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lotsa lotsa lotsa FDs
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lotsa lotsa lotsa FDs


  • Subject: lotsa lotsa lotsa FDs
  • From: email@hidden
  • Date: Thu, 20 Apr 2006 16:46:29 -0700


Hello, all ...

I'm writing server software that handles (and test clients that initiate) thousands of simultaneous socket connections. When I test, I generally do this:

PugsleyButt:~/devstuff/event_test jmzorko$ sh
sh-2.05b$ ulimit -n 3010
sh-2.05b$ ulimit -s 65536

... in the terminal window for the server and the client (and I often do them on the same box), before running the test server (C++) and the test client (Perl, but I also use iTunes as a test client when I test with an MP3 stream). Yet, often when I do this, my machine (1.5ghz PowerBook G4, 10.4.6, 1.25GB RAM) gets all wonky ... I can't launch new processes or kill old ones, I can't check email, launch Safari, etc. I basically get the spinning beach ball everywhere and it all goes pear-shaped.

... so I figure i'm not doing it right. Is ulimit -n / -s not enough? Can I do something else to allow for the thousands of descriptors i'll be creating / using?

Regards,

John

Falling You - exploring the beauty of voice and sound
http://www.fallingyou.com











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