svn commit: r207602 - in head/sys: kern sys
Konstantin Belousov
kib at FreeBSD.org
Tue May 4 05:55:37 UTC 2010
Author: kib
Date: Tue May 4 05:55:37 2010
New Revision: 207602
URL: http://svn.freebsd.org/changeset/base/207602
Log:
Implement RUSAGE_THREAD. Add td_rux to keep extended runtime and ticks
information for thread to allow calcru1() (re)use.
Rename ruxagg()->ruxagg_locked(), ruxagg_tlock()->ruxagg() [1].
The ruxagg_locked() function no longer clears thread ticks nor
td_incruntime.
Requested by: attilio [1]
Discussed with: attilio, bde
Reviewed by: bde
Based on submission by: Alexander Krizhanovsky <ak natsys-lab com>
MFC after: 1 week
X-MFC-Note: td_rux shall be moved to the end of struct thread
Modified:
head/sys/kern/kern_resource.c
head/sys/kern/kern_thread.c
head/sys/sys/proc.h
head/sys/sys/resource.h
head/sys/sys/resourcevar.h
Modified: head/sys/kern/kern_resource.c
==============================================================================
--- head/sys/kern/kern_resource.c Tue May 4 05:55:19 2010 (r207601)
+++ head/sys/kern/kern_resource.c Tue May 4 05:55:37 2010 (r207602)
@@ -76,7 +76,7 @@ static void calcru1(struct proc *p, stru
struct timeval *up, struct timeval *sp);
static int donice(struct thread *td, struct proc *chgp, int n);
static struct uidinfo *uilookup(uid_t uid);
-static void ruxagg_tlock(struct proc *p, struct thread *td);
+static void ruxagg(struct proc *p, struct thread *td);
/*
* Resource controls and accounting.
@@ -630,7 +630,7 @@ lim_cb(void *arg)
return;
PROC_SLOCK(p);
FOREACH_THREAD_IN_PROC(p, td) {
- ruxagg_tlock(p, td);
+ ruxagg(p, td);
}
PROC_SUNLOCK(p);
if (p->p_rux.rux_runtime > p->p_cpulimit * cpu_tickrate()) {
@@ -841,7 +841,7 @@ calcru(struct proc *p, struct timeval *u
FOREACH_THREAD_IN_PROC(p, td) {
if (td->td_incruntime == 0)
continue;
- ruxagg_tlock(p, td);
+ ruxagg(p, td);
}
calcru1(p, &p->p_rux, up, sp);
}
@@ -961,6 +961,16 @@ kern_getrusage(struct thread *td, int wh
calccru(p, &rup->ru_utime, &rup->ru_stime);
break;
+ case RUSAGE_THREAD:
+ PROC_SLOCK(p);
+ ruxagg(p, td);
+ PROC_SUNLOCK(p);
+ thread_lock(td);
+ *rup = td->td_ru;
+ calcru1(p, &td->td_rux, &rup->ru_utime, &rup->ru_stime);
+ thread_unlock(td);
+ break;
+
default:
error = EINVAL;
}
@@ -1001,7 +1011,7 @@ ruadd(struct rusage *ru, struct rusage_e
* Aggregate tick counts into the proc's rusage_ext.
*/
void
-ruxagg(struct rusage_ext *rux, struct thread *td)
+ruxagg_locked(struct rusage_ext *rux, struct thread *td)
{
THREAD_LOCK_ASSERT(td, MA_OWNED);
@@ -1010,18 +1020,19 @@ ruxagg(struct rusage_ext *rux, struct th
rux->rux_uticks += td->td_uticks;
rux->rux_sticks += td->td_sticks;
rux->rux_iticks += td->td_iticks;
- td->td_incruntime = 0;
- td->td_uticks = 0;
- td->td_iticks = 0;
- td->td_sticks = 0;
}
static void
-ruxagg_tlock(struct proc *p, struct thread *td)
+ruxagg(struct proc *p, struct thread *td)
{
thread_lock(td);
- ruxagg(&p->p_rux, td);
+ ruxagg_locked(&p->p_rux, td);
+ ruxagg_locked(&td->td_rux, td);
+ td->td_incruntime = 0;
+ td->td_uticks = 0;
+ td->td_iticks = 0;
+ td->td_sticks = 0;
thread_unlock(td);
}
@@ -1039,7 +1050,7 @@ rufetch(struct proc *p, struct rusage *r
*ru = p->p_ru;
if (p->p_numthreads > 0) {
FOREACH_THREAD_IN_PROC(p, td) {
- ruxagg_tlock(p, td);
+ ruxagg(p, td);
rucollect(ru, &td->td_ru);
}
}
Modified: head/sys/kern/kern_thread.c
==============================================================================
--- head/sys/kern/kern_thread.c Tue May 4 05:55:19 2010 (r207601)
+++ head/sys/kern/kern_thread.c Tue May 4 05:55:37 2010 (r207602)
@@ -432,7 +432,7 @@ thread_exit(void)
PROC_UNLOCK(p);
thread_lock(td);
/* Save our tick information with both the thread and proc locked */
- ruxagg(&p->p_rux, td);
+ ruxagg_locked(&p->p_rux, td);
PROC_SUNLOCK(p);
td->td_state = TDS_INACTIVE;
#ifdef WITNESS
Modified: head/sys/sys/proc.h
==============================================================================
--- head/sys/sys/proc.h Tue May 4 05:55:19 2010 (r207601)
+++ head/sys/sys/proc.h Tue May 4 05:55:37 2010 (r207602)
@@ -240,7 +240,8 @@ struct thread {
u_int td_estcpu; /* (t) estimated cpu utilization */
int td_slptick; /* (t) Time at sleep. */
int td_blktick; /* (t) Time spent blocked. */
- struct rusage td_ru; /* (t) rusage information */
+ struct rusage td_ru; /* (t) rusage information. */
+ struct rusage_ext td_rux; /* (t) Internal rusage information. */
uint64_t td_incruntime; /* (t) Cpu ticks to transfer to proc. */
uint64_t td_runtime; /* (t) How many cpu ticks we've run. */
u_int td_pticks; /* (t) Statclock hits for profiling */
Modified: head/sys/sys/resource.h
==============================================================================
--- head/sys/sys/resource.h Tue May 4 05:55:19 2010 (r207601)
+++ head/sys/sys/resource.h Tue May 4 05:55:37 2010 (r207602)
@@ -56,6 +56,7 @@
#define RUSAGE_SELF 0
#define RUSAGE_CHILDREN -1
+#define RUSAGE_THREAD 1
struct rusage {
struct timeval ru_utime; /* user time used */
Modified: head/sys/sys/resourcevar.h
==============================================================================
--- head/sys/sys/resourcevar.h Tue May 4 05:55:19 2010 (r207601)
+++ head/sys/sys/resourcevar.h Tue May 4 05:55:37 2010 (r207602)
@@ -131,7 +131,7 @@ void rucollect(struct rusage *ru, struc
void rufetch(struct proc *p, struct rusage *ru);
void rufetchcalc(struct proc *p, struct rusage *ru, struct timeval *up,
struct timeval *sp);
-void ruxagg(struct rusage_ext *rux, struct thread *td);
+void ruxagg_locked(struct rusage_ext *rux, struct thread *td);
int suswintr(void *base, int word);
struct uidinfo
*uifind(uid_t uid);
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