All of lore.kernel.org
 help / color / mirror / Atom feed
From: "David S. Miller" <davem@redhat.com>
To: alan@lxorguk.ukuu.org.uk
Cc: matts@ksu.edu, shemminger@osdl.org, linux-kernel@vger.kernel.org
Subject: Re: 64 bit netdev stats counter
Date: Fri, 12 Jul 2002 15:06:07 -0700 (PDT)	[thread overview]
Message-ID: <20020712.150607.35506145.davem@redhat.com> (raw)
In-Reply-To: <1026516053.9958.33.camel@irongate.swansea.linux.org.uk>

   From: Alan Cox <alan@lxorguk.ukuu.org.uk>
   Date: 13 Jul 2002 00:20:53 +0100

   gcc will output
   
   		increment low 32bit
   		if zero
   			increment high
   
   Which means we can rapidly get 2^32 out of sync
   
True and this equals the "fix" suggested C code involving
two 32-bit counters that the original author posted :-)

So this makes both cases equally wrong.

  reply	other threads:[~2002-07-12 22:14 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1026503694.26819.4.camel@dell_ss3.pdx.osdl.net>
2002-07-12 22:02 ` 64 bit netdev stats counter Matt Stegman
2002-07-12 21:58   ` David S. Miller
2002-07-12 23:20     ` Alan Cox
2002-07-12 22:06       ` David S. Miller [this message]
2002-07-12 22:27         ` Andrew Morton
2002-07-12 22:28           ` David S. Miller
2002-07-12 22:31       ` Chris Friesen
2002-07-13  2:18         ` Alan Cox
2002-07-13  0:50     ` kuznet
2002-07-12 19:12 Matt Stegman

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20020712.150607.35506145.davem@redhat.com \
    --to=davem@redhat.com \
    --cc=alan@lxorguk.ukuu.org.uk \
    --cc=linux-kernel@vger.kernel.org \
    --cc=matts@ksu.edu \
    --cc=shemminger@osdl.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.