d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Backout previous commit. sched_lock is held, thus interrupts are prevented

Browse Source 
here.

Submitted by:	jhb
This commit is contained in:
tegge 2001-02-22 20:12:52 +00:00
parent b3140862f5
commit a0e033921a
1 changed files with 6 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
sys/kern/kern_resource.c
View File

@ -567,27 +567,19 @@ calcru(p, up, sp, ip)
tu = p->p_runtime;
if (p == curproc) {
struct timeval old_switchtime;
/*
* Adjust for the current time slice. This is actually fairly
* important since the error here is on the order of a time
* quantum, which is much greater than the sampling error.
*/
do {
old_switchtime = PCPU_GET(switchtime);
microuptime(&tv);
} while (old_switchtime.tv_sec !=
PCPU_GET(switchtime.tv_sec) ||
old_switchtime.tv_usec !=
PCPU_GET(switchtime.tv_usec));
if (timevalcmp(&tv, &old_switchtime, <))
microuptime(&tv);
if (timevalcmp(&tv, PCPU_PTR(switchtime), <))
printf("microuptime() went backwards (%ld.%06ld -> %ld.%06ld)\n",
old_switchtime.tv_sec,
old_switchtime.tv_usec,
tv.tv_sec, tv.tv_usec);
PCPU_GET(switchtime.tv_sec), PCPU_GET(switchtime.tv_usec),
tv.tv_sec, tv.tv_usec);
else
tu += (tv.tv_usec - old_switchtime.tv_usec) +
(tv.tv_sec - old_switchtime.tv_sec) *
tu += (tv.tv_usec - PCPU_GET(switchtime.tv_usec)) +
(tv.tv_sec - PCPU_GET(switchtime.tv_sec)) *
(int64_t)1000000;
}
ptu = p->p_uu + p->p_su + p->p_iu;