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CPUUsage (FreeBSD): count cpu cores separately

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李通洲
2023-10-10 13:40:00 +08:00
committed by Carter Li
parent c96d21c7c0
commit 6b008ed93b
1 changed files with 21 additions and 8 deletions
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src/detection/cpuusage/cpuusage_bsd.c
+21 -8
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@@ -1,19 +1,32 @@
#include "detection/cpuusage/cpuusage.h"
#include "util/mallocHelper.h"
#include <sys/types.h>
#include <sys/user.h>
#include <sys/sysctl.h>
#include <sys/resource.h>
#include <stdlib.h>
const char* ffGetCpuUsageInfo(uint64_t* inUseAll, uint64_t* totalAll)
{
// interrupt processing, user processes, system processing, lock spinning, and idling
uint64_t cpTime[5];
size_t neededLength = sizeof(cpTime);
if(sysctlbyname("kern.cp_time", cpTime, &neededLength, NULL, 0) != 0)
return "sysctlbyname(kern.cp_time) failed";
size_t neededLength = 0;
if(sysctlbyname("kern.cp_times", NULL, &neededLength, NULL, 0) != 0)
return "sysctlbyname(kern.cp_times, NULL) failed";
*inUseAll = cpTime[0] + cpTime[1] + cpTime[2] + cpTime[3];
*totalAll = *inUseAll + cpTime[4];
uint32_t coreCount = neededLength / (CPUSTATES * sizeof(uint64_t));
assert(coreCount > 0);
FF_AUTO_FREE uint64_t (*cpTimes)[CPUSTATES] = malloc(neededLength);
if(sysctlbyname("kern.cp_times", cpTimes, &neededLength, NULL, 0) != 0)
return "sysctlbyname(kern.cp_times, cpTime) failed";
for (uint32_t i = 0; i < coreCount; ++i)
{
uint64_t* cpTime = cpTimes[i];
uint64_t inUse = cpTime[CP_USER] + cpTime[CP_NICE] + cpTime[CP_SYS];
uint64_t total = cpTime[CP_INTR] + cpTime[CP_IDLE];
*inUseAll += inUse;
*totalAll += total;
}
return NULL;
}