Message261427
The attached patch for the parser reduces "Maximum resident set size (kbytes)" threefold, for the degenerate example of 'import ast; ast.parse("0,"*1000000, mode="eval")', by eliminating many CST nodes that have a single child.
According to the comment in node.c -- "89% of PyObject_REALLOC calls in PyNode_AddChild passed 1 for the size" -- the memory saving should be generally applicable, and not limited just to this degenerate case.
Modules/parsermodule.c is not yet updated to match. Please tell if you want me to do that, in case that my proposed change to the parser is acceptable. |
|
Date |
User |
Action |
Args |
2016-03-09 14:07:03 | A. Skrobov | set | recipients:
+ A. Skrobov, rhettinger, paul.moore, vstinner, christian.heimes, tim.golden, zach.ware, serhiy.storchaka, eryksun, steve.dower |
2016-03-09 14:07:03 | A. Skrobov | set | messageid: <1457532423.49.0.805984681934.issue26415@psf.upfronthosting.co.za> |
2016-03-09 14:07:03 | A. Skrobov | link | issue26415 messages |
2016-03-09 14:07:03 | A. Skrobov | create | |
|