Hi Rick & Frédéric, On Mon, Nov 22, 2021 at 11:27 PM Rick Byers <[email protected]> wrote:
> > I wonder if we have metrics about unrenderable characters? I.e. how often > we fail to render some text because the glyph isn't present in the selected > font? If we did, then I think it would be pretty easy to do a finch trial > for changes like this and decide go/no-go based on that data. > We used to have a metric to tell us for which Unicode code block no fallback character was found after the primary fonts, user preference font and system fallback, but I think we removed that after it had given us the useful information that these were mostly math symbols and some emoji. For privacy reasons we can't have a metric to track missing glyph coverage for single characters, but the bucketed Unicode block approach worked. To my knowledge we do not (and did not) have metrics on coverage/missing glyphs per selected font. Dominik > On Mon, Nov 22, 2021 at 4:27 AM Yoav Weiss <[email protected]> wrote: > >> Based on +Rick Byers <[email protected]>'s HA for webcompat document >> <https://docs.google.com/document/d/1cpjWFoXBiuFYI4zb9I7wHs7uYZ0ntbOgLwH-mgqXdEM/edit#>, >> I just ran the following query: >> ``` >> SELECT url FROM `httparchive.latest.pages_mobile` >> WHERE JSON_EXTRACT(payload, "$._blinkFeatureFirstUsed.Features['3987']") >> IS NOT NULL >> ``` >> Results are here >> <https://docs.google.com/spreadsheets/d/1WZTRBujaaFrtUaRnBOoVYzJkZuColXFN-GgToF6nR5Q/edit?usp=sharing> >> . >> In short, there are 191 pages that touch this usecounter, out of 7655542 >> pages in that table. (or ~0.0025% of pages) >> >> This resolves my previous concerns about HA showing an order of magnitude >> more usage than our chromestatus use counter data. >> >> While digging into UKM data could be interesting, it'd take some time to >> gather, so it might be sufficient to take a random sample from the HA list >> and see what the impact on those sites would be. >> >> >> On Mon, Nov 22, 2021 at 9:49 AM Frédéric Wang <[email protected]> wrote: >> >>> Le 18/11/2021 à 21:29, Chris Harrelson a écrit : >>> >>> >>> Would it be possible to get results of top pages hitting the use >>>> counter, so one can analyze them more carefully ? Do we need to do any >>>> additional change in Chromium to make that possible ? >>>> >>> >>> chromestatus.com already has this feature, by combining UseCounter with >>> HTTPArchive. It can take a while for this data to be populated though, >>> because of latency in the indexing. >>> >>> >>>> Hi Chris, >>> >>> Last week Chromestatus was showing wrong results, basically for any >>> feature it was returning matches for all HTTPArchive pages. Now it returns >>> no data at all for -webkit-standard. Not sure if we need to wait more >>> before indexing happens... >>> >>> Otherwise, I was thinking of something we did for scroll position values >>> in non-default writing modes in the past [1] i.e. use UKM to better collect >>> and analyze affected origins and maybe introducing a finch flag to ship >>> this more safely (the code change to disable that is one line [2] so that >>> should be easy). But IIRC we will need help from a Googler for that purpose. >>> >>> [1] >>> https://groups.google.com/a/chromium.org/g/blink-dev/c/7X2CKPGeEa0/m/7Rau54VwDQAJ >>> >>> [2] https://chromium-review.googlesource.com/c/chromium/src/+/3282157 >>> >>> -- >>> Frédéric Wang >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "blink-dev" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to [email protected]. >>> To view this discussion on the web visit >>> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/f4dd6049-8221-e881-8979-c9029dc5ae01%40igalia.com >>> <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/f4dd6049-8221-e881-8979-c9029dc5ae01%40igalia.com?utm_medium=email&utm_source=footer> >>> . >>> >> -- > You received this message because you are subscribed to the Google Groups > "blink-dev" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAFUtAY9fqrpWok%3DB_s2qBacf%2BHZzcJYHiWY3e6OHODQ%2BWiVDXw%40mail.gmail.com > <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAFUtAY9fqrpWok%3DB_s2qBacf%2BHZzcJYHiWY3e6OHODQ%2BWiVDXw%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "blink-dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAN6muBvzR58ndM2V1Q%2BoRo1niV6fT71yqv-%2BFAFb6tELKY638Q%40mail.gmail.com.
