Message 360986 - Python tracker

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Author	vstinner
Recipients	rhettinger, vstinner
Date	2020-01-29.21:31:14
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<[email protected]>
In-reply-to

Content
Python 2.7.15 got a PYTHONSHOWALLOCCOUNT environment variable to dump statistics on types at exit, if Python is built with COUNT_ALLOCS macro defined. Example with Fedora python2.7-debug (package python2-debug-2.7.17-1.fc31.x86_64): $ PYTHONSHOWALLOCCOUNT=1 python2.7-debug -c pass exceptions.ImportError alloc'd: 2, freed: 2, max in use: 1 symtable entry alloc'd: 3, freed: 3, max in use: 1 enumerate alloc'd: 2, freed: 2, max in use: 1 dict alloc'd: 459, freed: 220, max in use: 346 str alloc'd: 13981, freed: 12142, max in use: 5991 tuple alloc'd: 5088, freed: 4096, max in use: 2337 (...) fast tuple allocs: 2434, empty: 1753 fast int allocs: pos: 875, neg: 74 null strings: 81, 1-strings: 328

Python 2.7.15 got a PYTHONSHOWALLOCCOUNT environment variable to dump statistics on types at exit, if Python is built with COUNT_ALLOCS macro defined.

Example with Fedora python2.7-debug (package python2-debug-2.7.17-1.fc31.x86_64):

$ PYTHONSHOWALLOCCOUNT=1 python2.7-debug -c pass
exceptions.ImportError alloc'd: 2, freed: 2, max in use: 1
symtable entry alloc'd: 3, freed: 3, max in use: 1
enumerate alloc'd: 2, freed: 2, max in use: 1
dict alloc'd: 459, freed: 220, max in use: 346
str alloc'd: 13981, freed: 12142, max in use: 5991
tuple alloc'd: 5088, freed: 4096, max in use: 2337
(...)
fast tuple allocs: 2434, empty: 1753
fast int allocs: pos: 875, neg: 74
null strings: 81, 1-strings: 328

History
Date	User	Action	Args
2020-01-29 21:31:14	vstinner	set	recipients: + vstinner, rhettinger
2020-01-29 21:31:14	vstinner	set	messageid: <[email protected]>
2020-01-29 21:31:14	vstinner	link	issue39489 messages
2020-01-29 21:31:14	vstinner	create