tree 7cf3c07c6c9f42f17e1ade91eb354f95a16a0a80
parent 3a0e782790ab83e3b1e93fe2fd57f7197ace2f76
author Shawn O. Pearce <sop@google.com> 1316737421 -0700
committer Shawn O. Pearce <sop@google.com> 1316740106 -0700

sync: Limit -j to file descriptors

Each worker thread requires at least 3 file descriptors to run the
forked 'git fetch' child to operate against the local repository.
Mac OS X has the RLIMIT_NOFILE set to 256 by default, which means
a sync -j128 often fails when the workers run out of pipes within
the Python parent process.

Change-Id: I2cdb14621b899424b079daf7969bc8c16b85b903
Signed-off-by: Shawn O. Pearce <sop@google.com>