Simple Memory Monitor that helps to decide if it is time to dump data to disk.
Very simple memory monitor that records the percent of memory used. This can be useful if you want to dump data to disk if memory consumptions becomes too high.
Description and Usage
The MemoryMonitor class takes an interval and a memory_limit in percent.
To start recording memory usage:
from memon import MemoryMonitor import time memmon = MemoryMonitor(interval=0.1) memmon.start() memmon.start_recording() time.sleep(1) memmon.stop_recording() assert len(memmon.history) == 10
If historical data is recorded this can be used to query if memory usage will keep under the memory limit. This is done by calling:
This function makes some assumptions:
- The Python process is the main memory user on the system.
- Any big fluctuations in memory usage are because of memory allocation/deallocation of the process running the memon.
- We want to fit the average fluctuation that occurs during processing under the memory limit.
Because of these assumptions the memory_available() function calculates:
delta = max(history) - min(history) level = mean(history) + delta level < memory_limit
This project has been set up using PyScaffold 2.5.7. For details and usage information on PyScaffold see http://pyscaffold.readthedocs.org/.
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