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| author | Eric Dumazet <edumazet@google.com> | 2013-06-06 08:43:22 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-06-11 02:51:03 -0700 |
| commit | 45203a3b380cee28f570475c0d28c169f908c209 (patch) | |
| tree | 9d9b00da9accbc0ea01c91c206cb86a2f9dd7609 /net/sched/sch_drr.c | |
| parent | b41abb42bf62a85a32c41dab873220598a6ee266 (diff) | |
| download | linux-45203a3b380cee28f570475c0d28c169f908c209.tar.bz2 | |
net_sched: add 64bit rate estimators
struct gnet_stats_rate_est contains u32 fields, so the bytes per second
field can wrap at 34360Mbit.
Add a new gnet_stats_rate_est64 structure to get 64bit bps/pps fields,
and switch the kernel to use this structure natively.
This structure is dumped to user space as a new attribute :
TCA_STATS_RATE_EST64
Old tc command will now display the capped bps (to 34360Mbit), instead
of wrapped values, and updated tc command will display correct
information.
Old tc command output, after patch :
eric:~# tc -s -d qd sh dev lo
qdisc pfifo 8001: root refcnt 2 limit 1000p
Sent 80868245400 bytes 1978837 pkt (dropped 0, overlimits 0 requeues 0)
rate 34360Mbit 189696pps backlog 0b 0p requeues 0
This patch carefully reorganizes "struct Qdisc" layout to get optimal
performance on SMP.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/sch_drr.c')
| -rw-r--r-- | net/sched/sch_drr.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/sched/sch_drr.c b/net/sched/sch_drr.c index 759b308d1a8d..8302717ea303 100644 --- a/net/sched/sch_drr.c +++ b/net/sched/sch_drr.c @@ -25,7 +25,7 @@ struct drr_class { struct gnet_stats_basic_packed bstats; struct gnet_stats_queue qstats; - struct gnet_stats_rate_est rate_est; + struct gnet_stats_rate_est64 rate_est; struct list_head alist; struct Qdisc *qdisc; |