[Patches] [ python-Patches-1396919 ] FreeBSD is system scope threads capable

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Patches item #1396919, was opened at 2006-01-04 23:53
Message generated for change (Comment added) made by perky
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Category: Build
Group: Python 2.4
>Status: Closed
>Resolution: Fixed
Priority: 5
Submitted By: Valts (valdiic)
Assigned to: Hye-Shik Chang (perky)
Summary: FreeBSD is system scope threads capable

Initial Comment:
I was a little bit disapointed when I mentioned that 
Python 2.4 uses libpthread library on FreeBSD 5 but 
avoids using system scope threads. I tried digging 
google to clarify why it is so and found out that it 
was because one of threading regression tests 
(test_threaded_import) failed on FreeBSD 5 (https://
sourceforge.net/tracker/?
func=detail&atid=305470&aid=902444&group_id=5470). I 
compiled Python on my FreeBSD 5.4-RELEASE-p8 and ran 
all the regression tests (I executed regrtest.py) and 
saw no errors at all. I tried test_threaded_import and 
the test was successful.
I don't see any reason why to avoid using system scope 
threads specially on FreeBSD. I know that using 
userland scope threads is quite faster because there is 
no need for kernel activities in context switching. But 
as far as I know most of servers (where speed is 
important) are SMP boxes. Userland scope threads don't 
use capabilities of multiple CPU's, so it should be 
reasonable to use system scope threads.
To make it even better it could be good idea to make 
use of configuration parameter which determines which 
kind of threads has to be used. Since I'm not autoconf 
guru I made a patch which just removes checking against 
FreeBSD in thread_pthread.h

Regards,
Valts.

mailto:valdiic at one.lv

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>Comment By: Hye-Shik Chang (perky)
Date: 2006-03-23 21:36

Message:
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Fixed in r43249. Thank you for the report!

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Comment By: Martin v. Löwis (loewis)
Date: 2006-01-15 03:27

Message:
Logged In: YES 
user_id=21627

perky, you created the original patch. can you please review
this one?


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