Increase nproc as well

.travis.yml

diff --git a/.travis.yml b/.travis.yml
index 47e338a..25342ee 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,4 +3,6 @@
   - oraclejdk7
   - openjdk7
   - openjdk6
-before_script: ulimit -n 8192
+before_script:
+  - ulimit -n 64000
+  - ulimit -u 64000