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2026-03-29 - 07:07
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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 Sun Mar 29, 2026 00:46:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2604212991277,119cyclictest0-21swapper/122:10:161
2604212991277,119cyclictest0-21swapper/122:10:161
260421399121103,18cyclictest0-21swapper/200:30:152
2604218999537,39cyclictest1-21systemd20:00:017
2604218999354,19cyclictest8750ktimers/700:35:267
2604218998323,39cyclictest2660925-21collect220:50:197
2604218997517,39cyclictest2667280-21taskset21:03:097
2604218997234,19cyclictest30750irq/60-ahci[0000:00:07.0]20:10:307
2604218997234,19cyclictest2607384-21aten2.4-expect19:15:137
2604218997133,19cyclictest2756551-21cat23:45:187
260421899689,59cyclictest101550irq/39-eno2-TxRx-022:30:107
260421899689,59cyclictest101550irq/39-eno2-TxRx-022:30:107
260421899679,39cyclictest2620948-21/usr/sbin/munin19:40:197
2604218996729,38cyclictest2699555-21timerandwakeup22:00:227
260421499678,19cyclictest0-21swapper/300:00:163
2604218996628,19cyclictest1086-21runrttasks22:43:227
260421899657,39cyclictest2782664-21latency_hist00:35:007
2604218996042,18cyclictest319-21ice-ptp-0000:f4:00.019:54:217
260421899602,39cyclictest1-21systemd00:25:007
2604218995920,39cyclictest2636329-21gcc20:05:197
2604218995919,39cyclictest877-21mta-sts-daemon21:46:347
2604218995720,19cyclictest2724051-21open_files22:45:217
2604218995719,38cyclictest2740313-21ntpq23:15:187
2604218995719,38cyclictest2727921-21munin-run22:55:007
2604218995618,38cyclictest2689254-21latency_hist21:45:027
2604218995537,18cyclictest872-21mta-sts-daemon21:16:037
2604211995537,17cyclictest0-21swapper/020:25:150
2604218995436,18cyclictest871ktimers/723:40:257
2604218995416,38cyclictest2677258-21ntpq21:20:207
2604218995414,39cyclictest2681347-21munin-run21:30:017
2604218995414,39cyclictest0-21swapper/720:35:077
2604212995436,18cyclictest0-21swapper/100:25:161
2604211995417,18cyclictest16-21ksoftirqd/022:50:150
2604218995334,19cyclictest2759495-21ntpq23:50:197
2604218995319,34cyclictest0-21swapper/723:33:197
2604218995315,38cyclictest0-21swapper/721:36:257
2604218995314,39cyclictest0-21swapper/723:37:167
2604218995314,39cyclictest0-21swapper/723:26:367
2604218995314,39cyclictest0-21swapper/722:16:467
2604218995314,39cyclictest0-21swapper/721:13:437
2604218995314,39cyclictest0-21swapper/720:18:357
2604218995314,39cyclictest0-21swapper/719:47:227
2604218995314,39cyclictest0-21swapper/719:31:237
2604218995314,39cyclictest0-21swapper/700:25:437
2604218995314,19cyclictest2634537-21sshd20:03:197
2604218995313,39cyclictest0-21swapper/723:24:267
2604218995313,39cyclictest0-21swapper/722:27:507
2604218995313,39cyclictest0-21swapper/720:43:157
2604218995313,39cyclictest0-21swapper/719:37:287
2604218995234,18cyclictest101550irq/39-eno2-TxRx-022:59:477
2604218995233,19cyclictest0-21swapper/722:11:217
2604218995233,19cyclictest0-21swapper/722:11:207
2604218995213,39cyclictest0-21swapper/723:56:107
2604218995213,39cyclictest0-21swapper/723:08:467
2604218995213,39cyclictest0-21swapper/722:35:257
2604218995213,39cyclictest0-21swapper/721:59:087
2604218995213,39cyclictest0-21swapper/721:32:327
2604218995213,39cyclictest0-21swapper/720:56:327
2604218995213,39cyclictest0-21swapper/720:33:127
2604218995213,39cyclictest0-21swapper/720:29:077
2604218995213,39cyclictest0-21swapper/700:15:077
2604218995213,39cyclictest0-21swapper/700:11:147
2604217995215,18cyclictest0-21swapper/623:00:166
2604216995214,19cyclictest0-21swapper/522:25:165
2604218995133,18cyclictest0-21swapper/719:22:217
2604218995133,18cyclictest0-21swapper/700:07:007
2604218995112,39cyclictest0-21swapper/723:01:427
2604218995112,39cyclictest0-21swapper/720:48:447
2604218995112,39cyclictest0-21swapper/719:12:117
2604218995112,19cyclictest0-21swapper/722:24:217
2604218995112,19cyclictest0-21swapper/722:24:207
2604215995113,19cyclictest0-21swapper/422:25:164
2604214995132,19cyclictest0-21swapper/323:25:153
2604212995113,19cyclictest0-21swapper/122:00:161
2604211995132,19cyclictest0-21swapper/021:00:150
2604218995032,18cyclictest0-21swapper/723:11:097
2604218995032,0cyclictest0-21swapper/721:05:217
2604216995032,18cyclictest781-21mta-sts-daemon20:35:155
2604213995031,19cyclictest0-21swapper/219:50:172
2604218994931,18cyclictest0-21swapper/721:52:217
2604218994931,18cyclictest0-21swapper/719:27:027
2604218994931,0cyclictest0-21swapper/720:20:507
2604217994911,19cyclictest0-21swapper/621:45:156
2604212994911,19cyclictest0-21swapper/119:55:181
2604211994911,19cyclictest0-21swapper/022:40:150
2604218994830,18cyclictest0-21swapper/700:01:287
2604211994830,18cyclictest0-21swapper/021:35:150
2604211994810,19cyclictest0-21swapper/021:30:160
2604218994627,19cyclictest0-21swapper/722:07:567
260421299456,19cyclictest0-21swapper/119:30:151
260421199457,19cyclictest0-21swapper/000:20:160
260421799446,19cyclictest0-21swapper/622:50:156
260421699445,39cyclictest0-21swapper/520:40:175
260421599445,39cyclictest0-21swapper/422:30:154
260421599445,39cyclictest0-21swapper/422:30:154
260421599444,39cyclictest0-21swapper/420:55:174
260421199446,38cyclictest0-21swapper/020:10:180
260421199446,19cyclictest0-21swapper/023:20:180
260421699430,43cyclictest0-21swapper/500:05:115
260421599435,19cyclictest0-21swapper/400:20:164
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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