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2025-11-26 - 08:54
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 100 highest latencies:
System rack4slot1.osadl.org (updated Wed Nov 26, 2025 00:45:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
454021750,3sleep315098-21kworker/3:019:11:103
454021750,3sleep315098-21kworker/3:019:11:103
2574821220,3sleep00-21swapper/000:28:240
2574821220,3sleep00-21swapper/000:28:240
2639721140,3sleep20-21swapper/200:29:462
2639721140,3sleep20-21swapper/200:29:462
1504421140,3chrt0-21swapper/021:46:070
1504421140,3chrt0-21swapper/021:46:070
2909821070,4sleep30-21swapper/323:16:493
2909821070,4sleep30-21swapper/323:16:493
3238421050,3chrt0-21swapper/200:36:172
3238421050,3chrt0-21swapper/200:36:172
266542900,3sleep20-21swapper/221:21:542
134752890,4sleep00-21swapper/019:36:030
134752890,4sleep00-21swapper/019:36:030
138832880,3sleep20-21swapper/221:05:462
138832880,3sleep20-21swapper/221:05:462
15512780,3sleep01392-21/usr/sbin/munin21:31:000
230762760,2chrt0-21swapper/321:55:593
230762760,2chrt0-21swapper/321:55:593
83772710,4sleep30-21swapper/300:07:013
83772710,4sleep30-21swapper/300:07:013
64002690,2sleep06547-21grep19:16:070
282492670,3sleep30-21swapper/300:31:083
282492670,3sleep30-21swapper/300:31:083
66022620,2sleep30-21swapper/323:28:513
66022620,2sleep30-21swapper/323:28:513
206102600,2sleep20-21swapper/219:55:592
206102600,2sleep20-21swapper/219:55:592
4866995726,26cyclictest131rcu_preempt19:40:561
4866995726,26cyclictest131rcu_preempt19:40:561
232022570,2sleep30-21swapper/323:10:583
232022570,2sleep30-21swapper/323:10:583
486799552,40cyclictest29990-21ssh23:55:562
282722550,3sleep00-21swapper/022:39:360
270192550,3sleep20-21swapper/222:00:522
270192550,3sleep20-21swapper/222:00:522
120982550,3chrt0-21swapper/222:57:192
120982550,3chrt0-21swapper/222:57:192
4865995419,24cyclictest38850irq/55-eth021:25:540
4865995419,24cyclictest38850irq/55-eth021:25:540
54012520,2sleep20-21swapper/220:41:032
81632510,3sleep30-21swapper/321:38:183
81632510,3sleep30-21swapper/321:38:183
77612500,2sleep17921-21fschecks_time22:15:591
77612500,2sleep17921-21fschecks_time22:15:591
486699501,9cyclictest131rcu_preempt20:25:561
486699501,9cyclictest131rcu_preempt20:25:561
176552500,2sleep117661-21sshd23:04:261
176552500,2sleep117661-21sshd23:04:261
486699492,39cyclictest9916-21ssh21:40:571
486699492,39cyclictest9916-21ssh21:40:571
38362490,3sleep20-21swapper/220:36:092
38362490,3sleep20-21swapper/220:36:092
486699472,38cyclictest14229-21ssh21:45:571
486699472,38cyclictest14229-21ssh21:45:571
4867994612,17cyclictest27-21ksoftirqd/219:40:562
4867994612,17cyclictest27-21ksoftirqd/219:40:562
486599464,7cyclictest131rcu_preempt23:10:570
486599464,7cyclictest131rcu_preempt23:10:570
23092460,3sleep30-21swapper/300:40:443
23092460,3sleep30-21swapper/300:40:443
147982460,3chrt0-21swapper/200:15:442
147982460,3chrt0-21swapper/200:15:442
486699454,8cyclictest131rcu_preempt21:20:581
4865994533,7cyclictest38850irq/55-eth022:11:000
4865994533,7cyclictest38850irq/55-eth022:11:000
216122450,3sleep10-21swapper/121:54:121
216122450,3sleep10-21swapper/121:54:121
153942450,2sleep00-21swapper/023:39:000
153942450,2sleep00-21swapper/023:39:000
486599445,32cyclictest732-21runrttasks21:15:570
486599445,32cyclictest732-21runrttasks21:15:570
486599442,25cyclictest542-21snmpd21:55:570
486599442,25cyclictest542-21snmpd21:55:570
158962440,4sleep20-21swapper/200:16:042
158962440,4sleep20-21swapper/200:16:042
113232440,3sleep30-21swapper/321:41:203
113232440,3sleep30-21swapper/321:41:203
4866994318,19cyclictest10821-21sh00:10:571
4866994318,19cyclictest10821-21sh00:10:571
186362420,3sleep20-21swapper/223:05:512
186362420,3sleep20-21swapper/223:05:512
486699411,32cyclictest23327-21ssh00:25:571
486699411,32cyclictest23327-21ssh00:25:571
76242390,3sleep20-21swapper/222:15:552
76242390,3sleep20-21swapper/222:15:552
486799392,29cyclictest1260-21ssh22:45:542
486799392,29cyclictest1260-21ssh22:45:542
486799392,29cyclictest1260-21ssh22:45:542
89622380,2sleep08966-21sh00:07:590
89622380,2sleep08966-21sh00:07:590
54252380,3sleep30-21swapper/322:50:453
54252380,3sleep30-21swapper/322:50:453
54252380,3sleep30-21swapper/322:50:453
486799381,33cyclictest26097-21cat20:10:542
486699384,26cyclictest1307-21ssh21:30:521
486699384,26cyclictest1307-21ssh21:30:521
486699383,28cyclictest1394-21ssh21:30:571
94562370,4sleep20-21swapper/223:31:232
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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