Public bug reported:
At seemingly random intervals throughout the day gnome-shell becomes
very active, the CPU gets very busy and the fans kick in because of the
large load.
I attached health-check to the busy process for 60 seconds and got the
following utilization stats:
sudo health-check -p gnome-shell
[sudo] password for cking:
CPU usage (in terms of 1 CPU):
PID Process USR% SYS% TOTAL% Duration
3271 gnome-shell 29.82 11.20 41.02 60.00 (high load)
Page Faults:
PID Process Minor/sec Major/sec Total/sec
3271 gnome-shell 4.60 0.00 4.60
Context Switches:
PID Process Voluntary Involuntary Total
Ctxt Sw/Sec Ctxt Sw/Sec Ctxt Sw/Sec
3271 gnome-shell 8282.89 16.93 8299.83 (high)
3294 gnome-shell 909.89 1.40 911.29 (quite
high)
3305 gnome-shell 7.35 0.00 7.35 (low)
3300 gnome-shell 7.12 0.00 7.12 (low)
3299 gnome-shell 6.60 0.00 6.60 (low)
3303 gnome-shell 6.57 0.00 6.57 (low)
3279 gnome-shell 5.97 0.00 5.97 (low)
3304 gnome-shell 5.95 0.00 5.95 (low)
3301 gnome-shell 5.37 0.00 5.37 (low)
3298 gnome-shell 5.07 0.00 5.07 (low)
3302 gnome-shell 4.97 0.00 4.97 (low)
3277 gnome-shell 3.18 0.00 3.18 (low)
3280 gnome-shell 0.27 0.02 0.28 (very low)
3286 gnome-shell 0.18 0.03 0.22 (very low)
3288 gnome-shell 0.18 0.00 0.18 (very low)
3285 gnome-shell 0.18 0.00 0.18 (very low)
3287 gnome-shell 0.15 0.02 0.17 (very low)
Total 9251.88 18.40 9270.28
File I/O operations:
PID Process Count Op Filename
3271 gnome-shell 2 R
/usr/share/icons/Yaru/cursors/bottom_side
3271 gnome-shell 1 C
/usr/share/icons/Yaru/cursors/bottom_side
3271 gnome-shell 1 O
/usr/share/icons/Yaru/cursors/bottom_side
Total 4
Op: O=Open, R=Read, W=Write, C=Close
File I/O Operations per second:
PID Process Open Close Read Write
3271 gnome-shell 0.02 0.02 0.03 0.00
System calls traced:
PID Process Syscall Count Rate/Sec Total
μSecs % Call Time
3271 gnome-shell recvmsg 86510 1441.8150
2874761 0.4511
3271 gnome-shell ioctl 60197 1003.2706
2474118 0.3883
3271 gnome-shell poll 33430 557.1596
28079642 4.4066
3271 gnome-shell getpid 20354 339.2290
594754 0.0933
3271 gnome-shell writev 14482 241.3636
655887 0.1029
3271 gnome-shell futex 11787 196.4475
988686 0.1552
3271 gnome-shell write 9189 153.1481
344908 0.0541
3271 gnome-shell read 5981 99.6821
160471 0.0252
3271 gnome-shell mprotect 450 7.4999
11522 0.0018
3271 gnome-shell mmap 14 0.2333
843 0.0001
3271 gnome-shell getrusage 12 0.2000
357 0.0001
3271 gnome-shell recvfrom 9 0.1500
173 0.0000
3271 gnome-shell close 4 0.0667
451 0.0001
3271 gnome-shell openat 3 0.0500
185 0.0000
3271 gnome-shell timerfd_create 3 0.0500
158 0.0000
3271 gnome-shell timerfd_settime 3 0.0500
188 0.0000
3271 gnome-shell newfstatat 1 0.0167
38 0.0000
3271 gnome-shell lseek 1 0.0167
31 0.0000
3271 gnome-shell restart_syscall 1 0.0167
464 0.0001
3277 gnome-shell inotify_add_watch 60 1.0000
4858 0.0008
3277 gnome-shell poll 15 0.2500
55977520 8.7846
3277 gnome-shell restart_syscall 1 0.0167
2283302 0.3583
3279 gnome-shell poll 64 1.0667
32540487 5.1066
3279 gnome-shell write 45 0.7500
1795 0.0003
3279 gnome-shell recvmsg 26 0.4333
1159 0.0002
3279 gnome-shell read 18 0.3000
363 0.0001
3279 gnome-shell futex 7 0.1167
146 0.0000
3279 gnome-shell sendmsg 2 0.0333
124 0.0000
3279 gnome-shell restart_syscall 1 0.0167
11793048 1.8507
3280 gnome-shell restart_syscall 1 0.0167
0 0.0000
3285 gnome-shell futex 1 0.0167
0 0.0000
3286 gnome-shell futex 1 0.0167
0 0.0000
3287 gnome-shell futex 1 0.0167
0 0.0000
3288 gnome-shell futex 1 0.0167
0 0.0000
3294 gnome-shell futex 15144 252.3968
57821026 9.0739
3294 gnome-shell ioctl 9612 160.1980
310731 0.0488
3294 gnome-shell munmap 13 0.2167
895 0.0001
3298 gnome-shell futex 95 1.5833
57161056 8.9703
3298 gnome-shell getpid 10 0.1667
256 0.0000
3298 gnome-shell gettid 10 0.1667
245 0.0000
3298 gnome-shell sched_getaffinity 10 0.1667
231 0.0000
3299 gnome-shell futex 112 1.8666
54323144 8.5250
3299 gnome-shell getpid 18 0.3000
366 0.0001
3299 gnome-shell gettid 18 0.3000
515 0.0001
3299 gnome-shell sched_getaffinity 18 0.3000
371 0.0001
3300 gnome-shell futex 127 2.1166
54327428 8.5257
3300 gnome-shell getpid 17 0.2833
306 0.0000
3300 gnome-shell gettid 17 0.2833
333 0.0001
3300 gnome-shell sched_getaffinity 17 0.2833
292 0.0000
3301 gnome-shell futex 97 1.6166
54326990 8.5256
3301 gnome-shell getpid 13 0.2167
271 0.0000
3301 gnome-shell gettid 13 0.2167
263 0.0000
3301 gnome-shell sched_getaffinity 13 0.2167
286 0.0000
3302 gnome-shell futex 97 1.6166
57178091 8.9730
3302 gnome-shell getpid 8 0.1333
161 0.0000
3302 gnome-shell gettid 8 0.1333
181 0.0000
3302 gnome-shell sched_getaffinity 8 0.1333
139 0.0000
3303 gnome-shell futex 120 2.0000
54325148 8.5253
3303 gnome-shell getpid 15 0.2500
270 0.0000
3303 gnome-shell gettid 15 0.2500
306 0.0000
3303 gnome-shell sched_getaffinity 15 0.2500
282 0.0000
3304 gnome-shell futex 107 1.7833
54326438 8.5255
3304 gnome-shell getpid 16 0.2667
296 0.0000
3304 gnome-shell sched_getaffinity 16 0.2667
291 0.0000
3304 gnome-shell gettid 16 0.2667
315 0.0000
3305 gnome-shell futex 136 2.2666
54324278 8.5252
3305 gnome-shell getpid 16 0.2667
400 0.0001
3305 gnome-shell sched_getaffinity 16 0.2667
391 0.0001
3305 gnome-shell gettid 16 0.2667
363 0.0001
Total 268674 4477.8431
637222794
Top polling system calls:
PID Process Syscall Rate/Sec Infinite Zero
Minimum Maximum Average
Timeouts Timeouts
Timeout Timeout Timeout
3271 gnome-shell poll 557.1596 21027 5649
0.0 sec 200.0 msec 11.8 msec
3277 gnome-shell poll 0.2500 0 0
4.0 sec 4.0 sec 4.0 sec
3279 gnome-shell poll 1.0667 18 46
0.0 sec 0.0 sec 0.0 sec
Total 558.4762 21045 5695
Distribution of poll timeout times:
10.0 100.0 1.0
10.0 100.0 1.0 10.0 100.0
up to to to to
to to to to or more
Zero 9.9 99.9 999.9 9.9
99.9 999.9 9.9 99.9 Infinite
PID Process Syscall sec usec usec usec
msec msec msec sec sec sec Wait
3271 gnome-shell poll 5649 - - -
2991 1835 1928 - - - 21027
3277 gnome-shell poll 0 - - - -
- - 15 - - 0
3279 gnome-shell poll 46 - - - -
- - - - - 18
Polling system call analysis:
gnome-shell (3271), poll:
1202 immediate timed out calls with zero timeout (non-blocking peeks)
30 repeated timed out polled calls with non-zero timeouts (light
polling)
18 repeated immediate timed out polled calls with zero timeouts (heavy
polling peeks)
gnome-shell (3279), poll:
20 immediate timed out calls with zero timeout (non-blocking peeks)
4 repeated immediate timed out polled calls with zero timeouts (heavy
polling peeks)
Filesystem Syncs:
None.
Inotify watches added:
PID Process Rate/Sec File
3277 gnome-shell 0.250
/home/cking/.local/share/desktop-directories
3277 gnome-shell 0.250 /usr/local/share/desktop-directories
3277 gnome-shell 0.250
/usr/share/ubuntu-xorg/desktop-directories
3277 gnome-shell 0.250
/var/lib/snapd/desktop/desktop-directories
Memory:
Per Process Memory (K):
PID Process Type Size RSS PSS
3271 gnome-shell Stack 132 112 112
3271 gnome-shell Heap 4009796 184276 184276
3271 gnome-shell Mapped 758348 118980 41758
Change in memory (K/second):
PID Process Type Size RSS PSS
3271 gnome-shell Heap 0.00 0.27 0.27 (growing
slowly)
3271 gnome-shell Mapped -0.07 0.00 0.00 (shrinking
slowly)
Heap Change via brk():
None.
Memory Change via mmap() and munmap():
PID mmaps munmaps Change (K) Rate (K/Sec)
3271 gnome-shell 14 0 10416 173.60
(growing moderately fast)
3294 gnome-shell 0 13 -10292 -171.53
(shrinking moderately fast)
Open Network Connections:
PID Process Proto Send Receive Address
3271 gnome-shell UNIX 0.00 B 498.75 K @/tmp/.X11-unix/X0
3271 gnome-shell UNIX 0.00 B 214.43 K
/run/dbus/system_bus_socket
3279 gnome-shell UNIX 0.00 B 3.08 K /run/snapd.socket
3279 gnome-shell UNIX 456.00 B 168.00 B
/run/systemd/journal/stdout
3271 gnome-shell UNIX 0.00 B 0.00 B
/run/systemd/journal/stdout
3271 gnome-shell UNIX 0.00 B 0.00 B /run/user/1000/bus
3271 gnome-shell UNIX 0.00 B 0.00 B @/tmp/.ICE-unix/3236
3271 gnome-shell NETLINK 0.00 B 0.00 B netlink:[43938]
3271 gnome-shell NETLINK 0.00 B 0.00 B netlink:[43937]
3271 gnome-shell UNIX 0.00 B 0.00 B /run/snapd.socket
Total 456.00 B 716.42 K
Any ideas?
ProblemType: Bug
DistroRelease: Ubuntu 21.10
Package: gnome-shell 40.2-1ubuntu6
ProcVersionSignature: Ubuntu 5.13.0-12.12-generic 5.13.3
Uname: Linux 5.13.0-12-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu68
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Mon Sep 13 10:25:07 2021
DisplayManager: gdm3
InstallationDate: Installed on 2021-06-07 (97 days ago)
InstallationMedia: Ubuntu 21.10 "Impish Indri" - Alpha amd64 (20210607)
RelatedPackageVersions: mutter-common 40.2.1-1ubuntu1
SourcePackage: gnome-shell
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: gnome-shell (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug impish
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1943434
Title:
gnome-shell periodicall becomes extreemely active and eats CPU like
crazy
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1943434/+subscriptions
--
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
