Am 14.10.2010 11:29, schrieb Michael Van Canneyt:
On Thu, 14 Oct 2010, Henry Vermaak wrote:
On 14/10/10 10:20, Michael Van Canneyt wrote:
On Thu, 14 Oct 2010, Henry Vermaak wrote:
On 14/10/10 03:15, Andrew Brunner wrote:
I would say let's try to obtain source to pthreads or something. I'd
bet we can just do a straight shoot into something from there. If
it's open source i'd bet we can bother them perhaps for a newer
version more high-scale friendly.
NPTL source is in glibc.
I presently can create 1,500 threads in 2 min 27seconds. That's 2 1/2
threads per second... 25min! Pathetic...
Ingo Molnar have started and stopped 100,000 threads in less than 2
seconds on a dual P4 machine in some of the early NPTL tests.
One after the other ? That is not a meaningful test in this case ?
You should know how many threads existed in parallel.
No, parallel:
http://lwn.net/Articles/10740/
Impressive. So the FPC implementation on top of this obviously does
something on top of this which causes it to slow down.
When running the attached test program without a debugger, the FPC
performance won't be that bad either.
Volker
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