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obsdfreqd
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obsdfreqd: try a temperature target

This commit is contained in:
Solene Rapenne 2022-03-21 12:44:00 +01:00
parent a1a978ce6e
commit 6cf98a74a7
1 changed files with 40 additions and 5 deletions
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45
main.c
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@ -18,6 +18,7 @@ int inertia, batt_inertia, wall_inertia;
int step, batt_step, wall_step;
int timefreq, batt_timefreq, wall_timefreq;
float get_temp(void);
void set_policy(const char*);
void quit_gracefully(int signum);
void usage(void);
@ -25,6 +26,22 @@ void switch_wall(void);
void switch_batt(void);
void assign_values_from_param(char*, int*, int*);
float get_temp() {
FILE *fp;
char path[1035];
char *eptr;
int ch;
fp = popen("/usr/sbin/sysctl -n hw.sensors.cpu0", "r");
if (fp == NULL)
err(1, "popen failed");
fgets(path, sizeof(path), fp);
char *token = strtok(path, " ");
pclose(fp);
return(strtof(token, &eptr));
}
/* define the policy to auto or manual */
void set_policy(const char* policy) {
int mib[2];
@ -109,6 +126,8 @@ int main(int argc, char *argv[]) {
int quiet = 0;
int value, current_frequency, inertia_timer = 0;
int cpu_usage_percent = 0, cpu_usage;
float temp_max = 0;
float temp;
size_t len, len_cpu;
min = batt_min= wall_min = 0;
@ -119,11 +138,11 @@ int main(int argc, char *argv[]) {
step = batt_step= wall_step = 10;
timefreq = batt_timefreq= wall_timefreq = 300;
if (unveil("/var/empty", "r") == -1)
err(1, "unveil failed");
unveil(NULL, NULL);
//if (unveil("/var/empty", "r") == -1)
// err(1, "unveil failed");
//unveil(NULL, NULL);
while((opt = getopt(argc, argv, "d:hi:l:m:qr:s:t:")) != -1) {
while((opt = getopt(argc, argv, "d:hi:l:m:qr:s:t:T:")) != -1) {
switch(opt) {
case 'd':
assign_values_from_param(optarg, &wall_down_step, &batt_down_step);
@ -163,6 +182,9 @@ int main(int argc, char *argv[]) {
if(wall_timefreq <= 0 || batt_timefreq <= 0)
err(1, "time frequency must be positive");
break;
case 'T':
temp_max = atoi(optarg);
break;
case 'h':
default:
usage();
@ -187,7 +209,7 @@ int main(int argc, char *argv[]) {
set_policy("manual");
if (quiet == 0)
printf("mode;frequency;cpu usage;inertia;new frequency\n");
printf("mode;frequency;cpu usage;inertia;new frequency;temp;max_freq\n");
/* avoid weird reading for first delta */
if (sysctl(mib_load, 2, &cpu_previous, &len_cpu, NULL, 0) == -1)
@ -287,6 +309,19 @@ int main(int argc, char *argv[]) {
if(quiet == 0) printf("%i;%i;", inertia_timer, frequency);
// manage temperature
if(temp_max > 0) {
temp = get_temp();
if(temp > temp_max) {
if(max > min)
max--;
} else {
if(max < 100)
max++;
}
printf("%.0f;%i", temp, max);
}
if(quiet == 0) printf("\n");
usleep(1000*timefreq);
}