Message ID | 1475068995.28155.96.camel@edumazet-glaptop3.roam.corp.google.com |
---|---|
State | Accepted, archived |
Delegated to: | stephen hemminger |
Headers | show |
On Wed, 28 Sep 2016 06:23:15 -0700 Eric Dumazet <eric.dumazet@gmail.com> wrote: > From: Eric Dumazet <edumazet@google.com> > > In linux-4.9 fq packet scheduler got a new stat : > > unthrottle_latency in nano second units. > > Gives a good indication of system load or timer implementation > latencies. > > Signed-off-by: Eric Dumazet <edumazet@google.com> Applied to net-next (for 4.9)
diff --git a/include/linux/pkt_sched.h b/include/linux/pkt_sched.h index f8e39db..df7451d 100644 --- a/include/linux/pkt_sched.h +++ b/include/linux/pkt_sched.h @@ -811,7 +811,7 @@ struct tc_fq_qd_stats { __u32 flows; __u32 inactive_flows; __u32 throttled_flows; - __u32 pad; + __u32 unthrottle_latency_ns; }; /* Heavy-Hitter Filter */ diff --git a/tc/q_fq.c b/tc/q_fq.c index 90147a6..c9efbfc 100644 --- a/tc/q_fq.c +++ b/tc/q_fq.c @@ -312,6 +312,9 @@ static int fq_print_xstats(struct qdisc_util *qu, FILE *f, fprintf(f, ", %llu throttled", st->throttled); + if (st->unthrottle_latency_ns) + fprintf(f, ", %u ns latency", st->unthrottle_latency_ns); + if (st->flows_plimit) fprintf(f, ", %llu flows_plimit", st->flows_plimit);