| To: | Anton Blanchard <anton@xxxxxxxxx> |
|---|---|
| Subject: | Re: bad TSO performance in 2.6.9-rc2-BK |
| From: | Nivedita Singhvi <niv@xxxxxxxxxx> |
| Date: | Mon, 20 Sep 2004 08:54:18 -0700 |
| Cc: | netdev@xxxxxxxxxxx |
| In-reply-to: | <20040920063012.GL2825@krispykreme> |
| References: | <20040920063012.GL2825@krispykreme> |
| Sender: | netdev-bounce@xxxxxxxxxxx |
| User-agent: | Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.4.1) Gecko/20031030 |
Anton Blanchard wrote: Hi, I just tried latest 2.6.9-rc2-BK on a machine with an e1000 on it. With TSO off it does about 100MB/sec. With TSO on it does between 1MB/sec and 10MB/sec. Hey Anton, yep, I was just debugging this. TSO mainline reworked implementation is still not cooked. Don't worry, final state won't be this bad :). Could you echo 0 > /proc/sys/net/ipv4/tcp_bic and redo test, please? |
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