| To: | "David S. Miller" <davem@xxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: bad TSO performance in 2.6.9-rc2-BK |
| From: | Andi Kleen <ak@xxxxxxx> |
| Date: | Fri, 24 Sep 2004 10:30:07 +0200 |
| Cc: | Andi Kleen <ak@xxxxxxx>, niv@xxxxxxxxxx, andy.grover@xxxxxxxxx, anton@xxxxxxxxx, netdev@xxxxxxxxxxx |
| In-reply-to: | <20040923161141.4ea9be4c.davem@davemloft.net> |
| References: | <20040921155835.18aee381.davem@davemloft.net> <20040922140000.GD27432@wotan.suse.de> <20040922111209.7887df53.davem@davemloft.net> <20040922195515.GA2619@wotan.suse.de> <c0a09e5c04092213126ba5f29d@mail.gmail.com> <20040922133906.7d57ef49.davem@davemloft.net> <20040922220628.GC2619@wotan.suse.de> <20040922152535.7bc81c8a.davem@davemloft.net> <20040922224732.GD2619@wotan.suse.de> <20040923161141.4ea9be4c.davem@davemloft.net> |
| Sender: | netdev-bounce@xxxxxxxxxxx |
> Anyways, for testing, something like the patch below. If things > still stink a bit, try using a limit of "2" in this patch instead > of "4". Doesn't help unfortunately. Anything >= 2 gives 22MB/s or even below (e.g. 3 gives 16MB/s). The only factor that works is 1, but that turns TSO effectively off, doesn't it? -Andi |
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