From: Patrick McHardy <kaber@trash.net>
To: didier <did447@gmail.com>
Cc: netdev@vger.kernel.org
Subject: Re: VLAN GARP triggers a lot of timers if linux compiled with VLAN_8021Q_GVRP
Date: Wed, 29 Sep 2010 11:22:51 +0200 [thread overview]
Message-ID: <4CA3056B.6010901@trash.net> (raw)
In-Reply-To: <AANLkTinZ_6+PzAHHc5vaY+H2iX_pf4vsdNsnZ2_N7EDf@mail.gmail.com>
Am 29.09.2010 02:35, schrieb didier:
> Hi,
>
> In my understanding GARP is using a periodic timer but in net/802/garp.c:
>
> garp_join_timer_arm()
>
> delay = (u64)msecs_to_jiffies(garp_join_time)* net_random() >> 32;
> mod_timer(&app->join_timer, jiffies +delay)
>
> Isn't this stuff triggering a *lot* of events?
Yeah, something around 5-10 timers per second IIRC. There was an RFC
patch a while ago to only schedule the timer on-demand, I'll see
whether I can find it again.
next prev parent reply other threads:[~2010-09-29 9:23 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-29 0:35 VLAN GARP triggers a lot of timers if linux compiled with VLAN_8021Q_GVRP didier
2010-09-29 9:22 ` Patrick McHardy [this message]
2010-09-29 11:02 ` didier
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