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Bug #35355 sleep() not always accurate
Submitted: 2005-11-23 21:50 UTC Modified: 2005-12-07 01:00 UTC
Votes:1
Avg. Score:3.0 ± 0.0
Reproduced:0 of 0 (0.0%)
From: CaptSushekECF at aol dot com Assigned:
Status: No Feedback Package: *General Issues
PHP Version: 5.0.5 OS: Apache
Private report: No CVE-ID: None
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From: CaptSushekECF at aol dot com
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 [2005-11-23 21:50 UTC] CaptSushekECF at aol dot com 
Description:
------------
When running sleep(), I noticed it does not always pause the script for the exact amount of time.  Although the difference is no doubt neglectible, it is still noteable.

Reproduce code:
---------------
<?php $st = array_sum (explode (' ', microtime ()));

sleep (1);

echo round ((array_sum (explode (' ',microtime ())) - $st), 7); ?>

Expected result:
----------------
I expect to see values ranging around 1.0000001 to 1.01 (depending on lag).

Actual result:
--------------
It returned the following: (including server lag)

0.9998388
0.9999161
1.001672

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 [2005-11-23 21:53 UTC] tony2001@php.net 
Please try using this CVS snapshot:

  http://snaps.php.net/php5-latest.tar.gz
 
For Windows:
 
  http://snaps.php.net/win32/php5-win32-latest.zip
 [2005-12-07 01:00 UTC] php-bugs at lists dot php dot net 
No feedback was provided for this bug for over a week, so it is
being suspended automatically. If you are able to provide the
information that was originally requested, please do so and change
the status of the bug back to "Open".
 
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