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| author | phk <phk@FreeBSD.org> | 1998-05-28 09:30:28 +0000 |
|---|---|---|
| committer | phk <phk@FreeBSD.org> | 1998-05-28 09:30:28 +0000 |
| commit | d3d65c6b2e376ac074f3ca386b6f5b70ea37636f (patch) | |
| tree | 6beef0d8c93f6063bf0b9870b87a8c1ef8267cd4 /sys/i386/include | |
| parent | 3654f28d394a609d42e7000c62963c45e3bba3db (diff) | |
| download | FreeBSD-src-d3d65c6b2e376ac074f3ca386b6f5b70ea37636f.zip FreeBSD-src-d3d65c6b2e376ac074f3ca386b6f5b70ea37636f.tar.gz | |
Some cleanups related to timecounters and weird ifdefs in <sys/time.h>.
Clean up (or if antipodic: down) some of the msgbuf stuff.
Use an inline function rather than a macro for timecounter delta.
Maintain process "on-cpu" time as 64 bits of microseconds to avoid
needless second rollover overhead.
Avoid calling microuptime the second time in mi_switch() if we do
not pass through _idle in cpu_switch()
This should reduce our context-switch overhead a bit, in particular
on pre-P5 and SMP systems.
WARNING: Programs which muck about with struct proc in userland
will have to be fixed.
Reviewed, but found imperfect by: bde
Diffstat (limited to 'sys/i386/include')
| -rw-r--r-- | sys/i386/include/globaldata.h | 3 | ||||
| -rw-r--r-- | sys/i386/include/pcpu.h | 3 |
2 files changed, 4 insertions, 2 deletions
diff --git a/sys/i386/include/globaldata.h b/sys/i386/include/globaldata.h index af8e806..c6c5a17 100644 --- a/sys/i386/include/globaldata.h +++ b/sys/i386/include/globaldata.h @@ -23,7 +23,7 @@ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * - * $Id: globaldata.h,v 1.3 1998/05/17 18:53:07 tegge Exp $ + * $Id: globaldata.h,v 1.4 1998/05/17 23:08:02 tegge Exp $ */ /* @@ -43,6 +43,7 @@ struct globaldata { struct proc *npxproc; struct pcb *curpcb; struct i386tss common_tss; + struct timeval switchtime; #ifdef VM86 struct segment_descriptor common_tssd; u_int private_tss; diff --git a/sys/i386/include/pcpu.h b/sys/i386/include/pcpu.h index af8e806..c6c5a17 100644 --- a/sys/i386/include/pcpu.h +++ b/sys/i386/include/pcpu.h @@ -23,7 +23,7 @@ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * - * $Id: globaldata.h,v 1.3 1998/05/17 18:53:07 tegge Exp $ + * $Id: globaldata.h,v 1.4 1998/05/17 23:08:02 tegge Exp $ */ /* @@ -43,6 +43,7 @@ struct globaldata { struct proc *npxproc; struct pcb *curpcb; struct i386tss common_tss; + struct timeval switchtime; #ifdef VM86 struct segment_descriptor common_tssd; u_int private_tss; |
