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2026-05-23 - 10:53
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
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 rackfslot7.osadl.org (updated Sat May 23, 2026 00:46:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1859477991078,98cyclictest0-21swapper/523:00:155
1859455999475,19cyclictest0-21swapper/122:05:151
1859472998749,38cyclictest1908347-21kworker/0:220:48:264
1859489997838,40cyclictest30750irq/60-ahci[0000:00:07.0]21:20:377
1859489997436,38cyclictest2010190-21latency23:40:177
1859489997335,19cyclictest2027826-21runrttasks00:14:417
1859489997133,38cyclictest0-21swapper/719:50:477
1859462997113,19cyclictest191rcu_preempt00:05:162
1859489997032,38cyclictest0-21swapper/721:32:437
1859489997030,39cyclictest0-21swapper/723:03:117
1859489996930,39cyclictest0-21swapper/700:29:357
1859477996930,39cyclictest681rcuc/522:50:145
1859489996830,38cyclictest0-21swapper/721:40:397
1859472996628,38cyclictest2022180-21kworker/0:000:12:414
1859489996222,39cyclictest0-21swapper/720:10:037
1859489996017,19cyclictest1973344-21munin-run22:35:017
185948999580,39cyclictest1987005-21cat23:00:017
1859451995839,19cyclictest0-21swapper/023:30:160
1859489995737,20cyclictest1086-21runrttasks19:46:037
1859489995637,19cyclictest1086-21runrttasks21:15:317
1859489995618,19cyclictest236199-21snmpd23:48:017
185948999560,36cyclictest0-21swapper/700:05:257
1859489995537,18cyclictest871ktimers/723:06:237
1859489995536,19cyclictest871ktimers/721:04:357
1859489995517,19cyclictest1903538-21apt20:30:117
1859489995517,19cyclictest1903538-21apt20:30:117
1859489995517,19cyclictest101550irq/39-eno2-TxRx-023:50:197
1859489995517,19cyclictest0-21swapper/722:20:247
185948999550,15cyclictest0-21swapper/722:40:497
1859489995436,18cyclictest1886341-21/usr/sbin/munin19:55:247
1859489995419,35cyclictest0-21swapper/723:38:237
1859489995419,35cyclictest0-21swapper/721:12:237
1859489995419,35cyclictest0-21swapper/700:31:117
1859489995419,35cyclictest0-21swapper/700:31:117
1859489995419,15cyclictest0-21swapper/722:39:237
1859489995419,15cyclictest0-21swapper/720:01:157
1859489995416,19cyclictest1889969-21aten2.4_rfpower20:05:147
1859489995416,19cyclictest0-21swapper/721:52:417
1859489995415,39cyclictest1968930-21taskset22:25:177
1859489995415,39cyclictest0-21swapper/721:57:577
1859489995414,39cyclictest0-21swapper/719:17:177
185948999540,54cyclictest0-21swapper/722:03:257
185948999540,54cyclictest0-21swapper/720:21:457
185948999540,15cyclictest0-21swapper/723:25:317
185948999540,15cyclictest0-21swapper/721:07:577
1859489995319,15cyclictest0-21swapper/720:58:157
1859489995319,15cyclictest0-21swapper/720:15:237
1859489995315,19cyclictest0-21swapper/722:10:157
1859489995314,39cyclictest0-21swapper/723:56:217
1859489995314,39cyclictest0-21swapper/722:50:257
1859489995314,39cyclictest0-21swapper/722:48:477
1859489995314,39cyclictest0-21swapper/722:17:237
1859489995314,39cyclictest0-21swapper/722:09:217
1859489995314,39cyclictest0-21swapper/721:35:597
1859489995314,39cyclictest0-21swapper/721:26:177
1859489995314,39cyclictest0-21swapper/720:51:497
1859489995314,39cyclictest0-21swapper/720:40:577
1859489995314,39cyclictest0-21swapper/720:25:597
1859489995314,39cyclictest0-21swapper/719:40:097
1859489995314,39cyclictest0-21swapper/719:20:097
1859489995314,39cyclictest0-21swapper/719:13:417
1859489995314,39cyclictest0-21swapper/700:36:297
1859489995314,39cyclictest0-21swapper/700:21:377
1859489995314,39cyclictest0-21swapper/700:01:417
1859489995313,39cyclictest0-21swapper/723:20:297
1859489995313,39cyclictest0-21swapper/723:18:537
1859489995313,39cyclictest0-21swapper/719:25:117
1859489995233,19cyclictest0-21swapper/719:34:317
1859489995233,19cyclictest0-21swapper/700:15:157
1859489995214,19cyclictest0-21swapper/723:33:537
1859489995213,39cyclictest0-21swapper/723:12:497
1859489995212,39cyclictest0-21swapper/719:35:137
1859477995213,20cyclictest0-21swapper/519:45:145
1859462995214,19cyclictest0-21swapper/223:15:142
1859451995233,19cyclictest0-21swapper/022:10:160
1859451995213,19cyclictest0-21swapper/020:45:150
1859489995132,19cyclictest0-21swapper/720:46:597
1859489995112,39cyclictest0-21swapper/721:45:407
1859482995113,19cyclictest0-21swapper/620:35:136
1859482995113,19cyclictest0-21swapper/620:35:136
1859462995113,19cyclictest0-21swapper/222:00:152
1859482995011,0cyclictest0-21swapper/619:50:156
1859467994911,19cyclictest0-21swapper/320:45:153
185946299499,39cyclictest0-21swapper/222:25:152
1859462994911,19cyclictest0-21swapper/223:55:142
1859489994830,18cyclictest0-21swapper/720:39:237
1859489994830,18cyclictest0-21swapper/720:39:237
1859455994810,19cyclictest0-21swapper/119:45:151
185945599479,38cyclictest0-21swapper/121:55:161
185948299468,19cyclictest0-21swapper/623:05:166
185947799468,19cyclictest0-21swapper/520:15:155
1859467994526,19cyclictest0-21swapper/320:35:143
1859467994526,19cyclictest0-21swapper/320:35:133
185945599457,19cyclictest0-21swapper/100:30:151
185945599457,19cyclictest0-21swapper/100:30:151
1859451994545,0cyclictest0-21swapper/022:57:210
1859482994425,19cyclictest0-21swapper/619:15:156
1859472994426,18cyclictest1987368-21kworker/u32:0+flush-8:023:24:384
185948299435,19cyclictest0-21swapper/622:40:156
185947799424,19cyclictest0-21swapper/500:05:165
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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