author | Boris Feld <boris.feld@octobus.net> |
Wed, 29 Aug 2018 09:41:04 -0700 | |
changeset 39331 | fd0150a3c2fe |
parent 31958 | de5c9d0e02ea |
child 43076 | 2372284d9457 |
permissions | -rw-r--r-- |
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contrib: helper extension to track memory usage
Martin Geisler <mg@lazybytes.net>
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# memory.py - track memory usage |
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# |
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# Copyright 2009 Matt Mackall <mpm@selenic.com> and others |
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# |
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# This software may be used and distributed according to the terms of the |
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# GNU General Public License version 2 or any later version. |
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'''helper extension to measure memory usage |
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Reads current and peak memory usage from ``/proc/self/status`` and |
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prints it to ``stderr`` on exit. |
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''' |
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contrib: make memory.py use absolute_import
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from __future__ import absolute_import |
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def memusage(ui): |
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"""Report memory usage of the current process.""" |
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result = {'peak': 0, 'rss': 0} |
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with: use context manager for file I/O in memusage
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with open('/proc/self/status', 'r') as status: |
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# This will only work on systems with a /proc file system |
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# (like Linux). |
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for line in status: |
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parts = line.split() |
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key = parts[0][2:-1].lower() |
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if key in result: |
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result[key] = int(parts[1]) |
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memory: avoid shadowing variables inside a list comprehension
Augie Fackler <augie@google.com>
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ui.write_err(", ".join(["%s: %.1f MiB" % (k, v / 1024.0) |
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for k, v in result.iteritems()]) + "\n") |
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def extsetup(ui): |
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atexit: switch to home-grown implementation
Bryan O'Sullivan <bryano@fb.com>
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ui.atexit(memusage, ui) |