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handle cpu frequencies right

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This commit is contained in:
Linus Dierheimer
2021-06-16 11:47:32 +02:00
parent 27915127a8
commit 98f420ad3d
1 changed files with 18 additions and 15 deletions
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src/modules/cpu.c
+18 -15
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@@ -5,30 +5,33 @@
#define FF_CPU_MODULE_NAME "CPU"
#define FF_CPU_NUM_FORMAT_ARGS 14
static double parseGhz(FFstrbuf* content)
static double parseHz(FFstrbuf* content)
{
if(content->length == 0)
return 0;
uint32_t herz;
if(sscanf(content->chars, "%u", &herz) != 1)
double herz;
if(sscanf(content->chars, "%lf", &herz) != 1)
return 0;
herz /= 1000; //to MHz
return (double) herz / 1000.0; //to GHz
return herz;
}
static double getGhz(const char* file)
static double getGhz(const char* policyFile, const char* cpuFile)
{
FFstrbuf content;
ffStrbufInit(&content);
ffGetFileContent(file, &content);
double ghz = parseGhz(&content);
ffGetFileContent(policyFile, &content);
if(content.length == 0)
ffGetFileContent(cpuFile, &content);
double herz = parseHz(&content);
ffStrbufDestroy(&content);
return ghz;
herz /= 1000.0; //to MHz
return herz / 1000.0; //to GHz
}
void ffPrintCPU(FFinstance* instance)
@@ -75,14 +78,14 @@ void ffPrintCPU(FFinstance* instance)
fclose(cpuinfo);
double procGhz = parseGhz(&procGhzString);
double procGhz = parseHz(&procGhzString) / 1000.0; //to GHz
ffStrbufDestroy(&procGhzString);
double biosLimit = getGhz("/sys/devices/system/cpu/cpu0/cpufreq/bios_limit");
double scalingMaxFreq = getGhz("/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq");
double scalingMinFreq = getGhz("/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq");
double infoMaxFreq = getGhz("/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq");
double infoMinFreq = getGhz("/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_min_freq");
double biosLimit = getGhz("/sys/devices/system/cpu/cpufreq/policy0/bios_limit", "/sys/devices/system/cpu/cpu0/cpufreq/bios_limit");
double scalingMaxFreq = getGhz("/sys/devices/system/cpu/cpufreq/policy0/scaling_max_freq", "/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq");
double scalingMinFreq = getGhz("/sys/devices/system/cpu/cpufreq/policy0/scaling_min_freq", "/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq");
double infoMaxFreq = getGhz("/sys/devices/system/cpu/cpufreq/policy0/cpuinfo_max_freq", "/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq");
double infoMinFreq = getGhz("/sys/devices/system/cpu/cpufreq/policy0/cpuinfo_min_freq", "/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_min_freq");
int numProcsOnline = get_nprocs();
int numProcsAvailable = get_nprocs_conf();