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2026-05-11 - 06:20
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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 all highest latencies:
System rackaslot8.osadl.org (updated Mon May 11, 2026 00:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
221742297270,17sleep20-21swapper/219:09:282
221852295266,19sleep10-21swapper/119:09:351
222022267210,18sleep30-21swapper/319:09:493
220152257225,21sleep00-21swapper/019:07:250
210992620,0sleep20-21swapper/222:12:232
275372600,0sleep10-21swapper/123:52:391
92322580,0sleep10-21swapper/121:45:511
275972570,0sleep30-21swapper/322:15:573
204652570,0sleep30-21swapper/321:52:493
166172550,0sleep10-21swapper/122:10:091
24152470,0sleep10-21swapper/122:59:461
69582190,0sleep00-21swapper/022:04:310
98932180,0sleep30-21swapper/323:23:023
232772170,0sleep10-21swapper/100:28:561
108562170,0sleep20-21swapper/223:42:392
81232160,0sleep30-21swapper/300:39:263
2233099150,2cyclictest18721-21ssh23:47:193
2233099142,9cyclictest29638-21ssh22:36:283
2233099142,9cyclictest29638-21ssh22:36:283
2233099130,3cyclictest13079-21ssh21:48:453
310382120,0sleep00-21swapper/000:33:310
2233099123,8cyclictest0-21swapper/322:20:143
2233099122,6cyclictest17191-21taskset21:12:033
2233099120,3cyclictest16696-21ssh22:48:413
2233099120,1cyclictest0-21swapper/323:55:203
2233099112,5cyclictest5355-21sh00:18:083
2233099112,5cyclictest13003-21sh22:07:473
2233099112,5cyclictest10444-21sh21:27:313
2233099110,2cyclictest14710-21cut21:30:143
2233099110,1cyclictest29456-21apt-get20:35:013
2233099110,1cyclictest17472-21irqstats22:10:163
2231999119,1cyclictest12-21ksoftirqd/000:00:000
2233099103,6cyclictest17847-21cat22:30:133
2233099102,7cyclictest17171-21ssh22:29:583
2233099102,6cyclictest275-21systemd-journal19:22:263
2233099100,2cyclictest275-21systemd-journal19:20:003
2233099100,2cyclictest19401-21ssh00:06:523
2233099100,1cyclictest7142-21ssh00:00:043
2233099100,1cyclictest31864-21rm23:35:233
2233099100,1cyclictest275-21systemd-journal23:17:073
2233099100,1cyclictest25629-21ssh21:55:233
2233099100,1cyclictest12714-21diskmemload22:51:233
2233099100,1cyclictest0-21swapper/323:40:273
2233099100,1cyclictest0-21swapper/323:30:013
2232699100,9cyclictest14493-21timerwakeupswit23:25:172
223309993,5cyclictest658-21snmpd00:13:513
223309993,5cyclictest32129-21rm21:20:393
223309992,6cyclictest6919-21ntp_offset20:55:163
223309992,6cyclictest4790-21cat19:40:153
223309992,6cyclictest24552-21ssh21:16:173
223309992,6cyclictest16686-21taskset00:25:023
223309992,6cyclictest11791-21grep19:55:193
223309992,6cyclictest0-21swapper/323:04:063
223309992,2cyclictest574-21tr19:30:173
223309991,2cyclictest30944-21ssh21:40:113
223309991,2cyclictest3063-21if_err_enp4s022:40:133
223309991,1cyclictest0-21swapper/323:10:463
223309990,4cyclictest24847-21/usr/sbin/munin20:25:143
223309990,2cyclictest658-21snmpd20:51:553
223309990,2cyclictest275-21systemd-journal20:50:003
223309990,2cyclictest275-21systemd-journal20:50:003
223309990,2cyclictest23831-21systemd-udevd20:20:563
223309990,2cyclictest13388-21df20:00:133
223309990,1cyclictest9201-21irqstats21:00:163
223309990,1cyclictest4526-21ssh22:02:393
223309990,1cyclictest31819-21munin-run19:30:013
223309990,1cyclictest275-21systemd-journal20:15:013
223309990,1cyclictest26976-21apt-get20:30:113
223309990,1cyclictest251202sleep321:35:583
223309990,1cyclictest18937-21ssh23:09:363
223309990,1cyclictest12714-21diskmemload22:55:433
223309990,1cyclictest0-21swapper/323:54:033
223309990,1cyclictest0-21swapper/300:20:473
223269996,2cyclictest658-21snmpd00:07:542
223199998,1cyclictest12-21ksoftirqd/023:00:010
8645280,0sleep20-21swapper/222:24:472
223309980,3cyclictest32190-21grep20:40:133
223309980,3cyclictest2627-21/usr/sbin/munin19:35:163
223309980,3cyclictest13569-21ssh23:25:123
223309980,2cyclictest7272-21tr19:45:163
223309980,2cyclictest23023-21grep19:10:133
223309980,2cyclictest20482-21head20:15:153
223309980,2cyclictest10926-21cstates21:05:153
223309980,1cyclictest26231-21ntp_states00:30:163
223309980,1cyclictest0-21swapper/320:05:013
223269984,3cyclictest275-21systemd-journal22:55:272
223269983,3cyclictest275-21systemd-journal00:22:542
223249983,3cyclictest13689-21munin-run21:30:001
223249982,3cyclictest3853-21munin-run19:40:001
8007271,5sleep18028-21sh22:43:251
223309970,2cyclictest8690-21cut19:50:113
223269974,2cyclictest658-21snmpd23:18:052
223269974,2cyclictest504-21dbus-daemon19:35:002
223269973,3cyclictest7517-21users20:55:202
223269973,2cyclictest275-21systemd-journal21:38:252
223269973,1cyclictest0-21swapper/223:04:442
223269971,4cyclictest27898-21idleruntime-cro23:15:002
223269970,6cyclictest17542-21grep00:25:142
223249976,1cyclictest22-21ksoftirqd/100:00:001
223249975,1cyclictest146412sleep122:47:061
223249974,2cyclictest1873-21munin-plugin-st22:40:011
223249974,2cyclictest1873-21munin-plugin-st22:40:011
223249973,3cyclictest658-21snmpd23:19:591
223249973,3cyclictest658-21snmpd21:42:291
223249973,3cyclictest658-21snmpd19:48:531
223249973,3cyclictest275-21systemd-journal21:31:021
223249970,7cyclictest0-21swapper/121:00:151
223199976,1cyclictest12-21ksoftirqd/000:40:000
223199976,1cyclictest12-21ksoftirqd/000:00:000
223199975,1cyclictest12714-21diskmemload23:30:010
223199973,3cyclictest275-21systemd-journal20:47:360
223199973,3cyclictest275-21systemd-journal20:47:360
223199973,1cyclictest0-21swapper/022:24:310
223269966,0cyclictest0-21swapper/222:25:452
223269966,0cyclictest0-21swapper/221:34:082
223269963,2cyclictest8421-21awk00:00:172
223269963,2cyclictest7051-21sshd00:19:262
223269963,2cyclictest663-21runrttasks21:07:252
223269963,2cyclictest658-21snmpd23:51:072
223269963,2cyclictest504-21dbus-daemon22:52:232
223269963,2cyclictest275-21systemd-journal20:44:552
223269963,2cyclictest27095-21grep22:35:152
223269963,2cyclictest27095-21grep22:35:152
223269963,2cyclictest24566-21cat21:55:162
223269963,2cyclictest24076-21ssh23:30:512
223269963,2cyclictest21898-11brltty19:18:192
223269963,2cyclictest17731-21sort20:10:112
223269963,2cyclictest13561-21sh21:10:112
223269963,2cyclictest12473-21latency_hist23:25:002
223269963,2cyclictest11857-21sshd22:06:552
223269962,3cyclictest7531-21sensors_temp19:45:182
223269962,3cyclictest658-21snmpd22:45:072
223269962,3cyclictest658-21snmpd21:24:532
223269962,3cyclictest658-21snmpd21:04:142
223269962,3cyclictest658-21snmpd20:38:452
223269962,3cyclictest658-21snmpd20:28:062
223269962,3cyclictest658-21snmpd20:05:102
223269962,3cyclictest658-21snmpd19:56:502
223269962,3cyclictest658-21snmpd19:26:232
223269962,3cyclictest658-21snmpd19:10:582
223269962,3cyclictest504-21dbus-daemon21:55:012
223269962,3cyclictest275-21systemd-journal22:01:262
223269962,3cyclictest25793-21head00:30:132
223269962,3cyclictest19964-21awk20:15:122
223269962,3cyclictest1854-21expr20:45:132
223269962,3cyclictest1854-21expr20:45:132
223269962,3cyclictest1771-21cat00:35:152
223269962,1cyclictest0-21swapper/223:46:082
223269962,1cyclictest0-21swapper/223:09:042
223269960,6cyclictest0-21swapper/223:55:082
223269960,6cyclictest0-21swapper/221:47:082
223249966,0cyclictest0-21swapper/123:31:501
223249966,0cyclictest0-21swapper/123:25:121
223249966,0cyclictest0-21swapper/122:19:541
223249963,2cyclictest4607-21ssh22:21:421
223249963,2cyclictest31209-21ssh00:14:301
223249963,2cyclictest28220-21ssh21:19:041
223249963,2cyclictest275-21systemd-journal23:35:281
223249963,2cyclictest20072-21tr22:50:181
223249963,2cyclictest14485-21ssh00:23:451
223249963,2cyclictest13220-21ssh22:26:551
223249963,2cyclictest12074-21sh23:43:371
223249963,2cyclictest10378-21sshd19:53:281
223249962,3cyclictest8587-21tune2fs22:05:151
223249962,3cyclictest658-21snmpd23:45:481
223249962,3cyclictest658-21snmpd23:12:021
223249962,3cyclictest658-21snmpd22:33:131
223249962,3cyclictest658-21snmpd20:37:511
223249962,3cyclictest658-21snmpd20:24:031
223249962,3cyclictest658-21snmpd19:31:591
223249962,3cyclictest658-21snmpd19:15:011
223249962,3cyclictest6116-21date23:20:191
223249962,3cyclictest504-21dbus-daemon00:35:181
223249962,3cyclictest275-21systemd-journal20:16:161
223249962,3cyclictest25370-21ntpq20:25:171
223249962,3cyclictest1-21systemd22:00:191
223249962,3cyclictest10762-21cat19:55:131
223249962,1cyclictest0-21swapper/123:02:221
223249962,1cyclictest0-21swapper/100:16:251
223249961,4cyclictest24246-21head21:35:191
223249961,4cyclictest0-21swapper/121:20:111
223249961,3cyclictest28952-21idleruntime-cro20:35:001
223249960,6cyclictest0-21swapper/121:53:051
223249960,6cyclictest0-21swapper/121:11:411
223249960,6cyclictest0-21swapper/100:31:151
223249960,6cyclictest0-21swapper/100:01:541
223199966,0cyclictest0-21swapper/021:45:290
223199965,1cyclictest12-21ksoftirqd/022:50:010
223199965,1cyclictest12-21ksoftirqd/022:10:010
223199963,2cyclictest9761-21ssh22:05:210
223199963,2cyclictest7311-21sshd23:02:060
223199963,2cyclictest6956-21sh23:20:500
223199963,2cyclictest658-21snmpd21:12:340
223199963,2cyclictest29794-21rm21:58:350
223199963,2cyclictest28114-21mailstats20:30:190
223199963,2cyclictest275-21systemd-journal21:03:250
223199963,2cyclictest275-21systemd-journal20:56:250
223199963,2cyclictest23141-21rm00:09:420
223199963,2cyclictest22905-21irqstats20:20:140
223199963,2cyclictest20311-21sh21:52:420
223199963,2cyclictest14030-21ssh00:23:260
223199962,3cyclictest700-21cat00:15:160
223199962,3cyclictest658-21snmpd23:45:420
223199962,3cyclictest658-21snmpd23:36:380
223199962,3cyclictest658-21snmpd22:37:140
223199962,3cyclictest658-21snmpd22:37:140
223199962,3cyclictest658-21snmpd22:15:370
223199962,3cyclictest658-21snmpd21:33:180
223199962,3cyclictest658-21snmpd20:36:550
223199962,3cyclictest658-21snmpd20:01:410
223199962,3cyclictest658-21snmpd19:51:500
223199962,3cyclictest658-21snmpd19:30:170
223199962,3cyclictest658-21snmpd19:10:280
223199962,3cyclictest560-21gdbus20:30:000
223199962,3cyclictest504-21dbus-daemon23:16:580
223199962,3cyclictest4174-21cat19:40:130
223199962,3cyclictest30855-21ls21:20:160
223199962,3cyclictest275-21systemd-journal23:10:170
223199962,3cyclictest275-21systemd-journal22:42:030
223199962,3cyclictest275-21systemd-journal19:57:550
223199962,3cyclictest26054-21cat19:15:150
223199962,3cyclictest25069-21ntpq00:10:160
223199962,3cyclictest18654-21cut22:30:170
223199962,3cyclictest17660-21cat00:25:150
223199962,3cyclictest15592-21cat20:05:120
223199962,1cyclictest0-21swapper/021:35:180
223199960,6cyclictest0-21swapper/023:52:300
223199960,6cyclictest0-21swapper/023:26:030
20298260,0sleep10-21swapper/100:07:331
32126250,0sleep20-21swapper/223:35:352
223269953,1cyclictest24817-21sh22:15:012
223269952,2cyclictest9187-21cat19:50:132
223269952,2cyclictest7289-21grep21:25:182
223269952,2cyclictest658-21snmpd21:40:082
223269952,2cyclictest658-21snmpd20:00:022
223269952,2cyclictest3193-21cat22:40:142
223269952,2cyclictest28300-21cat19:20:152
223269952,2cyclictest27643-21cat20:30:142
223269952,2cyclictest24152-21cat00:10:122
223269952,2cyclictest23087-21grep20:20:152
223269952,2cyclictest2010-21cut19:35:132
223269951,3cyclictest658-21snmpd22:30:012
223269951,3cyclictest4761-21if_enp4s019:40:152
223269951,3cyclictest4427-21cat20:50:152
223269950,0cyclictest0-21swapper/221:15:002
223249953,1cyclictest663-21runrttasks20:51:391
223249952,2cyclictest658-21snmpd20:40:091
223249952,2cyclictest5976-21dpkg20:55:101
223249952,2cyclictest4786-21cat19:40:151
223249952,2cyclictest30523-21cat19:25:171
223249952,2cyclictest28301-21cat19:20:141
223249952,2cyclictest23469-21ntp_kernel_pll_19:10:171
223249952,2cyclictest1801-21expr20:45:141
223249952,2cyclictest1801-21expr20:45:141
223249952,2cyclictest13957-21ntpq20:00:181
223249952,2cyclictest12767-21awk23:05:191
223249952,2cyclictest12003-21cat21:05:211
223249951,3cyclictest23807-21/usr/sbin/munin21:55:131
223249951,3cyclictest15484-21gdbus20:05:011
223249950,4cyclictest17727-21/usr/sbin/munin20:10:111
223199953,1cyclictest28247-21idleruntime19:20:130
223199953,1cyclictest11643-21apt-get23:05:130
223199952,2cyclictest6992-21cat19:45:150
223199952,2cyclictest658-21snmpd20:50:130
223199952,2cyclictest5996-21rm23:40:090
223199952,2cyclictest5775-21ssh21:25:100
223199952,2cyclictest32101-21cat20:40:130
223199952,2cyclictest20018-21cpu20:15:120
223199952,2cyclictest18266-21gltestperf20:10:130
223199952,2cyclictest11396-21cat21:05:160
223199951,3cyclictest31405-21/usr/sbin/munin21:40:140
223199951,3cyclictest22798-21/usr/sbin/munin21:15:190
223199951,3cyclictest18894-21/usr/sbin/munin22:50:140
223199950,4cyclictest9512-21cat22:25:120
223199950,4cyclictest30802-21ntp_states19:25:180
223199950,2cyclictest1855-21/usr/sbin/munin19:35:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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