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2026-04-14 - 19:32
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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 Tue Apr 14, 2026 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
295132323293,20sleep20-21swapper/207:05:462
297672282256,17sleep10-21swapper/107:08:551
278922265238,18sleep30-21swapper/307:05:113
295542264235,19sleep00-21swapper/007:06:170
254312650,0sleep10-21swapper/109:32:321
78342610,1sleep20-21swapper/210:40:212
19482600,0sleep30-21swapper/310:56:523
246642590,0sleep20-21swapper/211:50:172
187382580,0sleep30-21swapper/309:28:463
276542570,1sleep30-21swapper/312:11:443
85772550,0sleep10-21swapper/111:20:241
202502550,0sleep10-21swapper/111:28:131
288812510,0sleep30-21swapper/309:35:033
189412440,0sleep20-21swapper/210:47:342
282112190,0sleep20-21swapper/210:53:272
267552190,0sleep10-21swapper/110:52:181
13092190,1sleep30-21swapper/307:15:133
13452170,0sleep20-21swapper/210:56:232
33672160,0sleep30-21swapper/308:30:213
299609993,3cyclictest14145-21sh11:05:001
299669984,2cyclictest275-21systemd-journal10:01:383
299669983,2cyclictest744350systemd-tmpfile12:20:003
299669980,7cyclictest13212-21ssh10:24:453
299609987,1cyclictest22-21ksoftirqd/110:50:011
299559984,1cyclictest21163-21awk09:50:010
27609280,0sleep00-21swapper/011:52:070
6096270,0sleep00-21swapper/010:40:070
299669974,2cyclictest275-21systemd-journal11:54:573
299669973,3cyclictest658-21snmpd11:58:593
299669973,3cyclictest26207-21ntpq08:10:183
299669973,3cyclictest1-21systemd12:25:183
299669973,2cyclictest275-21systemd-journal09:49:533
299669973,1cyclictest0-21swapper/311:43:123
299629975,1cyclictest7062-21cron07:30:002
299609973,3cyclictest674-21lldpd12:18:531
299609973,3cyclictest658-21snmpd09:39:281
299609973,3cyclictest658-21snmpd09:09:391
299609973,3cyclictest21781-21ntpq08:00:171
299609972,3cyclictest7076-21grep07:30:001
299609972,3cyclictest275-21systemd-journal12:37:171
299609972,3cyclictest25070-21uname12:10:151
299559973,3cyclictest22588-21awk10:50:120
299559973,1cyclictest21513-21munin-run10:10:010
21346270,0sleep00-21swapper/008:00:140
299669966,0cyclictest0-21swapper/310:45:123
299669966,0cyclictest0-21swapper/310:30:473
299669963,3cyclictest6570-21kworker/3:011:34:233
299669963,2cyclictest658-21snmpd12:00:083
299669963,2cyclictest658-21snmpd08:15:593
299669963,2cyclictest658-21snmpd08:05:353
299669963,2cyclictest30881-21ntpq09:55:183
299669963,2cyclictest26803-21sh10:52:203
299669963,2cyclictest24793-21ssh10:11:123
299669963,2cyclictest16798-21sh11:25:283
299669963,2cyclictest16126-21basename07:50:013
299669963,2cyclictest13968-21sshd11:24:403
299669963,2cyclictest12748-21sh12:22:443
299669963,1cyclictest0-21swapper/309:54:403
299669962,3cyclictest658-21snmpd12:36:393
299669962,3cyclictest658-21snmpd12:30:333
299669962,3cyclictest658-21snmpd12:30:333
299669962,3cyclictest658-21snmpd11:47:593
299669962,3cyclictest658-21snmpd11:15:013
299669962,3cyclictest658-21snmpd11:06:103
299669962,3cyclictest658-21snmpd09:21:263
299669962,3cyclictest658-21snmpd09:13:303
299669962,3cyclictest658-21snmpd09:00:423
299669962,3cyclictest658-21snmpd08:36:033
299669962,3cyclictest658-21snmpd08:02:203
299669962,3cyclictest658-21snmpd07:25:283
299669962,3cyclictest275-21systemd-journal08:51:003
299669962,3cyclictest275-21systemd-journal07:57:093
299669962,3cyclictest21543-21cat09:30:133
299669962,3cyclictest16576-21expr07:50:123
299669962,3cyclictest14465-21df10:25:143
299669962,1cyclictest0-21swapper/310:35:313
299669961,4cyclictest0-21swapper/312:05:173
299669961,4cyclictest0-21swapper/309:40:003
299669961,3cyclictest275-21systemd-journal07:39:023
299669961,2cyclictest31244-21rm10:15:183
299669960,6cyclictest0-21swapper/310:08:163
299669960,6cyclictest0-21swapper/309:16:033
299629966,0cyclictest0-21swapper/211:43:242
299629964,1cyclictest0-21swapper/211:20:142
299629963,2cyclictest9526-21ssh09:42:202
299629963,2cyclictest7983-21df12:00:122
299629963,2cyclictest7392-21cat07:30:132
299629963,2cyclictest275-21systemd-journal11:33:262
299629963,2cyclictest275-21systemd-journal10:35:492
299629963,2cyclictest275-21systemd-journal08:33:002
299629963,2cyclictest26177-21sh10:32:052
299629963,2cyclictest22654-21ssh09:30:242
299629963,2cyclictest17749-21cron09:05:002
299629963,2cyclictest14467-11brltty11:25:552
299629963,2cyclictest11935-21ssh12:22:072
299629963,1cyclictest0-21swapper/209:11:192
299629962,3cyclictest658-21snmpd12:19:422
299629962,3cyclictest658-21snmpd11:57:412
299629962,3cyclictest658-21snmpd11:13:132
299629962,3cyclictest658-21snmpd11:05:312
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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