Re: route use?

Bernd Eckenfels (ecki@tapac.inka.de)
13 Jun 1996 23:07:17 GMT

Jon Lewis (jlewis@inorganic5.fdt.net) wrote:
: I've recently noticed that the use column in /proc/net/route doesn't seem
: to update as often as it did in 1.2.x. i.e.
:
: Kernel routing table
: Destination Gateway Genmask Flags MSS Window Use Iface
: localnet * 255.255.255.0 U 1500 0 38 eth0
: loopback * 255.0.0.0 U 3584 0 2 lo
: default fdt-gw.fdt.net * UG 1500 0 1 eth0

This is due to the new route cache in the socket code. The usage count only
shows cache misses (i.e. connects). I guess this an be changed in the kernel
to update the field as one is used in 1.2.x, but this will of course slow
down the IP-layer a few ticks.. hmm.. You can look into rt_cache, there are
some usage numbers, too.

Greetings
Bernd

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