K 10
svn:author
V 3
jhb
K 8
svn:date
V 27
2011-04-18T18:55:27.625141Z
K 7
svn:log
V 378
MFC 220430,220431,220452,220460:
If a system call does not request a full interrupt return, use a fast
path via the sysretq instruction to return from the system call.  This
resolves most of the performance regression in system call microbenchmarks
between 7 and 8 on amd64.

While here, trim an instruction (and memory access) from the doreti path
and fix a typo in a comment.

END