| To: | "David S. Miller" <davem@xxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: bad TSO performance in 2.6.9-rc2-BK |
| From: | Andi Kleen <ak@xxxxxxx> |
| Date: | Fri, 1 Oct 2004 12:35:54 +0200 |
| Cc: | herbert@xxxxxxxxxxxxxxxxxxx, jheffner@xxxxxxx, ak@xxxxxxx, niv@xxxxxxxxxx, andy.grover@xxxxxxxxx, anton@xxxxxxxxx, netdev@xxxxxxxxxxx |
| In-reply-to: | <20040930204005.69115c0e.davem@xxxxxxxxxxxxx> |
| References: | <20040929162923.796d142e.davem@xxxxxxxxxxxxx> <Pine.NEB.4.33.0409291945100.3434-100000@xxxxxxxxxxxxxx> <20040929170310.46c58095.davem@xxxxxxxxxxxxx> <20040930001007.GB10496@xxxxxxxxxxxxxxxxxxx> <20040930173439.3e0d2799.davem@xxxxxxxxxxxxx> <20040930181248.48185e41.davem@xxxxxxxxxxxxx> <20040930204005.69115c0e.davem@xxxxxxxxxxxxx> |
| Sender: | netdev-bounce@xxxxxxxxxxx |
> How do things look for you with this change Andi? > If things are still out of whack, play around with > different values of /proc/sys/net/ipv4/tcp_tso_win_divisor Still slower, like previously reported. But I tried tweaking the sysctl now. Result is that 2 is pretty good (only 3MB/s) slower and >20 is also pretty good (2MB/s slower). Everything inbetween is a lot slower, varying a bit. I wasn't able to find a setting that gave the same results as TSO off though, although the difference is not that dramatic anymore. -Andi |
| <Prev in Thread] | Current Thread | [Next in Thread> |
|---|---|---|
| ||
| Previous by Date: | Re: bad TSO performance in 2.6.9-rc2-BK, Andi Kleen |
|---|---|
| Next by Date: | Re: [PATCH 2.6.9-rc3] sk98lin - register the driver with hotplug, Mirko Lindner |
| Previous by Thread: | Re: bad TSO performance in 2.6.9-rc2-BK, Andi Kleen |
| Next by Thread: | Re: bad TSO performance in 2.6.9-rc2-BK, John Heffner |
| Indexes: | [Date] [Thread] [Top] [All Lists] |