* Jitter and latency benchmarks with netlink / nl80211 @ 2013-04-10 17:55 Luis R. Rodriguez 2013-04-10 17:59 ` Ben Greear 0 siblings, 1 reply; 4+ messages in thread From: Luis R. Rodriguez @ 2013-04-10 17:55 UTC (permalink / raw) To: linux-wireless Cc: linux-kernel@vger.kernel.org, Ben Greear, netdev@vger.kernel.org Curious if anyone has worked on latency and jitter benchmarks in using netlink, specifically with nl80211. Has anyone benchmarked this? Ben, have you? If not for nl80211 perhaps this has been done before for other netlink families? Luis ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Jitter and latency benchmarks with netlink / nl80211 2013-04-10 17:55 Jitter and latency benchmarks with netlink / nl80211 Luis R. Rodriguez @ 2013-04-10 17:59 ` Ben Greear 2013-04-10 18:05 ` Luis R. Rodriguez 0 siblings, 1 reply; 4+ messages in thread From: Ben Greear @ 2013-04-10 17:59 UTC (permalink / raw) To: Luis R. Rodriguez Cc: linux-wireless, linux-kernel@vger.kernel.org, netdev@vger.kernel.org On 04/10/2013 10:55 AM, Luis R. Rodriguez wrote: > Curious if anyone has worked on latency and jitter benchmarks in using > netlink, specifically with nl80211. Has anyone benchmarked this? Ben, > have you? If not for nl80211 perhaps this has been done before for > other netlink families? You mean timing related to netlink configuration/report requests? We have lots of ways to measure wifi packet throughput latencies and jitter (to/from userspace and/or to/from pktgen), but it doesn't use netlink.... Thanks, Ben -- Ben Greear <greearb@candelatech.com> Candela Technologies Inc http://www.candelatech.com ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Jitter and latency benchmarks with netlink / nl80211 2013-04-10 17:59 ` Ben Greear @ 2013-04-10 18:05 ` Luis R. Rodriguez 2013-04-10 18:10 ` Ben Greear 0 siblings, 1 reply; 4+ messages in thread From: Luis R. Rodriguez @ 2013-04-10 18:05 UTC (permalink / raw) To: Ben Greear Cc: linux-wireless, linux-kernel@vger.kernel.org, netdev@vger.kernel.org On Wed, Apr 10, 2013 at 10:59 AM, Ben Greear <greearb@candelatech.com> wrote: > On 04/10/2013 10:55 AM, Luis R. Rodriguez wrote: >> >> Curious if anyone has worked on latency and jitter benchmarks in using >> netlink, specifically with nl80211. Has anyone benchmarked this? Ben, >> have you? If not for nl80211 perhaps this has been done before for >> other netlink families? > > > You mean timing related to netlink configuration/report requests? Yes. > We have lots of ways to measure wifi packet throughput latencies > and jitter (to/from userspace and/or to/from pktgen), but it doesn't use > netlink.... Not looking for latency / jitter for 802.11, but for the core nl80211 messages. Luis ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Jitter and latency benchmarks with netlink / nl80211 2013-04-10 18:05 ` Luis R. Rodriguez @ 2013-04-10 18:10 ` Ben Greear 0 siblings, 0 replies; 4+ messages in thread From: Ben Greear @ 2013-04-10 18:10 UTC (permalink / raw) To: Luis R. Rodriguez Cc: linux-wireless, linux-kernel@vger.kernel.org, netdev@vger.kernel.org On 04/10/2013 11:05 AM, Luis R. Rodriguez wrote: > On Wed, Apr 10, 2013 at 10:59 AM, Ben Greear <greearb@candelatech.com> wrote: >> On 04/10/2013 10:55 AM, Luis R. Rodriguez wrote: >>> >>> Curious if anyone has worked on latency and jitter benchmarks in using >>> netlink, specifically with nl80211. Has anyone benchmarked this? Ben, >>> have you? If not for nl80211 perhaps this has been done before for >>> other netlink families? >> >> >> You mean timing related to netlink configuration/report requests? > > Yes. No, I haven't bothered to do this... The way we use netlink is mostly asynchronous..ie we just listen for events and process them as they come in. Most of our configuration would be driven through 'iw', 'wpa_supplicant', 'ip', etc, and much of our stats gathering is through the ethool get-stats API. I would imagine any latency would be highly dependent on other applications taking RTNL (for instance, creating/deleting lots of virtual stations, mac-vlans, ip-address changes, etc). Thanks, Ben -- Ben Greear <greearb@candelatech.com> Candela Technologies Inc http://www.candelatech.com ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2013-04-10 18:10 UTC | newest] Thread overview: 4+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2013-04-10 17:55 Jitter and latency benchmarks with netlink / nl80211 Luis R. Rodriguez 2013-04-10 17:59 ` Ben Greear 2013-04-10 18:05 ` Luis R. Rodriguez 2013-04-10 18:10 ` Ben Greear
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