Mercurial > hg
annotate tests/readlink.py @ 31467:08ecec297521
bdiff: use Python memory allocator in fixws
Python has its own memory allocation APIs. For allocations
<= 512 bytes, it allocates memory from arenas. This means that
average small allocations don't call the system allocator, which
makes them faster. Also, arena allocations cut down on memory
fragmentation, which can matter for performance in long-running
processes.
Another advantage of using the Python memory allocator is that
allocations are tracked by Python. This is a bigger deal in
Python 3, as modern versions of Python have some decent built-in
tools for examining memory usage, leaks, etc.
This patch converts a trivial malloc() + free() in the bdiff code
to use the Python allocator APIs. Since the object being
operated on is a line, chances are it will use an arena. So,
this could have a net positive impact on performance (although
I didn't measure it).
author | Gregory Szorc <gregory.szorc@gmail.com> |
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date | Thu, 09 Mar 2017 11:54:25 -0800 |
parents | 6a98f9408a50 |
children | c102b704edb5 |
rev | line source |
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Use common readlink.py instead of own implementations per test script.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
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1 #!/usr/bin/env python |
396c7010b0cd
Use common readlink.py instead of own implementations per test script.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
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2 |
29485
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py3: make files use absolute_import and print_function
Pulkit Goyal <7895pulkit@gmail.com>
parents:
29175
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3 from __future__ import absolute_import, print_function |
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readlink: use print_function
timeless <timeless@mozdev.org>
parents:
25660
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4 |
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py3: make files use absolute_import and print_function
Pulkit Goyal <7895pulkit@gmail.com>
parents:
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5 import errno |
6a98f9408a50
py3: make files use absolute_import and print_function
Pulkit Goyal <7895pulkit@gmail.com>
parents:
29175
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6 import os |
6a98f9408a50
py3: make files use absolute_import and print_function
Pulkit Goyal <7895pulkit@gmail.com>
parents:
29175
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7 import sys |
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Use common readlink.py instead of own implementations per test script.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
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8 |
396c7010b0cd
Use common readlink.py instead of own implementations per test script.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
diff
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9 for f in sys.argv[1:]: |
396c7010b0cd
Use common readlink.py instead of own implementations per test script.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
diff
changeset
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10 try: |
29175
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timeless <timeless@mozdev.org>
parents:
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11 print(f, '->', os.readlink(f)) |
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global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
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12 except OSError as err: |
10282
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many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
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13 if err.errno != errno.EINVAL: |
08a0f04b56bd
many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents:
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14 raise |
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timeless <timeless@mozdev.org>
parents:
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15 print(f, '->', f, 'not a symlink') |
5683
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Use common readlink.py instead of own implementations per test script.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
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16 |
396c7010b0cd
Use common readlink.py instead of own implementations per test script.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
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17 sys.exit(0) |