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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/kern/init_main.c | |
| 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/kern/init_main.c')
| -rw-r--r-- | sys/kern/init_main.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/sys/kern/init_main.c b/sys/kern/init_main.c index ba263aa..ea599a7 100644 --- a/sys/kern/init_main.c +++ b/sys/kern/init_main.c @@ -39,7 +39,7 @@ * SUCH DAMAGE. * * @(#)init_main.c 8.9 (Berkeley) 1/21/94 - * $Id: init_main.c,v 1.91 1998/04/19 23:31:54 julian Exp $ + * $Id: init_main.c,v 1.92 1998/05/17 11:52:35 phk Exp $ */ #include "opt_devfs.h" @@ -377,8 +377,10 @@ proc0_init(dummy) limit0.pl_rlimit[RLIMIT_RSS].rlim_max = i; limit0.pl_rlimit[RLIMIT_MEMLOCK].rlim_max = i; limit0.pl_rlimit[RLIMIT_MEMLOCK].rlim_cur = i / 3; + limit0.p_cpulimit = RLIM_INFINITY; limit0.p_refcnt = 1; + /* Allocate a prototype map so we have something to fork. */ pmap_pinit0(&vmspace0.vm_pmap); p->p_vmspace = &vmspace0; @@ -426,13 +428,13 @@ proc0_post(dummy) /* * Now can look at time, having had a chance to verify the time - * from the file system. Reset p->p_rtime as it may have been + * from the file system. Reset p->p_runtime as it may have been * munched in mi_switch() after the time got set. Set - * p->p_runtime to be consistent with this unmunching. + * p->p_switchtime to be consistent with this unmunching. */ microtime(&proc0.p_stats->p_start); - timevalclear(&proc0.p_rtime); - microuptime(&proc0.p_runtime); + proc0.p_runtime = 0; + microuptime(&proc0.p_switchtime); /* * Give the ``random'' number generator a thump. |
