From: "Michael Chan" <mchan@broadcom.com>
To: "David Miller" <davem@davemloft.net>
Cc: akpm@linux-foundation.org, netdev <netdev@vger.kernel.org>,
bugme-daemon@bugzilla.kernel.org, jesse.brandeburg@intel.com,
john.ronciak@intel.com, liblit@acm.org
Subject: Re: [Bugme-new] [Bug 10600] New: e1000 updates rx_bytes infrequently
Date: Mon, 05 May 2008 17:55:35 -0700 [thread overview]
Message-ID: <1210035335.7941.180.camel@dell> (raw)
In-Reply-To: <20080505.161806.267621711.davem@davemloft.net>
On Mon, 2008-05-05 at 16:18 -0700, David Miller wrote:
> Actually, the thing that matters is when ->get_stats() is called.
>
> So if a driver can trigger a statistics DMA update at ->get_stats()
> time, that's probably what it should do. But this could get
> expensive and make the "do DMA less often" optimization less useful.
>
>
The width of hardware counters may also be limited and so periodic
fetching or DMA may be needed to prevent overflow.
next prev parent reply other threads:[~2008-05-05 23:51 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <bug-10600-10286@http.bugzilla.kernel.org/>
2008-05-05 22:55 ` [Bugme-new] [Bug 10600] New: e1000 updates rx_bytes infrequently Andrew Morton
2008-05-05 23:18 ` David Miller
2008-05-05 23:55 ` Ben Liblit
2008-05-06 1:17 ` Michael Chan
2008-05-06 0:43 ` Krzysztof Oledzki
2008-05-06 1:55 ` Michael Chan
2008-05-06 1:24 ` Ben Liblit
2008-05-06 17:22 ` Brandeburg, Jesse
2008-05-06 20:49 ` Brandeburg, Jesse
2008-05-12 5:44 ` Ben Liblit
2008-05-12 6:18 ` David Miller
2008-05-12 6:26 ` Ben Liblit
2008-05-12 6:42 ` Ben Liblit
2008-05-06 0:55 ` Michael Chan [this message]
2008-05-05 23:53 ` David Miller
2008-05-05 23:38 ` Ben Liblit
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=1210035335.7941.180.camel@dell \
--to=mchan@broadcom.com \
--cc=akpm@linux-foundation.org \
--cc=bugme-daemon@bugzilla.kernel.org \
--cc=davem@davemloft.net \
--cc=jesse.brandeburg@intel.com \
--cc=john.ronciak@intel.com \
--cc=liblit@acm.org \
--cc=netdev@vger.kernel.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).