Upgrade to pex 0.8.4 to pick up perf wins.

Review Request #1693 - Created Jan. 30, 2015 and submitted

Information
John Sirois
pants
jsirois/pex/upgrade
1014
9748ae7...
Reviewers
pants-reviews
patricklaw, wickman, Yasumoto, zundel
3rdparty/python/requirements.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Basic perf test shows a nice win for interactive use:

Old

2nd+ consecutive runs
time pants.dev test tests/python/pants_test/engine
...
real 0m5.989s
user 0m2.897s
sys 0m0.453s

New

2nd+ consecutive runs
time pants.dev test tests/python/pants_test/engine
...
real 0m1.973s
user 0m1.350s
sys 0m0.220s

CI went green here: https://travis-ci.org/pantsbuild/pants/builds/48943230

John Sirois
John Sirois
Patrick Lawson
John Sirois
John Sirois
John Sirois
Review request changed

Status: Closed (submitted)

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