Comment 7 for bug 1900783

Here's after a reboot, again with a clean profile that's been opened one time, stable channel on up-to-date Groovy:

ab@mb:~$ etrace exec /snap/bin/chromium
2020/10/23 10:27:06 xdotool.go:84:
Gtk-Message: 10:27:14.094: Failed to load module "canberra-gtk-module"
Gtk-Message: 10:27:14.116: Failed to load module "canberra-gtk-module"
[11797:11797:1023/102734.021699:ERROR:sandbox_linux.cc(374)] InitializeSandbox() called with multiple threads in process gpu-process.
61 exec calls during snap run:
     Start Stop Elapsed Exec
     0 472100 472.100019ms /snap/bin/chromium
     27013 37971 10.958909ms /usr/lib/snapd/snap-seccomp
     103312 105487 2.174139ms /usr/lib/snapd/snap-device-helper
     105838 107959 2.121925ms /usr/lib/snapd/snap-device-helper
     108319 110501 2.181053ms /usr/lib/snapd/snap-device-helper
     110850 113080 2.230882ms /usr/lib/snapd/snap-device-helper
     113421 115489 2.067089ms /usr/lib/snapd/snap-device-helper
     115772 118021 2.249002ms /usr/lib/snapd/snap-device-helper
     118335 120568 2.233028ms /usr/lib/snapd/snap-device-helper
     120867 125847 4.980087ms /usr/lib/snapd/snap-device-helper
     126198 128540 2.342939ms /usr/lib/snapd/snap-device-helper
     128860 131577 2.716064ms /usr/lib/snapd/snap-device-helper
     131940 134634 2.694845ms /usr/lib/snapd/snap-device-helper
     134973 137454 2.481937ms /usr/lib/snapd/snap-device-helper
     137806 140505 2.698183ms /usr/lib/snapd/snap-device-helper
     140962 143770 2.808809ms /usr/lib/snapd/snap-device-helper
     144108 146301 2.193927ms /usr/lib/snapd/snap-device-helper
     146591 148778 2.187013ms /usr/lib/snapd/snap-device-helper
     149217 151494 2.276897ms /usr/lib/snapd/snap-device-helper
     151847 154367 2.520799ms /usr/lib/snapd/snap-device-helper
     155422 157877 2.454996ms /usr/lib/snapd/snap-device-helper
     165157 167555 2.398014ms /usr/lib/snapd/snap-device-helper
     168947 171360 2.413034ms /usr/lib/snapd/snap-device-helper
     172826 175012 2.186059ms /usr/lib/snapd/snap-device-helper
     176098 178416 2.318859ms /usr/lib/snapd/snap-device-helper
     179435 182003 2.568006ms /usr/lib/snapd/snap-device-helper
     183077 185662 2.584934ms /usr/lib/snapd/snap-device-helper
     209460 445437 235.977888ms snap-update-ns
     458566 468766 10.200023ms snap-update-ns
     472100 573029 100.929975ms /usr/lib/snapd/snap-exec
     573029 582269 9.239912ms /snap/chromium/1362/command-chromium.wrapper
     582269 1204112 621.842145ms /snap/chromium/1362/bin/desktop-launch
     667310 679414 12.10308ms /bin/date
     771656 780951 9.294986ms /usr/bin/md5sum
     784470 793044 8.574008ms /bin/cat
     795722 803555 7.83205ms /usr/bin/md5sum
     805881 811655 5.774974ms /bin/cat
     813513 832447 18.934011ms /bin/grep
     839522 868767 29.245853ms /bin/mkdir
     898451 953804 55.353879ms /usr/bin/head
     956835 973381 16.54601ms /usr/bin/head
     976434 993457 17.022132ms /usr/bin/head
     996059 1011866 15.806198ms /usr/bin/head
     1014738 1030759 16.021013ms /usr/bin/head
     1033776 1050442 16.666889ms /usr/bin/head
     1053074 1068875 15.800952ms /usr/bin/head
     1071585 1088642 17.056226ms /usr/bin/head
     1091500 1107697 16.196966ms /usr/bin/head
     1115821 1135473 19.652843ms /bin/mkdir
     1141314 1162826 21.512031ms /bin/ln
     1166500 1186408 19.907951ms /bin/rm
     1187048 1201411 14.36305ms /bin/ln
     1204112 1326992 122.879981ms /snap/chromium/1362/bin/chromium.launcher
     1213257 1251816 38.558959ms /usr/bin/cut
     1214077 1236867 22.789955ms /usr/bin/id
     1236932 1251408 14.475107ms /usr/bin/getent
     1255490 1326690 71.200847ms /usr/bin/snapctl
     1326992 54340631 53.013638973s /snap/chromium/1362/usr/lib/chromium-browser/chrome
     10571131 54331553 43.760421991s /proc/self/exe
     29713400 30021182 307.781934ms /usr/bin/xdg-settings
     29913347 30020597 107.249975ms /usr/bin/dbus-send
Total time: 54.387691975s
Total startup time: 54.414637346s

Here's a few minutes later as a comparison of a re-launch:

ab@mb:~$ etrace exec /snap/bin/chromium
2020/10/23 10:33:04 xdotool.go:84:
Gtk-Message: 10:33:05.870: Failed to load module "canberra-gtk-module"
Gtk-Message: 10:33:05.878: Failed to load module "canberra-gtk-module"
[13532:13532:1023/103306.073051:ERROR:sandbox_linux.cc(374)] InitializeSandbox() called with multiple threads in process gpu-process.
55 exec calls during snap run:
     Start Stop Elapsed Exec
     0 170787 170.787096ms /snap/bin/chromium
     69294 71325 2.030134ms /usr/lib/snapd/snap-device-helper
     71603 73843 2.239942ms /usr/lib/snapd/snap-device-helper
     74141 76043 1.901149ms /usr/lib/snapd/snap-device-helper
     76359 78934 2.575874ms /usr/lib/snapd/snap-device-helper
     79273 81710 2.436161ms /usr/lib/snapd/snap-device-helper
     82119 84248 2.128124ms /usr/lib/snapd/snap-device-helper
     84535 86640 2.104997ms /usr/lib/snapd/snap-device-helper
     86929 89451 2.521991ms /usr/lib/snapd/snap-device-helper
     89810 92721 2.911806ms /usr/lib/snapd/snap-device-helper
     92988 95205 2.2161ms /usr/lib/snapd/snap-device-helper
     95503 97882 2.379894ms /usr/lib/snapd/snap-device-helper
     98278 101335 3.056049ms /usr/lib/snapd/snap-device-helper
     101711 104525 2.8131ms /usr/lib/snapd/snap-device-helper
     104835 107031 2.196073ms /usr/lib/snapd/snap-device-helper
     107302 109755 2.452135ms /usr/lib/snapd/snap-device-helper
     110089 112574 2.485036ms /usr/lib/snapd/snap-device-helper
     113059 115902 2.842903ms /usr/lib/snapd/snap-device-helper
     116266 118742 2.475976ms /usr/lib/snapd/snap-device-helper
     119730 122039 2.30813ms /usr/lib/snapd/snap-device-helper
     128300 130826 2.526044ms /usr/lib/snapd/snap-device-helper
     132220 134815 2.594947ms /usr/lib/snapd/snap-device-helper
     136248 138945 2.69699ms /usr/lib/snapd/snap-device-helper
     140130 142584 2.453088ms /usr/lib/snapd/snap-device-helper
     143489 145586 2.097845ms /usr/lib/snapd/snap-device-helper
     146519 148869 2.350091ms /usr/lib/snapd/snap-device-helper
     155803 167716 11.913061ms snap-update-ns
     170787 186218 15.43188ms /usr/lib/snapd/snap-exec
     186218 192721 6.502151ms /snap/chromium/1362/command-chromium.wrapper
     192721 553580 360.85987ms /snap/chromium/1362/bin/desktop-launch
     206721 212441 5.720853ms /bin/date
     242866 248403 5.536079ms /usr/bin/md5sum
     250622 256972 6.349086ms /bin/cat
     259377 266833 7.456064ms /usr/bin/md5sum
     269475 276448 6.973028ms /bin/cat
     278330 287497 9.166955ms /bin/grep
     318728 335237 16.508102ms /usr/bin/head
     338112 355176 17.064809ms /usr/bin/head
     357845 376586 18.741846ms /usr/bin/head
     379255 395224 15.969038ms /usr/bin/head
     397881 413609 15.727043ms /usr/bin/head
     416536 433078 16.541957ms /usr/bin/head
     435895 452758 16.862154ms /usr/bin/head
     456351 471285 14.934062ms /usr/bin/head
     474035 491394 17.359018ms /usr/bin/head
     497899 515360 17.461061ms /bin/ln
     518183 535912 17.72809ms /bin/rm
     536561 552624 16.063928ms /bin/ln
     553580 613265 59.684991ms /snap/chromium/1362/bin/chromium.launcher
     581121 593223 12.101173ms /usr/bin/getent
     594485 612934 18.449068ms /usr/bin/snapctl
     613265 3454013 2.840747117s /snap/chromium/1362/usr/lib/chromium-browser/chrome
     1039853 3446434 2.406581878s /proc/self/exe
     1730375 1913139 182.764053ms /usr/bin/xdg-settings
     1783818 1912457 128.639936ms /usr/bin/dbus-send
Total time: 3.506243944s
Total startup time: 3.520839923s