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2025-12-10 - 05:15
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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 Wed Dec 10, 2025 00:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
123402309281,17sleep20-21swapper/219:08:132
123262279214,22sleep30-21swapper/319:08:023
123382268235,21sleep00-21swapper/019:08:110
124652263229,23sleep10-21swapper/119:09:491
294702630,0sleep30-21swapper/321:48:473
293872610,0sleep20-21swapper/200:17:452
84022590,0sleep00-21swapper/022:18:110
44102590,0sleep10-21swapper/123:19:301
118642560,0sleep30-21swapper/300:28:593
213352550,0sleep20-21swapper/223:30:042
17652550,0sleep30-21swapper/300:20:313
301812540,0sleep30-21swapper/322:32:153
53742530,0sleep20-21swapper/222:37:352
302402170,0sleep10-21swapper/100:18:321
242862170,0sleep00-21swapper/000:14:390
150572170,0sleep00-21swapper/022:00:210
228222160,0sleep30-21swapper/300:36:563
131212160,0sleep00-21swapper/021:37:410
321172140,0sleep10-21swapper/100:20:011
210522130,0sleep30-21swapper/319:25:153
47602120,0sleep10-21swapper/121:54:011
170222110,1sleep10-21swapper/119:15:201
54772100,0chrt0-21swapper/300:00:163
1261799106,3cyclictest15774-21apt-get21:40:031
1261799106,3cyclictest13237-21sh23:45:021
1261799103,5cyclictest0-21swapper/100:00:121
27225290,0sleep20-21swapper/223:12:422
126309994,3cyclictest508-21dbus-daemon19:11:043
126219996,2cyclictest29512-21tr23:55:152
126179995,3cyclictest3923-21apt-get20:00:021
126179995,3cyclictest19982-21systemd-journal23:29:191
126179995,3cyclictest19982-21systemd-journal23:29:191
126179994,3cyclictest19982-21systemd-journal20:39:061
126179993,4cyclictest22-21ksoftirqd/121:23:021
126179992,4cyclictest0-21swapper/122:53:001
126179990,1cyclictest29741-11brltty23:01:471
126149994,3cyclictest19982-21systemd-journal23:23:040
8994280,0sleep30-21swapper/321:56:113
126309986,1cyclictest508-21dbus-daemon21:37:053
126309983,3cyclictest19982-21systemd-journal23:27:283
126309983,3cyclictest19982-21systemd-journal23:27:283
126309983,3cyclictest19982-21systemd-journal23:17:263
126219984,3cyclictest508-21dbus-daemon21:00:202
126219983,3cyclictest7661-21lldpd22:42:232
126219983,3cyclictest19982-21systemd-journal22:30:052
126219982,3cyclictest3382-21munin-plugin-st20:00:012
126219980,3cyclictest19982-21systemd-journal21:30:002
126179984,2cyclictest19982-21systemd-journal20:45:001
126179983,3cyclictest502-21systemd-logind23:14:181
126179983,3cyclictest19982-21systemd-journal20:58:171
126179982,4cyclictest22-21ksoftirqd/123:22:471
126179982,4cyclictest22-21ksoftirqd/123:08:171
126179982,4cyclictest0-21swapper/122:07:141
126179982,4cyclictest0-21swapper/121:10:271
126179982,4cyclictest0-21swapper/100:29:141
126179982,4cyclictest0-21swapper/100:11:331
126179982,3cyclictest22-21ksoftirqd/122:16:031
126179982,3cyclictest0-21swapper/122:43:401
126179982,3cyclictest0-21swapper/100:35:241
126179981,6cyclictest22-21ksoftirqd/121:27:321
126179981,5cyclictest0-21swapper/122:11:221
126179981,4cyclictest22-21ksoftirqd/122:21:271
126179980,2cyclictest8700-21apt-get21:35:131
126149984,3cyclictest508-21dbus-daemon20:32:000
126149984,3cyclictest30654-21snmpd22:28:120
126149984,3cyclictest19982-21systemd-journal21:34:400
126149984,3cyclictest19982-21systemd-journal21:24:400
126149984,2cyclictest19982-21systemd-journal23:39:450
126149983,3cyclictest19982-21systemd-journal20:16:470
7065270,0sleep20-21swapper/223:40:332
31054270,0sleep20-21swapper/222:11:082
13543270,4sleep228-21ksoftirqd/220:20:162
126309975,1cyclictest13056-21expr20:20:133
126309973,3cyclictest508-21dbus-daemon20:31:103
126309973,3cyclictest32011-21cron22:55:013
126309973,3cyclictest25305-21sed20:45:213
126309973,3cyclictest21340-21sshd00:11:393
126309973,3cyclictest1302-21fschecks_count21:05:143
126309973,3cyclictest0-21swapper/323:02:103
126309973,1cyclictest0-21swapper/322:26:423
126309973,1cyclictest0-21swapper/321:15:283
126309972,3cyclictest7661-21lldpd19:23:463
126309970,4cyclictest7215-21seq22:17:073
126219973,3cyclictest30654-21snmpd21:52:562
126219973,3cyclictest19982-21systemd-journal00:36:542
126219973,3cyclictest19982-21systemd-journal00:20:382
126219973,3cyclictest0-21swapper/223:24:542
126219973,1cyclictest0-21swapper/222:02:232
126219973,1cyclictest0-21swapper/200:07:202
126219972,4cyclictest28-21ksoftirqd/219:51:432
126219972,3cyclictest7661-21lldpd21:05:202
126219972,3cyclictest508-21dbus-daemon20:43:412
126219972,3cyclictest19982-21systemd-journal19:43:372
126219972,1cyclictest0-21swapper/221:14:072
126219971,3cyclictest20187-21grep19:25:012
126219970,2cyclictest23433-21ssh00:13:472
126219970,2cyclictest2207-21ssh23:37:592
126179975,2cyclictest891-21apt-get21:05:121
126179973,3cyclictest24641-21irqstats21:45:161
126179973,3cyclictest22236-21cat23:50:151
126179973,3cyclictest14117-21smartctl20:20:201
126179973,2cyclictest502-21systemd-logind23:30:341
126179972,4cyclictest24625-21cron19:35:011
126179972,4cyclictest15740-21which20:25:171
126179972,4cyclictest14219-21ps19:10:191
126179972,4cyclictest0-21swapper/120:50:151
126179972,3cyclictest22-21ksoftirqd/123:35:271
126179972,3cyclictest22-21ksoftirqd/121:55:311
126179972,3cyclictest0-21swapper/121:34:031
126179972,3cyclictest0-21swapper/121:15:371
126179972,1cyclictest141rcu_preempt20:05:131
126179971,4cyclictest22-21ksoftirqd/123:40:461
126179971,4cyclictest22-21ksoftirqd/122:36:411
126179971,4cyclictest22-21ksoftirqd/122:01:591
126179971,4cyclictest22-21ksoftirqd/120:34:431
126179971,4cyclictest0-21swapper/122:55:131
126179971,4cyclictest0-21swapper/122:32:171
126179971,4cyclictest0-21swapper/119:38:291
126179971,4cyclictest0-21swapper/119:38:291
126179971,1cyclictest29414-21apt-get23:55:151
126179971,1cyclictest21478-21ssh22:26:141
126179971,1cyclictest0-21swapper/100:07:221
126179970,4cyclictest627-21turbostat21:05:001
126179970,3cyclictest16629-21ssh22:45:121
126179970,1cyclictest211rcuc/100:31:581
126149974,2cyclictest508-21dbus-daemon21:13:180
126149973,3cyclictest508-21dbus-daemon22:35:010
126149973,3cyclictest508-21dbus-daemon20:25:000
126149973,3cyclictest502-21systemd-logind21:28:190
126149973,3cyclictest30654-21snmpd19:42:060
126149973,3cyclictest19982-21systemd-journal22:22:080
126149973,3cyclictest0-21swapper/023:59:260
126149973,3cyclictest0-21swapper/022:36:330
126149973,3cyclictest0-21swapper/000:34:470
126149973,1cyclictest0-21swapper/023:46:510
126149973,1cyclictest0-21swapper/022:51:450
126149973,1cyclictest0-21swapper/022:45:510
126149973,1cyclictest0-21swapper/022:43:150
126149972,3cyclictest21092-21cat22:05:140
126149972,3cyclictest19982-21systemd-journal23:16:480
126149972,2cyclictest624-21apt21:05:000
126149971,3cyclictest2386-21rm22:55:480
126149970,4cyclictest21049-21dump-pmu-power23:30:010
126149970,4cyclictest21049-21dump-pmu-power23:30:010
126309966,0cyclictest0-21swapper/322:10:183
126309963,2cyclictest51850irq/136-enp4s0-00:05:163
126309963,2cyclictest508-21dbus-daemon21:11:383
126309963,2cyclictest31694-21sh23:35:383
126309963,2cyclictest30654-21snmpd23:40:083
126309963,2cyclictest30654-21snmpd21:20:033
126309963,2cyclictest30654-21snmpd20:55:113
126309963,2cyclictest30654-21snmpd19:34:513
126309963,2cyclictest28152-21sh00:16:383
126309963,2cyclictest17059-21sh21:40:143
126309963,2cyclictest15754-21ssh22:00:403
126309962,3cyclictest9542-21ssh23:22:183
126309962,3cyclictest8657-21cat20:10:163
126309962,3cyclictest32293-21grep21:50:173
126309962,3cyclictest30654-21snmpd21:02:173
126309962,3cyclictest30654-21snmpd20:50:443
126309962,3cyclictest30654-21snmpd20:40:253
126309962,3cyclictest30654-21snmpd20:35:463
126309962,3cyclictest30654-21snmpd20:27:043
126309962,3cyclictest30654-21snmpd19:38:003
126309962,3cyclictest30654-21snmpd19:38:003
126309962,3cyclictest30544-21basename19:45:193
126309962,3cyclictest23363-21gltestperf23:10:173
126309962,3cyclictest21004-21basename22:05:133
126309962,3cyclictest2071-21expr21:30:163
126309962,3cyclictest15525-21which19:15:003
126309962,3cyclictest13563-21expr00:30:133
126309962,3cyclictest1-21systemd23:50:193
126309962,3cyclictest0-21swapper/322:35:013
126309962,1cyclictest0-21swapper/323:56:463
126309962,1cyclictest0-21swapper/322:55:223
126309962,1cyclictest0-21swapper/322:40:523
126309962,1cyclictest0-21swapper/322:20:593
126309961,3cyclictest19982-21systemd-journal23:45:103
126309961,3cyclictest19982-21systemd-journal19:40:163
126309961,2cyclictest28239-21ssh21:25:323
126309960,5cyclictest4901-21ntpq20:00:203
126309960,4cyclictest19982-21systemd-journal22:47:113
126219964,1cyclictest685-21tr22:55:172
126219963,2cyclictest502-21systemd-logind00:02:162
126219963,2cyclictest26902-21ssh23:53:142
126219963,2cyclictest24608-21ssh22:07:002
126219963,2cyclictest20366-21tail22:25:222
126219963,2cyclictest17276-21cat20:30:002
126219963,2cyclictest16816-21expr21:40:122
126219963,2cyclictest12047-21ssh21:36:462
126219962,3cyclictest4505-21grep20:00:162
126219962,3cyclictest31015-21cat23:15:162
126219962,3cyclictest30654-21snmpd22:20:382
126219962,3cyclictest30654-21snmpd21:45:402
126219962,3cyclictest30654-21snmpd19:45:122
126219962,3cyclictest30654-21snmpd19:32:302
126219962,3cyclictest30654-21snmpd00:30:512
126219962,3cyclictest25608-21cut19:35:172
126219962,3cyclictest25608-21cut19:35:172
126219962,3cyclictest21281-21sshd20:36:502
126219962,3cyclictest21217-21cat19:25:162
126219962,3cyclictest19982-21systemd-journal21:00:002
126219962,3cyclictest19982-21systemd-journal20:08:132
126219962,3cyclictest17632-21ntpq22:45:172
126219962,3cyclictest16863-21sshd23:46:412
126219962,3cyclictest15568-21expr23:05:142
126219962,3cyclictest12616-21cron20:20:002
126219962,3cyclictest11587-21expr21:15:142
126219962,3cyclictest0-21swapper/223:00:562
126219962,3cyclictest0-21swapper/221:30:012
126219962,1cyclictest0-21swapper/223:25:072
126219962,1cyclictest0-21swapper/223:25:072
126219962,1cyclictest0-21swapper/222:15:502
126219962,1cyclictest0-21swapper/200:25:082
126219961,4cyclictest0-21swapper/221:58:522
126219961,3cyclictest7661-21lldpd20:31:192
126219961,3cyclictest19982-21systemd-journal19:15:012
126219960,5cyclictest25267-21ls22:50:162
126219960,3cyclictest20020-21ntp_states21:20:172
126219960,2cyclictest14761-21sshd19:11:332
126179963,2cyclictest30654-21snmpd19:28:331
126179963,2cyclictest12143-21grep20:15:251
126179962,3cyclictest30654-21snmpd19:46:171
126179962,3cyclictest2372-21uname19:55:171
126179962,3cyclictest0-21swapper/119:50:121
126179961,4cyclictest25597-21grep20:45:221
126179961,3cyclictest22-21ksoftirqd/119:20:311
126179961,3cyclictest0-21swapper/119:40:131
126179961,1cyclictest22-21ksoftirqd/120:10:201
126149963,2cyclictest508-21dbus-daemon19:45:420
126149963,2cyclictest30654-21snmpd23:50:020
126149963,2cyclictest30654-21snmpd19:56:480
126149963,2cyclictest26987-21sed19:40:010
126149963,2cyclictest26987-21sed19:40:010
126149963,2cyclictest12578-21ssh21:15:200
126149963,2cyclictest1211-21ssh21:50:540
126149963,1cyclictest0-21swapper/023:40:020
126149962,3cyclictest5393-21cat00:00:160
126149962,3cyclictest508-21dbus-daemon21:45:070
126149962,3cyclictest4248-21ls20:00:160
126149962,3cyclictest32291-21cat19:50:160
126149962,3cyclictest30654-21snmpd23:08:130
126149962,3cyclictest30654-21snmpd21:05:500
126149962,3cyclictest30654-21snmpd20:36:580
126149962,3cyclictest30654-21snmpd19:22:320
126149962,3cyclictest30654-21snmpd00:36:350
126149962,3cyclictest28975-21tune2fs22:10:140
126149962,3cyclictest22761-21ssh23:10:140
126149962,3cyclictest19116-21gdbus00:15:060
126149962,3cyclictest13055-21packagekitd19:15:070
126149962,3cyclictest1-21systemd20:40:210
126149962,3cyclictest0-21swapper/023:31:130
126149962,3cyclictest0-21swapper/000:20:410
126149962,2cyclictest19982-21systemd-journal21:56:170
126149962,1cyclictest0-21swapper/000:27:340
126149962,1cyclictest0-21swapper/000:05:060
126149961,3cyclictest19982-21systemd-journal20:50:220
126149960,5cyclictest8387-21smartctl23:00:150
126149960,5cyclictest16523-21diskmemload21:40:120
126149960,2cyclictest8400-21/usr/sbin/munin20:10:190
126309953,1cyclictest668-21runrttasks20:15:083
126309953,1cyclictest2870-21diskmemload23:30:083
126309952,2cyclictest6361-21cut20:05:143
126309952,2cyclictest1969-21head19:55:143
126309951,3cyclictest32013-21grep19:50:143
126309951,3cyclictest0-21swapper/323:05:063
126219952,2cyclictest30654-21snmpd20:50:052
126219952,2cyclictest30654-21snmpd20:10:042
126219951,3cyclictest24119-21/usr/sbin/munin20:45:142
126149952,2cyclictest30654-21snmpd20:05:000
126149952,2cyclictest24397-21expr20:45:140
126149952,2cyclictest20792-21expr19:25:130
126149951,3cyclictest29217-21/usr/sbin/munin20:55:180
126149951,3cyclictest15139-21apt20:25:140
126149951,3cyclictest13066-21apt-get19:10:020
126149950,4cyclictest22640-21/usr/sbin/munin19:30:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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