Bug 1906664 Comment 0 Edit History

Note: The actual edited comment in the bug view page will always show the original commenter’s name and original timestamp.

Original comment by
on 
In [this bug](https://bugzilla.mozilla.org/show_bug.cgi?id=1899169#c8) we are quantifying the impact of glean on fenix pageload.

With Bug 1892230, Bug 1898515, and Bug 1898649 fixed, we are still measuring a performance hit in CI pageload tests with Telemetry enabled.

The baseline revision has telemetry disabled in Fenix, while the "New" revision (i.e. right hand side) has telemetry enabled.
Performance Compare

With the "replicates" view enabled I am seeing a series of performance impacts, medium confidence unless otherwise noted.

• allrecipes ContentfulSpeedIndex opt warm, 4.43% slower
• amazon-search largestContentfulPaint opt warm 2.32% slower
• cnn visual metrics, 3-4% slower
• cnn fnbpaint opt warm, 6.71% slower, high confidence
• ebay-kleinanzeigen-search ContentfulSpeedIndex opt warm, 3.85% high confidence
• imdb fcp opt warm, 2.95% slower
• sina visual metrics, up to 18% slower, but high noise site
Revision 1 by
on 
In [bug 1899169](https://bugzilla.mozilla.org/show_bug.cgi?id=1899169#c8) we are quantifying the impact of glean on fenix pageload.

With Bug 1892230, Bug 1898515, and Bug 1898649 fixed, we are still measuring a performance hit in CI pageload tests with Telemetry enabled.

The baseline revision has telemetry disabled in Fenix, while the "New" revision (i.e. right hand side) has telemetry enabled.
Performance Compare

With the "replicates" view enabled I am seeing a series of performance impacts, medium confidence unless otherwise noted.

• allrecipes ContentfulSpeedIndex opt warm, 4.43% slower
• amazon-search largestContentfulPaint opt warm 2.32% slower
• cnn visual metrics, 3-4% slower
• cnn fnbpaint opt warm, 6.71% slower, high confidence
• ebay-kleinanzeigen-search ContentfulSpeedIndex opt warm, 3.85% high confidence
• imdb fcp opt warm, 2.95% slower
• sina visual metrics, up to 18% slower, but high noise site
Revision 2 by
on 
In [bug 1899169](https://bugzilla.mozilla.org/show_bug.cgi?id=1899169#c8) we are quantifying the impact of glean on fenix pageload.

With Bug 1892230, Bug 1898515, and Bug 1898649 fixed, we are still measuring a performance hit in CI pageload tests with Telemetry enabled.

The baseline revision has telemetry disabled in Fenix, while the "New" revision (i.e. right hand side) has telemetry enabled.
[Performance Compare](https://treeherder.mozilla.org/perfherder/compare?originalProject=try&originalRevision=c7b93803ca07b9b7d172d33fa2165f48d3bf61ab&newProject=try&newRevision=3a4ef42aafc7f9b12ddcd104ed43ac642736f2ad&page=1&framework=13&showOnlyImportant=1&replicates=1)

With the "replicates" view enabled I am seeing a series of performance impacts, medium confidence unless otherwise noted.

• allrecipes ContentfulSpeedIndex opt warm, 4.43% slower
• amazon-search largestContentfulPaint opt warm 2.32% slower
• cnn visual metrics, 3-4% slower
• cnn fnbpaint opt warm, 6.71% slower, high confidence
• ebay-kleinanzeigen-search ContentfulSpeedIndex opt warm, 3.85% high confidence
• imdb fcp opt warm, 2.95% slower
• sina visual metrics, up to 18% slower, but high noise site

Back to Bug 1906664 Comment 0