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Created on 2005-10-25 06:18 by nnorwitz, last changed 2022-04-11 14:56 by admin. This issue is now closed.
| Files | ||||
|---|---|---|---|---|
| File name | Uploaded | Description | Edit | |
| remove-4-frame-ints.patch | nnorwitz, 2005-10-25 06:18 | |||
| Messages (4) | |||
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| msg48903 - (view) | Author: Neal Norwitz (nnorwitz) *  |
Date: 2005-10-25 06:18 | |
Decreases the size of each frame object by 32 bytes. The 4 ints are already in the PyCodeObject. Well, 2 are in there directly (co_nlocals and co_stacksize). The other 2 are the tuple lengths of co_cellvars and co_freevars. I ran pybench before and after the patch. With the patch, the interpreter was .002 seconds slower, ie, noise. I get more variability than that with each recompile. Mostly the change is from using f->f_... to co->co_... ie, no difference in pointer derefs, just deref a different pointer. I don't see a good reason to duplicate the data. |
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| msg48904 - (view) | Author: Neal Norwitz (nnorwitz) * |
Date: 2005-11-02 07:14 | |
Logged In: YES user_id=33168 Heh, my math sucks. It should be 16 bytes, not 32. Though I got rid of 1 more (f_restricted), so it's really 20 bytes now. I need to clean up the patch and attach here. |
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| msg48905 - (view) | Author: Georg Brandl (georg.brandl) * |
Date: 2006-02-20 10:37 | |
Logged In: YES user_id=1188172 Can this go into 2.5? |
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| msg48906 - (view) | Author: Tim Peters (tim.peters) * |
Date: 2006-05-23 18:59 | |
Logged In: YES user_id=31435 Yes, it can. And did! Thanks be to Richard Jones. |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:56:13 | admin | set | github: 42516 |
| 2005-10-25 06:18:09 | nnorwitz | create | |