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From: "Ioannis C Avramopoulos (iavramop@Princeton.EDU)" <iavramop@Princeton.EDU>
To: lartc@vger.kernel.org
Subject: [LARTC] Determing the pfifo backlog
Date: Sun, 23 Jan 2005 05:22:09 +0000	[thread overview]
Message-ID: <3d41a0ab2ae2.41f2ee31@Princeton.EDU> (raw)


Greetings --

in the "Linux Advanced Routing & Traffic Control HOWTO"
chapter 14.1 on bfifo/pfifo it says that:
"you can use this qdisc to determine the backlog on your interface".
But it does not say exactly how.

Command [#tc -s qdisc ls] outputs the number of packets sent so far
but it does not output any info about the backlog.

My first question is whether a command exists that provides info
about the backlog.

My second question is whether a system call exists that provides this
info. I would like to be able to query on the backlog at real time
and invoking the shell on each such query sounds like a lot of overhead.

Kind regards,
Yannis

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             reply	other threads:[~2005-01-23  5:22 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-01-23  5:22 Ioannis C Avramopoulos (iavramop@Princeton.EDU) [this message]
2005-01-23  8:26 ` [LARTC] Determing the pfifo backlog vincent perrier

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