From: "David S. Miller" <davem@redhat.com>
To: akpm@digeo.com
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: 2.5.41-mm2
Date: Wed, 09 Oct 2002 22:59:41 -0700 (PDT) [thread overview]
Message-ID: <20021009.225941.88169695.davem@redhat.com> (raw)
In-Reply-To: <3DA512B1.63287C02@digeo.com>
but we're seeing a consistent few-percent regression in tests which perform
networking to localhost.
There's debugging code in loopback that is helping us stress test
the TCP segmentation offload, you might want to disable that to
get more reliable numbers in 2.5.x.
Try this:
--- drivers/net/loopback.c.~1~ Wed Oct 9 23:01:16 2002
+++ drivers/net/loopback.c Wed Oct 9 23:01:35 2002
@@ -190,12 +190,12 @@
dev->rebuild_header = eth_rebuild_header;
dev->flags = IFF_LOOPBACK;
dev->features = NETIF_F_SG|NETIF_F_FRAGLIST|NETIF_F_NO_CSUM|NETIF_F_HIGHDMA;
-
+#if 0
/* Current netfilter will die with oom linearizing large skbs,
* however this will be cured before 2.5.x is done.
*/
dev->features |= NETIF_F_TSO;
-
+#endif
dev->priv = kmalloc(sizeof(struct net_device_stats), GFP_KERNEL);
if (dev->priv == NULL)
return -ENOMEM;
--
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next prev parent reply other threads:[~2002-10-10 5:59 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-10 5:40 2.5.41-mm2 Andrew Morton
2002-10-10 5:59 ` David S. Miller [this message]
2002-10-10 6:45 ` 2.5.41-mm2 Ingo Molnar
2002-10-10 6:44 ` 2.5.41-mm2 Dave Hansen
2002-10-11 4:32 ` 2.5.41-mm2 Dave Hansen
2002-10-11 5:30 ` 2.5.41-mm2 Ingo Molnar
2002-10-10 8:18 ` 2.5.41-mm2 William Lee Irwin III
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