/usr/include/hphp/util/boot-stats.h is in hhvm-dev 3.21.0+dfsg-2ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 | /*
+----------------------------------------------------------------------+
| HipHop for PHP |
+----------------------------------------------------------------------+
| Copyright (c) 2010-present Facebook, Inc. (http://www.facebook.com) |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
*/
#pragma once
#include <chrono>
#include <cstdint>
#include <map>
#include <memory>
#include <mutex>
#include <string>
#include <folly/Memory.h>
#include "hphp/util/compatibility.h"
namespace HPHP {
///////////////////////////////////////////////////////////////////////////////
struct ResourceUsage {
ResourceUsage() : m_wall{0}, m_cpu{0}, m_rssMb(0) {}
// Returns total usage for entire process.
static ResourceUsage sinceEpoch();
void operator=(const ResourceUsage& rhs);
ResourceUsage operator-(const ResourceUsage& rhs) const;
ResourceUsage operator+(const ResourceUsage& rhs) const;
using TimeUnit = std::chrono::nanoseconds;
TimeUnit wall() const { return m_wall; }
TimeUnit cpu() const { return m_cpu; }
int64_t rssMb() const { return m_rssMb; }
std::string toString() const;
private:
ResourceUsage(TimeUnit wall, TimeUnit cpu, int64_t rssMb)
: m_wall{wall}, m_cpu{cpu}, m_rssMb(rssMb) {}
TimeUnit m_wall;
TimeUnit m_cpu;
int64_t m_rssMb;
};
/**
* Measures execution of the different parts of HHVM startup and warmup.
*
* BootStats should be initialized once, soon after HHVM starts up, by calling
* the start() static method; it will continue collecting samples until the
* done() static method is called, once the start up process is complete.
*
* There are two ways of adding a sample:
* - BootStats::mark('foo') adds a sample for foo, using the elapsed time from
* start or from the last call to mark();
* - using an instance of the BootStats::Block class during startup
* automatically collects a sample.
*/
struct BootStats {
// Creates a new instance and starts the timer
static void start();
// Returns seconds since epoch when start() was called, or 0 if never called.
static int64_t startTimestamp() {
auto s = std::chrono::duration_cast<std::chrono::seconds>(s_start.wall());
return s.count();
}
// Stops the timer and logs information
static void done();
// Computes the time elapsed from start or from the previous call to this
// method and stores it as a sample with the given name
static void mark(const std::string& name);
struct Block {
explicit Block(const std::string& name);
~Block();
private:
std::string m_name;
ResourceUsage m_start;
};
private:
static void add(const std::string& name, const ResourceUsage value);
struct Impl;
static bool s_started;
static ResourceUsage s_start;
static std::unique_ptr<BootStats::Impl> s_instance;
};
///////////////////////////////////////////////////////////////////////////////
}
|