From: Eric Dumazet <eric.dumazet@gmail.com>
To: Amir Vadai <amirv@mellanox.com>
Cc: Or Gerlitz <gerlitz.or@gmail.com>,
Alexei Starovoitov <ast@plumgrid.com>,
"David S. Miller" <davem@davemloft.net>,
Jesper Dangaard Brouer <brouer@redhat.com>,
Eric Dumazet <edumazet@google.com>,
John Fastabend <john.r.fastabend@intel.com>,
Linux Netdev List <netdev@vger.kernel.org>,
Or Gerlitz <or.gerlitz@gmail.com>,
amira@mellanox.com, idos@mellanox.com,
Yevgeny Petrilin <yevgenyp@mellanox.com>,
eyalpe@mellanox.com
Subject: Re: [PATCH v2 net-next] mlx4: optimize xmit path
Date: Thu, 02 Oct 2014 05:07:00 -0700 [thread overview]
Message-ID: <1412251620.16704.88.camel@edumazet-glaptop2.roam.corp.google.com> (raw)
In-Reply-To: <542D3D5F.5090900@mellanox.com>
On Thu, 2014-10-02 at 14:56 +0300, Amir Vadai wrote:
> After making sure the sender thread and the TX completions are not on
> the same CPU, I see the expected improvement. +0.5Mpps with tx
> optimizations.
I got 40% here.
Hmm... both cpus are on the same socket, right ?
TX coalescing is properly setup ?
What interrupt rate do you get ?
You can take a look at where cycles are spent
perf record -a -g sleep 5
perf report
next prev parent reply other threads:[~2014-10-02 12:07 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-26 0:46 [RFC PATCH net-next] net: pktgen: packet bursting via skb->xmit_more Alexei Starovoitov
2014-09-26 1:20 ` Eric Dumazet
2014-09-26 7:42 ` Eric Dumazet
2014-09-26 15:44 ` Eric Dumazet
2014-09-26 15:59 ` Alexei Starovoitov
2014-09-26 16:06 ` Eric Dumazet
2014-09-27 20:43 ` Eric Dumazet
2014-09-27 20:55 ` Or Gerlitz
2014-09-27 21:30 ` Eric Dumazet
2014-09-27 22:56 ` [PATCH net-next] mlx4: optimize xmit path Eric Dumazet
2014-09-27 23:44 ` Hannes Frederic Sowa
2014-09-28 0:05 ` Eric Dumazet
2014-09-28 0:22 ` Hannes Frederic Sowa
2014-09-28 12:42 ` Eric Dumazet
2014-09-28 14:35 ` Or Gerlitz
2014-09-28 16:03 ` Eric Dumazet
2014-09-29 4:19 ` [PATCH v2 " Eric Dumazet
2014-09-30 12:01 ` Amir Vadai
2014-09-30 12:11 ` Eric Dumazet
2014-10-02 4:35 ` Eric Dumazet
2014-10-02 8:03 ` Amir Vadai
2014-10-02 8:29 ` Jesper Dangaard Brouer
2014-10-02 8:57 ` Amir Vadai
2014-10-02 11:45 ` Eric Dumazet
2014-10-02 11:56 ` Amir Vadai
2014-10-02 12:07 ` Eric Dumazet [this message]
2014-10-02 12:45 ` Amir Vadai
2014-09-26 8:05 ` [RFC PATCH net-next] net: pktgen: packet bursting via skb->xmit_more Jesper Dangaard Brouer
2014-09-27 20:59 ` Or Gerlitz
2014-09-29 17:46 [PATCH v2 net-next] mlx4: optimize xmit path Alexei Starovoitov
2014-09-29 18:08 ` Eric Dumazet
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