Performance Counters

Detailed Description

CPU performance counters (PCM) integration and scoped collectors.

Collaboration diagram for Performance Counters:

Files
file	counters.hpp
	Performance counter snapshots and scoped collectors.

Classes
struct	guanaqo::pcm::ThreadPerfCounters
struct	guanaqo::pcm::ScopedCounters< F >
	Pins the thread to the current CPU and records a snapshot of performance events. More...

Functions
std::unique_ptr< detail::ScopedCounters >	guanaqo::pcm::start_counters ()
	May return null if PCM is not available.
void	guanaqo::pcm::disable_counters ()
	Disables performance counters globally. Blocks until all active counters have stopped.
void	guanaqo::pcm::enable_counters ()
	Enables performance counters globally.
template<class F>
	guanaqo::pcm::ScopedCounters (F &&) -> ScopedCounters< F >
template<class F>
	guanaqo::pcm::ScopedCounters (F &) -> ScopedCounters< F & >

---

Class Documentation

guanaqo::pcm::ThreadPerfCounters

struct guanaqo::pcm::ThreadPerfCounters

Collaboration diagram for guanaqo::pcm::ThreadPerfCounters:

Class Members
uint64_t	instructions = 0
uint64_t	cycles = 0
uint64_t	ref_cycles = 0
uint64_t	l2_misses = 0
uint64_t	l2_hits = 0
uint64_t	l3_misses = 0
uint64_t	branch_misses = 0
uint64_t	all_slots = 0
uint64_t	frontend_bound_slots = 0
uint64_t	backend_bound_slots = 0
uint64_t	bad_speculation_slots = 0
uint64_t	retiring_slots = 0
uint64_t	mem_bound_slots = 0
uint64_t	fetch_lat_slots = 0

Function Documentation

start_counters()

std::unique_ptr< detail::ScopedCounters > guanaqo::pcm::start_counters

(

)

#include <guanaqo/pcm/counters.hpp>

May return null if PCM is not available.

Definition at line 398 of file counters.cpp.

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disable_counters()

void guanaqo::pcm::disable_counters

(

)

#include <guanaqo/pcm/counters.hpp>

Disables performance counters globally. Blocks until all active counters have stopped.

Definition at line 389 of file counters.cpp.

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enable_counters()

void guanaqo::pcm::enable_counters

(

)

#include <guanaqo/pcm/counters.hpp>

Enables performance counters globally.

Definition at line 394 of file counters.cpp.

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ScopedCounters() [1/2]

template<class F>

guanaqo::pcm::ScopedCounters

(

F &&

)

-> ScopedCounters< F >

#include <guanaqo/pcm/counters.hpp>

ScopedCounters() [2/2]

template<class F>

guanaqo::pcm::ScopedCounters

(

F &

)

-> ScopedCounters< F & >

#include <guanaqo/pcm/counters.hpp>