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The CPython JIT
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July_24
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Marks
Author(s):
Jeff Glass
Location
Tegus
Date
jul Thu 11
Days Raw Files
Start
19:27
First Raw Start
18:30
Duration
00:59:59
Offset
0:57:15
End
20:27
Last Raw End
20:15
Chapters
00:00
Total cuts_time
59 min.
https://www.chipy.org/meetings/252/
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Starting in Python 3.13, CPython includes the option to run with a Just-In-Time Compiler, which emits snippets of machine-code at runtime for added speed. The novel 'copy-and-patch' JIT CPython uses means that the Python runtime doesn't need to actually know anything about compiling this machine-code - it just 'fills in the blanks' of pre-compiled stencils. This talk will introduce the core concepts of CPython's Tier 2 Interpreter, its copy and patch JIT, and current active areas of exploration. It will also include notes on my own explorations with Superinstructions - sequences of multiple bytecodes compiled together for additional time savings.
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