From 17bf74e9b57b6077ba2f75ced5a1263d0692cd14 Mon Sep 17 00:00:00 2001
From: jdisnard <jdisnard@redhat.com>
Date: May 03 2017 00:49:07 +0000
Subject: XZ threads are very bad about memory, so use only two threads.


In koji #380 we setup -T0
That will use all available compute resources.
It also has the potential to exhaust system memnory, and cause errors.
This PR seeks a middle ground with 2 XZ threads similar to createrepo_c.
https://github.com/rpm-software-management/createrepo_c/blob/master/src/compression_wrapper.c#L490

Signed-off-by: jdisnard <jdisnard@redhat.com>

---

diff --git a/builder/kojid b/builder/kojid
index 8905525..1a10483 100755
--- a/builder/kojid
+++ b/builder/kojid
@@ -3698,7 +3698,7 @@ class BaseImageTask(OzImageTask):
             'xz-cp-%s-%s.log' % (format, self.arch))
         log_output(self.session, cmd[0], cmd, conlog, self.getUploadDir(),
             logerror=1)
-        cmd = ['/usr/bin/xz', '-z9T0', rawimg]
+        cmd = ['/usr/bin/xz', '-z9T2', rawimg]
         conlog = os.path.join(self.workdir,
             'xz-%s-%s.log' % (format, self.arch))
         log_output(self.session, cmd[0], cmd, conlog, self.getUploadDir(),