gsnedders

In [36]: visual.most_common(30)                                                                                         
Out[36]: 
[('', 3220),
 ('css', 3212),
 ('css/CSS2', 2626),
 ('css/CSS2/tables', 766),
 ('css/CSS2/text', 297),
 ('css/CSS2/borders', 254),
 ('css/CSS2/ui', 222),
 ('css/selectors', 168),

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Benchmark	wpt27_perf	wpt35_perf	wpt36_perf	wpt37_perf	wpt38_perf
wpt_001	424 us	434 us: 1.02x slower (+2%)	440 us: 1.04x slower (+4%)	367 us: 1.16x faster (-13%)	297 us: 1.43x faster (-30%)
wpt_2d.composite.image.destination-over	1.71 ms	1.63 ms: 1.05x faster (-5%)	1.69 ms: 1.01x faster (-1%)	1.40 ms: 1.22x faster (-18%)	1.11 ms: 1.54x faster (-35%)
wpt_align-content-wrap-002	5.45 ms	5.17 ms: 1.05x faster (-5%)	5.49 ms: 1.01x slower (+1%)	4.45 ms: 1.22x faster (-18%)	3.49 ms: 1.56x faster (-36%)
wpt_background-origin-007-ref

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+-----------------------------------------------------+---------+------------------------------+
| Benchmark                                           | master  | eod                          |
+=====================================================+=========+==============================+
| wpt_beforeunload-on-history-back-1                  | 438 us  | 246 us: 1.78x faster (-44%)  |
+-----------------------------------------------------+---------+------------------------------+
| wpt_frame-ancestors-self-allow                      | 883 us  | 518 us: 1.70x faster (-41%)  |
+-----------------------------------------------------+---------+------------------------------+
| wpt_001                                             | 536 us  | 317 us: 1.69x faster (-41%)  |
+-----------------------------------------------------+---------+------------------------------+
| wpt_background_shorthand_css_relative_url           | 1.38 ms | 833 us: 1.66x faster (-40%)  |

gsnedders

The following 35 files account for 2/3rds all of HTML parse-time when running ./wpt manifest -r under Python 3.8, and HTML parsing is known to be a bottleneck there; the first column is time to parse in nanoseconds, the second column is the path:

135653604 css/compositing/test-plan/test-plan.html
176767866 css/CSS2/floats-clear/clear-on-parent-with-margins.html
193460915 css/css-flexbox/interactive/flexbox_interactive_order-transitions.html
197030005 encoding/legacy-mb-tchinese/big5/big5_chars_extra.html
221161410 html/browsers/offline/appcache/appcache-iframe.https.html
224716724 mathml/relations/css-styling/mathvariant-auto-ref.html
239263995 css/vendor-imports/mozilla/mozilla-central-reftests/text3/segment-break-transformation-rules-004.html

gsnedders

2019-nCoV
American Health System
CDC
containment
#cornavirus
#CornavirusOutbreak
#cornavirusupdate
cornoavirus
corona
#coronatv

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a12.2
a16.6
a18.1
a4.3.6
a9.2.4
c10
c10.1
c10.2
c10.3
c10.3.2

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# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.

from __future__ import unicode_literals

import os
import re
import sys

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# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this file,
# You can obtain one at http://mozilla.org/MPL/2.0/.

import os
import csv
import socket
import sys
import threading
import time

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{
    "selection": 1, 
    "proximity": 1, 
    "geolocation-sensor": 1, 
    "audio-output": 1, 
    "event-timing": 1, 
    "screen-orientation": 1, 
    "hr-time": 1, 
    "gyroscope": 1, 
    "annotation-protocol": 1, 

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/css/css-text/shaping/shaping-023.html
/css/css-text/shaping/shaping-024.html
/css/css-text/shaping/shaping-025.html