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statistics gathering

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This commit is contained in:
Victor Zarubkin 2016-06-26 02:15:39 +03:00
parent 94add93883
commit 36ec598697
2 changed files with 78 additions and 45 deletions
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31
include/profiler/reader.h
View File

@ -33,25 +33,40 @@ namespace profiler {
struct BlockStatistics
{
::profiler::timestamp_t total_duration;
::profiler::timestamp_t min_duration;
::profiler::timestamp_t max_duration;
::profiler::timestamp_t average_duration;
::profiler::calls_number_t calls_number;
::profiler::timestamp_t total_duration; ///< Summary duration of all block calls
::profiler::timestamp_t min_duration; ///< Cached block->duration() value. TODO: Remove this if memory consumption will be too high
::profiler::timestamp_t max_duration; ///< Cached block->duration() value. TODO: Remove this if memory consumption will be too high
const ::profiler::SerilizedBlock* min_duration_block; ///< Will be used in GUI to jump to the block with min duration
const ::profiler::SerilizedBlock* max_duration_block; ///< Will be used in GUI to jump to the block with max duration
::profiler::calls_number_t calls_number; ///< Block calls number
BlockStatistics() : total_duration(0), min_duration(0), max_duration(0), average_duration(0), calls_number(1)
// TODO: It is better to replace SerilizedBlock* with BlocksTree*, but this requires to store pointers in children list.
BlockStatistics()
: total_duration(0)
, min_duration(0)
, max_duration(0)
, min_duration_block(nullptr)
, max_duration_block(nullptr)
, calls_number(1)
{
}
BlockStatistics(::profiler::timestamp_t _duration)
BlockStatistics(::profiler::timestamp_t _duration, const ::profiler::SerilizedBlock* _block)
: total_duration(_duration)
, min_duration(_duration)
, max_duration(_duration)
, average_duration(_duration)
, min_duration_block(_block)
, max_duration_block(_block)
, calls_number(1)
{
}
inline ::profiler::timestamp_t average_duration() const
{
return total_duration / calls_number;
}
}; // END of struct BlockStatistics.
inline void release(BlockStatistics*& _stats)

92
src/reader.cpp
View File

@ -99,6 +99,41 @@ typedef ::std::unordered_map<::std::string, ::profiler::BlockStatistics*> StatsM
//////////////////////////////////////////////////////////////////////////
void update_statistics(StatsMap& _stats_map, ::profiler::SerilizedBlock* _current, ::profiler::BlockStatistics*& _stats)
{
auto duration = _current->block()->duration();
StatsMap::key_type key(_current->getBlockName());
auto it = _stats_map.find(key);
if (it != _stats_map.end())
{
_stats = it->second;
++_stats->calls_number;
_stats->total_duration += duration;
//if (duration > _stats->max_duration_block->block()->duration())
if (duration > _stats->max_duration)
{
_stats->max_duration_block = _current;
_stats->max_duration = duration;
}
//if (duration < _stats->min_duration_block->block()->duration())
if (duration < _stats->min_duration)
{
_stats->min_duration_block = _current;
_stats->min_duration = duration;
}
}
else
{
_stats = new ::profiler::BlockStatistics(duration, _current);
_stats_map.insert(::std::make_pair(key, _stats));
}
}
//////////////////////////////////////////////////////////////////////////
extern "C"{
int fillTreesFromFile(const char* filename, thread_blocks_tree_t& threaded_trees, bool gather_statistics)
{
@ -108,7 +143,7 @@ extern "C"{
return -1;
}
StatsMap overall_statistics;
StatsMap overall_statistics, frame_statistics;
int blocks_counter = 0;
@ -132,35 +167,6 @@ extern "C"{
tree.node = new profiler::SerilizedBlock(sz, data);
blocks_counter++;
if (gather_statistics)
{
auto duration = tree.node->block()->duration();
StatsMap::key_type key(tree.node->getBlockName());
auto it = overall_statistics.find(key);
if (it != overall_statistics.end())
{
tree.total_statistics = it->second;
++tree.total_statistics->calls_number;
tree.total_statistics->total_duration += duration;
if (duration > tree.total_statistics->max_duration)
{
tree.total_statistics->max_duration = duration;
}
if (duration < tree.total_statistics->min_duration)
{
tree.total_statistics->min_duration = duration;
}
}
else
{
tree.total_statistics = new ::profiler::BlockStatistics(duration);
overall_statistics.insert(::std::make_pair(key, tree.total_statistics));
}
}
if (root.children.empty()){
root.children.push_back(std::move(tree));
}
@ -176,6 +182,19 @@ extern "C"{
root.children.erase(lower, root.children.end());
if (gather_statistics)
{
frame_statistics.clear();
//frame_statistics.reserve(tree.children.size()); // this gives slow-down on Windows
//frame_statistics.reserve(tree.children.size() * 2); // this gives no speed-up on Windows
// TODO: check this behavior on Linux
for (auto& child : tree.children)
{
update_statistics(frame_statistics, child.node, child.frame_statistics);
}
}
}
root.children.push_back(std::move(tree));
@ -184,17 +203,16 @@ extern "C"{
//delete[] data;
}
if (gather_statistics)
{
for (auto it = overall_statistics.begin(), end = overall_statistics.end(); it != end; ++it)
if (gather_statistics)
{
it->second->average_duration = it->second->total_duration / it->second->calls_number;
BlocksTree& current = root.children.back();
update_statistics(overall_statistics, current.node, current.total_statistics);
}
// No need to delete BlockStatistics instances - they will be deleted on BlocksTree destructors
}
}
// No need to delete BlockStatistics instances - they will be deleted on BlocksTree destructors
return blocks_counter;
}