thelilfrog/cpufetch
1
0
Fork 0
mirror of https://github.com/Dr-Noob/cpufetch.git synced 2026-03-25 07:50:40 +01:00
Code Issues Packages Projects Releases Wiki Activity

[v1.00] Add --accurate-pp option (Linux x86_64) only. Needs more work to make it stable (add support for non-AVX, AVX512, etc)

Browse Source
This commit is contained in:
Dr-Noob
2021-09-16 15:12:34 +02:00
parent 3b7a122956
commit 2cdc31392a
7 changed files with 222 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
src/x86/cpuid.c
View File

@@ -15,8 +15,10 @@
#include "cpuid.h"
#include "cpuid_asm.h"
#include "../common/global.h"
#include "../common/args.h"
#include "apic.h"
#include "uarch.h"
#include "freq.h"
#define CPU_VENDOR_INTEL_STRING "GenuineIntel"
#define CPU_VENDOR_AMD_STRING "AuthenticAMD"
@@ -177,7 +179,7 @@ struct uarch* get_cpu_uarch(struct cpuInfo* cpu) {
return get_uarch_from_cpuid(cpu, efamily, family, emodel, model, (int)stepping);
}
int64_t get_peak_performance(struct cpuInfo* cpu, struct topology* topo, int64_t freq) {
int64_t get_peak_performance(struct cpuInfo* cpu, struct topology* topo, int64_t max_freq, bool accurate_pp) {
/*
* PP = PeakPerformance
* SP = SinglePrecision
@@ -190,6 +192,16 @@ int64_t get_peak_performance(struct cpuInfo* cpu, struct topology* topo, int64_t
* 16(If AVX512), 8(If AVX), 4(If SSE) *
*/
int64_t freq;
#ifdef __linux__
if(accurate_pp) freq = measure_avx_frequency(cpu);
else freq = max_freq;
#else
// Silence compiler warning
(void)(accurate_pp);
freq = max_freq;
#endif
//First, check we have consistent data
if(freq == UNKNOWN_FREQ) {
return -1;
@@ -376,7 +388,7 @@ struct cpuInfo* get_cpu_info() {
cpu->freq = get_frequency_info(cpu);
cpu->cach = get_cache_info(cpu);
cpu->topo = get_topology_info(cpu, cpu->cach);
cpu->peak_performance = get_peak_performance(cpu, cpu->topo, get_freq(cpu->freq));
cpu->peak_performance = get_peak_performance(cpu, cpu->topo, get_freq(cpu->freq), accurate_pp());
if(cpu->cach == NULL || cpu->topo == NULL) {
return NULL;