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2026-04-07 - 06:21
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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 Tue Apr 07, 2026 00:46:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1060865998123,58cyclictest1229704-21/usr/sbin/munin00:15:136
1060865997315,39cyclictest1078910-21sed19:40:206
1060865997233,39cyclictest0-21swapper/623:28:206
1060865997233,19cyclictest1060858-21cyclictest19:27:046
1060865997233,19cyclictest1060858-21cyclictest19:27:036
1060865997233,19cyclictest0-21swapper/621:11:446
1060865997132,39cyclictest7850ktimers/622:23:286
1060865997132,39cyclictest0-21swapper/623:32:406
1060865997111,59cyclictest1177573-21kworker/u32:4+events_unbound23:42:026
1060865997031,19cyclictest0-21swapper/622:56:226
1060865997031,19cyclictest0-21swapper/622:27:406
1060865997010,59cyclictest1127433-21kworker/u32:1+events_unbound21:15:046
1060865996911,39cyclictest744688-21kworker/u32:0+events_unbound19:34:166
1060863996910,39cyclictest1097690-21taskset20:15:154
1060865996829,39cyclictest0-21swapper/621:29:386
1060865996829,19cyclictest0-21swapper/620:09:286
1060865996811,38cyclictest1138602-21kworker/u32:2+events_unbound22:51:406
106086599679,39cyclictest1177573-21kworker/u32:4+events_unbound22:43:136
1060865996728,19cyclictest0-21swapper/622:08:206
106086599656,39cyclictest236199-21snmpd00:32:066
106086599656,19cyclictest0-21swapper/621:23:346
1060865996526,21cyclictest0-21swapper/623:35:066
1060865996526,21cyclictest0-21swapper/623:35:066
1060865996324,19cyclictest0-21swapper/620:43:226
1060865996324,19cyclictest0-21swapper/619:58:386
1060865996042,18cyclictest0-21swapper/622:15:226
1060865996021,39cyclictest0-21swapper/623:04:266
106086599590,40cyclictest1220079-21ld23:55:206
1060865995738,19cyclictest781ktimers/623:24:146
106085999570,38cyclictest1120033-21taskset20:55:150
1060865995655,1cyclictest781ktimers/621:00:416
1060865995637,19cyclictest1074862-21/usr/sbin/munin19:35:126
1060865995436,18cyclictest105-21kcompactd022:00:106
1060865995419,35cyclictest0-21swapper/621:36:506
1060865995419,35cyclictest0-21swapper/620:04:356
1060865995416,19cyclictest1106562-21cat20:30:166
1060865995415,39cyclictest0-21swapper/600:10:206
1060865995414,19cyclictest0-21swapper/619:54:366
1060865995319,34cyclictest0-21swapper/619:24:166
1060865995319,34cyclictest0-21swapper/619:24:166
1060865995319,15cyclictest0-21swapper/622:34:516
1060865995319,15cyclictest0-21swapper/619:14:206
1060865995319,15cyclictest0-21swapper/619:14:196
1060865995314,39cyclictest0-21swapper/623:47:386
1060865995314,39cyclictest0-21swapper/621:54:406
1060865995314,39cyclictest0-21swapper/621:32:266
1060865995314,19cyclictest0-21swapper/622:36:186
1060865995314,19cyclictest0-21swapper/621:09:546
1060865995314,19cyclictest0-21swapper/600:23:386
1060865995314,19cyclictest0-21swapper/600:09:496
1060865995313,19cyclictest0-21swapper/620:25:006
1060865995313,19cyclictest0-21swapper/620:19:486
1060861995314,19cyclictest0-21swapper/219:55:152
1060865995233,19cyclictest1192709-21ntpq23:05:206
1060865995233,19cyclictest0-21swapper/622:14:426
1060865995233,19cyclictest0-21swapper/621:49:516
1060865995233,19cyclictest0-21swapper/621:43:366
1060865995233,19cyclictest0-21swapper/620:25:246
1060865995214,38cyclictest1174125-21kworker/u32:1+events_unbound23:16:496
1060865995213,39cyclictest771rcuc/621:55:206
1060865995213,19cyclictest0-21swapper/619:18:386
1060864995214,19cyclictest0-21swapper/521:40:165
1060865995133,18cyclictest0-21swapper/620:46:226
1060865995132,19cyclictest0-21swapper/623:54:286
1060865995132,19cyclictest0-21swapper/622:47:066
1060865995132,19cyclictest0-21swapper/620:38:246
1060865995132,19cyclictest0-21swapper/620:14:346
1060865995132,19cyclictest0-21swapper/619:48:066
1060865995132,19cyclictest0-21swapper/600:29:166
1060865995112,39cyclictest1177573-21kworker/u32:4+events_unbound00:03:026
1060865995112,39cyclictest0-21swapper/623:11:226
1060864995113,19cyclictest70-21ksoftirqd/520:50:145
1060863995133,0cyclictest0-21swapper/422:55:154
1060865995031,19cyclictest0-21swapper/620:56:346
1060865995031,19cyclictest0-21swapper/620:54:126
1060865995011,19cyclictest0-21swapper/600:35:226
1060859994911,19cyclictest0-21swapper/019:15:150
1060859994911,19cyclictest0-21swapper/000:05:160
1060861994728,19cyclictest0-21swapper/222:05:172
106086399452,19cyclictest0-21swapper/400:05:164
106086199446,19cyclictest0-21swapper/222:30:162
106086199446,19cyclictest0-21swapper/220:00:162
106086099446,19cyclictest0-21swapper/122:05:171
106086399434,38cyclictest0-21swapper/420:55:154
106086199431,19cyclictest0-21swapper/220:45:162
106086499423,39cyclictest0-21swapper/500:15:155
106085999424,19cyclictest0-21swapper/020:50:150
106086399413,19cyclictest0-21swapper/423:40:154
1060859994122,19cyclictest0-21swapper/021:05:170
106086399402,19cyclictest0-21swapper/400:25:154
106086199402,19cyclictest0-21swapper/222:55:152
106086099402,19cyclictest0-21swapper/120:00:161
1060859994022,18cyclictest0-21swapper/022:00:160
106086099391,19cyclictest0-21swapper/119:50:161
106085999390,20cyclictest16-21ksoftirqd/022:30:160
1060866993838,0cyclictest0-21swapper/721:20:597
106086399380,19cyclictest0-21swapper/420:35:154
106086399380,19cyclictest0-21swapper/400:20:154
106086499370,18cyclictest0-21swapper/521:45:145
1060864993616,19cyclictest0-21swapper/520:25:155
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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