Set the nice value of mapper process to -5

The mapper is the dbus service discovery manager which is used
pervasively in openbmc apps. During stress tests it was observed
that mapper is acting as a bottleneck and affecting BMC performance and
leading to mapper calls failing. We saw improved performance with the
mapper by bumping the priority.

Resolves openbmc/openbmc#2656

Change-Id: I7fa5bf1fe78a944fb773cfba99e00f27de6b2110
Signed-off-by: Tom Joseph <tomjoseph@in.ibm.com>
2 files changed