[Bug 642985] Review Request: rubygem-timecop - Provides a unified method to mock Time.now, Date.today in a single call

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https://bugzilla.redhat.com/show_bug.cgi?id=642985

--- Comment #3 from Mamoru Tasaka <mtasaka at ioa.s.u-tokyo.ac.jp> 2010-10-21 06:58:26 EDT ---
By the way for bug 640608:

It seems that
$ ruby -e 'otime = Time.now ; sleep(1) ; ctime=Time.now ; puts ctime - otime'
will call system calls: gettimeofday -> select -> gettimeofday.

However it seems that select() sometimes sleeps less time than
requested:
http://lkml.org/lkml/2008/8/29/232
... which seems fixed in kernel 2.6.28. So RHEL5 host may suffer from
this issue? (and perl seems to be using nanosleep instead of select)

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