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CPU: fix cpu freq detection in WSL

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`/sys/devices/system/cpu/cpufreq/policy0/` doesn't exist in WSL
This commit is contained in:
李通洲
2022-11-24 23:29:46 +08:00
parent 7da45d6c2c
commit 0ab38bb4d7
1 changed files with 27 additions and 12 deletions
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src/detection/cpu/cpu_linux.c
+27 -12
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@@ -6,7 +6,7 @@
#include <stdlib.h>
#include <unistd.h>
static void parseCpuInfo(FFCPUResult* cpu, FFstrbuf* physicalCoresBuffer)
static void parseCpuInfo(FFCPUResult* cpu, FFstrbuf* physicalCoresBuffer, FFstrbuf* cpuMHz)
{
FILE* cpuinfo = fopen("/proc/cpuinfo", "r");
if(cpuinfo == NULL)
@@ -25,6 +25,7 @@ static void parseCpuInfo(FFCPUResult* cpu, FFstrbuf* physicalCoresBuffer)
ffParsePropLine(line, "model name :", &cpu->name) ||
ffParsePropLine(line, "vendor_id :", &cpu->vendor) ||
ffParsePropLine(line, "cpu cores :", physicalCoresBuffer) ||
ffParsePropLine(line, "cpu MHz :", cpuMHz) ||
(cpu->name.length == 0 && ffParsePropLine(line, "Hardware :", &cpu->name)) //For Android devices
);
}
@@ -39,16 +40,19 @@ static double getGHz(const char* file)
{
FFstrbuf content;
ffStrbufInit(&content);
ffReadFileBuffer(file, &content);
double herz = ffStrbufToDouble(&content);
ffStrbufDestroy(&content);
if(ffAppendFileBuffer(file, &content))
{
double herz = ffStrbufToDouble(&content);
ffStrbufDestroy(&content);
//ffStrbufToDouble failed
if(herz != herz)
return 0;
//ffStrbufToDouble failed
if(herz != herz)
return 0;
herz /= 1000.0; //to MHz
return herz / 1000.0; //to GHz
herz /= 1000.0; //to MHz
return herz / 1000.0; //to GHz
}
return 0;
}
static double getFrequency(const char* info, const char* scaling)
@@ -91,7 +95,10 @@ void ffDetectCPUImpl(const FFinstance* instance, FFCPUResult* cpu, bool cached)
FFstrbuf physicalCoresBuffer;
ffStrbufInit(&physicalCoresBuffer);
parseCpuInfo(cpu, &physicalCoresBuffer);
FFstrbuf cpuMHz;
ffStrbufInit(&cpuMHz);
parseCpuInfo(cpu, &physicalCoresBuffer, &cpuMHz);
cpu->coresPhysical = ffStrbufToUInt16(&physicalCoresBuffer, 1);
@@ -104,8 +111,16 @@ void ffDetectCPUImpl(const FFinstance* instance, FFCPUResult* cpu, bool cached)
#endif
#define BP "/sys/devices/system/cpu/cpufreq/policy0/"
cpu->frequencyMin = getFrequency(BP"cpuinfo_min_freq", BP"scaling_min_freq");
cpu->frequencyMax = getFrequency(BP"cpuinfo_max_freq", BP"scaling_max_freq");
if(ffFileExists(BP, S_IFDIR))
{
cpu->frequencyMin = getFrequency(BP"cpuinfo_min_freq", BP"scaling_min_freq");
cpu->frequencyMax = getFrequency(BP"cpuinfo_max_freq", BP"scaling_max_freq");
}
else
{
cpu->frequencyMin = cpu->frequencyMax = ffStrbufToDouble(&cpuMHz) / 1000;
}
ffStrbufDestroy(&physicalCoresBuffer);
ffStrbufDestroy(&cpuMHz);
}