From: Ben Greear <greearb@candelatech.com>
To: ralph+d@istop.com
Cc: "David S. Miller" <davem@redhat.com>,
"Robert.Olsson@data.slu.se" <Robert.Olsson@data.slu.se>,
"hadi@shell.cyberus.ca" <hadi@shell.cyberus.ca>,
"xerox@foonet.net" <xerox@foonet.net>,
"sim@netnation.com" <sim@netnation.com>,
"fw@deneb.enyo.de" <fw@deneb.enyo.de>,
"netdev@oss.sgi.com" <netdev@oss.sgi.com>,
"linux-net@vger.kernel.org" <linux-net@vger.kernel.org>
Subject: Re: Route cache performance under stress
Date: Tue, 10 Jun 2003 17:51:57 -0700 [thread overview]
Message-ID: <3EE67D2D.80608@candelatech.com> (raw)
In-Reply-To: <Pine.LNX.4.51.0306101956520.7801@ns.istop.com>
Ralph Doncaster wrote:
> On Tue, 10 Jun 2003, David S. Miller wrote:
>
>
>> From: Ralph Doncaster <ralph@istop.com>
>> What's the do_gettimeofday for?
>>
>>Every packet records a timestamp.
>
>
> I'm not aware of anything in IP routing that requires a timestamp for
> every packet. To me it sounds like we could rip that out too.
>
> -Ralph
>
Maybe as a configurable option, since it would make tcpdump less useful.
Seems like we could kludge it up so that we used the TSC (or whatever that
really fast hardware clock is) to provide some relative stamp that could be
converted to a time_val later?
It does seem a bit wasteful to do the gettimeofday when most of the time
the result is ignored.
(Or, are there things other than tcpdump that need the gettimeofday stamp?)
Ben
--
Ben Greear <greearb@candelatech.com> <Ben_Greear AT excite.com>
President of Candela Technologies Inc http://www.candelatech.com
ScryMUD: http://scry.wanfear.com http://scry.wanfear.com/~greear
next prev parent reply other threads:[~2003-06-11 0:51 UTC|newest]
Thread overview: 217+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <87d6iit4g7.fsf@deneb.enyo.de>
[not found] ` <20030517.150933.74723581.davem@redhat.com>
[not found] ` <87iss87gqd.fsf@deneb.enyo.de>
2003-05-18 9:31 ` Route cache performance under stress David S. Miller
2003-05-19 17:36 ` Jamal Hadi
2003-05-19 19:18 ` Ralph Doncaster
2003-05-19 22:37 ` Jamal Hadi
2003-05-20 1:10 ` Simon Kirby
2003-05-20 1:14 ` David S. Miller
2003-05-20 1:23 ` Jamal Hadi
2003-05-20 1:24 ` David S. Miller
2003-05-20 2:13 ` Jamal Hadi
2003-05-20 5:01 ` Pekka Savola
2003-05-20 11:47 ` Jamal Hadi
2003-05-20 11:55 ` Pekka Savola
2003-05-20 6:46 ` David S. Miller
2003-05-20 12:04 ` Jamal Hadi
2003-05-21 0:36 ` David S. Miller
2003-05-21 13:03 ` Jamal Hadi
2003-05-23 5:42 ` David S. Miller
2003-05-22 8:40 ` Simon Kirby
2003-05-22 8:58 ` David S. Miller
2003-05-22 10:40 ` David S. Miller
2003-05-22 11:15 ` Martin Josefsson
2003-05-23 1:00 ` David S. Miller
2003-05-23 1:01 ` David S. Miller
2003-05-23 8:21 ` Andi Kleen
2003-05-23 8:22 ` David S. Miller
2003-05-23 9:03 ` Andi Kleen
2003-05-23 9:59 ` David S. Miller
2003-05-24 0:41 ` Andrew Morton
2003-05-26 2:29 ` David S. Miller
2003-05-22 11:44 ` Simon Kirby
2003-05-22 13:03 ` Martin Josefsson
2003-05-23 0:55 ` David S. Miller
2003-05-22 22:33 ` David S. Miller
2003-05-29 20:51 ` Simon Kirby
2003-06-02 10:58 ` Robert Olsson
2003-06-02 15:18 ` Simon Kirby
2003-06-02 16:36 ` Robert Olsson
2003-06-02 18:05 ` Simon Kirby
2003-06-09 17:21 ` David S. Miller
2003-06-09 17:19 ` David S. Miller
2003-05-23 0:59 ` David S. Miller
2003-05-26 7:18 ` Florian Weimer
2003-05-26 7:29 ` David S. Miller
2003-05-26 9:34 ` Florian Weimer
2003-05-27 6:32 ` David S. Miller
2003-06-08 11:39 ` Florian Weimer
2003-06-08 12:05 ` David S. Miller
2003-06-08 13:10 ` Florian Weimer
2003-06-08 23:49 ` Simon Kirby
2003-06-08 23:55 ` CIT/Paul
2003-06-09 3:15 ` Jamal Hadi
2003-06-09 5:27 ` CIT/Paul
2003-06-09 5:58 ` David S. Miller
2003-06-09 6:28 ` CIT/Paul
2003-06-09 6:28 ` David S. Miller
2003-06-09 16:23 ` Stephen Hemminger
2003-06-09 16:37 ` David S. Miller
2003-06-09 7:13 ` Simon Kirby
2003-06-09 8:10 ` CIT/Paul
2003-06-09 8:27 ` Simon Kirby
2003-06-09 19:38 ` CIT/Paul
2003-06-09 21:30 ` David S. Miller
2003-06-09 22:19 ` Simon Kirby
2003-06-09 22:54 ` Robert Olsson
2003-06-13 6:21 ` David S. Miller
2003-06-13 10:40 ` Robert Olsson
2003-06-15 6:36 ` David S. Miller
2003-06-17 17:03 ` Robert Olsson
2003-06-09 22:56 ` CIT/Paul
2003-06-09 23:05 ` David S. Miller
2003-06-10 13:41 ` Robert Olsson
2003-06-10 0:03 ` Jamal Hadi
2003-06-10 0:32 ` Ralph Doncaster
2003-06-10 1:15 ` Jamal Hadi
2003-06-10 2:45 ` Ralph Doncaster
2003-06-10 3:23 ` Ben Greear
2003-06-10 3:41 ` Ralph Doncaster
2003-06-10 18:10 ` Ralph Doncaster
2003-06-10 18:21 ` Ben Greear
2003-06-10 4:34 ` Simon Kirby
2003-06-10 11:01 ` Jamal Hadi
2003-06-10 11:28 ` Jamal Hadi
2003-06-10 13:18 ` Ralph Doncaster
2003-06-10 16:10 ` David S. Miller
2003-06-10 10:53 ` Jamal Hadi
2003-06-10 11:41 ` chas williams
2003-06-10 16:27 ` David S. Miller
2003-06-10 16:57 ` chas williams
2003-06-10 11:41 ` Pekka Savola
2003-06-10 11:58 ` John S. Denker
2003-06-10 12:12 ` Jamal Hadi
2003-06-10 16:33 ` David S. Miller
2003-06-10 12:07 ` Jamal Hadi
2003-06-10 15:29 ` Ralph Doncaster
2003-06-11 19:48 ` Florian Weimer
2003-06-11 19:40 ` CIT/Paul
2003-06-11 21:09 ` Florian Weimer
2003-06-10 13:10 ` Ralph Doncaster
2003-06-10 13:36 ` Jamal Hadi
2003-06-10 14:03 ` Ralph Doncaster
2003-06-10 16:38 ` David S. Miller
2003-06-10 16:39 ` David S. Miller
2003-06-10 18:41 ` Florian Weimer
2003-06-11 11:47 ` Was (Re: " Jamal Hadi
2003-06-11 18:41 ` Real World Routers 8-) Florian Weimer
2003-06-10 15:53 ` Route cache performance under stress David S. Miller
2003-06-10 16:15 ` 3c59x (was Route cache performance under stress) Bogdan Costescu
2003-06-10 16:20 ` Andi Kleen
2003-06-10 16:23 ` Jeff Garzik
2003-06-10 17:02 ` 3c59x David S. Miller
2003-06-10 17:16 ` 3c59x Jeff Garzik
2003-06-10 17:14 ` 3c59x David S. Miller
2003-06-10 17:25 ` 3c59x Jeff Garzik
2003-06-10 17:30 ` 3c59x David S. Miller
2003-06-10 19:20 ` 3c59x Jeff Garzik
2003-06-10 19:21 ` 3c59x David S. Miller
2003-06-10 17:18 ` 3c59x Andi Kleen
2003-06-10 17:29 ` 3c59x chas williams
2003-06-10 17:31 ` 3c59x David S. Miller
2003-06-10 17:39 ` 3c59x chas williams
2003-06-10 17:43 ` 3c59x David S. Miller
2003-06-11 17:52 ` Route cache performance under stress Robert Olsson
2003-06-10 1:53 ` Simon Kirby
2003-06-10 3:18 ` Ralph Doncaster
2003-06-10 16:06 ` David S. Miller
2003-06-10 15:56 ` David S. Miller
2003-06-10 16:45 ` 3c59x (was Route cache performance under stress) Bogdan Costescu
2003-06-10 16:49 ` Andi Kleen
2003-06-11 9:54 ` Robert Olsson
2003-06-11 10:05 ` Andi Kleen
2003-06-11 10:38 ` Robert Olsson
2003-06-11 12:08 ` Jamal Hadi
2003-06-10 17:12 ` 3c59x David S. Miller
2003-06-10 17:19 ` Route cache performance under stress Ralph Doncaster
2003-06-10 15:49 ` David S. Miller
2003-06-10 17:33 ` Ralph Doncaster
2003-06-10 17:32 ` David S. Miller
2003-06-10 18:34 ` Robert Olsson
2003-06-10 18:57 ` David S. Miller
2003-06-10 19:53 ` Robert Olsson
2003-06-10 21:36 ` CIT/Paul
2003-06-10 21:39 ` Ralph Doncaster
2003-06-10 22:20 ` David S. Miller
2003-06-10 23:58 ` Ralph Doncaster
2003-06-10 23:57 ` David S. Miller
2003-06-11 0:41 ` Ralph Doncaster
2003-06-11 0:58 ` David S. Miller
2003-06-11 0:58 ` David S. Miller
2003-06-11 0:51 ` Ben Greear [this message]
2003-06-11 1:01 ` David S. Miller
2003-06-11 1:15 ` Ben Greear
2003-06-11 1:22 ` David S. Miller
2003-06-11 1:51 ` Ben Greear
2003-06-11 3:33 ` David S. Miller
2003-06-11 11:54 ` gettime: Was (Re: " Jamal Hadi
2003-06-11 12:08 ` Andi Kleen
2003-06-12 3:30 ` David S. Miller
2003-06-12 6:32 ` Ben Greear
2003-06-12 8:46 ` David S. Miller
2003-06-11 15:57 ` Ben Greear
2003-06-12 3:29 ` David S. Miller
2003-06-11 1:17 ` Ralph Doncaster
2003-06-11 1:23 ` David S. Miller
2003-06-11 7:28 ` Andi Kleen
2003-06-11 7:25 ` Andi Kleen
2003-06-11 17:40 ` Robert Olsson
2003-06-13 5:38 ` David S. Miller
2003-06-13 10:22 ` Robert Olsson
2003-06-13 17:15 ` Robert Olsson
2003-06-12 6:45 ` David S. Miller
2003-06-12 13:56 ` Robert Olsson
2003-06-12 21:35 ` David S. Miller
2003-06-13 10:50 ` Robert Olsson
2003-06-10 0:56 ` Ralph Doncaster
2003-06-09 11:38 ` Jamal Hadi
2003-06-09 11:55 ` David S. Miller
2003-06-09 12:18 ` Jamal Hadi
2003-06-09 12:32 ` David S. Miller
2003-06-09 13:22 ` Jamal Hadi
2003-06-09 13:22 ` David S. Miller
2003-06-09 8:56 ` David S. Miller
2003-06-09 22:39 ` Robert Olsson
2003-06-09 6:25 ` David S. Miller
2003-06-09 6:59 ` Simon Kirby
2003-06-09 7:03 ` David S. Miller
2003-06-09 13:04 ` Ralph Doncaster
2003-06-09 13:26 ` Jamal Hadi
2003-06-09 5:44 ` David S. Miller
2003-06-09 5:51 ` CIT/Paul
2003-06-09 6:03 ` David S. Miller
2003-06-09 6:52 ` Simon Kirby
2003-06-09 6:56 ` David S. Miller
2003-06-09 7:36 ` Simon Kirby
2003-06-09 8:18 ` Simon Kirby
2003-06-09 8:22 ` David S. Miller
2003-06-09 8:31 ` Simon Kirby
2003-06-09 9:01 ` David S. Miller
2003-06-09 9:47 ` Andi Kleen
2003-06-09 10:03 ` David S. Miller
2003-06-09 10:13 ` Andi Kleen
2003-06-09 10:13 ` David S. Miller
2003-06-09 10:40 ` YOSHIFUJI Hideaki / 吉藤英明
2003-06-09 10:40 ` David S. Miller
2003-06-09 14:14 ` David S. Miller
2003-06-09 6:47 ` Simon Kirby
2003-06-09 6:49 ` David S. Miller
2003-06-09 13:28 ` Ralph Doncaster
2003-06-09 16:30 ` Simon Kirby
2003-06-17 20:58 ` Florian Weimer
2003-06-09 5:38 ` David S. Miller
2003-06-10 3:05 ` Steven Blake
2003-06-12 6:31 ` David S. Miller
2003-06-08 17:58 ` Pekka Savola
2003-05-21 0:09 ` Simon Kirby
2003-05-21 0:13 ` David S. Miller
2003-05-26 9:29 ` Florian Weimer
[not found] <8765pshpd4.fsf@deneb.enyo.de>
2003-04-05 18:17 ` Martin Josefsson
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