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From: Eric Dumazet <erdnetdev@gmail.com>
To: Willy Tarreau <w@1wt.eu>
Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: Major network performance regression in 3.7
Date: Sun, 06 Jan 2013 10:51:16 -0800	[thread overview]
Message-ID: <1357498276.6919.547.camel@edumazet-glaptop> (raw)
In-Reply-To: <1357497809.6919.529.camel@edumazet-glaptop>


> 
> (sd->len is usually 4096, which is expected, but sd->total_len value is
> huge in your case, so we always set the flag in fs/splice.c)

I am testing :

       if (sd->len < sd->total_len && pipe->nrbufs > 1)
                more |= MSG_SENDPAGE_NOTLAST;

  reply	other threads:[~2013-01-06 18:51 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-01-05 21:49 Major network performance regression in 3.7 Willy Tarreau
2013-01-05 23:18 ` Eric Dumazet
2013-01-05 23:29   ` Willy Tarreau
2013-01-06  0:02     ` Eric Dumazet
2013-01-06  0:50       ` Willy Tarreau
2013-01-06  1:21         ` Eric Dumazet
2013-01-06  1:30           ` Willy Tarreau
2013-01-06  1:40             ` Eric Dumazet
2013-01-06  1:51               ` Eric Dumazet
2013-01-06  2:16                 ` Eric Dumazet
2013-01-06  2:18                   ` Willy Tarreau
2013-01-06  2:22                     ` Eric Dumazet
2013-01-06  2:32                       ` Willy Tarreau
2013-01-06  2:44                         ` Eric Dumazet
2013-01-06  2:52                   ` Willy Tarreau
2013-01-06  7:31                     ` [PATCH net-next] net: splice: avoid high order page splitting Eric Dumazet
2013-01-07  5:07                       ` David Miller
2013-01-06  7:35                     ` Major network performance regression in 3.7 Eric Dumazet
2013-01-06  9:24                       ` Willy Tarreau
2013-01-06 10:25                         ` Willy Tarreau
2013-01-06 11:46                           ` Romain Francoise
2013-01-06 11:53                             ` Willy Tarreau
2013-01-06 12:01                           ` Willy Tarreau
2013-01-06 14:59                         ` Eric Dumazet
2013-01-06 15:51                           ` Willy Tarreau
2013-01-06 16:39                             ` Eric Dumazet
2013-01-06 16:44                               ` Willy Tarreau
2013-01-06 17:10                                 ` Eric Dumazet
2013-01-06 17:35                                   ` Willy Tarreau
2013-01-06 18:39                                     ` Eric Dumazet
2013-01-06 18:43                                       ` Eric Dumazet
2013-01-06 18:51                                         ` Eric Dumazet [this message]
2013-01-06 19:00                                           ` Eric Dumazet
2013-01-06 19:34                                             ` Willy Tarreau
2013-01-06 19:39                                               ` Eric Dumazet
2013-01-06 19:53                                                 ` Willy Tarreau
2013-01-07  4:21                                                   ` [PATCH] tcp: fix MSG_SENDPAGE_NOTLAST logic Eric Dumazet
2013-01-07  4:59                                                     ` David Miller
2013-01-06 21:49                                               ` Major network performance regression in 3.7 John Stoffel
2013-01-06 21:52                                                 ` Willy Tarreau
2013-01-06 21:55                                                   ` John Stoffel

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