Re: 2.5.70-mm1 Strangeness

[David S. Miller (davem@redhat.com)]

   From: Andrew Morton <akpm@xxxxxxxxx>
   Date: Thu, 29 May 2003 13:55:41 -0700

   The ip_dst_cache seems unreasonably large.  Unless your desktop is a
   backbone router or something.

Lots of DST entries can result on any machine actually.  We create one
per source address, not just per destination address.  So if you talk
to a lot of sites, or lots of sites talk to you, you'll get a lot of
DST entries.

Regardless, 80MB _IS_ excessive.  That's nearly 400,000 entries.
It definitely indicates there is a leak somewhere.

Although it say:

ip_dst_cache       19470  19470   4096    1    1

Which is 19470 active objects right?

There is a known aparent issue with IPV6, there is some DST
leak there, but that is irrelevant here since we're clearly
talking about the ipv4 dst cache.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/