K 10
svn:author
V 6
marius
K 8
svn:date
V 27
2011-10-01T00:11:03.650438Z
K 7
svn:log
V 567
In total store which we use for running the kernel and all of the userland
atomic operations behave as if the were followed by a memory barrier so
there's no need to include ones in the acquire variants of atomic(9).
Removing these results a small performance improvement, specifically this
is sufficient to compensate the performance loss seen in the worldstone
benchmark seen when using SCHED_ULE instead of SCHED_4BSD.
This change is inspired by Linux even more radically doing the equivalent
thing some time ago.
Thanks go to Peter Jeremy for additional testing.

END