[cgl_discussion] NGPT vs. NPTL

[Mika Kukkonen]

The battle is _on_ ...

--MiKu

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NGPT - Next Generation POSIX Threading

NGPT Release 2.2.0, released today, 10 January 2003,  is the next
release
of the "Next Generation"
of Linux pthreads support.  This release is fully suitable as a
replacement
for LinuxThreads by either
a single user or group or an entire distribution.

In this release, the primary focus was performance.  Significant
performance and scalability enhance-
ments have been made to this release making it the fastest and most
scalable POSIX compliant
threads package available on the Linux platform.
                                                                             
                                                                             
                                                                             
 In this release, performance and scalability were the key focus of
NGPT     
 developers.  Performance and scalability were improved to the point
where   
 NGPT bests both LinuxThreads and the new NPTL threading package
in          
 benchmarks.  No changes were made to the kernel patches and thanks to
the   
 NPTL effort, all changes required to run NGPT on the latest 2.5.x
kernels   
 are already
included.                                                       
                                                                             
                                                                             
 Performance and scalability were measured using a benchmark
program         
 developed by Sun Microsystems to "prove" that a 1:1 threading model
is      
 better than the M:N threading model.  As can be seen in the
benchmark       
 results NGPT is the performance and scalability leader on both a 2-way
and  
 4-way machine running this benchmark.  The benchmark results can be
found   
 on the NGPT website.  The benchmark itself can be downloaded from the
Sun   
 Microsystems
site.                                                          
                                                                             
                                                                             

The NGPT website can be found at
http://www-126.ibm.com/developerworks/opensource/pthreads.


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