Messages in this thread | | | Date | Thu, 27 Jan 2005 11:19:20 +0100 | From | Alessandro Suardi <> | Subject | Re: Memory leak in 2.6.11-rc1? |
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On Thu, 27 Jan 2005 00:47:32 -0800, Andrew Morton <akpm@osdl.org> wrote: > Russell King <rmk+lkml@arm.linux.org.uk> wrote: > > > > This mornings magic numbers are: > > > > 3 > > ip_dst_cache 1292 1485 256 15 1 > > I just did a q-n-d test here: send one UDP frame to 1.1.1.1 up to > 1.1.255.255. The ip_dst_cache grew to ~15k entries and grew no further. > It's now gradually shrinking. So there doesn't appear to be a trivial > bug.. > > > Is no one interested in the fact that the DST cache is leaking and > > eventually takes out machines? I've had virtually zero interest in > > this problem so far. > > I guess we should find a way to make it happen faster. > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ >
Data point... on my box, used as ed2k/bittorrent machine, the ip_dst_cache grows and shrinks quite fast; these two samples were ~3 minutes apart:
[root@donkey ~]# grep ip_dst /proc/slabinfo ip_dst_cache 998 1005 256 15 1 : tunables 120 60 0 : slabdata 67 67 0 [root@donkey ~]# wc -l /proc/net/rt_cache 926 /proc/net/rt_cache
[root@donkey ~]# grep ip_dst /proc/slabinfo ip_dst_cache 466 795 256 15 1 : tunables 120 60 0 : slabdata 53 53 0 [root@donkey ~]# wc -l /proc/net/rt_cache 443 /proc/net/rt_cache
and these were 2 seconds apart
[root@donkey ~]# wc -l /proc/net/rt_cache 737 /proc/net/rt_cache [root@donkey ~]# grep ip_dst /proc/slabinfo ip_dst_cache 795 795 256 15 1 : tunables 120 60 0 : slabdata 53 53 0
[root@donkey ~]# wc -l /proc/net/rt_cache 1023 /proc/net/rt_cache [root@donkey ~]# grep ip_dst /proc/slabinfo ip_dst_cache 1035 1035 256 15 1 : tunables 120 60 0 : slabdata 69 69 0
--alessandro
"And every dream, every, is just a dream after all"
(Heather Nova, "Paper Cup") - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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