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2026-03-26 - 00:44
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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 rackeslot8.osadl.org (updated Wed Mar 25, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1997655993027,1cyclictest0-21swapper/309:40:003
1997655992825,1cyclictest0-21swapper/310:40:123
1997655992717,8cyclictest2012653-21sleep07:20:013
1997655992522,1cyclictest0-21swapper/312:25:193
1997655992421,1cyclictest0-21swapper/309:40:243
1997655992421,1cyclictest0-21swapper/309:20:003
1997655992320,1cyclictest0-21swapper/311:00:003
1997655992219,1cyclictest0-21swapper/310:00:003
1997655992219,1cyclictest0-21swapper/307:55:203
1997655992219,1cyclictest0-21swapper/307:55:203
23325302200,10sleep22332534-21ssh11:04:272
1997655992017,1cyclictest0-21swapper/312:00:003
1997655992017,1cyclictest0-21swapper/310:40:013
199765599201,15cyclictest2277555-21taskset10:27:463
199765599201,15cyclictest2193158-21taskset09:34:503
199765599201,15cyclictest2089961-21taskset08:19:293
199765599198,7cyclictest21407402sleep308:55:223
1997655991917,1cyclictest0-21swapper/311:20:013
1997655991917,0cyclictest0-21swapper/310:00:163
1997655991916,1cyclictest0-21swapper/311:40:003
1997655991916,1cyclictest0-21swapper/310:32:213
1997655991916,1cyclictest0-21swapper/307:20:223
1997655991915,1cyclictest0-21swapper/307:50:273
199765599191,14cyclictest2338468-21taskset11:05:233
199765599191,14cyclictest2177716-21turbostat09:25:003
199765599191,13cyclictest2480470-21taskset12:40:003
23792912180,8sleep12379392-21cat11:35:001
23792912180,8sleep12379392-21cat11:35:001
199765599188,7cyclictest24095972sleep311:52:503
199765599188,7cyclictest22553452sleep310:15:123
199765599182,13cyclictest2096154-21taskset08:21:063
199765599182,12cyclictest2418510-21taskset12:00:113
1997655991815,1cyclictest0-21swapper/312:05:223
1997655991815,1cyclictest0-21swapper/308:50:013
1997655991815,1cyclictest0-21swapper/308:35:013
1997655991811,4cyclictest22530102chrt10:10:223
199765599181,13cyclictest2448377-21taskset12:17:193
199765599181,13cyclictest2328888-21taskset11:00:183
199765599181,13cyclictest2315869-21taskset10:50:593
199765599181,13cyclictest2268488-21taskset10:20:253
199765599181,13cyclictest2246172-21taskset10:06:373
199765599181,13cyclictest2215247-21taskset09:46:373
199765599181,13cyclictest2215247-21taskset09:46:363
199765599181,13cyclictest2178061-21chrt09:25:123
199765599181,13cyclictest2154168-21taskset09:06:043
199765599181,13cyclictest2134286-21taskset08:50:243
199765599181,13cyclictest2083320-21taskset08:11:403
199765599181,13cyclictest2019337-21taskset07:25:093
199765599181,12cyclictest1997809-21taskset07:10:023
199765599177,7cyclictest21480822sleep309:05:003
199765599172,12cyclictest2371816-21taskset11:30:083
199765599172,12cyclictest2371816-21taskset11:30:083
199765599172,12cyclictest2044645-21taskset07:41:293
1997655991714,1cyclictest0-21swapper/311:40:173
1997655991714,1cyclictest0-21swapper/308:10:003
1997655991714,1cyclictest0-21swapper/307:30:233
199765599171,13cyclictest2465103-21taskset12:30:103
199765599171,13cyclictest2440304-21taskset12:11:223
199765599171,13cyclictest2356403-21taskset11:20:103
199765599171,13cyclictest2222869-21taskset09:51:223
199765599171,13cyclictest2160756-21taskset09:10:333
199765599171,12cyclictest2449657-21chrt12:20:113
199765599171,12cyclictest2111602-21taskset08:35:173
199765599171,12cyclictest2102618-21taskset08:25:473
199765599171,12cyclictest2051152-21taskset07:46:263
199765599171,12cyclictest2038052-21taskset07:35:283
24626742160,4sleep02462720-21ntpq12:25:230
210972821612,2sleep22109855-21grep08:35:132
199765599161,12cyclictest2395140-21taskset11:45:083
199765599161,12cyclictest2346901-21taskset11:10:563
199765599161,12cyclictest2307981-21taskset10:45:383
199765599161,12cyclictest2070439-21taskset08:00:333
199765599161,11cyclictest2365502-21taskset11:25:153
199765599161,11cyclictest2121434-21taskset08:40:223
22938752150,3sleep12293882-21ssh10:39:561
21223142150,11sleep02122482-21cat08:45:010
24782012147,5sleep10-21swapper/112:35:221
21642122145,6sleep22165911-21cut09:15:182
129998140,4rtkit-daemon703-21mta-sts-daemon09:35:342
24496072131,9sleep02449613-21ssh12:20:100
23870592131,4sleep02387179-21cat11:40:010
22708662130,9sleep02270903-21apt-get10:25:120
21799102131,9sleep02181608-21kthreadcore09:25:180
21519842130,10sleep22148353-21/usr/sbin/munin09:05:202
21407832131,9sleep02140856-21/usr/sbin/munin08:55:230
129998130,8rtkit-daemon2237714-21/usr/sbin/munin10:00:251
24110542120,9sleep02411564-21cut11:55:160
23953592121,8sleep10-21swapper/111:45:151
20581502121,3sleep2222-21plymouthd07:55:122
20581502121,3sleep2222-21plymouthd07:55:122
20521202121,7sleep02052824-21irqrtprio07:50:170
20198022120,9sleep02020739-21irqstats07:25:150
20116352121,7sleep12011679-21ntp_kernel_pll_07:15:221
129998120,8rtkit-daemon876-21gmain07:13:570
129998120,6rtkit-daemon222-21plymouthd08:26:420
24653022110,8sleep22465346-21fschecks_count12:30:142
23564182111,7sleep02356562-21cpuspeed_turbos11:20:120
23228882110,8sleep02322933-21ntp_states10:55:220
22852552110,8sleep12285261-21ssh10:32:301
22692792110,4sleep00-21swapper/010:21:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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