Any GNU C threadpool library?

[Florian Weimer]

* Saurav Shah via Libc-alpha:

> Is there any GNU C library that supports threadpool?
> My project previously was developed for the QNX Neutrino platform. Now we
> are porting it to linux. QNX had a built-in threadpool library based on
> pthread.

We have a stack cache which avoids some of the mmap overhead involved in
thread creation.  Creating the threads themselves is fairly cheap in
Linux, I think, so we do not keep them around in a separate cache.
Different kernels also have different thread-associated resources, so a
thread cache wouldn't be totally transparent to applications.

Thanks,
Florian