Messages in this thread Patch in this message | | | Date | Thu, 12 Mar 1998 20:46:34 +0100 (CET) | From | Andrea Arcangeli <> | Subject | Re: pre-2.1.90.. |
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On Wed, 11 Mar 1998, Linus Torvalds wrote:
> > >On Wed, 11 Mar 1998, David S. Miller wrote: >> >> I'll make a pre-90-2 with this thing included, and we can remove it >> again if it turns out that David is correct (which is likely, but >> I'd like to hear more about this and I already applied the patch..) >> >> Ok, I hope my other patches I sent you last night are in there too? >> Let's try to keep our trees in sync as best as possible. > >Yes, all your patches should be there too. The pre-90-2 is out there >already, so feel free to verify that (and pre-90-2 also contains the first >cut of my spinlock changes wrt the task lists - not all of the things I >was talking about, but maybe enough that Ingo will be interested).
pre-2.1.90-2 works fine also with my patch rejected but then seems to be _very_ less responsive using eth0 (at least in a recursive telnet session). My loopback test, that stalls in pre-2.1.90-1, instead run faster with my patch rejected (it runs 2sec/100Mbyte faster).
If my simple patch is really useful (as it seems to me) I' d like to see this two line of log :-)
--- /usr/src/linux/net/ipv4/tcp.c Thu Mar 12 19:16:37 1998 +++ linux/net/ipv4/tcp.c Thu Mar 12 21:02:20 1998 @@ -201,6 +201,8 @@ * tcp_do_sendmsg to avoid burstiness. * Eric Schenk : Fix fast close down bug with * shutdown() followed by close(). + * Andrea Arcangeli: Improved tcp performance sending an + * extra ack if needed in cleanup_rbuf(). * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License If you think that the drop of performance in recursive telnet sessions is due to some bug somewhere I can continue to search for a right fix (or maybe David has just fixed this for us).
Andrea[s] Arcangeli
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