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List:       e1000-devel
Subject:    Re: [E1000-devel] [RFC 1/2] igb: statistic optimization
From:       Stephen Hemminger <shemminger () vyatta ! com>
Date:       2008-10-22 17:54:58
Message-ID: 20081022105458.59814157 () extreme
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On Wed, 22 Oct 2008 10:37:44 -0700
Rick Jones <rick.jones2@hp.com> wrote:

> > I don't think you want to put this in the code that can be called directly 
> > from IOCTL from userspace.  This function can take a lot of cycles and 
> > some silly applications like gkrellm call it quite frequently.  The 
> > update_stats function will be called as part of the watchdog anyway, and 
> > you already got the interesting stats for realtime with the tx and rx 
> > bytes/packets.
> 
> On the flip side aren't there "out of phase" issues with pulling stats 
> based on a timer vs something like a netstat -i 1 command?
> 
> rick jones

The only stats pulled are the error stats, so this is probably okay.

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