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2022-11-27 - 15:31

x86 Intel Core i5-8365UE @1600 MHz, Linux 6.0.0-rt11 (Profile)

Latency plot of system in rack #e, slot #1
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -Sp90 -i200 -h400 -q done
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rackeslot1.osadl.org (updated Tue Oct 11, 2022 12:43:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3182916902418,2cyclictest0-21swapper/011:40:000
318291790221,16cyclictest3497273-21apt-get09:30:151
3182917902017,2cyclictest3538862-21apt-config10:05:001
318291790200,15cyclictest3545408-21tr10:10:141
3182916901915,3cyclictest3496464-21kworker/u8:1-ext4-rsv-conversion09:50:000
318291690183,4cyclictest3619642-21kworker/u8:0+events_unbound10:57:370
3182917901714,2cyclictest3565126-21kthreadcore10:25:181
3182917901714,2cyclictest3364878-21systemctl08:50:001
3182917901714,2cyclictest3364878-21systemctl08:50:001
3182917901713,3cyclictest3707279-21kthreadcore12:05:231
3182917901713,3cyclictest3707279-21kthreadcore12:05:221
3182917901713,3cyclictest3387719-21irq-smp_affinit09:05:241
3182916901714,2cyclictest3188851-21perf07:15:010
3182916901714,2cyclictest3188851-21perf07:15:000
3182916901713,2cyclictest1592-21systemd-logind10:55:020
3182916901713,1cyclictest441rcuog/212:23:290
3182916901712,2cyclictest441rcuog/207:53:460
3182921901613,1cyclictest0-21swapper/211:20:012
318291790169,1cyclictest181rcu_preempt09:25:141
3182917901613,2cyclictest3612790-21pmu-power10:45:271
3182917901613,2cyclictest3346867-21systemd-run08:35:021
3182917901613,2cyclictest1592-21systemd-logind11:40:001
318291790161,10cyclictest3371393-21/usr/sbin/munin08:55:291
3182916901613,2cyclictest3711529-21irqcore12:10:200
3182916901613,2cyclictest3585404-21strings10:40:220
3182916901613,2cyclictest3550929-21/usr/sbin/munin10:15:010
3182916901613,2cyclictest3380080-21runrttasks09:00:220
3182916901612,3cyclictest3283028-21irq-smp_affinit08:08:570
3182916901611,2cyclictest441rcuog/208:28:240
318291790151,7cyclictest3734916-21apt-get12:30:171
3182917901512,2cyclictest3656552-21/usr/sbin/munin11:25:011
3182917901512,2cyclictest3644582-21munin-plugin-st11:15:001
3182917901512,2cyclictest3583239-21kthreadcore10:40:201
3182917901512,2cyclictest3351449-21mailstats08:35:321
3182917901512,2cyclictest1596-21in:imklog08:55:011
3182917901512,2cyclictest1571-21avahi-daemon11:55:251
3182917901512,2cyclictest0-21swapper/111:50:001
3182917901511,3cyclictest3733733-21unixbench-2d12:25:281
3182917901511,3cyclictest3555998-21unixbench-2d10:15:261
3182917901511,3cyclictest3529132-21kthreadcore09:55:221
3182917901511,3cyclictest3513619-21pmu-power09:40:251
3182917901511,3cyclictest3483409-21phc2sys09:15:271
318291790150,3cyclictest0-21swapper/107:46:151
318291690154,3cyclictest0-21swapper/010:09:520
3182916901512,2cyclictest3700544-21kthreadcore12:00:210
3182916901512,2cyclictest3641942-21kthreadcore11:10:210
3182916901512,2cyclictest3571509-21sed10:30:200
3182916901512,2cyclictest3571509-21sed10:30:200
3182916901512,2cyclictest3535151-21kthreadcore10:00:190
3182916901512,2cyclictest3352550-21apt-get08:40:020
3182916901512,2cyclictest3334300-21runrttasks08:23:260
3182916901511,3cyclictest3683229-21kthreadcore11:45:200
3182916901511,3cyclictest3561583-21phc2sys10:20:280
3182916901511,3cyclictest3389506-21irq-smp_affinit09:05:260
318291790145,5cyclictest0-21swapper/112:15:151
318291790142,7cyclictest0-21swapper/110:50:291
3182917901411,2cyclictest3746815-21/usr/sbin/munin12:40:021
3182917901411,2cyclictest3716172-21runrttasks12:12:251
3182917901411,2cyclictest3560825-21kthreadcore10:20:251
3182917901411,2cyclictest3544963-21systemd-run10:10:001
3182917901411,2cyclictest3269869-21head08:05:191
3182917901411,2cyclictest3199988-21sed07:20:311
3182917901411,2cyclictest3183948-21irqrtprio07:10:221
3182917901411,2cyclictest3183948-21irqrtprio07:10:211
3182917901410,3cyclictest3667014-21needreboot11:30:251
3182917901410,3cyclictest3356971-21kthreadcore08:40:221
3182917901410,3cyclictest3335100-21sh08:25:181
3182916901411,2cyclictest3354708-21kthreadcore08:40:210
3182916901411,2cyclictest3343051-21kthreadcore08:30:280
3182916901411,2cyclictest3202609-21kthreadcore07:25:210
3182916901411,2cyclictest1571-21avahi-daemon11:05:000
3182916901410,3cyclictest3578261-21kthreadcore10:35:220
3182916901410,3cyclictest3529288-21kthreadcore09:55:220
3182916901410,3cyclictest3361091-21kthreadcore08:45:230
3182916901410,3cyclictest3361091-21kthreadcore08:45:220
3182916901410,3cyclictest3227113-21kthreadcore07:45:230
3182916901410,3cyclictest3197025-21kthreadcore07:20:240
318291790131,7cyclictest3263468-21/usr/sbin/munin08:00:161
318291790131,3cyclictest3377414-21taskset09:00:161
3182917901310,2cyclictest3517287-21kthreadcore09:45:191
3182917901310,2cyclictest3220701-21kthreadcore07:40:201
3182917901310,2cyclictest0-21swapper/109:40:001
318291790130,3cyclictest0-21swapper/110:32:461
318291790130,3cyclictest0-21swapper/110:32:461
318291690139,3cyclictest3555256-21kthreadcore10:15:210
318291690139,3cyclictest3318673-21kthreadcore08:10:220
318291690139,3cyclictest3220465-21kthreadcore07:40:210
3182916901310,2cyclictest3744993-21kthreadcore12:35:230
3182916901310,2cyclictest3665097-21kthreadcore11:30:230
318292190129,2cyclictest0-21swapper/209:30:202
318291790129,2cyclictest1573-21dbus-daemon07:10:011
318291690129,2cyclictest3717802-21irqrtprio12:15:190
318291690120,6cyclictest3182986-21munin-run07:10:010
318292190108,1cyclictest0-21swapper/207:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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