python memory debugging

1 files changed, 21 insertions, 0 deletions

diff --git a/software/python.page b/software/python.page
index 0fd2531..0fc3c8d 100644
--- a/software/python.page
+++ b/software/python.page
@@ -205,3 +205,24 @@ and create a `pytest.ini` like:
     norecursedirs = .svn _build tmp*
 
 Need to mock? <https://blog.fugue.co/2016-02-11-python-mocking-101.html>
+
+Debugging Memory Usage
+------------------------
+
+Most helpful tools I found were `psutil` and `pympler` (both need to be
+installed).
+
+    import os, psutil
+    process = psutil.Process(os.getpid())
+    print(process.memory_info().rss)
+    # ... do some stuff ...
+    print(process.memory_info().rss)
+
+and
+
+    from pympler import tracker
+    tr = tracker.SummaryTracker()
+    tr.print_diff()
+
+    # ... do some stuff ...
+    tr.print_diff()