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@ -8,11 +8,18 @@
# About
Lightweight profiler library for c++
Lightweight profiler library for c++
You can profile any function in you code. Furthermore this library provide measuring time of any block of code.
Also the library can capture system's context switch events between threads. Captured information includes duration,
target thread id, thread owner process id, thread owner process name.
For example, information for 12 millions of blocks is using less than 300Mb of memory.
Working profiler slows your application execution for only 1-2%.
Disabled profiler will not affect your application execution in any way. You can leave it in your Release build
and enable it in run-time at any moment during application launch to see what is happening at the moment.
Also the library can capture system's context switch events between threads. Context switch information includes
duration, target thread id, thread owner process id, thread owner process name.
You can see the results of measuring in simple GUI application which provides full statistics and renders beautiful time-line.
# Build
@ -41,7 +48,8 @@ If you are using QtCreator IDE you can just open `CMakeLists.txt` file in root d
If you are using Visual Studio you can generate solution by cmake generator command.
### Way 1
Specify path to cmake scripts in Qt5 dir (usually in lib/cmake subdir), for example:
Specify path to cmake scripts in Qt5 dir (usually in lib/cmake subdir) and execute cmake generator command,
for example:
```batch
$ mkdir build
$ cd build
@ -70,7 +78,7 @@ This code snippet will generate block with function name and Magenta color:
#include <profiler/profiler.h>
void frame() {
EASY_FUNCTION(profiler::colors::Magenta);
EASY_FUNCTION(profiler::colors::Magenta); // Magenta block with name "frame"
prepareRender();
calculatePhysics();
}
@ -78,19 +86,19 @@ void frame() {
To profile any block you may do this as following.
You can specify these blocks also with Google material design colors or just set name of the block
(in this case it will have default color which is Amber100):
(in this case it will have default color which is `Amber100`):
```cpp
#include <profiler/profiler.h>
void frame() {
// some code
EASY_BLOCK("Calculating sum");
EASY_BLOCK("Calculating sum"); // Block with default color
int sum = 0;
for (int i = 0; i < 10; ++i)
sum += i;
EASY_END_BLOCK;
EASY_BLOCK("Calculating multiplication", profiler::colors::Blue50);
EASY_BLOCK("Calculating multiplication", profiler::colors::Blue500); // Blue block
int mul = 1;
for (int i = 1; i < 11; ++i)
mul *= i;
@ -98,13 +106,13 @@ void frame() {
}
```
You can also use your color set. EasyProfiler is using standard 32-bit ARGB color format.
You can also use your own colors. easy_profiler is using standard 32-bit ARGB color format.
Example:
```cpp
#include <profiler/profiler.h>
void foo() {
EASY_FUNCTION(0xfff080aa);
EASY_FUNCTION(0xfff080aa); // Function block with custom color
// some code
}
```