Changeset: 133ea73bec4c for MonetDB
URL: http://dev.monetdb.org/hg/MonetDB?cmd=changeset;node=133ea73bec4c
Modified Files:
monetdb5/mal/mal_profiler.c
Branch: holindex
Log Message:
Add necessary checks in GetCPUload and increase the time interval between two
measurements.
diffs (100 lines):
diff --git a/monetdb5/mal/mal_profiler.c b/monetdb5/mal/mal_profiler.c
--- a/monetdb5/mal/mal_profiler.c
+++ b/monetdb5/mal/mal_profiler.c
@@ -1230,19 +1230,19 @@ static int hbdelay = 0;
* Given the parsing involved, it should be used sparingly */
static struct{
- lng user, nice, system, idle, iowait, irq, softirq, steal, guest,
guest_nice;
- double load;
+ float user, nice, system, idle, iowait, irq, softirq, steal, guest,
guest_nice;
+ float load;
} corestat[257];
static int getCPULoad(char cpuload[BUFSIZ]){
int cpu, len, i;
- lng user, nice, system, idle, iowait, irq, softirq, steal, guest,
guest_nice;
- lng u_frme, s_frme, n_frme, i_frme, w_frme, irq_frme, sirq_frme,
steal_frme, g_frme, ng_frme, tot_frme;
+ float user, nice, system, idle, iowait, irq, softirq, steal, guest,
guest_nice;
+ float u_frme, s_frme, n_frme, i_frme, w_frme, irq_frme, sirq_frme,
steal_frme, g_frme, ng_frme, tot_frme;
size_t n;
char buf[BUFSIZ+1],*s;
static FILE *proc= NULL;
- lng newload;
- float scale;
+ float newload;
+ float scale=0.0;
if ( proc == NULL || ferror(proc))
proc = fopen("/proc/stat","r");
@@ -1271,7 +1271,7 @@ static int getCPULoad(char cpuload[BUFSI
if ( s== 0) goto skip;
while( *s && isspace((int)*s)) s++;
- i= sscanf(s,LLFMT" "LLFMT" "LLFMT" "LLFMT" "LLFMT"
"LLFMT" "LLFMT" "LLFMT" "LLFMT" "LLFMT , &user, &nice, &system, &idle,
&iowait, &irq, &softirq, &steal, &guest, &guest_nice);
+ i= sscanf(s,"%f %f %f %f %f %f %f %f %f %f", &user,
&nice, &system, &idle, &iowait, &irq, &softirq, &steal, &guest, &guest_nice);
if ( i != 10 )
goto skip;
@@ -1287,14 +1287,11 @@ static int getCPULoad(char cpuload[BUFSI
g_frme = guest - corestat[cpu].guest;
ng_frme = guest_nice - corestat[cpu].guest_nice;
tot_frme = u_frme + s_frme + n_frme + i_frme + w_frme +
irq_frme + sirq_frme + steal_frme + g_frme + ng_frme;
- if (tot_frme < 1) tot_frme = 1;
- scale = 100.0 / (float)tot_frme;
-
+ if (tot_frme > 0)
+ scale = 100.0 / tot_frme;
newload = u_frme + s_frme + n_frme + w_frme + irq_frme
+ sirq_frme + steal_frme + g_frme + ng_frme;
- if (newload)
- corestat[cpu].load = (double) newload * scale;
- //if(cpu==256)
- // fprintf(stderr,"cpu=%d user="LLFMT"
nice="LLFMT" system="LLFMT" idle="LLFMT" iowait="LLFMT" newload="LLFMT"
load=%.2f
cor.idle="LLFMT"\n",cpu,user,nice,system,idle,iowait,newload,corestat[cpu].load,corestat[cpu].idle);
+ if (newload > 0 && scale != 0)
+ corestat[cpu].load = newload * scale;
corestat[cpu].user = user;
corestat[cpu].nice = nice;
@@ -1323,7 +1320,7 @@ static int getCPULoad(char cpuload[BUFSI
// Give users the option to check for the system load between two heart beats
void HeartbeatCPUload_total(void *arg)
{
- lng load;
+ float load;
char cpuload[BUFSIZ];
FILE *ofp;
char *outputFilename1 = getenv("TOTAL_CPULOAD");
@@ -1344,8 +1341,8 @@ void HeartbeatCPUload_total(void *arg)
(void) getCPULoad(cpuload);
load = corestat[256].load;
if ( load >= 0 && load <= 100.0)
- fprintf(ofp,"%lf\n",corestat[256].load);
- MT_sleep_ms(10);
+ fprintf(ofp,"%f\n",corestat[256].load);
+ MT_sleep_ms(1000);
}
fclose(ofp);
}
@@ -1357,7 +1354,7 @@ void HeartbeatCPUload(void *arg)
char *p = getenv("CPULOAD_THRESHOLD");
char *cores = getenv("CORES"); /*number of physical cores*/
int threshold=0, max_threads=0;
- lng load;
+ float load;
int n=0; /*number of idle cores*/
double N=0; /*number of busy cores*/
void (*IdleFunc)(void *) = arg;
@@ -1380,10 +1377,11 @@ void HeartbeatCPUload(void *arg)
N = (int) (load * max_threads) / 100.0;
n = max_threads - N;
MRschedule(n, NULL, IdleFunc);
- MT_sleep_ms(10);
+ (void) getCPULoad(cpuload);
+ MT_sleep_ms(1000);
}
else
- MT_sleep_ms(10);
+ MT_sleep_ms(1000);
}
}
}
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