bpo-37146: Deactivate opcode cache only when using huntrleaks in the test suite#24643
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pablogsal merged 5 commits intopython:masterfrom Feb 28, 2021
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bpo-37146: Deactivate opcode cache only when using huntrleaks in the test suite#24643pablogsal merged 5 commits intopython:masterfrom
pablogsal merged 5 commits intopython:masterfrom
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methane
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Feb 25, 2021
Python/ceval.c
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This may increase memory access in hot path. Would you run pypeformance to ensure no performance regression?
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Sure, will run this over the weekend.
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Seems that there is no much different over the noise level:
❯ pyperf compare_to json/* --table --min-speed 2 -G
+----------------+--------------------------------------+-----------------------------------------+
| Benchmark | 2021-02-27_11-31-master-c71d24f55828 | 2021-02-27_19-33-bpo-37136-a9680bcf9b84 |
+================+======================================+=========================================+
| unpickle | 17.0 us | 17.4 us: 1.02x slower |
+----------------+--------------------------------------+-----------------------------------------+
| pickle | 13.2 us | 13.7 us: 1.04x slower |
+----------------+--------------------------------------+-----------------------------------------+
| nqueens | 121 ms | 126 ms: 1.04x slower |
+----------------+--------------------------------------+-----------------------------------------+
| Geometric mean | (ref) | 1.00x slower |
+----------------+--------------------------------------+-----------------------------------------+
Benchmark hidden because not significant (56): xml_etree_parse, scimark_sor, unpickle_list, nbody, unpack_sequence, regex_v8, chaos, meteor_contest, telco, python_startup, genshi_text, regex_compile, python_startup_no_site, json_loads, regex_dna, logging_simple, sympy_sum, xml_etree_iterparse, scimark_sparse_mat_mult, xml_etree_process, richards, chameleon, sqlalchemy_declarative, django_template, hexiom, pathlib, json_dumps, tornado_http, sympy_str, unpickle_pure_python, pyflate, pidigits, go, regex_effbot, deltablue, sympy_expand, xml_etree_generate, float, genshi_xml, logging_silent, raytrace, fannkuch, sqlalchemy_imperative, scimark_monte_carlo, logging_format, 2to3, sympy_integrate, mako, pickle_dict, pickle_list, spectral_norm, dulwich_log, sqlite_synth, scimark_lu, pickle_pure_python, scimark_fft, crypto_pyaes
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vstinner
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Feb 27, 2021
Co-authored-by: Victor Stinner <[email protected]>
Co-authored-by: Victor Stinner <[email protected]>
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One comment nit. This addresses my concern nicely.
Co-authored-by: Guido van Rossum <[email protected]>
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https://bugs.python.org/issue37146
This allows us to run the opcode cache in debug mode, as catching bugs related to the opcode cache was quite hard due to it not being activated by default in this case.