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** Changed in: linux (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1973434
Title:
massive performance issues since 22.04 upgrade
Status in linux package in Ubuntu:
Confirmed
Bug description:
Hi,
After upgrading to 22.04 i had to fight with massive performance issues.
Browsers appeared to hang every other minute, youtube videos being
laggy and hang in between, applications in a virtualbox VM where slow
and also hanging every other minute to a level of not being useable.
On a pretty recent and powerful system just 2 years old.
I noticed CPU jumps in top, but also somehow thought it could be a graphics
issue so invested some time installing nvidia drivers properly.
Also I wondered if it might be the lowlatency kernel I normally use because I
do audio stuff, and switched to generic. But nothing helped.
ThenI had the idea it could be a kernel/scheduler issue because the
system wasn't always slow, but it appeared certain things kept hanging
when other processed had a lot of cpu for a few seconds.
So I got a recent mainline kernel, configured it with my last running
config from 21.10 before the update, made the debs and installed them,
and now can tell that a mainline kernel 5.17.7 with all the dkms
modules that i had before which got compiled automatically at
installation brings back a "normal" performance.
I can browse the web, run multiple youtube vids at once, even in
another browser, have thunderbird running, and a virtualbox machine
open with another browser for some web app testing and everything runs
fine and smooth, no lagging.
Not sure yet what the real reason is - either the kernel version, or a
patch in the ubuntu version, or the 22.04 kernel config so far, or
some configuration made in 21.10 that isn't good with 22.04 and it's
kernel anymore.
I will go ahead tomorrow and see if I can build a vanilla kernel with
the config from the ubuntu 22.04 kernel and "make oldconfig", then I
will be able to tell if only the config is making the difference.
Please let me know of there is anything I should test to further
analyze this issue, or any ideas I can try to solve it without having
to run a mainline manually installed kernel.
Thanks.
ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: linux-image-generic 5.15.0.30.33
ProcVersionSignature: Ubuntu 5.15.0-30.31-generic 5.15.30
Uname: Linux 5.15.0-30-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu82
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: henning 6198 F.... pulseaudio
/dev/snd/controlC1: henning 6198 F.... pulseaudio
CasperMD5CheckResult: unknown
CurrentDesktop: ubuntu:GNOME
Date: Sat May 14 23:02:38 2022
InstallationDate: Installed on 2020-04-12 (761 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
MachineType: LENOVO 20QV00CEGE
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.15.0-30-generic
root=/dev/mapper/vgubuntu-root ro
RelatedPackageVersions:
linux-restricted-modules-5.15.0-30-generic N/A
linux-backports-modules-5.15.0-30-generic N/A
linux-firmware 20220329.git681281e4-0ubuntu3
SourcePackage: linux
UpgradeStatus: Upgraded to jammy on 2022-04-28 (15 days ago)
dmi.bios.date: 12/06/2021
dmi.bios.release: 1.42
dmi.bios.vendor: LENOVO
dmi.bios.version: N2OET55W (1.42 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20QV00CEGE
dmi.board.vendor: LENOVO
dmi.board.version: SDK0T08861 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.ec.firmware.release: 1.23
dmi.modalias:
dmi:bvnLENOVO:bvrN2OET55W(1.42):bd12/06/2021:br1.42:efr1.23:svnLENOVO:pn20QV00CEGE:pvrThinkPadX1Extreme2nd:rvnLENOVO:rn20QV00CEGE:rvrSDK0T08861WIN:cvnLENOVO:ct10:cvrNone:skuLENOVO_MT_20QV_BU_Think_FM_ThinkPadX1Extreme2nd:
dmi.product.family: ThinkPad X1 Extreme 2nd
dmi.product.name: 20QV00CEGE
dmi.product.sku: LENOVO_MT_20QV_BU_Think_FM_ThinkPad X1 Extreme 2nd
dmi.product.version: ThinkPad X1 Extreme 2nd
dmi.sys.vendor: LENOVO
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