RE: Re: [pthreads-devel] Per Process Thread Limi t

When you recompile glibc from source having modified a couple of #define
statements. 
Plus you will need to change a define in the kernel and recomplile it as
well. 
If you are having java related problems (running out of threads etc) it
would be an idea
to try and find a webserver that works with java 4 and uses non blocking
io... 
just a guess .... my advice though, find another way arround it because
doing all that
isn't worth the effort ( i did it and still cant get past 1400 java threads
per vm )


--B


-----Original Message-----
From: Aron Rubin [mailto:[email protected]]
Sent: 17 June 2002 21:46
To: [email protected];
[email protected]
Subject: [pthreads-users] Re: [pthreads-devel] Per Process Thread Limit


Then will I be unable to go beyond 1024 with non NGPT patched kernels?

Aron

Howell, David P wrote:
>>From my test/development system:
> - The supported kernels are called out in INSTALL in the tarball. I'm
>   using linux-2.4.19-pre8 with the 2.4.19-pre8 futex patch, prior to 
>   the release of NGPT 1.9.3. 
> - I'm running NGPT 1.9.2.
> - The distribution I use is Red Hat 7.2 with the later kernel
> At this point I would use ngpt-1.9.3 with the latest kernel patches.
> 
> Dave Howell
> 
> -----Original Message-----
> From: Aron Rubin [mailto:[email protected]]
> Sent: Monday, June 17, 2002 4:00 PM
> Cc: [email protected];
> [email protected]
> Subject: Re: [pthreads-devel] Per Process Thread Limit
> 
> 
> Do you know what kernels/distributions/patches with this work with?
> 
> Aron
> 
> Howell, David P wrote:
> 
>>This is limited by the virtual memory space. I've spawned 27K threads with
> 
> 
>>'test_str02 -l' on my Linux box with 1G memory and 128M swap. 
>>
>>The tunables to lower the thread stack size can extend this, default is
> 
> 64K;
> 
>>if you can safely lower it for your threads it gives more space, I've used
> 
> 
>>16K before for a high thread count process that needed more threads. Use
> 
> the
> 
>>'export DEFAULTTHREADSTACKSIZE=16' for 16K default thread stacks, or use
> 
> the
> 
>>pthread_attr_stacksize() attribute for the threads.
>>
>>Dave Howell
>>
>>-----Original Message-----
>>From: Aron Rubin [mailto:[email protected]]
>>Sent: Monday, June 17, 2002 3:06 PM
>>To: [email protected];
>>[email protected]
>>Subject: [pthreads-devel] Per Process Thread Limit
>>
>>
>>Does NGPT allow for a higher per process thread limit. Right now it 
>>seems the highest number of threads possible per process is 1024.
>>
>>Aron
>>
>>_______________________________________________
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> 
> 
> 
> _______________________________________________
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