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2026-08-17 - 08:21
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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 rackaslot8.osadl.org (updated Mon Aug 17, 2026 00:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
144012325296,19sleep20-21swapper/219:06:502
143372279248,21sleep10-21swapper/119:06:011
146182267236,20sleep00-21swapper/019:09:380
146272263231,21sleep30-21swapper/319:09:453
175552620,0sleep20-21swapper/222:32:242
114012620,0sleep00-21swapper/023:25:240
254062600,0sleep20-21swapper/220:40:202
43182570,0sleep10-21swapper/123:02:301
176682560,0sleep00-21swapper/021:55:020
307162540,0sleep00-21swapper/022:59:210
117052220,0sleep20-21swapper/221:51:002
167382210,0sleep10-21swapper/123:29:131
287772170,0sleep328778-21ssh22:20:163
210982150,0sleep30-21swapper/323:50:213
90812140,0sleep30-21swapper/322:45:503
97072130,0sleep00-21swapper/000:22:210
193682130,0sleep10-21swapper/119:15:191
47062120,0sleep00-21swapper/000:19:570
115262120,0sleep20-21swapper/200:23:442
1477799119,2cyclictest28-21ksoftirqd/200:00:002
1478399109,1cyclictest34-21ksoftirqd/319:15:023
651290,0sleep00-21swapper/023:57:550
23038290,0sleep20-21swapper/223:32:382
26921280,0sleep10-21swapper/122:56:301
22348280,0sleep00-21swapper/020:35:130
19458280,0sleep10-21swapper/121:55:191
147839987,1cyclictest34-21ksoftirqd/321:40:003
147779986,1cyclictest28-21ksoftirqd/219:25:012
147729980,0cyclictest0-21swapper/122:25:211
12285280,0sleep30-21swapper/323:07:093
32264270,0chrt0-21swapper/220:55:212
24981270,0sleep20-21swapper/200:12:102
147839976,1cyclictest34-21ksoftirqd/300:40:003
147839973,3cyclictest30727-21snmpd22:37:123
147839973,3cyclictest30727-21snmpd19:51:313
147839973,3cyclictest30727-21snmpd19:31:063
147839973,3cyclictest24664-21sshd19:27:283
147839972,4cyclictest30727-21snmpd23:12:283
147779974,2cyclictest275-21systemd-journal23:21:192
147779973,3cyclictest30727-21snmpd23:09:522
147779973,3cyclictest30727-21snmpd22:05:182
147779973,2cyclictest2425-21chrt21:02:182
147729975,1cyclictest22-21ksoftirqd/121:40:001
147729974,2cyclictest28544-11brltty22:10:121
147729973,3cyclictest504-21dbus-daemon00:05:001
147729973,3cyclictest491-21systemd-logind22:31:281
147729971,5cyclictest0-21swapper/122:10:011
147729970,6cyclictest21811-21ls21:20:001
147729970,3cyclictest211032timerwakeupswit23:50:211
147689973,3cyclictest6443-21awk20:00:150
147689973,3cyclictest30727-21snmpd20:10:050
147689973,3cyclictest25921-11brltty21:12:050
147689972,3cyclictest21656-21turbostat00:30:000
147689970,5cyclictest275-21systemd-journal00:38:450
147839966,0cyclictest0-21swapper/321:41:173
147839966,0cyclictest0-21swapper/321:22:243
147839965,1cyclictest34-21ksoftirqd/322:30:013
147839964,1cyclictest4879-21diskmemload00:15:163
147839963,2cyclictest6983-21awk21:30:143
147839963,2cyclictest674-21lldpd23:22:303
147839963,2cyclictest6094-21ssh00:20:173
147839963,2cyclictest6039-21ssh22:06:393
147839963,2cyclictest504-21dbus-daemon22:50:193
147839963,2cyclictest4098-21sh21:46:393
147839963,2cyclictest30727-21snmpd23:31:353
147839963,2cyclictest30727-21snmpd22:40:183
147839963,2cyclictest30727-21snmpd21:27:343
147839963,2cyclictest30727-21snmpd00:31:033
147839963,2cyclictest30727-21snmpd00:25:153
147839963,2cyclictest25738-21grep20:40:213
147839963,2cyclictest12306-21wc22:10:193
147839963,1cyclictest0-21swapper/323:01:163
147839963,1cyclictest0-21swapper/322:03:453
147839963,1cyclictest0-21swapper/300:08:233
147839962,3cyclictest31111-21expr20:55:143
147839962,3cyclictest30727-21snmpd22:55:373
147839962,3cyclictest30727-21snmpd22:31:123
147839962,3cyclictest30727-21snmpd21:15:453
147839962,3cyclictest30727-21snmpd21:12:483
147839962,3cyclictest30727-21snmpd21:01:273
147839962,3cyclictest30727-21snmpd20:27:263
147839962,3cyclictest30727-21snmpd19:37:073
147839962,3cyclictest30727-21snmpd19:20:123
147839962,3cyclictest30137-21expr19:40:153
147839962,3cyclictest26469-21sensors_temp23:15:213
147839962,3cyclictest20273-21cat22:15:163
147839962,3cyclictest11813-21cat23:45:133
147839962,3cyclictest10205-21expr23:25:173
147839962,3cyclictest0-21swapper/323:35:073
147839962,2cyclictest275-21systemd-journal20:40:013
147839962,2cyclictest23313-1kworker/u9:221:52:553
147839962,1cyclictest0-21swapper/323:43:373
147839961,4cyclictest30727-21snmpd00:11:593
147839961,3cyclictest275-21systemd-journal19:45:343
147839960,5cyclictest1-21systemd00:00:193
147839960,0cyclictest0-21swapper/323:55:393
147779966,0cyclictest4879-21diskmemload22:50:522
147779966,0cyclictest0-21swapper/221:23:462
147779964,1cyclictest25729-21hddtemp_smartct19:30:142
147779963,2cyclictest7149-21ssh22:26:032
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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