| To: | Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: bad TSO performance in 2.6.9-rc2-BK |
| From: | "David S. Miller" <davem@xxxxxxxxxxxxx> |
| Date: | Mon, 27 Sep 2004 12:01:54 -0700 |
| Cc: | ak@xxxxxxx, niv@xxxxxxxxxx, andy.grover@xxxxxxxxx, anton@xxxxxxxxx, netdev@xxxxxxxxxxx |
| In-reply-to: | <20040927054541.GA8858@xxxxxxxxxxxxxxxxxxx> |
| References: | <20040923164149.5368d291.davem@xxxxxxxxxxxxx> <E1CBkIW-0001dF-00@xxxxxxxxxxxxxxxxxxxxxxxx> <20040927025048.GA6723@xxxxxxxxxxxxxxxxxxx> <20040926210029.22750d47.davem@xxxxxxxxxxxxx> <20040927054541.GA8858@xxxxxxxxxxxxxxxxxxx> |
| Sender: | netdev-bounce@xxxxxxxxxxx |
On Mon, 27 Sep 2004 15:45:41 +1000 Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> wrote: > On Sun, Sep 26, 2004 at 09:00:29PM -0700, David S. Miller wrote: > > > > The very next time we check to see if we can > > make forward progress on the send queue we'll call tcp_current_mss() > > which causes the right things to happen. > > tcp_current_mss() doesn't call tcp_sync_mss() unless the PMTU changes. Good catch, probably we should make it do so when sk_route_caps indicates we are doing TSO. |
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