From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: James Cammarata <jimi@sngx.net>
Cc: Bill Fink <billfink@mindspring.com>,
linux-kernel@vger.kernel.org,
Linux Netdev List <netdev@vger.kernel.org>
Subject: Re: [PATCH] net: add ability to clear stats via ethtool - e1000/pcnet32
Date: Tue, 3 Jun 2008 15:46:02 +0100 [thread overview]
Message-ID: <20080603154602.01b10adb@core> (raw)
In-Reply-To: <48453909.4000301@sngx.net>
> Also, I'd like to point out that the "stepping on other peoples toes"
> argument is a bogus one, since most major network vendors include this
> ability, and it's not exactly a concern now.
I used to work in a large ISP - it was a huge concern then and was
enforced and managed by the less effective 'do you like your kneecaps'
approach to permissions.
Its basically impossible to write a correct non-racy application which
zeros kernel statistics and then measures the change, because you cannot
know another application did the same while you were running.
This is the most basic and blindingly obvious stuff. You should not be
able to zero the kernel stats just because you can't work perl.
Alan
next prev parent reply other threads:[~2008-06-03 14:46 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <482DA5B6.1020606@sngx.net>
2008-05-16 20:00 ` [PATCH updated] net: add ability to clear per-interface network statistics via procfs David Miller
2008-05-16 20:09 ` Rick Jones
2008-05-17 15:06 ` James Cammarata
[not found] ` <482DB46A.8020103@cosmosbay.com>
2008-05-16 20:03 ` David Miller
[not found] ` <482EF192.4070707@sngx.net>
2008-05-17 21:41 ` Eric Dumazet
2008-05-17 22:49 ` James Cammarata
2008-05-18 0:31 ` Ben Hutchings
2008-05-18 1:43 ` Patrick McHardy
2008-05-18 5:09 ` James Cammarata
2008-05-18 11:27 ` Ben Hutchings
2008-05-29 1:45 ` [PATCH] net: add ability to clear stats via ethtool - e1000/pcnet32 James Cammarata
2008-05-29 2:08 ` James Cammarata
2008-05-29 5:11 ` Andrew Morton
2008-05-29 12:34 ` James Cammarata
2008-05-29 14:45 ` Alan Cox
2008-05-29 17:15 ` James Cammarata
2008-05-29 20:50 ` David Miller
2008-05-29 21:18 ` James Cammarata
2008-05-30 19:12 ` Bill Fink
2008-05-30 22:14 ` Rick Jones
2008-05-31 1:09 ` Bill Fink
2008-05-31 2:41 ` Stephen Hemminger
2008-05-31 4:47 ` Bill Fink
2008-05-31 12:11 ` Alan Cox
2008-05-31 23:57 ` Bill Fink
2008-06-01 1:46 ` Ben Hutchings
2008-06-01 20:46 ` Bill Fink
2008-06-01 22:29 ` Ben Hutchings
2008-06-02 3:55 ` Bill Fink
2008-06-02 5:39 ` David Miller
2008-06-02 15:41 ` Bill Fink
2008-06-02 4:50 ` Glen Turner
2008-06-02 16:10 ` Bill Fink
2008-06-03 12:28 ` James Cammarata
2008-06-03 12:35 ` Ben Hutchings
2008-06-03 14:46 ` Alan Cox [this message]
2008-06-04 3:05 ` James Cammarata
2008-05-29 14:48 ` Chris Friesen
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