iperf takes a lot of CPU bandwidth

To: iperf-users <iperf-users --at-- dast.nlanr.net>
Subject: iperf takes a lot of CPU bandwidth
From: Yaniv Kaul <ykaul --at-- checkpoint.com>
Date: Wed, 30 Apr 2003 16:13:47 +0200
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I'm running iperf 1.7.0, on Linux (RH 7.2), as a client, connected with 
IPv4 to multicast, with '-b 100K'.
I was running another multicast application, and it seemed sluggish, so 
I looked at 'top' and saw that iperf was constantly taking loads of CPU 
bandwidth - 60% and more!
The VNC I was connecting through was taking ~25%, the video application 
a mere ~20%. How could iperf be taking so much cpu?

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- Re: iperf takes a lot of CPU bandwidth
  - From: Kevin Gibbs

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