static GObject *
cpufreq_monitor_libcpufreq_constructor (GType type,
guint n_construct_properties,
GObjectConstructParam *construct_params)
{
GObject *object;
gulong max_freq, min_freq;
guint cpu;
object = G_OBJECT_CLASS (
cpufreq_monitor_libcpufreq_parent_class)->constructor (type,
n_construct_properties,
construct_params);
g_object_get (G_OBJECT (object),
"cpu", &cpu,
NULL);
if (cpufreq_get_hardware_limits (cpu, &min_freq, &max_freq) != 0) {
g_warning ("Error getting CPUINFO_MAX\n");
max_freq = -1;
}
g_object_set (G_OBJECT (object),
"max-frequency", max_freq,
NULL);
return object;
}
int set_process_cpu_and_freq(const unsigned int cpu_index) {
// set the core-affinity
cpu_set_t cpu_set;
CPU_ZERO(&cpu_set);
CPU_SET(cpu_index, &cpu_set);
sched_setaffinity(0, sizeof(cpu_set), &cpu_set);
// set CPU governor
unsigned long cpu_max = 0;
unsigned long cpu_min = 0;
unsigned long cpu_cur = 0;
if (cpufreq_cpu_exists(cpu_index) != 0) {
printf("Invalid CPU index!\n");
return -1;
}
if (cpufreq_get_hardware_limits(cpu_index, &cpu_min, &cpu_max) != 0) {
printf("Unable to get hardware limits!\n");
return -1;
}
if (cpufreq_set_frequency(cpu_index, cpu_max) != 0) {
printf("Unable to set frequency(%luMHz) Are u root?\n", cpu_max / 1000);
return -1;
}
cpu_cur = (cpufreq_get_freq_kernel(cpu_index) / 1000);
printf("Current CPU %u Frequency: %lu MHz\n\n", cpu_index, cpu_cur);
return 0;
}
int single_freq_init (actuator_t *act)
{
int err;
struct cpufreq_policy *policy;
struct cpufreq_available_frequencies *freq_list;
freq_scaler_data_t *data;
unsigned long freq_min, freq_max;
act->data = data = malloc(sizeof(freq_scaler_data_t));
fail_if(!data, "cannot allocate freq data block");
err = cpufreq_get_hardware_limits(act->core, &freq_min, &freq_max);
fail_if(err, "cannot get cpufreq hardware limits");
act->min = freq_min;
act->max = freq_max;
policy = cpufreq_get_policy(act->core);
fail_if(!policy, "cannot get cpufreq policy");
if (strcmp(policy->governor, "userspace") != 0) {
err = cpufreq_modify_policy_governor(act->core, "userspace");
policy = cpufreq_get_policy(act->core);
fail_if (strcmp(policy->governor, "userspace") != 0, "cannot set cpufreq policy to userspace");
}
freq_list = cpufreq_get_available_frequencies(act->core);
data->freq_count = create_freq_array(freq_list, &data->freq_array);
fail_if(data->freq_count < 1, "cannot get frequency list");
act->value = act->set_value = cpufreq_get_freq_kernel(act->core);
data->cur_index = get_freq_index(data, act->value);
return 0;
fail:
return -1;
}
static int get_hardware_limits(unsigned int cpu) {
if (cpufreq_get_hardware_limits(cpu, &min, &max))
return -EINVAL;
printf("Your frequency limits is:\n");
printf("MIN: %luMHZ and MAX:%luMHZ\n", min,max);
return 0;
}
GkrellmMonitor* gkrellm_init_plugin(void)
{
/* If this next call is made, the background and krell images for this
plugin can be custom themed by putting bg_meter.png or krell.png in the
subdirectory STYLE_NAME of the theme directory. Text colors (and
other things) can also be specified for the plugin with gkrellmrc
lines like: StyleMeter STYLE_NAME.textcolor orange black shadow
If no custom theming has been done, then all above calls using
style_id will be equivalent to style_id = DEFAULT_STYLE_ID.
*/
pGK = gkrellm_ticks();
style_id = gkrellm_add_meter_style(&plugin_mon, STYLE_NAME);
monitor = &plugin_mon;
/* determine number of cpus */
for( ncpu = 0; cpufreq_get_freq_kernel(ncpu)>0; ++ncpu )
;
ncpu = ncpu > NCPU_MAX ? NCPU_MAX : ncpu;
/* determine maximal frequency */
unsigned int cpu;
for ( cpu = 0; cpu<ncpu; ++cpu) {
unsigned long khz_min = 0;
unsigned long khz_max_i = 0;
cpufreq_get_hardware_limits( cpu, &khz_min, &khz_max_i );
khz_max = khz_max < khz_max_i ? khz_max_i : khz_max;
}
read_khz();
strcpy(empty, "");
if (gov_enable_current) {
read_governors();
} else {
for ( cpu=0; cpu<ncpu; ++cpu ) {
strcpy(governor[cpu], "");
}
}
return &plugin_mon;
}
JNIEXPORT jint JNICALL Java_platforms_x86_X86_1DVFS_getHardwareLimits
(JNIEnv *env, jobject obj, jint cpu)
{
unsigned long min, max;
jclass cls;
jfieldID fid;
int ret;
ret = cpufreq_get_hardware_limits((unsigned int)cpu, &min, &max);
if (ret < 0)
return ret;
cls = (*env)->GetObjectClass(env, obj);
fid = (*env)->GetFieldID(env, cls, "minFreq", "J");
(*env)->SetLongField(env, obj, fid, min);
fid = (*env)->GetFieldID(env, cls, "maxFreq", "J");
(*env)->SetLongField(env, obj, fid, max);
(*env)->DeleteLocalRef(env, cls);
return ret;
}
static void cpu_desc_summary (struct cpu_desc *cpudesc)
{
printf ("-= CPU Characteristics =-\n");
print_s("Architecture:", cpu_desc_get_architecture (cpudesc));
int cpu_mode = cpu_desc_get_mode (cpudesc);
if (cpu_mode)
{
char mbuf[32], *p = mbuf;
if (cpu_mode & MODE_32BIT)
{
strcpy (p, "32-bit, ");
p += 8;
}
if (cpu_mode & MODE_64BIT)
{
strcpy (p, "64-bit, ");
p += 8;
}
*(p - 2) = '\0';
print_s("CPU op-mode(s):", mbuf);
}
#if !defined(WORDS_BIGENDIAN)
print_s("Byte Order:", "Little Endian");
#else
print_s("Byte Order:", "Big Endian");
#endif
int cpu, ncpus = cpu_desc_get_ncpus (cpudesc);
print_d("CPU(s):", ncpus);
unsigned int nsockets, ncores, nthreads;
get_cputopology_read (&nsockets, &ncores, &nthreads);
print_u("Thread(s) per core:", nthreads);
print_u("Core(s) per socket:", ncores);
print_u("Socket(s):", nsockets);
print_s("Vendor ID:", cpu_desc_get_vendor (cpudesc));
print_s("CPU Family:", cpu_desc_get_family (cpudesc));
print_s("Model:", cpu_desc_get_model (cpudesc));
print_s("Model name:", cpu_desc_get_model_name (cpudesc));
for (cpu = 0; cpu < ncpus; cpu++)
{
printf ("-CPU%d-\n", cpu);
bool cpu_hot_pluggable = get_processor_is_hot_pluggable (cpu);
int cpu_online = get_processor_is_online (cpu);
print_s ("CPU is Hot Pluggable:", cpu_hot_pluggable ?
(cpu_online ? "yes (online)" : "yes (offline)") : "no");
unsigned long latency = cpufreq_get_transition_latency (cpu);
if (latency)
print_s("Maximum Transition Latency:",
cpufreq_duration_to_string (latency));
unsigned long freq_kernel = cpufreq_get_freq_kernel (cpu);
if (freq_kernel > 0)
print_s("Current CPU Frequency:", cpufreq_freq_to_string (freq_kernel));
struct cpufreq_available_frequencies *cpufreqs, *curr;
cpufreqs = curr = cpufreq_get_available_freqs (cpu);
if (curr)
{
print_key_s("Available CPU Frequencies:");
while (curr)
{
printf ("%s ",
cpufreq_freq_to_string
(cpufreq_get_available_freqs_value (curr)));
curr = cpufreq_get_available_freqs_next (curr);
}
printf ("\n");
cpufreq_available_frequencies_unref(cpufreqs);
}
unsigned long freq_min, freq_max;
if (0 == cpufreq_get_hardware_limits (cpu, &freq_min, &freq_max))
{
char *min_s = cpufreq_freq_to_string (freq_min),
*max_s = cpufreq_freq_to_string (freq_max);
print_range_s("Hardware Limits:", min_s, max_s);
free (min_s);
free (max_s);
}
char *freq_governor = cpufreq_get_governor (cpu);
if (freq_governor)
{
print_s ("CPU Freq Current Governor:", freq_governor);
free (freq_governor);
}
char *freq_governors = cpufreq_get_available_governors (cpu);
if (freq_governors)
{
print_s ("CPU Freq Available Governors:", freq_governors);
free (freq_governors);
}
char *freq_driver = cpufreq_get_driver (cpu);
if (freq_driver)
{
print_s ("CPU Freq Driver:", freq_driver);
free (freq_driver);
}
}
char *cpu_virtflag = cpu_desc_get_virtualization_flag (cpudesc);
if (cpu_virtflag)
print_s("Virtualization:", cpu_virtflag);
}
int main(int argc, char *argv[])
{
struct timespec ts,ts1;
int i,ncpu;
int idcpu;
unsigned long freq[8];
XEvent event;
char gov[20];
char drv[20],*ptr,*endptr;
char prg[LN_PATH];
ts.tv_sec=0;
ts.tv_nsec=DELAY;
prg[0]=0;
idcpu=0;
for(i=0;i<MAX_CPU;i++)
freq[i]=0;
if(argc >1)
{
for (i=1; i<=argc; i++)
{
if (!strcmp(argv[i], "-v"))
{
printf(WMCPUFREQ_VERSION);
exit(0);
}
if (!strcmp(argv[i], "-exe"))
{
if(strlen(argv[i+1]) < LN_PATH )
strcpy(prg,argv[i+1]);
break;
}
if (!strcmp(argv[i], "-cpuid"))
{
if(strlen(argv[i+1]) < LN_PATH )
idcpu=strtol(argv[i+1],&endptr,0);
printf("cpuid= %d \n",idcpu);
break;
}
printf("only -v, -exe, -cpuid supported \n");
exit(0);
}
}
/* basic checks */
if ( idcpu < 0 )
{
printf("cpuid < 0 \n");
exit(-1);
}
/* get driver name (guess all cpu have the same driver) */
ptr=cpufreq_get_driver(cpu);
if(!ptr)
{
printf("no driver found \n");
exit(-1);
}
strcpy(drv,ptr);
cpufreq_put_driver(ptr);
/* get number of cpu (0=cpu0, 1=cpu1 ...) */
ncpu=-1;
for(i=0;i<MAX_CPU;i++)
{
if( cpufreq_cpu_exists(idcpu+i) ==0)
{
printf("cpuid %d found\n",idcpu+i);
ncpu=i;
}
}
switch ( ncpu ) {
case -1:
printf("no cpuid found \n");
exit(-1);
case 0:
wm_xpm=wmcpufreq_master_xpm_1;
wm_bits=wmcpufreq_mask_bits_1;
break;
case 1:
wm_xpm=wmcpufreq_master_xpm_2;
wm_bits=wmcpufreq_mask_bits_2;
break;
case 2:
wm_xpm=wmcpufreq_master_3;
wm_bits=wmcpufreq_mask_3_bits;
break;
case 3:
wm_xpm=wmcpufreq_master_3;
wm_bits=wmcpufreq_mask_3_bits;
break;
default:
printf("no yet implemented: cpuid %d \n",ncpu);
exit(-1);
break;
}
/* guess every cpu has the same limits */
if(cpufreq_get_hardware_limits(cpu, &f_min, &f_max))
{
printf("can't determine hardware limits \n");
exit(-1);
}
openXwindow(argc,argv,
wm_xpm,
(char*)wm_bits,
wmcpufreq_mask_width,
wmcpufreq_mask_height);
while(1)
{
/* Process any pending X events */
while(XPending(display))
{
XNextEvent(display, &event);
switch(event.type)
{
case Expose:
RedrawWindow();
break;
case ButtonPress:
if(strlen(prg))
execCommand(prg);
break;
case ButtonRelease:
break;
}
}
RedrawWindow();
/* get info */
for(i=0;i<=ncpu;i++)
freq[i]=cpufreq_get_freq_kernel(i+idcpu);
policy=cpufreq_get_policy(cpu);
strcpy(gov,policy->governor);
max=policy->max;
min=policy->min;
cpufreq_put_policy(policy);
/* show info */
show_mhz(freq,ncpu);
if (ncpu==0)
show_driver(drv);
show_governor(gov);
/* delay */
nanosleep(&ts,&ts1);
}
}
