summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--sys/amd64/amd64/mp_machdep.c9
-rw-r--r--sys/amd64/amd64/mptable.c9
-rw-r--r--sys/amd64/include/mptable.h9
-rw-r--r--sys/i386/i386/mp_machdep.c9
-rw-r--r--sys/i386/i386/mptable.c9
-rw-r--r--sys/i386/include/mptable.h9
-rw-r--r--sys/kern/kern_clock.c22
-rw-r--r--sys/kern/kern_synch.c26
-rw-r--r--sys/kern/kern_tc.c22
-rw-r--r--sys/kern/subr_smp.c9
-rw-r--r--sys/sys/proc.h1
11 files changed, 36 insertions, 98 deletions
diff --git a/sys/amd64/amd64/mp_machdep.c b/sys/amd64/amd64/mp_machdep.c
index d101973..b565cee 100644
--- a/sys/amd64/amd64/mp_machdep.c
+++ b/sys/amd64/amd64/mp_machdep.c
@@ -2323,14 +2323,7 @@ forwarded_statclock(int id, int pscnt, int *astmap)
cp_time[CP_INTR]++;
}
if (p != NULL) {
- p->p_cpticks++;
- if (++p->p_estcpu == 0)
- p->p_estcpu--;
- if ((p->p_estcpu & 3) == 0) {
- resetpriority(p);
- if (p->p_priority >= PUSER)
- p->p_priority = p->p_usrpri;
- }
+ schedclock(p);
/* Update resource usage integrals and maximums. */
if ((pstats = p->p_stats) != NULL &&
diff --git a/sys/amd64/amd64/mptable.c b/sys/amd64/amd64/mptable.c
index d101973..b565cee 100644
--- a/sys/amd64/amd64/mptable.c
+++ b/sys/amd64/amd64/mptable.c
@@ -2323,14 +2323,7 @@ forwarded_statclock(int id, int pscnt, int *astmap)
cp_time[CP_INTR]++;
}
if (p != NULL) {
- p->p_cpticks++;
- if (++p->p_estcpu == 0)
- p->p_estcpu--;
- if ((p->p_estcpu & 3) == 0) {
- resetpriority(p);
- if (p->p_priority >= PUSER)
- p->p_priority = p->p_usrpri;
- }
+ schedclock(p);
/* Update resource usage integrals and maximums. */
if ((pstats = p->p_stats) != NULL &&
diff --git a/sys/amd64/include/mptable.h b/sys/amd64/include/mptable.h
index d101973..b565cee 100644
--- a/sys/amd64/include/mptable.h
+++ b/sys/amd64/include/mptable.h
@@ -2323,14 +2323,7 @@ forwarded_statclock(int id, int pscnt, int *astmap)
cp_time[CP_INTR]++;
}
if (p != NULL) {
- p->p_cpticks++;
- if (++p->p_estcpu == 0)
- p->p_estcpu--;
- if ((p->p_estcpu & 3) == 0) {
- resetpriority(p);
- if (p->p_priority >= PUSER)
- p->p_priority = p->p_usrpri;
- }
+ schedclock(p);
/* Update resource usage integrals and maximums. */
if ((pstats = p->p_stats) != NULL &&
diff --git a/sys/i386/i386/mp_machdep.c b/sys/i386/i386/mp_machdep.c
index d101973..b565cee 100644
--- a/sys/i386/i386/mp_machdep.c
+++ b/sys/i386/i386/mp_machdep.c
@@ -2323,14 +2323,7 @@ forwarded_statclock(int id, int pscnt, int *astmap)
cp_time[CP_INTR]++;
}
if (p != NULL) {
- p->p_cpticks++;
- if (++p->p_estcpu == 0)
- p->p_estcpu--;
- if ((p->p_estcpu & 3) == 0) {
- resetpriority(p);
- if (p->p_priority >= PUSER)
- p->p_priority = p->p_usrpri;
- }
+ schedclock(p);
/* Update resource usage integrals and maximums. */
if ((pstats = p->p_stats) != NULL &&
diff --git a/sys/i386/i386/mptable.c b/sys/i386/i386/mptable.c
index d101973..b565cee 100644
--- a/sys/i386/i386/mptable.c
+++ b/sys/i386/i386/mptable.c
@@ -2323,14 +2323,7 @@ forwarded_statclock(int id, int pscnt, int *astmap)
cp_time[CP_INTR]++;
}
if (p != NULL) {
- p->p_cpticks++;
- if (++p->p_estcpu == 0)
- p->p_estcpu--;
- if ((p->p_estcpu & 3) == 0) {
- resetpriority(p);
- if (p->p_priority >= PUSER)
- p->p_priority = p->p_usrpri;
- }
+ schedclock(p);
/* Update resource usage integrals and maximums. */
if ((pstats = p->p_stats) != NULL &&
diff --git a/sys/i386/include/mptable.h b/sys/i386/include/mptable.h
index d101973..b565cee 100644
--- a/sys/i386/include/mptable.h
+++ b/sys/i386/include/mptable.h
@@ -2323,14 +2323,7 @@ forwarded_statclock(int id, int pscnt, int *astmap)
cp_time[CP_INTR]++;
}
if (p != NULL) {
- p->p_cpticks++;
- if (++p->p_estcpu == 0)
- p->p_estcpu--;
- if ((p->p_estcpu & 3) == 0) {
- resetpriority(p);
- if (p->p_priority >= PUSER)
- p->p_priority = p->p_usrpri;
- }
+ schedclock(p);
/* Update resource usage integrals and maximums. */
if ((pstats = p->p_stats) != NULL &&
diff --git a/sys/kern/kern_clock.c b/sys/kern/kern_clock.c
index 2d8a350..a8d492d 100644
--- a/sys/kern/kern_clock.c
+++ b/sys/kern/kern_clock.c
@@ -446,28 +446,8 @@ statclock(frame)
* programs: the amount of time in each cpu state.
*/
- /*
- * We adjust the priority of the current process. The priority of
- * a process gets worse as it accumulates CPU time. The cpu usage
- * estimator (p_estcpu) is increased here. The formula for computing
- * priorities (in kern_synch.c) will compute a different value each
- * time p_estcpu increases by 4. The cpu usage estimator ramps up
- * quite quickly when the process is running (linearly), and decays
- * away exponentially, at a rate which is proportionally slower when
- * the system is busy. The basic principal is that the system will
- * 90% forget that the process used a lot of CPU time in 5 * loadav
- * seconds. This causes the system to favor processes which haven't
- * run much recently, and to round-robin among other processes.
- */
if (p != NULL) {
- p->p_cpticks++;
- if (++p->p_estcpu == 0)
- p->p_estcpu--;
- if ((p->p_estcpu & 3) == 0) {
- resetpriority(p);
- if (p->p_priority >= PUSER)
- p->p_priority = p->p_usrpri;
- }
+ schedclock(p);
/* Update resource usage integrals and maximums. */
if ((pstats = p->p_stats) != NULL &&
diff --git a/sys/kern/kern_synch.c b/sys/kern/kern_synch.c
index 4811669..f14980b 100644
--- a/sys/kern/kern_synch.c
+++ b/sys/kern/kern_synch.c
@@ -899,3 +899,29 @@ sched_setup(dummy)
schedcpu(NULL);
}
+/*
+ * We adjust the priority of the current process. The priority of
+ * a process gets worse as it accumulates CPU time. The cpu usage
+ * estimator (p_estcpu) is increased here. The formula for computing
+ * priorities (in kern_synch.c) will compute a different value each
+ * time p_estcpu increases by 4. The cpu usage estimator ramps up
+ * quite quickly when the process is running (linearly), and decays
+ * away exponentially, at a rate which is proportionally slower when
+ * the system is busy. The basic principal is that the system will
+ * 90% forget that the process used a lot of CPU time in 5 * loadav
+ * seconds. This causes the system to favor processes which haven't
+ * run much recently, and to round-robin among other processes.
+ */
+void
+schedclock(p)
+ struct proc *p;
+{
+ p->p_cpticks++;
+ if (++p->p_estcpu == 0)
+ p->p_estcpu--;
+ if ((p->p_estcpu & 3) == 0) {
+ resetpriority(p);
+ if (p->p_priority >= PUSER)
+ p->p_priority = p->p_usrpri;
+ }
+}
diff --git a/sys/kern/kern_tc.c b/sys/kern/kern_tc.c
index 2d8a350..a8d492d 100644
--- a/sys/kern/kern_tc.c
+++ b/sys/kern/kern_tc.c
@@ -446,28 +446,8 @@ statclock(frame)
* programs: the amount of time in each cpu state.
*/
- /*
- * We adjust the priority of the current process. The priority of
- * a process gets worse as it accumulates CPU time. The cpu usage
- * estimator (p_estcpu) is increased here. The formula for computing
- * priorities (in kern_synch.c) will compute a different value each
- * time p_estcpu increases by 4. The cpu usage estimator ramps up
- * quite quickly when the process is running (linearly), and decays
- * away exponentially, at a rate which is proportionally slower when
- * the system is busy. The basic principal is that the system will
- * 90% forget that the process used a lot of CPU time in 5 * loadav
- * seconds. This causes the system to favor processes which haven't
- * run much recently, and to round-robin among other processes.
- */
if (p != NULL) {
- p->p_cpticks++;
- if (++p->p_estcpu == 0)
- p->p_estcpu--;
- if ((p->p_estcpu & 3) == 0) {
- resetpriority(p);
- if (p->p_priority >= PUSER)
- p->p_priority = p->p_usrpri;
- }
+ schedclock(p);
/* Update resource usage integrals and maximums. */
if ((pstats = p->p_stats) != NULL &&
diff --git a/sys/kern/subr_smp.c b/sys/kern/subr_smp.c
index d101973..b565cee 100644
--- a/sys/kern/subr_smp.c
+++ b/sys/kern/subr_smp.c
@@ -2323,14 +2323,7 @@ forwarded_statclock(int id, int pscnt, int *astmap)
cp_time[CP_INTR]++;
}
if (p != NULL) {
- p->p_cpticks++;
- if (++p->p_estcpu == 0)
- p->p_estcpu--;
- if ((p->p_estcpu & 3) == 0) {
- resetpriority(p);
- if (p->p_priority >= PUSER)
- p->p_priority = p->p_usrpri;
- }
+ schedclock(p);
/* Update resource usage integrals and maximums. */
if ((pstats = p->p_stats) != NULL &&
diff --git a/sys/sys/proc.h b/sys/sys/proc.h
index bd68a73..de6ccca 100644
--- a/sys/sys/proc.h
+++ b/sys/sys/proc.h
@@ -403,6 +403,7 @@ void procinit __P((void));
int p_trespass __P((struct proc *p1, struct proc *p2));
void resetpriority __P((struct proc *));
int roundrobin_interval __P((void));
+void schedclock __P((struct proc *));
void setrunnable __P((struct proc *));
void setrunqueue __P((struct proc *));
void sleepinit __P((void));
OpenPOWER on IntegriCloud