Unix Programming - Re: How to "sleep" or "delay"?

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Re: How to "sleep" or "delay"?

André Goddard Rosa

2005-01-16, 8:58 pm

Hi, there!!!

We have an application that process a lot of data. While we were using
select (no fd set, just the timeou delay) the process terminates in +-
3 hours.
After we changed the implementation to use nanosleep(), _surprise_, the
process terminated in just 1 hour. Looks like our process was being
preempted and put in the end of the run queue at each call to select.

Does anyone can explain that? It happens both in solaris and Linux.
Thanks!

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