] quiet MMCONFIG related printks
• Next by Date: Re: [PATCH] net: ifb error path loop fix
• Previous by thread: Re: 2.6.20-rc2+: CFQ halving disk throughput.
• Next by thread: Re: 2.6.20-rc2+: CFQ halving disk throughput.
• Index(es):
  • Date
  • Thread

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]