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testing testing...

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This commit is contained in:
Victor Olin 2023-05-01 14:36:44 +02:00
parent fda9e6728f
commit e51ba7679b
10 changed files with 933 additions and 42 deletions
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src/GC/lib/profiler.cpp Normal file
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#include <ctime>
#include <cstring>
#include <iostream>
#include <fstream>
#include <time.h>
#include <vector>
#include <unistd.h>
#include <stdexcept>
#include "chunk.hpp"
#include "event.hpp"
#include "profiler.hpp"
// #define MAC_OS
namespace GC
{
Profiler& Profiler::the()
{
static Profiler instance;
return instance;
}
RecordOption Profiler::log_options()
{
Profiler &prof = Profiler::the();
return prof.flags;
}
void Profiler::set_log_options(RecordOption flags)
{
Profiler &prof = Profiler::the();
prof.flags = flags;
}
void Profiler::record_data(GCEvent *event)
{
Profiler &prof = Profiler::the();
prof.m_events.push_back(event);
if (prof.m_last_prof_event->m_type == event->get_type())
prof.m_last_prof_event->m_n++;
else
{
prof.m_prof_events.push_back(prof.m_last_prof_event);
prof.m_last_prof_event = new ProfilerEvent(event->get_type());
}
}
/**
* Records an event independent of a chunk.
*
* @param type The type of event to record.
*/
void Profiler::record(GCEventType type)
{
Profiler &prof = Profiler::the();
if (prof.flags & type)
Profiler::record_data(new GCEvent(type));
// auto event = new GCEvent(type);
// auto profiler = Profiler::the();
// profiler.m_events.push_back(event);
}
/**
* This overload is only used with an AllocStart
* event.
*
* @param type The type of event to record.
*
* @param size The size of requested to alloc().
*/
void Profiler::record(GCEventType type, size_t size)
{
Profiler &prof = Profiler::the();
if (prof.flags & type)
Profiler::record_data(new GCEvent(type, size));
// auto event = new GCEvent(type, size);
// auto profiler = Profiler::the();
// profiler.m_events.push_back(event);
}
void Profiler::dump_trace()
{
Profiler &prof = Profiler::the();
if (prof.flags & FunctionCalls)
dump_prof_trace();
else
dump_chunk_trace();
}
/**
* Records an event related to a chunk.
*
* @param type The type of event to record.
*
* @param chunk The chunk the event is connected
* to.
*/
void Profiler::record(GCEventType type, Chunk *chunk)
{
// Create a copy of chunk to store in the profiler
// because in free() chunks are deleted and cannot
// be referenced by the profiler. These copied
// chunks are deleted by the profiler on dispose().
Profiler &prof = Profiler::the();
if (prof.flags & type)
{
auto chunk_copy = new Chunk(chunk);
auto event = new GCEvent(type, chunk_copy);
Profiler::record_data(event);
}
// auto profiler = Profiler::the();
// profiler.m_events.push_back(event);
}
void Profiler::dump_prof_trace()
{
Profiler &prof = Profiler::the();
prof.m_prof_events.push_back(prof.m_last_prof_event);
auto start = prof.m_prof_events.begin();
auto end = prof.m_prof_events.end();
char buffer[22];
std::ofstream fstr = prof.create_file_stream();
while (start != end)
{
auto event = *start++;
fstr << "\n--------------------------------\n"
<< Profiler::type_to_string(event->m_type)
<< "\nTimes:\t" << event->m_n;
}
fstr << "\n--------------------------------";
}
/**
* Prints the history of the recorded events
* to a log file in the /tests/logs folder.
*/
void Profiler::dump_chunk_trace()
{
Profiler &prof = Profiler::the();
auto start = prof.m_events.begin();
auto end = prof.m_events.end();
// Buffer for timestamp
char buffer[22];
while (start != end)
{
auto event = *start++;
auto e_type = event->get_type();
prof.print_chunk_event(event, buffer);
}
}
void Profiler::print_chunk_event(GCEvent *event, char buffer[22])
{
Profiler &prof = Profiler::the();
// File output stream
std::ofstream fstr = prof.create_file_stream();
std::time_t tt = event->get_time_stamp();
std::tm *btm = std::localtime(&tt);
std::strftime(buffer, 22, "%a %T", btm);
fstr << "--------------------------------\n"
<< buffer
<< "\nEvent:\t" << Profiler::type_to_string(event->get_type());
// event->type_to_string();
const Chunk *chunk = event->get_chunk();
if (event->get_type() == AllocStart)
{
fstr << "\nSize: " << event->get_size();
}
else if (chunk)
{
fstr << "\nChunk: " << chunk->m_start
<< "\n Size: " << chunk->m_size
<< "\n Mark: " << chunk->m_marked;
}
fstr << "\n";
}
/**
* Deletes the profiler singleton and all
* the events recorded after recording
* the ProfilerDispose event and dumping
* the history to a log file.
*/
void Profiler::dispose()
{
Profiler::record(ProfilerDispose);
Profiler::dump_trace();
}
/**
* Creates a filestream for the future
* log file to print the history to in
* dump_trace().
*
* @returns The output stream to the file.
*/
std::ofstream Profiler::create_file_stream()
{
// get current time
std::time_t tt = std::time(NULL);
std::tm *ptm = std::localtime(&tt);
// format to string
char buffer[32];
std::strftime(buffer, 32, "/log_%a_%H_%M_%S.txt", ptm);
std::string filename(buffer);
// const std::string ABS_PATH = "/home/virre/dev/systemF/org/language/src/GC/";
// // const std::string ABS_PATH = "/Users/valtermiari/Desktop/DV/Bachelors/code/language/src/GC";
// std::string fullpath = ABS_PATH + filename;
const std::string fullpath = get_log_folder() + filename;
std::ofstream fstr(fullpath);
return fstr;
}
/**
* This function retrieves the path to the folder
* of the executable to use for log files.
*
* @returns The path to the logs folder.
*
* @throws A runtime error if the call
* to readlink() fails.
*/
std::string Profiler::get_log_folder()
{
#ifndef MAC_OS
char buffer[1024];
// chars read from path
ssize_t len = readlink("/proc/self/exe", buffer, sizeof(buffer)-1);
// if readlink fails
if (len == -1)
{
throw std::runtime_error(std::string("Error: readlink failed on '/proc/self/exe/'"));
}
buffer[len] = '\0';
// convert to string for string operators
auto path = std::string(buffer);
// remove filename
size_t last_slash = path.find_last_of('/');
std::string folder = path.substr(0, last_slash);
#else
auto folder = std::string("/Users/valtermiari/Desktop/DV/Bachelors/code/language/src/GC/tests");
#endif
return folder + "/logs";
}
const char *Profiler::type_to_string(GCEventType type)
{
switch (type)
{
case HeapInit: return "HeapInit";
case AllocStart: return "AllocStart";
case CollectStart: return "CollectStart";
case MarkStart: return "MarkStart";
case ChunkMarked: return "ChunkMarked";
case ChunkSwept: return "ChunkSwept";
case ChunkFreed: return "ChunkFreed";
case NewChunk: return "NewChunk";
case ReusedChunk: return "ReusedChunk";
case ProfilerDispose: return "ProfilerDispose";
case SweepStart: return "SweepStart";
case FreeStart: return "FreeStart";
default: return "[Unknown]";
}
}
}