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2026-06-29 - 16:49
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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
Characteristics of the 100 highest latencies:
System rackdslot0.osadl.org (updated Mon Jun 29, 2026 12:45:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2741399261,1cyclictest28-21ksoftirqd/209:37:122
2741299266,14cyclictest0-21swapper/108:50:421
27412992414,7cyclictest0-21swapper/112:20:161
2741299230,5cyclictest1-21systemd08:35:011
27413992221,1cyclictest28-21ksoftirqd/209:46:382
27413992121,0cyclictest28-21ksoftirqd/209:31:062
27413992121,0cyclictest28-21ksoftirqd/209:27:502
27413992121,0cyclictest28-21ksoftirqd/209:03:392
27413992118,2cyclictest31404-21uname12:00:232
2741199210,20cyclictest0-21swapper/007:54:430
27413992020,0cyclictest28-21ksoftirqd/210:49:062
27413992020,0cyclictest28-21ksoftirqd/209:55:352
27413992020,0cyclictest28-21ksoftirqd/209:06:302
27413992020,0cyclictest28-21ksoftirqd/208:55:062
27413992020,0cyclictest0-21swapper/208:29:352
2741199202,3cyclictest23757-21grep09:55:010
27411992018,1cyclictest0-21swapper/009:40:140
2741199200,3cyclictest0-21swapper/010:30:210
2741399192,16cyclictest271rcuc/210:05:232
27413991919,0cyclictest0-21swapper/209:50:252
27413991917,1cyclictest271rcuc/208:39:012
27413991911,5cyclictest0-21swapper/208:06:462
2741399190,17cyclictest0-21swapper/212:10:162
2741399190,16cyclictest0-21swapper/212:20:202
2741399190,0cyclictest0-21swapper/207:26:292
2741299194,9cyclictest0-21swapper/110:30:011
27412991917,1cyclictest25627-21nfsd411:50:171
2741199193,2cyclictest14590-21expr12:30:120
2741199192,16cyclictest3983-21H222:10:210
2741199192,16cyclictest0-21swapper/009:55:370
2741199190,18cyclictest870-21systemd-logind08:51:530
2741399182,15cyclictest28-21ksoftirqd/211:10:222
2741399182,15cyclictest271rcuc/210:58:552
27413991817,1cyclictest271rcuc/210:02:572
27413991816,1cyclictest271rcuc/211:50:142
27413991816,1cyclictest0-21swapper/210:41:362
27413991815,2cyclictest27810-21fschecks_time11:55:142
27413991814,3cyclictest11878-21munin-run07:40:002
27413991814,1cyclictest8125-21cstates11:20:132
27413991812,5cyclictest0-21swapper/208:30:192
2741399181,16cyclictest0-21swapper/211:45:192
27412991816,1cyclictest0-21swapper/107:11:361
27412991814,3cyclictest30677-21grep08:10:181
27412991814,3cyclictest0-21swapper/108:28:561
27412991814,3cyclictest0-21swapper/107:57:321
2741299180,3cyclictest30903-21munin-run09:10:011
2741299180,18cyclictest0-21swapper/109:46:591
2741199182,15cyclictest0-21swapper/011:55:590
27411991814,3cyclictest993-21dbus-daemon07:45:200
27411991814,1cyclictest0-21swapper/008:20:010
2741199181,2cyclictest23681-21expr08:00:130
2741199180,16cyclictest993-21dbus-daemon09:05:220
2741399172,15cyclictest28-21ksoftirqd/211:35:172
27413991716,1cyclictest28-21ksoftirqd/212:37:042
27413991716,1cyclictest28-21ksoftirqd/210:39:012
27413991715,1cyclictest271rcuc/211:00:122
27413991715,1cyclictest271rcuc/208:00:212
27413991715,1cyclictest271rcuc/207:55:192
27413991715,1cyclictest0-21swapper/212:28:582
27413991715,1cyclictest0-21swapper/207:50:132
27413991714,2cyclictest9226-21cat07:35:002
27413991714,2cyclictest3394-21apache_volume10:15:142
27413991714,2cyclictest32060-21apache_volume08:15:112
27413991714,2cyclictest14741-21/usr/sbin/munin08:40:132
27413991714,2cyclictest14149-21cat11:30:162
2741399171,1cyclictest2681-21cat09:15:182
2741399171,15cyclictest28-21ksoftirqd/211:40:162
2741399171,15cyclictest28-21ksoftirqd/210:30:122
2741399171,15cyclictest271rcuc/208:10:182
2741399171,15cyclictest0-21swapper/211:05:132
2741399171,15cyclictest0-21swapper/208:50:172
2741399170,2cyclictest769-21/usr/sbin/munin07:20:182
2741399170,16cyclictest993-21dbus-daemon12:30:182
2741399170,16cyclictest6522-21ntp_states11:15:192
2741399170,16cyclictest6265-21taskset12:15:112
2741399170,16cyclictest27973-21cstates07:10:132
2741399170,16cyclictest271rcuc/208:45:122
2741399170,16cyclictest23793-21ls10:50:142
2741399170,16cyclictest11691-21missed_timers11:25:162
2741399170,15cyclictest0-21swapper/210:30:012
2741299175,12cyclictest0-21swapper/109:17:041
27412991716,1cyclictest21-21ksoftirqd/109:32:471
27412991715,1cyclictest0-21swapper/111:29:161
27412991714,2cyclictest7549-21grep12:15:171
27412991714,2cyclictest3423-21nfsd411:10:191
27412991714,2cyclictest27216-21pzem09:00:191
27412991714,2cyclictest26700-21https10:00:021
27412991714,2cyclictest21889-21expr10:45:181
27412991714,2cyclictest19164-21ntp_states07:50:181
27412991714,2cyclictest18354-21basename12:35:161
27412991714,2cyclictest16662-21chrt10:35:221
27412991714,2cyclictest14824-21ls09:35:211
27412991714,2cyclictest12172-21/usr/sbin/munin10:30:121
27412991714,2cyclictest1100-21snmpd09:53:001
2741299171,15cyclictest32632-21apt-get12:05:131
2741299171,15cyclictest28528-21latency_hist11:00:001
2741299170,2cyclictest7152-21if_enp1s010:20:181
2741299170,2cyclictest4713-21netstat12:10:161
2741299170,2cyclictest32099-21sort11:05:151
2741299170,2cyclictest30438-21expr12:00:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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