Closed Bug 1405738 Opened 3 years ago Closed 3 years ago
Enable the Java
Script Start-up Bytecode Cache by default
No description provided.
this looks to have improved our tp6 numbers: https://treeherder.mozilla.org/perf.html#/alerts?id=10314
Telemetry alerts are reporting that the JSBC is enabled and working. Latest telemetry data show that 18% of the script tags are loaded from the alternate data cache (i.e. in bytecode format) and 28% are loaded in source format from the network or from the network cache. The expected result is that it will progressively converge to become ~23% for both column, at least based on the fetch_count results and the current heuristics in place.  http://alerts.telemetry.mozilla.org/index.html#/detectors/1/alerts/?from=2017-11-02&to=2017-11-02&metrics-filter=  https://telemetry.mozilla.org/new-pipeline/dist.html#!cumulative=0&end_date=2017-11-05&keys=__none__!__none__!__none__&max_channel_version=nightly%252F58&measure=DOM_SCRIPT_LOADING_SOURCE&min_channel_version=null&processType=*&product=Firefox&sanitize=1&sort_keys=submissions&start_date=2017-11-04&table=0&trim=1&use_submission_date=0
It'd be useful to know as a user what this means. Does it affect browser startup? Page load? JS speed? The Firefox Nightly account is tweeting about this too and lacks context there also: https://twitter.com/FirefoxNightly/status/927581681661480961
> https://groups.google.com/forum/#!msg/mozilla.dev.platform/4u6EsaDC7kY/ > 1TxDr3-BAgAJ are you planning to write a blog post or some doc? We cannot link to a thread in a ML from the release notes
Nicolas, will you or someone from your team provide a short release note description? Since this is not getting backed out, it is probably stable enough to be added to at least 59 Nightly release notes. Thanks
Has been added to the release notes with a link to the blog post! Merci beaucoup Nicolas!
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