-
Notifications
You must be signed in to change notification settings - Fork 71
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Merge remote-tracking branch 'origin/main' into feat/snapshot
- Loading branch information
Showing
3 changed files
with
221 additions
and
20 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,181 @@ | ||
| import io | ||
| import linecache | ||
| import threading | ||
| import time | ||
| import tracemalloc | ||
|
|
||
| from rich.console import Console | ||
|
|
||
| from halmos.logs import debug | ||
|
|
||
| console = Console() | ||
|
|
||
|
|
||
| def readable_size(num: int | float) -> str: | ||
| if num < 1024: | ||
| return f"{num}B" | ||
|
|
||
| if num < 1024 * 1024: | ||
| return f"{num/1024:.1f}KiB" | ||
|
|
||
| return f"{num/(1024*1024):.1f}MiB" | ||
|
|
||
|
|
||
| def pretty_size(num: int | float) -> str: | ||
| return f"[magenta]{readable_size(num)}[/magenta]" | ||
|
|
||
|
|
||
| def pretty_count_diff(num: int | float) -> str: | ||
| if num > 0: | ||
| return f"[red]+{num}[/red]" | ||
| elif num < 0: | ||
| return f"[green]{num}[/green]" | ||
| else: | ||
| return "[gray]0[/gray]" | ||
|
|
||
|
|
||
| def pretty_line(line: str): | ||
| return f"[white] {line}[/white]" if line else "" | ||
|
|
||
|
|
||
| def pretty_frame_info( | ||
| frame: tracemalloc.Frame, result_number: int | None = None | ||
| ) -> str: | ||
| result_number_str = ( | ||
| f"[grey37]# {result_number+1}:[/grey37] " if result_number is not None else "" | ||
| ) | ||
| filename_str = f"[grey37]{frame.filename}:[/grey37]" | ||
| lineno_str = f"[grey37]{frame.lineno}:[/grey37]" | ||
| return f"{result_number_str}{filename_str}{lineno_str}" | ||
|
|
||
|
|
||
| class MemTracer: | ||
| curr_snapshot: tracemalloc.Snapshot | None = None | ||
| prev_snapshot: tracemalloc.Snapshot | None = None | ||
| running: bool = False | ||
|
|
||
| _instance = None | ||
| _lock = threading.Lock() | ||
|
|
||
| def __init__(self): | ||
| if MemTracer._instance is not None: | ||
| raise RuntimeError("Use MemTracer.get() to access the singleton instance.") | ||
| self.curr_snapshot = None | ||
| self.prev_snapshot = None | ||
| self.running = False | ||
|
|
||
| @classmethod | ||
| def get(cls): | ||
| if cls._instance is None: | ||
| with cls._lock: | ||
| if cls._instance is None: | ||
| cls._instance = cls() | ||
| return cls._instance | ||
|
|
||
| def take_snapshot(self): | ||
| debug("memtracer: taking snapshot") | ||
| self.prev_snapshot = self.curr_snapshot | ||
| self.curr_snapshot = tracemalloc.take_snapshot() | ||
| self.display_stats() | ||
|
|
||
| def display_stats(self): | ||
| """Display statistics about the current memory snapshot.""" | ||
| if not self.running: | ||
| return | ||
|
|
||
| if self.curr_snapshot is None: | ||
| debug("memtracer: no current snapshot") | ||
| return | ||
|
|
||
| out = io.StringIO() | ||
|
|
||
| # Show top memory consumers by line | ||
| out.write("[cyan][ Top memory consumers ][/cyan]\n") | ||
| stats = self.curr_snapshot.statistics("lineno") | ||
| for i, stat in enumerate(stats[:10]): | ||
| frame = stat.traceback[0] | ||
| line = linecache.getline(frame.filename, frame.lineno).strip() | ||
| out.write(f"{pretty_frame_info(frame, i)} " f"{pretty_size(stat.size)}\n") | ||
| out.write(f"{pretty_line(line)}\n") | ||
| out.write("\n") | ||
|
|
||
| # Get total memory usage | ||
| total = sum(stat.size for stat in self.curr_snapshot.statistics("filename")) | ||
| out.write(f"Total memory used in snapshot: {pretty_size(total)}\n\n") | ||
|
|
||
| console.print(out.getvalue()) | ||
|
|
||
| def start(self, interval_seconds=60): | ||
| """Start tracking memory usage at the specified interval.""" | ||
| if not tracemalloc.is_tracing(): | ||
| nframes = 1 | ||
| tracemalloc.start(nframes) | ||
| self.running = True | ||
|
|
||
| self.take_snapshot() | ||
| threading.Thread( | ||
| target=self._run, args=(interval_seconds,), daemon=True | ||
| ).start() | ||
|
|
||
| def stop(self): | ||
| """Stop the memory tracer.""" | ||
| self.running = False | ||
|
|
||
| def _run(self, interval_seconds): | ||
| """Run the tracer periodically.""" | ||
| while self.running: | ||
| time.sleep(interval_seconds) | ||
| self.take_snapshot() | ||
| self._display_differences() | ||
|
|
||
| def _display_differences(self): | ||
| """Display top memory differences between snapshots.""" | ||
|
|
||
| if not self.running: | ||
| return | ||
|
|
||
| if self.prev_snapshot is None or self.curr_snapshot is None: | ||
| debug("memtracer: no snapshots to compare") | ||
| return | ||
|
|
||
| out = io.StringIO() | ||
|
|
||
| top_stats = self.curr_snapshot.compare_to( | ||
| self.prev_snapshot, "lineno", cumulative=True | ||
| ) | ||
| out.write("[cyan][ Top differences ][/cyan]\n") | ||
| for i, stat in enumerate(top_stats[:10]): | ||
| frame = stat.traceback[0] | ||
| line = linecache.getline(frame.filename, frame.lineno).strip() | ||
| out.write( | ||
| f"{pretty_frame_info(frame, i)} " | ||
| f"{pretty_size(stat.size_diff)} " | ||
| f"[{pretty_count_diff(stat.count_diff)}]\n" | ||
| ) | ||
| out.write(f"{pretty_line(line)}\n") | ||
|
|
||
| total_diff = sum(stat.size_diff for stat in top_stats) | ||
| out.write(f"Total size difference: {pretty_size(total_diff)}\n") | ||
|
|
||
| console.print(out.getvalue()) | ||
|
|
||
|
|
||
| def main(): | ||
| tracer = MemTracer.get() | ||
| tracer.start(interval_seconds=2) | ||
|
|
||
| # Simulate some workload | ||
| import random | ||
|
|
||
| memory_hog = [] | ||
| try: | ||
| while True: | ||
| memory_hog.append([random.random() for _ in range(1000)]) | ||
| time.sleep(0.1) | ||
| except KeyboardInterrupt: | ||
| # Stop the tracer on exit | ||
| tracer.stop() | ||
|
|
||
|
|
||
| if __name__ == "__main__": | ||
| main() |