Thanks for looking at this Michael, comments inline...

On 28/02/14 15:55, Michael McMahon wrote:
...

I agree option 2 sounds better since adding (say) 4k * sizeof(fd_set) to
the stack is quite
significant given that it would rarely be required.

Agreed.

On the change itself I noticed one path in bsd_close.c NET_Timeout where
the malloc'd buffer
is not freed (line 418)

D'oh. Fixed.

Is it potentially more efficient to use calloc() rather than malloc() +
memset()?

Changed to calloc.

Maybe a test might need a shell script to call "ulimit -n 4096" or
something to be able to test it.

It maybe shell related, but even with 'ulimit -n' = 256, the test in the latest webrev seems to blow through this soft limit without problem.

Updated webrev:
  http://cr.openjdk.java.net/~chegar/8035897/webrev.01/webrev/

-Chris.


Michael


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