From: "Jose R. Santos" <jrs@us.ibm.com>
To: Irfan Habib <irfan.habib@gmail.com>
Cc: Linux kernel <linux-kernel@vger.kernel.org>,
SystemTAP <systemtap@sources.redhat.com>
Subject: Re: Fwd: Any way to find the network usage by a process?
Date: Tue, 03 Oct 2006 15:49:00 -0000 [thread overview]
Message-ID: <452285FD.7010909@us.ibm.com> (raw)
In-Reply-To: <3420082f0610030114o4c6998en907bccce81d28c59@mail.gmail.com>
Irfan Habib wrote:
> Hi,
>
> Is there any method either kernel or user level which tells me which
> process is generating how much traffic from a machine. For example if
> some process is flooding the network, then I would like to know which
> process (PID ideally), is generating the most traffic.
>
>
A while ago I did a SystemTap script to solve a problem similar to
this. It's been siting in my system for a while collecting dust and you
currently don't need the embedded C code since the networking.stp tapset
has all this script needs(and more), but I should point you in the right
direction.
This worked a couple of months ago but it is currently untested. Hope
it helps.
-JRS
global ifstats, ifdevs, execname
%{
#include<linux/skbuff.h>
#include<linux/netdevice.h>
%}
probe kernel.function("dev_queue_xmit")
{
execname[pid()] = execname()
name=skb_to_name($skb)
ifdevs[name] = name
ifstats[pid(),name] <<< 1
}
function skb_to_name:string (skbuff:long)
%{
struct sk_buff *skbuff = (struct sk_buff *)((long)THIS->skbuff);
struct net_device *netdev = skbuff->dev;
sprintf (THIS->__retvalue, "%s" , netdev->name);
%}
probe timer.ms(5000)
{
exit()
}
probe end {
foreach( pid in execname) {
if (pid == 0) continue
printf("%15s[%5d] ->\t", execname[pid],pid)
foreach( ifname in ifdevs) {
printf("[%s:%7d] \t", ifname,
@count(ifstats[pid, ifname]))
}
print("\n")
}
print("\n")
}
next parent reply other threads:[~2006-10-03 15:49 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <3420082f0610030114o5b44b8ak7797483e02002614@mail.gmail.com>
[not found] ` <3420082f0610030114o4c6998en907bccce81d28c59@mail.gmail.com>
2006-10-03 15:49 ` Jose R. Santos [this message]
2006-10-04 20:54 ` Mike Mason
2006-10-05 21:22 ` Frank Ch. Eigler
2006-10-05 23:28 ` Mike Mason
2006-10-06 0:00 ` Frank Ch. Eigler
2006-10-06 1:10 ` Mike Mason
2006-10-06 15:30 ` Frank Ch. Eigler
2006-10-06 1:08 Stone, Joshua I
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