Zeos
Joined: 03 Jan 2006
Posts: 1
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| Posted: Fri Jul 20, 2007 8:08 am Post subject: CPU Usage since migration (host75) |
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Ever since I did the migration to host 75 I'm having a cpu utilization problem. Specifically, rngd is eating the cpu alive. My loads have up to the migration averaged < 0.3, since the change I'm well over 1.0.....rngd is definatly the culprit....
I'd leave it shut down, but apache starves for entropy and refuses to start.... |
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dfg
Joined: 20 Jul 2007
Posts: 1
Location: Norway
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| Posted: Fri Jul 20, 2007 9:07 am Post subject: |
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I had the same problem until I disabled force-feeding of entropy to the random device. This may be done with the option "--feed-interval". From rngd's manual pages:
Quote: -t n, --feed-interval=n (default: 60)
If feed-interval is not zero, rngd will
force-feed entropy to the random device even
when the entropy pool is full every feed-
interval seconds. Setting this too low may
cause rngd to dominate the contents of the
entropy pool.
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