Repository navigation
Memory leak when PythonEngine.Initialize/Shutdown is called in a loop #499
Description
Environment
- Pythonnet version: 2.3.0
- Python version: 3.6.0
- Operating System: Win7 x64
Details
Hello all together,
i started to use pythonnet for my application. I discovered a memory leak. I reduced my code to this to identify the leak. It appears that Python.Shutdown() does not clear all references and memory. Here is a picture of my memory diagnostics. Do i miss something? Maybe someone of you has some info.
Here is my c# code:
static void Main(string[] args)
{
for (int i = 0; i < 10000; i++)
{
Console.WriteLine($"Cycle: {i}");
Console.WriteLine($"Status: {PythonEngine.IsInitialized}");
if (!PythonEngine.IsInitialized)
{
Console.WriteLine("Initialize");
PythonEngine.Initialize();
}
Console.WriteLine($"Status: {PythonEngine.IsInitialized}");
if (PythonEngine.IsInitialized)
{
Console.WriteLine("Shutdown");
PythonEngine.Shutdown();
}
Console.WriteLine($"Status: {PythonEngine.IsInitialized}");
}
Console.ReadLine();
}
Activity
filmor commentedon Jul 6, 2017
Can you check this against
master?dmitriyse commentedon Sep 6, 2017
Flat Py_Initialize/ Py_Finalize call cylce will produce memory leak, it's directly described in the Python C Api documentation.
For example each run of all Python.EmbeddingTest, eats 5mb of memory. It's more python itself. Nothing to do with this.
If you have larger memory leak, please try this branch #532
This PR reduces memory leaks of a working Python.Engine.