From: Thomas Graf <tgraf@infradead.org>
To: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>,
David Miller <davem@davemloft.net>,
rick.jones2@hp.com, therbert@google.com, wsommerfeld@google.com,
daniel.baluta@gmail.com, netdev@vger.kernel.org
Subject: Re: SO_REUSEPORT - can it be done in kernel?
Date: Tue, 1 Mar 2011 09:22:35 -0500 [thread overview]
Message-ID: <20110301142235.GA10761@canuck.infradead.org> (raw)
In-Reply-To: <1298988419.3284.107.camel@edumazet-laptop>
On Tue, Mar 01, 2011 at 03:06:59PM +0100, Eric Dumazet wrote:
> Would be nice to cpu affine named to _not_ run on CPU11, just to
> specialize it for TX completions and have softirq time percentage and
> "perf top -C 11 " results
----------------------------------------------------------------------------------------------------------------------
PerfTop: 995 irqs/sec kernel:97.7% exact: 0.0% [1000Hz cpu-clock-msecs], (all, CPU: 11)
----------------------------------------------------------------------------------------------------------------------
samples pcnt function DSO
_______ _____ ___________________________ ___________________________________________________________
335.00 23.3% intel_idle /lib/modules/2.6.38-rc5+/build/vmlinux
253.00 17.6% be_tx_compl_process /lib/modules/2.6.38-rc5+/kernel/drivers/net/benet/be2net.ko
177.00 12.3% skb_release_data /lib/modules/2.6.38-rc5+/build/vmlinux
132.00 9.2% kfree /lib/modules/2.6.38-rc5+/build/vmlinux
127.00 8.8% kfree_skb /lib/modules/2.6.38-rc5+/build/vmlinux
105.00 7.3% be_poll_tx_mcc /lib/modules/2.6.38-rc5+/kernel/drivers/net/benet/be2net.ko
99.00 6.9% kmem_cache_free /lib/modules/2.6.38-rc5+/build/vmlinux
36.00 2.5% __do_softirq /lib/modules/2.6.38-rc5+/build/vmlinux
20.00 1.4% _raw_spin_unlock_irqrestore /lib/modules/2.6.38-rc5+/build/vmlinux
19.00 1.3% skb_release_head_state /lib/modules/2.6.38-rc5+/build/vmlinux
13.00 0.9% unmap_tx_frag /lib/modules/2.6.38-rc5+/kernel/drivers/net/benet/be2net.ko
11.00 0.8% rb_next /usr/bin/perf
10.00 0.7% dso__find_symbol /usr/bin/perf
9.00 0.6% is_swiotlb_buffer /lib/modules/2.6.38-rc5+/build/vmlinux
9.00 0.6% __strcmp_sse42 /lib64/libc-2.12.so
8.00 0.6% __kfree_skb /lib/modules/2.6.38-rc5+/build/vmlinux
8.00 0.6% __strstr_sse42 /lib64/libc-2.12.so
6.00 0.4% _int_malloc /lib64/libc-2.12.so
next prev parent reply other threads:[~2011-03-01 14:22 UTC|newest]
Thread overview: 91+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-27 10:07 SO_REUSEPORT - can it be done in kernel? Daniel Baluta
2011-01-27 15:55 ` Bill Sommerfeld
2011-01-27 21:32 ` Tom Herbert
2011-02-25 12:56 ` Thomas Graf
2011-02-25 19:18 ` Rick Jones
2011-02-25 19:20 ` David Miller
2011-02-26 0:57 ` Herbert Xu
2011-02-26 2:12 ` David Miller
2011-02-26 2:48 ` Herbert Xu
2011-02-26 3:07 ` David Miller
2011-02-26 3:11 ` Herbert Xu
2011-02-26 7:31 ` Eric Dumazet
2011-02-26 7:46 ` David Miller
2011-02-27 11:02 ` Thomas Graf
2011-02-27 11:06 ` Herbert Xu
2011-02-28 3:45 ` Tom Herbert
2011-02-28 4:26 ` Herbert Xu
2011-02-28 11:36 ` Herbert Xu
2011-02-28 13:32 ` Eric Dumazet
2011-02-28 14:13 ` Herbert Xu
2011-02-28 14:22 ` Eric Dumazet
2011-02-28 14:25 ` Herbert Xu
2011-02-28 14:53 ` Eric Dumazet
2011-02-28 15:01 ` Thomas Graf
2011-02-28 14:13 ` Thomas Graf
2011-02-28 16:22 ` Eric Dumazet
2011-02-28 16:37 ` Thomas Graf
2011-02-28 17:07 ` Eric Dumazet
2011-03-01 10:19 ` Thomas Graf
2011-03-01 10:33 ` Eric Dumazet
2011-03-01 11:07 ` Thomas Graf
2011-03-01 11:13 ` Eric Dumazet
2011-03-01 11:27 ` Thomas Graf
2011-03-01 11:45 ` Eric Dumazet
2011-03-01 11:53 ` Herbert Xu
2011-03-01 12:32 ` Herbert Xu
2011-03-01 13:04 ` Eric Dumazet
2011-03-01 13:11 ` Herbert Xu
2011-03-01 13:03 ` Eric Dumazet
2011-03-01 13:18 ` Herbert Xu
2011-03-01 13:52 ` Eric Dumazet
2011-03-01 13:58 ` Herbert Xu
2011-03-01 16:31 ` Eric Dumazet
2011-03-02 0:23 ` Herbert Xu
2011-03-02 2:00 ` Eric Dumazet
2011-03-02 2:39 ` Herbert Xu
2011-03-02 2:56 ` Eric Dumazet
2011-03-02 3:09 ` Herbert Xu
2011-03-02 3:44 ` Eric Dumazet
2011-03-02 7:12 ` Tom Herbert
2011-03-02 7:31 ` Herbert Xu
2011-03-02 8:04 ` Eric Dumazet
2011-03-02 8:07 ` Herbert Xu
2011-03-02 8:24 ` Eric Dumazet
2011-03-01 12:01 ` Thomas Graf
2011-03-01 12:15 ` Herbert Xu
2011-03-01 13:27 ` Herbert Xu
2011-03-01 12:18 ` Thomas Graf
2011-03-01 12:19 ` Herbert Xu
2011-03-01 13:50 ` Thomas Graf
2011-03-01 14:06 ` Eric Dumazet
2011-03-01 14:22 ` Thomas Graf [this message]
2011-03-01 14:30 ` Thomas Graf
2011-03-01 14:52 ` Eric Dumazet
2011-03-01 15:07 ` Thomas Graf
2011-03-01 5:33 ` Eric Dumazet
2011-03-01 12:35 ` Herbert Xu
2011-03-01 12:36 ` [PATCH 1/5] inet: Remove unused sk_sndmsg_* from UFO Herbert Xu
2011-03-01 12:36 ` [PATCH 2/5] inet: Remove explicit write references to sk/inet in ip_append_data Herbert Xu
2011-03-02 6:15 ` inet: Replace left-over references to inet->cork Herbert Xu
2011-03-02 7:01 ` David Miller
2011-03-01 12:36 ` [PATCH 3/5] inet: Add ip_make_skb and ip_finish_skb Herbert Xu
2011-03-01 12:36 ` [PATCH 4/5] udp: Switch to ip_finish_skb Herbert Xu
2011-03-01 12:36 ` [PATCH 5/5] udp: Add lockless transmit path Herbert Xu
2011-03-01 16:43 ` SO_REUSEPORT - can it be done in kernel? Eric Dumazet
2011-03-01 20:36 ` David Miller
2011-02-28 11:41 ` [PATCH 1/5] net: Remove unused sk_sndmsg_* from UFO Herbert Xu
2011-03-01 5:31 ` Eric Dumazet
2011-02-28 11:41 ` [PATCH 2/5] net: Remove explicit write references to sk/inet in ip_append_data Herbert Xu
2011-03-01 5:31 ` Eric Dumazet
2011-02-28 11:41 ` [PATCH 3/5] inet: Add ip_make_skb and ip_send_skb Herbert Xu
2011-03-01 5:31 ` Eric Dumazet
2011-02-28 11:41 ` [PATCH 4/5] udp: Add lockless transmit path Herbert Xu
2011-02-28 11:41 ` Herbert Xu
2011-03-01 5:30 ` Eric Dumazet
2011-02-25 19:21 ` SO_REUSEPORT - can it be done in kernel? Eric Dumazet
2011-02-25 22:48 ` Thomas Graf
2011-02-25 23:15 ` Rick Jones
2011-02-25 19:51 ` Tom Herbert
2011-02-25 22:58 ` Thomas Graf
2011-02-25 23:33 ` Bill Sommerfeld
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