JavaScript:SpiderMonkey:Context Threading: Difference between revisions
Jump to navigation
Jump to search
No edit summary |
(Mark as Outdated) |
||
| (4 intermediate revisions by one other user not shown) | |||
| Line 1: | Line 1: | ||
{{OutdatedSpiderMonkey}} | |||
== Warning == | |||
[mailto:brendan@mozilla.org | This project-stub is probably obsolete in view of [[JavaScript:ActionMonkey]]. | ||
== Blurb == | |||
[http://citeseer.ist.psu.edu/berndl05context.html Context threading] is an interpreter implementation technique that aligns the interpreter's virtual PC with the real PC, to optimize branch prediction. SpiderMonkey needs it. Challenges: | |||
* Preserving the SpiderMonkey [http://lxr.mozilla.org/mozilla/source/js/src/jsdbgapi.h Debugger API]. | |||
* Preserving the [http://lxr.mozilla.org/mozilla/search?string=JS_SetBranchCallback JS_SetBranchCallback API]. | |||
* Recoding [http://lxr.mozilla.org/mozilla/source/js/src/jsopcode.tbl bytecodes] as necessary to improve icache utilization. | |||
* Dealing with <code>goto out;</code> and any other such jumps in the interpreter. | |||
[mailto:brendan@mozilla.org /be] | |||
Latest revision as of 21:22, 27 April 2021
|
THIS PAGE IS OBSOLETE |
| This article is in parts, or in its entirety, outdated. Hence, the information presented on this page may be incorrect, and should be treated with due caution. Visit SpiderMonkey.dev for more up to date information. |
Warning
This project-stub is probably obsolete in view of JavaScript:ActionMonkey.
Blurb
Context threading is an interpreter implementation technique that aligns the interpreter's virtual PC with the real PC, to optimize branch prediction. SpiderMonkey needs it. Challenges:
- Preserving the SpiderMonkey Debugger API.
- Preserving the JS_SetBranchCallback API.
- Recoding bytecodes as necessary to improve icache utilization.
- Dealing with
goto out;and any other such jumps in the interpreter.