Comment 34 for bug 1861359

This kernel command line parameter didn't appear to help:

Moments after loading a new URL into firefox:

1 0 0 699176 17804 3699820 0 0 0 0 2289 863 2 1 98 0 0
 0 0 0 702860 17804 3699780 0 0 0 2288 492 1817 0 1 99 0 0
 0 0 0 702860 17804 3699780 0 0 0 0 232 525 0 0 100 0 0
 0 0 0 703112 17804 3699748 0 0 0 0 220 564 0 0 100 0 0
 2 0 0 707792 17804 3699748 0 0 0 0 384 734 1 0 99 0 0
 0 0 0 712468 17804 3699996 0 0 0 0 1005 854 2 0 97 0 0
 0 0 0 712500 17804 3699988 0 0 0 2308 497 1908 0 0 99 0 0
 0 0 0 712752 17804 3699748 0 0 0 0 240 567 0 0 100 0 0
 0 0 256 632540 17804 3763996 0 232 4 476 1106 2138 2 1 96 0 0
 1 0 4352 649568 17804 3761060 0 2980 0 8132 5030 17862 1 7 92 0 0
 1 0 7168 644588 17804 3758040 0 3032 0 9104 5304 20299 0 7 93 0 0
 1 0 10240 654444 17804 3755152 0 2892 0 12864 5367 21353 0 8 92 1 0
 1 0 13312 651200 17804 3752216 0 2932 0 8804 5073 18847 0 5 95 0 0
 1 0 16128 660636 17804 3749200 0 3016 0 9048 5183 19639 1 6 94 0 0
 0 0 18944 652444 17804 3746180 0 3020 0 9060 5221 19613 0 5 95 0 0
 2 0 22016 645228 17804 3743168 0 3012 0 9032 5219 20287 0 7 93 0 0
 0 0 25600 674648 17804 3740152 0 3016 0 11148 5290 20518 0 7 93 0 0
procs -----------------------memory---------------------- ---swap-- -----io---- -system-- --------cpu--------
 r b swpd free buff cache si so bi bo in cs us sy id wa st
 1 0 28160 667968 17804 3737076 0 3076 0 9228 5336 19913 0 7 93 0 0
 0 0 31488 663008 17804 3734048 0 3028 0 9084 5377 19518 0 6 94 0 0
 2 0 34560 655620 17804 3731020 0 3028 0 9080 5356 20395 0 7 93 0 0
 0 0 37632 649356 17804 3727996 0 3024 0 9076 5258 19858 0 6 94 0 0
 1 0 40192 677924 17804 3724948 0 3064 0 11388 5503 22313 0 8 92 0 0
 0 0 43264 670968 17804 3721944 0 3004 0 9016 5211 19591 0 7 93 0 0
 2 0 46336 665016 17804 3718996 0 2948 0 8844 5167 18978 0 7 93 0 0
 2 0 49664 658068 17804 3715896 0 3100 0 9300 5304 20485 0 7 93 0 0
 1 0 52480 650784 17804 3712944 0 2984 0 8952 5150 19377 0 5 95 0 0
 1 0 55296 677788 17804 3710012 0 2936 0 10892 5300 20757 0 6 93 0 0
 1 0 58624 673908 17804 3707076 0 2932 0 6984 4462 16264 0 4 96 0 0
 0 0 58880 670460 17804 3709260 0 1128 0 2260 1968 6407 1 2 97 0 0
 0 0 58880 670552 17804 3709188 0 0 0 0 259 487 0 0 100 0 0
 0 0 58880 736572 17804 3643148 0 0 0 0 255 499 0 0 100 0 0
 0 0 58880 744792 17804 3642492 0 0 0 2124 535 2045 0 1 99 0 0
 0 0 58880 746520 17804 3642492 0 0 0 0 224 539 0 0 100 0 0
 0 0 58880 746236 17804 3642492 0 0 0 0 289 775 0 0 100 0 0
 0 0 58880 746032 17804 3642752 0 0 0 0 411 831 1 0 99 0 0
 0 0 58880 747872 17804 3642828 0 0 0 136 253 599 0 0 100 0 0
 0 0 58880 747916 17804 3642492 0 0 0 2360 510 1911 0 1 99 0 0
 0 0 58880 738084 17804 3652720 0 0 0 0 441 1131 0 0 99 0 0

$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu Focal Fossa (development branch)
Release: 20.04
Codename: focal
$ cat /proc/cmdline
BOOT_IMAGE=/BOOT/ubuntu@/vmlinuz-5.4.0-12-generic root=ZFS=rpool/ROOT/ubuntu ro root=ZFS=rpool/ROOT/ubuntu quiet splash acpi_osi=! "acpi_osi=Windows 2015" cgroup_disable=memory vt.handoff=1
$ uname -a
Linux millbarge 5.4.0-12-generic #15-Ubuntu SMP Tue Jan 21 15:12:29 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux

Thanks