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2026-01-12 - 03:23
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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 376 highest latencies:
System rackaslot8.osadl.org (updated Mon Jan 12, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
306622282247,22sleep20-21swapper/219:05:472
309762274244,19sleep00-21swapper/019:09:360
308202273243,19sleep10-21swapper/119:07:361
308852266235,21sleep30-21swapper/319:08:253
236012610,0sleep10-21swapper/100:07:011
197292600,0sleep20-21swapper/223:45:162
319942580,0sleep00-21swapper/021:15:510
78322560,0sleep20-21swapper/221:20:482
35892540,0sleep00-21swapper/023:55:150
234012530,0sleep023402-21latency_hist22:10:000
74202470,0sleep10-21swapper/121:40:171
310072180,0sleep30-21swapper/322:14:413
127752150,0sleep30-21swapper/323:21:193
7292140,0sleep20-21swapper/221:55:372
53712140,0sleep00-21swapper/023:17:000
97702130,0sleep20-21swapper/222:00:582
315212130,1sleep30-21swapper/323:52:313
289902100,0sleep00-21swapper/021:34:200
311249994,3cyclictest275-21systemd-journal22:21:390
6691280,0sleep10-21swapper/122:00:001
311369984,3cyclictest275-21systemd-journal21:14:463
311369983,3cyclictest275-21systemd-journal20:39:263
311339984,3cyclictest504-21dbus-daemon21:20:002
311339983,3cyclictest275-21systemd-journal22:10:002
311339982,3cyclictest28792-21munin-run00:30:012
311289984,3cyclictest658-21snmpd22:37:561
311249984,3cyclictest275-21systemd-journal23:15:020
311249984,3cyclictest275-21systemd-journal23:15:020
311249983,3cyclictest275-21systemd-journal20:59:550
15642280,0sleep10-21swapper/123:04:031
311369973,3cyclictest275-21systemd-journal21:05:463
311369973,3cyclictest275-21systemd-journal20:47:453
311369973,1cyclictest0-21swapper/300:04:313
311369970,6cyclictest8310-21ntpq22:00:193
311339975,2cyclictest0-21swapper/200:20:002
311339973,3cyclictest560-21gdbus00:01:212
311339973,3cyclictest20742-21ntpq00:05:162
311339971,3cyclictest14081-21munin-run21:45:012
311289974,2cyclictest7845-21seq00:17:061
311249974,2cyclictest19955-21sshd21:28:460
311249973,3cyclictest275-21systemd-journal23:40:000
20123270,0sleep20-21swapper/219:55:132
16052270,0sleep30-21swapper/321:25:463
14101270,0sleep10-21swapper/100:01:171
13039270,0sleep00-21swapper/021:44:140
311369966,0cyclictest0-21swapper/323:11:233
311369966,0cyclictest0-21swapper/323:11:233
311369966,0cyclictest0-21swapper/320:26:203
311369966,0cyclictest0-21swapper/319:44:003
311369966,0cyclictest0-21swapper/300:06:353
311369963,2cyclictest504-21dbus-daemon21:30:183
311369963,2cyclictest4073-21ssh23:16:003
311369963,2cyclictest29055-21cut20:15:123
311369963,2cyclictest28990-21ssh22:52:043
311369963,2cyclictest275-21systemd-journal20:10:463
311369963,2cyclictest26943-21sed23:30:143
311369963,2cyclictest26733-21ssh00:28:253
311369963,2cyclictest26387-21ssh21:51:463
311369963,2cyclictest20823-21diskmemload23:05:473
311369963,2cyclictest19584-21ssh21:47:533
311369963,2cyclictest18488-21seq23:45:033
311369963,1cyclictest0-21swapper/322:15:473
311369963,1cyclictest0-21swapper/321:15:383
311369962,3cyclictest9770-21sed23:00:143
311369962,3cyclictest8175-21expr22:20:123
311369962,3cyclictest7324-21ntpq21:40:173
311369962,3cyclictest658-21snmpd23:40:303
311369962,3cyclictest658-21snmpd23:29:203
311369962,3cyclictest658-21snmpd22:41:403
311369962,3cyclictest658-21snmpd21:36:283
311369962,3cyclictest658-21snmpd20:20:023
311369962,3cyclictest658-21snmpd20:05:033
311369962,3cyclictest658-21snmpd19:30:013
311369962,3cyclictest658-21snmpd00:36:403
311369962,3cyclictest658-21snmpd00:11:333
311369962,3cyclictest504-21dbus-daemon20:55:003
311369962,3cyclictest4838-21ntpq00:15:153
311369962,3cyclictest27559-21anacron22:31:283
311369962,3cyclictest0-21swapper/322:45:383
311369962,3cyclictest0-21swapper/321:22:363
311369962,3cyclictest0-21swapper/300:21:023
311369962,1cyclictest0-21swapper/322:28:113
311369962,1cyclictest0-21swapper/300:30:523
311369961,3cyclictest275-21systemd-journal21:02:483
311369960,6cyclictest0-21swapper/323:35:043
311369960,6cyclictest0-21swapper/322:55:173
311369960,4cyclictest201292cpuspeed_turbos19:55:123
311369960,2cyclictest32661-21/usr/sbin/munin22:35:183
311369960,2cyclictest15656-21cat22:05:133
311369960,0cyclictest0-21swapper/323:56:163
311369960,0cyclictest0-21swapper/321:58:093
311339966,0cyclictest0-21swapper/221:25:352
311339963,2cyclictest658-21snmpd23:16:112
311339963,2cyclictest504-21dbus-daemon22:50:572
311339963,2cyclictest504-21dbus-daemon00:13:092
311339963,2cyclictest32400-21cat22:15:142
311339963,2cyclictest29424-21ssh23:11:552
311339963,2cyclictest29424-21ssh23:11:552
311339963,2cyclictest275-21systemd-journal20:28:352
311339963,2cyclictest23030-21sh23:08:222
311339963,2cyclictest21588-21cron21:30:002
311339963,2cyclictest11677-21rm23:20:272
311339962,3cyclictest658-21snmpd23:57:242
311339962,3cyclictest658-21snmpd23:28:052
311339962,3cyclictest658-21snmpd22:55:072
311339962,3cyclictest658-21snmpd21:35:232
311339962,3cyclictest658-21snmpd19:45:342
311339962,3cyclictest658-21snmpd19:27:042
311339962,3cyclictest26987-21grep23:30:162
311339962,3cyclictest25241-21memory20:05:172
311339962,3cyclictest24240-21cut22:10:142
311339962,3cyclictest23213-21sed20:00:192
311339962,3cyclictest18262-21cat19:50:162
311339962,3cyclictest11343-21expr19:35:142
311339962,1cyclictest0-21swapper/223:38:502
311339962,1cyclictest0-21swapper/222:45:192
311339960,6cyclictest0-21swapper/223:54:372
311339960,6cyclictest0-21swapper/223:00:012
311339960,6cyclictest0-21swapper/222:35:432
311339960,6cyclictest0-21swapper/222:31:302
311339960,6cyclictest0-21swapper/200:37:562
311339960,5cyclictest9387-21memory22:40:162
311339960,5cyclictest29638-21cstates00:30:132
311289966,0cyclictest0-21swapper/122:31:371
311289966,0cyclictest0-21swapper/100:33:411
311289966,0cyclictest0-21swapper/100:11:561
311289965,1cyclictest20823-21diskmemload23:31:461
311289963,2cyclictest8486-21processes22:00:191
311289963,2cyclictest658-21snmpd20:50:121
311289963,2cyclictest504-21dbus-daemon19:30:011
311289963,2cyclictest501-21in:imuxsock19:56:291
311289963,2cyclictest30359-21cat21:15:151
311289963,2cyclictest25691-21ssh23:10:101
311289963,2cyclictest25691-21ssh23:10:101
311289963,2cyclictest24884-21ssh21:31:101
311289963,2cyclictest22-21ksoftirqd/119:40:121
311289963,2cyclictest17206-21tail21:00:121
311289963,2cyclictest1654-21sh23:54:291
311289963,2cyclictest14303-21rm00:20:261
311289963,2cyclictest11023-21rt-features20:45:181
311289963,1cyclictest0-21swapper/123:18:091
311289962,3cyclictest658-21snmpd23:59:481
311289962,3cyclictest658-21snmpd23:41:201
311289962,3cyclictest658-21snmpd23:26:151
311289962,3cyclictest658-21snmpd23:05:191
311289962,3cyclictest658-21snmpd21:29:381
311289962,3cyclictest658-21snmpd20:42:341
311289962,3cyclictest658-21snmpd20:26:351
311289962,3cyclictest658-21snmpd20:15:201
311289962,3cyclictest2998-21cat23:35:151
311289962,3cyclictest25643-21sensors_temp20:05:201
311289962,3cyclictest23567-21cut21:50:131
311289962,3cyclictest17140-21expr22:45:141
311289962,3cyclictest0-21swapper/120:36:321
311289962,1cyclictest0-21swapper/122:17:201
311289960,6cyclictest0-21swapper/123:22:081
311289960,6cyclictest0-21swapper/122:40:311
311289960,6cyclictest0-21swapper/122:10:481
311289960,3cyclictest30926-21rm21:35:151
311289960,2cyclictest703-21munin-run20:25:001
311249966,0cyclictest0-21swapper/023:45:040
311249966,0cyclictest0-21swapper/023:42:470
311249964,1cyclictest18601-21perf21:05:000
311249963,2cyclictest8011-21sh00:36:000
311249963,2cyclictest753-21ssh22:55:070
311249963,2cyclictest658-21snmpd20:25:330
311249963,2cyclictest6370-21sh21:59:590
311249963,2cyclictest501-21in:imuxsock20:18:100
311249963,2cyclictest29912-21sh00:10:300
311249963,2cyclictest29600-21ssh23:31:310
311249963,2cyclictest26469-21ssh21:51:490
311249963,2cyclictest25645-21ssh21:12:200
311249963,2cyclictest2396-21ssh21:37:240
311249963,2cyclictest20009-21rm23:06:020
311249963,2cyclictest18637-21ssh22:45:260
311249963,2cyclictest1742-21ssh00:32:460
311249963,2cyclictest13781-21ssh22:43:040
311249963,2cyclictest12680-21ssh22:03:140
311249963,2cyclictest11539-21ssh23:00:520
311249962,3cyclictest7209-21ntpq19:25:170
311249962,3cyclictest658-21snmpd21:45:230
311249962,3cyclictest658-21snmpd21:20:110
311249962,3cyclictest658-21snmpd21:05:510
311249962,3cyclictest658-21snmpd20:20:360
311249962,3cyclictest658-21snmpd20:07:440
311249962,3cyclictest658-21snmpd19:55:350
311249962,3cyclictest658-21snmpd19:52:320
311249962,3cyclictest658-21snmpd19:30:080
311249962,3cyclictest658-21snmpd19:21:400
311249962,3cyclictest658-21snmpd00:00:130
311249962,3cyclictest32189-21cat22:15:140
311249962,3cyclictest27326-21cat20:10:160
311249962,3cyclictest19421-21gdbus00:05:010
311249962,3cyclictest10865-21ntpq20:45:160
311249962,1cyclictest0-21swapper/023:22:540
311249962,1cyclictest0-21swapper/022:30:490
311249962,1cyclictest0-21swapper/022:25:160
311249960,6cyclictest0-21swapper/022:12:200
311369953,1cyclictest663-21runrttasks19:50:133
311369952,2cyclictest9384-21expr19:30:163
311369952,2cyclictest658-21snmpd20:30:113
311369952,2cyclictest501-21in:imuxsock20:41:563
311369952,2cyclictest4088-21cat19:20:143
311369952,2cyclictest32341-21cut19:10:183
311369952,2cyclictest15316-21sort19:45:113
311369952,2cyclictest1355-21if_enp4s019:15:023
311369952,2cyclictest10865-21tr19:35:133
311369950,4cyclictest22356-21cut20:00:133
311369950,4cyclictest14364-21apt-get20:55:133
311339953,1cyclictest143352sleep220:55:112
311339952,2cyclictest8850-21expr19:30:122
311339952,2cyclictest8336-21cat20:40:162
311339952,2cyclictest658-21snmpd20:45:132
311339952,2cyclictest658-21snmpd19:15:072
311339952,2cyclictest6019-21basename19:25:012
311339952,2cyclictest3768-21ssh00:15:092
311339952,2cyclictest3375-21cstates20:30:122
311339952,2cyclictest31538-21ls19:10:132
311339952,2cyclictest22801-21rm21:50:112
311339952,2cyclictest21340-21sh21:10:102
311339952,2cyclictest19485-21basename21:05:142
311339952,2cyclictest13854-21taskset20:52:022
311339952,2cyclictest13320-21expr19:40:112
311339952,2cyclictest11178-21cat23:40:152
311339952,2cyclictest0-21swapper/222:20:112
311339951,3cyclictest28862-21/usr/sbin/munin20:15:172
311339950,4cyclictest6056-21basename20:35:162
311339950,4cyclictest32101-21ntp_states20:20:162
311339950,4cyclictest17003-21diskstats21:00:122
311339950,4cyclictest14575-21ssh21:45:132
311339950,2cyclictest17467-21smart_sda22:25:202
311289953,1cyclictest3996-21grep20:30:161
311289953,1cyclictest15981-21ssh22:25:091
311289953,1cyclictest15840-21df22:05:121
311289952,2cyclictest7608-21ssh22:20:021
311289952,2cyclictest658-21snmpd19:15:221
311289952,2cyclictest658-21snmpd00:35:061
311289952,2cyclictest5339-21seq21:20:061
311289952,2cyclictest31992-21cat19:10:141
311289952,2cyclictest26863-21cat20:10:141
311289952,2cyclictest25001-21basename22:50:111
311289952,2cyclictest22423-21cstates20:00:131
311289952,2cyclictest19442-21sh21:05:131
311289952,2cyclictest14677-21cat20:55:131
311289952,1cyclictest0-21swapper/123:45:051
311289952,1cyclictest0-21swapper/122:55:111
311289951,3cyclictest9183-21cat19:30:141
311289951,3cyclictest658-21snmpd19:45:051
311289951,3cyclictest658-21snmpd19:39:281
311289951,3cyclictest20661-21apt-key00:25:011
311289951,3cyclictest14781-21cat21:45:131
311289950,4cyclictest0-21swapper/121:10:121
311289950,3cyclictest275-21systemd-journal19:20:121
311249953,1cyclictest1227-21ntp_offset19:15:010
311249952,2cyclictest8688-21cut20:40:190
311249952,2cyclictest658-21snmpd20:35:020
311249952,2cyclictest658-21snmpd00:25:000
311249952,2cyclictest3473-21expr20:30:130
311249952,2cyclictest23163-21ntp_offset20:00:170
311249952,2cyclictest18030-21ssh23:25:110
311249952,2cyclictest16148-21tr19:45:160
311249952,2cyclictest14697-21taskset19:41:470
311249952,2cyclictest12375-21ssh00:20:080
311249952,2cyclictest11408-21cat19:35:160
311249951,3cyclictest352-21/usr/sbin/munin22:35:150
311249951,3cyclictest32006-21cat19:10:140
311249951,3cyclictest26911-21/usr/sbin/munin23:50:130
311249951,3cyclictest25259-21cstates22:50:120
311249951,3cyclictest12815-21interrupts20:50:150
311249950,1cyclictest3824-21apt-get00:15:100
311339940,3cyclictest26635-21runrttasks20:10:082
311289941,2cyclictest658-21snmpd19:50:081
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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