From: Eric Dumazet <eric.dumazet@gmail.com>
To: Alex Bligh <alex@alex.org.uk>
Cc: netdev@vger.kernel.org
Subject: Re: Scalability of interface creation and deletion
Date: Sat, 07 May 2011 20:42:29 +0200 [thread overview]
Message-ID: <1304793749.3207.26.camel@edumazet-laptop> (raw)
In-Reply-To: <1304793174.3207.22.camel@edumazet-laptop>
Here is my trace here for one device deletion on one 8 core machine
[ 800.447012] synchronize_rcu() in 15787 us
[ 800.455013] synchronize_rcu() in 7682 us
[ 800.464019] rcu_barrier() in 8487 us
Not that bad.
$ grep RCU .config
# RCU Subsystem
CONFIG_TREE_RCU=y
# CONFIG_PREEMPT_RCU is not set
CONFIG_RCU_TRACE=y
CONFIG_RCU_FANOUT=32
# CONFIG_RCU_FANOUT_EXACT is not set
# CONFIG_RCU_FAST_NO_HZ is not set
CONFIG_TREE_RCU_TRACE=y
next prev parent reply other threads:[~2011-05-07 18:42 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-07 11:08 Scalability of interface creation and deletion Alex Bligh
2011-05-07 12:22 ` Eric Dumazet
2011-05-07 15:26 ` Alex Bligh
2011-05-07 15:54 ` Eric Dumazet
2011-05-07 16:23 ` Ben Greear
2011-05-07 16:37 ` Eric Dumazet
2011-05-07 16:44 ` Ben Greear
2011-05-07 16:51 ` Eric Dumazet
2011-05-08 3:45 ` Ben Greear
2011-05-08 8:08 ` Alex Bligh
2011-05-09 21:46 ` Octavian Purdila
2011-05-07 16:26 ` Eric Dumazet
2011-05-07 18:24 ` Alex Bligh
2011-05-07 18:32 ` Eric Dumazet
2011-05-07 18:39 ` Eric Dumazet
2011-05-08 10:09 ` Alex Bligh
2011-05-07 18:42 ` Eric Dumazet [this message]
2011-05-07 18:50 ` Alex Bligh
2011-05-08 7:12 ` Eric Dumazet
2011-05-08 8:06 ` Alex Bligh
2011-05-08 9:35 ` Alex Bligh
2011-05-08 12:18 ` Alex Bligh
2011-05-08 12:50 ` Paul E. McKenney
2011-05-08 13:13 ` Alex Bligh
2011-05-08 13:44 ` Paul E. McKenney
2011-05-08 14:27 ` Alex Bligh
2011-05-08 14:47 ` Paul E. McKenney
2011-05-08 15:17 ` Alex Bligh
2011-05-08 15:48 ` Paul E. McKenney
2011-05-08 21:00 ` Eric Dumazet
2011-05-09 4:44 ` [PATCH] veth: use batched device unregister Eric Dumazet
2011-05-09 6:56 ` Michał Mirosław
2011-05-09 8:20 ` Eric Dumazet
2011-05-09 9:17 ` [PATCH net-next-2.6] net: use batched device unregister in veth and macvlan Eric Dumazet
2011-05-09 18:42 ` David Miller
2011-05-09 19:05 ` Eric Dumazet
2011-05-09 20:17 ` Eric Dumazet
2011-05-10 6:40 ` [PATCH net-2.6] vlan: fix GVRP at dismantle time Eric Dumazet
2011-05-10 19:23 ` David Miller
2011-05-09 7:45 ` [PATCH v2 net-next-2.6] veth: use batched device unregister Eric Dumazet
2011-05-09 9:22 ` Eric Dumazet
2011-05-09 5:37 ` Scalability of interface creation and deletion Alex Bligh
2011-05-09 6:37 ` Eric Dumazet
2011-05-09 7:11 ` Paul E. McKenney
2011-05-09 17:30 ` Jesse Gross
2011-05-08 12:44 ` Paul E. McKenney
2011-05-08 13:06 ` Alex Bligh
2011-05-08 13:14 ` Alex Bligh
2011-05-08 12:32 ` Paul E. McKenney
2011-05-07 18:51 ` Alex Bligh
2011-05-07 19:24 ` Eric Dumazet
2011-05-07 18:38 ` Alex Bligh
2011-05-07 18:44 ` Eric Dumazet
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