metabuild: Use chrt --idle

This way on Linux we never get priority over another app that wants
the CPU.

1 files changed, 6 insertions, 0 deletions

diff --git a/bin/metabuild b/bin/metabuild
index 9e303a2..9043341 100755
--- a/bin/metabuild
+++ b/bin/metabuild
@@ -41,6 +41,12 @@ else:
 
 # "Constants" (well, some are derived from the environment)
 subprocess_nice_args = ['nice', 'ionice', '-c', '3', '-t']
+
+# In the future we should test for this better; possibly implement a
+# custom fork handler
+if os.uname()[0] == 'Linux':
+    subprocess_nice_args = ['chrt', '--idle', '0'] + subprocess_nice_args
+
 default_make_parallel = ['-j', '%d' % (cpu_count() * 6, )]
 user_specified_jobs = False
 configargs = ['--prefix=' + root, '--libdir=' + libdir]