Re: files/process scaling problem? (was: [PATCH] Exportshmem_file_setup and shmem_getpage for DRM-GEM)

[Alan Cox]

> The other issue is that several important applications (including the X
> server) use select instead of poll, and they have a small maximum number
> of fds that they support. It seems like this could be worked around by
> dup2'ing the shmem fds up a ways.

That would work yes. Switching to poll() would probably be even smarter,
or if you have a large number of fds being scanned take a look at epoll
which is likely to be far more efficient but wouldn't be available on so
many systems - poll is at least standard.
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