K 10
svn:author
V 8
truckman
K 8
svn:date
V 27
2018-07-29T00:30:06.949843Z
K 7
svn:log
V 809
Fix the long term ULE load balancer so that it actually works.  The
initial call to sched_balance() during startup is meant to initialize
balance_ticks, but does not actually do that since smp_started is
still zero at that time.  Since balance_ticks does not get set,
there are no further calls to sched_balance().  Fix this by setting
balance_ticks in sched_initticks() since we know the value of
balance_interval at that time, and eliminate the useless startup
call to sched_balance().  We don't need to randomize the intial
value of balance_ticks.

Since there is now only one call to sched_balance(), we can hoist
the tests at the top of this function out to the caller and avoid
the overhead of the function call when running a SMP kernel on UP
hardware.

PR:		223914
Reviewed by:	kib
MFC after:	2 weeks

END