mirror of
https://github.com/matrix-construct/construct
synced 2024-11-16 15:00:51 +01:00
101 lines
2.5 KiB
C++
101 lines
2.5 KiB
C++
// Matrix Construct
|
|
//
|
|
// Copyright (C) Matrix Construct Developers, Authors & Contributors
|
|
// Copyright (C) 2016-2019 Jason Volk <jason@zemos.net>
|
|
//
|
|
// Permission to use, copy, modify, and/or distribute this software for any
|
|
// purpose with or without fee is hereby granted, provided that the above
|
|
// copyright notice and this permission notice is present in all copies. The
|
|
// full license for this software is available in the LICENSE file.
|
|
|
|
#pragma once
|
|
#define HAVE_IRCD_PROF_H
|
|
|
|
namespace ircd::prof
|
|
{
|
|
struct init;
|
|
struct type;
|
|
struct event;
|
|
enum dpl :uint8_t;
|
|
using group = std::vector<std::unique_ptr<event>>;
|
|
IRCD_EXCEPTION(ircd::error, error)
|
|
IRCD_OVERLOAD(sample)
|
|
|
|
// Samples
|
|
uint64_t cycles(); ///< Monotonic reference cycles (since system boot)
|
|
uint64_t time_user(); ///< Nanoseconds of CPU time in userspace.
|
|
uint64_t time_kern(); ///< Nanoseconds of CPU time in kernelland.
|
|
uint64_t time_real(); ///< Nanoseconds of CPU time real.
|
|
uint64_t time_proc(); ///< Nanoseconds of CPU time for process.
|
|
uint64_t time_thrd(); ///< Nanoseconds of CPU time for thread.
|
|
|
|
// Control panel
|
|
void stop(group &);
|
|
void start(group &);
|
|
void reset(group &);
|
|
|
|
// Config
|
|
extern conf::item<bool> enable;
|
|
}
|
|
|
|
#include "x86.h"
|
|
#include "vg.h"
|
|
#include "syscall_timer.h"
|
|
#include "instructions.h"
|
|
#include "resource.h"
|
|
#include "times.h"
|
|
#include "system.h"
|
|
|
|
// Exports to ircd::
|
|
namespace ircd
|
|
{
|
|
using prof::cycles;
|
|
}
|
|
|
|
/// Type descriptor for prof events. This structure is used to aggregate
|
|
/// information that describes a profiling event type, including whether
|
|
/// the kernel or the user is being profiled (dpl), the principal counter
|
|
/// type being profiled (counter) and any other contextual attributes.
|
|
struct ircd::prof::type
|
|
{
|
|
enum dpl dpl {0};
|
|
uint8_t type_id {0};
|
|
uint8_t counter {0};
|
|
uint8_t cacheop {0};
|
|
uint8_t cacheres {0};
|
|
|
|
type(const event &);
|
|
type(const enum dpl & = (enum dpl)0,
|
|
const uint8_t &attr_type = 0,
|
|
const uint8_t &counter = 0,
|
|
const uint8_t &cacheop = 0,
|
|
const uint8_t &cacheres = 0);
|
|
};
|
|
|
|
enum ircd::prof::dpl
|
|
:std::underlying_type<ircd::prof::dpl>::type
|
|
{
|
|
KERNEL = 0,
|
|
USER = 1,
|
|
};
|
|
|
|
struct ircd::prof::init
|
|
{
|
|
init();
|
|
~init() noexcept;
|
|
};
|
|
|
|
#if defined(__x86_64__) || defined(__i386__)
|
|
extern inline uint64_t
|
|
__attribute__((flatten, always_inline, gnu_inline, artificial))
|
|
ircd::prof::cycles()
|
|
{
|
|
return x86::rdtsc();
|
|
}
|
|
#else
|
|
ircd::prof::cycles()
|
|
{
|
|
static_assert(false, "Select reference cycle counter for platform.");
|
|
return 0;
|
|
}
|
|
#endif
|