* David Miller <[email protected]> wrote:
> > gkrellm-5977 0..s. 0us : cond_resched_softirq
> > (established_get_next)
>
> So it's not the 3c59x bug :-)
>
> If you have a lot of sockets, there is not way to make the performance
> of dumping /proc/net/tcp not suck, use the netlink socket dumping
> which is:
>
> 1) more efficient even for full dumps
> 2) allows filtering for the best possible performance
hm, there is a cond_resched_softirq() for every line output so the
actual latency from this alone shouldnt be that bad. While /proc/net/tcp
has a quadratic algorithm, the per-line latency is O(N), which shouldnt
show up on the radar.
but note that Ananitya is running a fast system as a stock desktop
system browsing the web, so there shouldnt be tons of sockets. So the
latency isnt caused by /proc/net/tcp itself, but there does seem to be
some networking related anomaly.
we'll hopefully be able to tell this more specifically from the re-done
trace.
Ingo
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