Re: performance....

On Mon, Apr 15, 2002 at 09:52:03AM -0400, Bill Abt wrote:

> Most of our benchmarking and testing has involved the same test cases that
> are included in the LinuxThreads package.  In these tests, NGPT is faster
> in virtually every area.

Since you're able to do thread context switches in userland, as compared to
Linuxthreads that does thread context switches in the kernel, your context
switches *ought* to be much more efficient.  But I haven't measured this 
directly.

It also appears to me that things like syscalls that can block, mutex locking,
and pthread_self among others, are likely to be less efficient in NGPT than
Linuxthreads.

I would guess that benchmarks that are dominated by the cost of context switches
would favor NGPT.  Other benchmarks might show the opposite, depending on the
mix of code.

-- 
Richard Seaman, Jr.        email:    [email protected]
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