STINNER Victor added the comment:

> Those failures are "expected", nothing guarantees that the syscall
> will take at least the amount of time specified.

Ah? The manual page of epoll_wait() says:

"The  timeout  argument specifies the minimum number of milliseconds that 
epoll_wait() will block.  (This interval will be rounded up to the system clock 
granularity, and kernel scheduling delays mean that the blocking  interval may  
overrun  by  a  small  amount.)"

I read minimum, not maximum here :-)

If epoll_wait(timeout_ms) may wait less than timeout_ms seconds, asyncio 
algorithm is wrong, or at least inefficient. It should loop until the time 
delta is at least total_timeout seconds. See the original issue:
http://code.google.com/p/tulip/issues/detail?id=106

----------

_______________________________________
Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue20311>
_______________________________________
_______________________________________________
Python-bugs-list mailing list
Unsubscribe: 
https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com

Reply via email to