|Summary:||Make sure service workers use a ScriptSourceCode backed by file-mapped memory when possible|
|Product:||WebKit||Reporter:||Chris Dumez <cdumez>|
|Component:||Service Workers||Assignee:||Chris Dumez <cdumez>|
|Severity:||Normal||CC:||ggaren, simon.fraser, webkit-bug-importer, ysuzuki|
|Version:||WebKit Nightly Build|
|Bug Depends on:||224092, 224110|
Description Chris Dumez 2021-04-01 17:42:08 PDT
Make sure service workers use a ScriptSourceCode backed by file-mapped memory whenever possible. This saves dirty memory in the WebProcess.
Comment 1 Chris Dumez 2021-04-01 17:48:02 PDT
Created attachment 424969 [details] WIP Patch Needs polish but with this patch, warm memory usage on my service worker test case with ~200MB of scripts, the WebContent memory usage goes from 231MB to ~23MB. The patch does not take care of the cold case yet.
Comment 3 Chris Dumez 2021-04-02 13:18:57 PDT
Created attachment 425046 [details] WIP Patch The patch should now work in both the warm and cold cases. However, I am waiting for the dependency patch to land before I rebase & clean it up.
Comment 8 EWS 2021-04-05 18:05:30 PDT
Committed r275465: <https://commits.webkit.org/r275465> All reviewed patches have been landed. Closing bug and clearing flags on attachment 425071 [details].