#define THOUSAND (1000.0)
#define MILLION (THOUSAND * THOUSAND)
#define BILLION (THOUSAND * MILLION)
#define TRILLION (THOUSAND * BILLION)
#define QUADRILLION (THOUSAND * TRILLION)
#define QUINTILLION (THOUSAND * QUADRILLION)
#define PERF_INVALID (~0ULL)
#define PERF_INFO(type, config) \
{ PERF_ ## config, PERF_TYPE_ ## type, PERF_COUNT_ ## config }
/* perf counters to be read */
static const perf_info_t perf_info[PERF_MAX] = {
PERF_INFO(HARDWARE, HW_CPU_CYCLES),
PERF_INFO(HARDWARE, HW_INSTRUCTIONS),
};
int perf_start(perf_t *p, const pid_t pid)
{
int i;
memset(p, 0, sizeof(perf_t));
p->perf_opened = 0;
for (i = 0; i < PERF_MAX; i++) {
p->perf_stat[i].fd = -1;
p->perf_stat[i].counter = 0;
}
#define PERF_COUNT_TP_SIGNAL_DELIVER UNRESOLVED
#define PERF_COUNT_TP_PAGE_FAULT_USER UNRESOLVED
#define PERF_COUNT_TP_PAGE_FAULT_KERNEL UNRESOLVED
#define PERF_COUNT_TP_IRQ_ENTRY UNRESOLVED
#define PERF_COUNT_TP_IRQ_EXIT UNRESOLVED
#define PERF_COUNT_TP_SOFTIRQ_ENTRY UNRESOLVED
#define PERF_COUNT_TP_SOFTIRQ_EXIT UNRESOLVED
#define PERF_COUNT_TP_RCU_UTILIZATION UNRESOLVED
#define PERF_COUNT_TP_WRITEBACK_DIRTY_INODE UNRESOLVED
#define PERF_COUNT_TP_WRITEBACK_DIRTY_PAGE UNRESOLVED
/* perf counters to be read */
static perf_info_t perf_info[STRESS_PERF_MAX + 1] = {
PERF_INFO(HARDWARE, HW_CPU_CYCLES, "CPU Cycles"),
PERF_INFO(HARDWARE, HW_INSTRUCTIONS, "Instructions"),
PERF_INFO(HARDWARE, HW_CACHE_REFERENCES, "Cache References"),
PERF_INFO(HARDWARE, HW_CACHE_MISSES, "Cache Misses"),
PERF_INFO(HARDWARE, HW_STALLED_CYCLES_FRONTEND, "Stalled Cycles Frontend"),
PERF_INFO(HARDWARE, HW_STALLED_CYCLES_BACKEND, "Stalled Cycles Backend"),
PERF_INFO(HARDWARE, HW_BRANCH_INSTRUCTIONS, "Branch Instructions"),
PERF_INFO(HARDWARE, HW_BRANCH_MISSES, "Branch Misses"),
PERF_INFO(HARDWARE, HW_BUS_CYCLES, "Bus Cycles"),
PERF_INFO(HARDWARE, HW_REF_CPU_CYCLES, "Total Cycles"),
PERF_INFO(SOFTWARE, SW_PAGE_FAULTS_MIN, "Page Faults Minor"),
PERF_INFO(SOFTWARE, SW_PAGE_FAULTS_MAJ, "Page Faults Major"),
PERF_INFO(SOFTWARE, SW_CONTEXT_SWITCHES, "Context Switches"),
PERF_INFO(SOFTWARE, SW_CPU_MIGRATIONS, "CPU Migrations"),
PERF_INFO(SOFTWARE, SW_ALIGNMENT_FAULTS, "Alignment Faults"),