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2025-11-08 - 05:26
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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 highest latencies:
System rackaslot8.osadl.org (updated Sat Nov 08, 2025 00:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
240942297264,21sleep20-21swapper/219:07:572
238992275242,20sleep30-21swapper/319:05:453
241232263229,22sleep10-21swapper/119:08:191
241842258226,21sleep00-21swapper/019:09:070
280282610,0sleep10-21swapper/100:22:451
261182580,0sleep00-21swapper/023:34:230
195142560,0sleep30-21swapper/300:15:423
135212530,0sleep20-21swapper/221:52:342
146252220,0sleep30-21swapper/322:37:203
124482210,0sleep00-21swapper/022:59:070
311702190,1sleep031159-21apt-config22:05:010
196242190,0sleep10-21swapper/100:15:481
81242180,0sleep00-21swapper/000:08:060
245162180,0sleep20-21swapper/223:32:412
155952180,0sleep10-21swapper/122:38:181
317672160,0sleep20-21swapper/221:43:212
317672160,0sleep20-21swapper/221:43:212
54552130,0sleep30-21swapper/323:18:443
104262120,0sleep310427-21expr21:00:133
2436799111,2cyclictest11736-21in:imuxsock21:29:120
2437999108,2cyclictest34-21ksoftirqd/300:03:353
2437999102,5cyclictest4575-21ssh22:30:173
2437599105,3cyclictest19982-21systemd-journal21:14:362
2436799105,3cyclictest17423-21turbostat20:05:010
243799992,4cyclictest0-21swapper/300:22:263
243759998,1cyclictest28-21ksoftirqd/221:45:022
243759994,3cyclictest19982-21systemd-journal20:44:342
243759993,4cyclictest28-21ksoftirqd/223:38:432
243759993,4cyclictest28-21ksoftirqd/223:38:422
243759993,4cyclictest28-21ksoftirqd/223:12:472
243759993,4cyclictest28-21ksoftirqd/222:32:322
243759993,4cyclictest28-21ksoftirqd/222:17:502
243759993,3cyclictest28-21ksoftirqd/223:45:012
243759993,1cyclictest141rcu_preempt23:58:592
243759992,5cyclictest28-21ksoftirqd/222:27:342
243759992,3cyclictest28-21ksoftirqd/221:31:332
243759992,2cyclictest508-21dbus-daemon19:49:552
243759991,5cyclictest28-21ksoftirqd/222:42:502
243759991,5cyclictest28-21ksoftirqd/222:10:042
243759990,5cyclictest0-21swapper/221:38:242
243719993,5cyclictest0-21swapper/121:20:521
243799986,1cyclictest0-21swapper/300:11:273
243799984,3cyclictest12639-21apt-get21:05:013
243799983,3cyclictest19982-21systemd-journal21:58:273
243799982,4cyclictest34-21ksoftirqd/322:14:323
243799982,4cyclictest0-21swapper/323:37:303
243799982,4cyclictest0-21swapper/323:37:303
243799982,4cyclictest0-21swapper/322:20:023
243799982,4cyclictest0-21swapper/322:03:393
243799982,4cyclictest0-21swapper/321:15:383
243799982,4cyclictest0-21swapper/320:47:053
243799982,4cyclictest0-21swapper/319:47:203
243799982,2cyclictest34-21ksoftirqd/323:05:183
243799981,5cyclictest34-21ksoftirqd/321:41:583
243799981,5cyclictest34-21ksoftirqd/321:41:583
243799981,5cyclictest34-21ksoftirqd/321:39:323
243799981,5cyclictest0-21swapper/322:47:303
243799981,5cyclictest0-21swapper/322:26:003
243799981,4cyclictest0-21swapper/322:58:263
243799981,4cyclictest0-21swapper/300:39:233
243799981,3cyclictest30806-21missed_timers19:20:183
243799981,2cyclictest29741-11brltty22:50:343
243799981,2cyclictest15167-21ssh21:31:433
243799981,2cyclictest0-21swapper/320:50:503
243799981,1cyclictest34-21ksoftirqd/322:45:013
243799980,5cyclictest6217-21ssh22:09:543
243799980,5cyclictest18424-21ssh22:17:433
243799980,5cyclictest14248-21ssh21:53:133
243799980,3cyclictest1031-21ssh21:22:153
243799980,2cyclictest34-21ksoftirqd/320:21:133
243799980,2cyclictest34-21ksoftirqd/320:12:523
243759987,1cyclictest28-21ksoftirqd/220:10:002
243759983,4cyclictest28-21ksoftirqd/200:20:372
243759983,3cyclictest141rcu_preempt23:25:382
243759983,1cyclictest141rcu_preempt23:20:462
243759983,1cyclictest141rcu_preempt00:28:002
243759983,1cyclictest141rcu_preempt00:01:242
243759982,4cyclictest31394-21timerwakeupswit19:20:222
243759982,4cyclictest28-21ksoftirqd/223:06:262
243759982,4cyclictest28-21ksoftirqd/222:51:412
243759982,4cyclictest28-21ksoftirqd/222:05:052
243759982,4cyclictest28-21ksoftirqd/221:20:192
243759982,4cyclictest28-21ksoftirqd/220:16:332
243759982,4cyclictest28-21ksoftirqd/200:36:052
243759982,4cyclictest28-21ksoftirqd/200:31:122
243759982,4cyclictest28-21ksoftirqd/200:15:452
243759982,4cyclictest28-21ksoftirqd/200:12:082
243759982,1cyclictest508-21dbus-daemon20:27:282
243759982,1cyclictest508-21dbus-daemon19:51:102
243759982,0cyclictest141rcu_preempt21:55:212
243759981,5cyclictest28-21ksoftirqd/222:00:042
243759981,5cyclictest28-21ksoftirqd/221:25:122
243759981,5cyclictest28-21ksoftirqd/221:17:382
243759981,5cyclictest28-21ksoftirqd/219:15:152
243759981,4cyclictest28-21ksoftirqd/223:52:322
243759981,4cyclictest28-21ksoftirqd/223:01:322
243759981,4cyclictest28-21ksoftirqd/222:48:102
243759981,4cyclictest28-21ksoftirqd/222:35:312
243759981,4cyclictest28-21ksoftirqd/222:20:182
243759981,4cyclictest0-21swapper/223:16:012
243759981,3cyclictest141rcu_preempt22:55:282
243759981,2cyclictest2932-21find23:40:192
243759980,4cyclictest0-21swapper/200:06:372
243719985,2cyclictest22-21ksoftirqd/120:15:001
243719984,3cyclictest19982-21systemd-journal23:49:261
243719984,2cyclictest19982-21systemd-journal20:03:161
243719983,3cyclictest19982-21systemd-journal20:29:081
243719980,7cyclictest7503-21ssh00:32:041
243679984,3cyclictest12-21ksoftirqd/023:55:140
243679984,1cyclictest0-21swapper/023:50:010
243679983,3cyclictest19982-21systemd-journal22:28:030
243679983,3cyclictest19982-21systemd-journal21:19:120
243679982,4cyclictest19982-21systemd-journal23:13:270
243679980,1cyclictest19982-21systemd-journal22:30:330
243799976,1cyclictest331rcuc/323:32:363
243799974,2cyclictest668-21runrttasks23:50:273
243799974,2cyclictest508-21dbus-daemon20:40:003
243799974,2cyclictest11736-21in:imuxsock20:18:423
243799973,3cyclictest31406-21memory00:25:173
243799973,3cyclictest14508-21cat23:25:163
243799973,3cyclictest0-21swapper/323:01:433
243799972,4cyclictest0-21swapper/323:11:473
243799972,4cyclictest0-21swapper/320:29:553
243799972,3cyclictest7661-21lldpd23:20:083
243799972,3cyclictest19982-21systemd-journal23:42:463
243799972,3cyclictest19982-21systemd-journal19:15:013
243799972,1cyclictest29741-11brltty19:42:003
243799972,1cyclictest29158-21grep20:30:133
243799971,4cyclictest34-21ksoftirqd/321:26:443
243799971,4cyclictest34-21ksoftirqd/320:05:043
243799971,4cyclictest34-21ksoftirqd/319:50:133
243799971,4cyclictest34-21ksoftirqd/319:35:143
243799971,4cyclictest34-21ksoftirqd/319:31:183
243799971,4cyclictest0-21swapper/323:55:053
243799971,4cyclictest0-21swapper/323:45:093
243799971,4cyclictest0-21swapper/321:45:203
243799971,4cyclictest0-21swapper/319:16:373
243799971,4cyclictest0-21swapper/300:07:493
243799971,3cyclictest0-21swapper/320:02:453
243799971,1cyclictest4803-21df00:30:143
243799970,5cyclictest34-21ksoftirqd/321:11:143
243759974,2cyclictest21153-21ntpq20:10:172
243759974,2cyclictest14903-21sshd19:56:582
243759973,1cyclictest141rcu_preempt21:05:182
243759972,3cyclictest28-21ksoftirqd/220:20:132
243759972,3cyclictest28-21ksoftirqd/219:40:162
243759972,3cyclictest28-21ksoftirqd/219:10:142
243759972,1cyclictest141rcu_preempt20:58:062
243759971,4cyclictest28-21ksoftirqd/221:00:472
243759971,4cyclictest28-21ksoftirqd/220:45:012
243759971,4cyclictest28-21ksoftirqd/220:32:052
243759971,4cyclictest28-21ksoftirqd/219:34:542
243759971,4cyclictest141rcu_preempt20:01:002
243759971,4cyclictest0-21swapper/219:25:162
243759970,4cyclictest0-21swapper/220:50:182
243719975,1cyclictest19982-21systemd-journal19:27:491
243719974,2cyclictest7970-21perf23:45:011
243719974,2cyclictest508-21dbus-daemon22:50:341
243719974,2cyclictest32300-21sshd00:25:261
243719973,3cyclictest6591-21ntpq20:50:151
243719973,3cyclictest508-21dbus-daemon22:08:261
243719973,3cyclictest19982-21systemd-journal21:54:151
243719973,3cyclictest19982-21systemd-journal20:00:011
243719973,2cyclictest19982-21systemd-journal23:24:471
243719973,2cyclictest19982-21systemd-journal21:02:301
243719973,1cyclictest0-21swapper/123:17:181
243719972,4cyclictest18487-21head20:05:161
243719972,3cyclictest7661-21lldpd20:45:461
243679975,1cyclictest3168-21dump-pmu-power00:05:000
243679974,2cyclictest508-21dbus-daemon20:31:130
243679974,2cyclictest21267-21grep20:10:180
243679974,2cyclictest19982-21systemd-journal22:05:560
243679974,2cyclictest11736-21in:imuxsock21:10:010
243679974,2cyclictest11736-21in:imuxsock00:39:530
243679973,3cyclictest7468-21hddtemp_smartct22:10:160
243679973,3cyclictest508-21dbus-daemon21:40:010
243679973,3cyclictest29741-11brltty20:09:070
243679973,3cyclictest19982-21systemd-journal23:22:390
243679973,3cyclictest19982-21systemd-journal23:07:390
243679973,3cyclictest19982-21systemd-journal20:40:000
243679973,3cyclictest19982-21systemd-journal00:24:260
243679973,3cyclictest14664-21cron23:50:010
243679973,3cyclictest14417-21cat23:00:130
243679973,3cyclictest12083-21cat00:10:210
243679973,3cyclictest0-21swapper/023:42:320
243679973,3cyclictest0-21swapper/000:16:170
243679973,2cyclictest19982-21systemd-journal22:40:010
243679973,1cyclictest0-21swapper/021:49:160
243679973,1cyclictest0-21swapper/021:32:480
243679972,3cyclictest19982-21systemd-journal22:15:070
243679971,2cyclictest19011-21ssh21:55:550
243799963,2cyclictest32379-21tr19:25:123
243799963,2cyclictest13695-21perl19:55:153
243799960,4cyclictest0-21swapper/320:55:123
243799960,1cyclictest0-21swapper/320:40:203
243759961,3cyclictest0-21swapper/220:35:172
243759960,4cyclictest0-21swapper/219:39:142
243719964,1cyclictest27299-21grep23:10:151
243719964,1cyclictest27243-21ntp_states19:15:021
243719963,2cyclictest7241-21diskstats22:55:131
243719963,2cyclictest668-21runrttasks19:39:421
243719963,2cyclictest30654-21snmpd19:54:491
243719963,2cyclictest2957-21ntpq19:30:171
243719963,2cyclictest26918-21sh22:45:281
243719963,2cyclictest20316-21ssh23:30:011
243719963,2cyclictest19239-21taskset23:29:101
243719963,2cyclictest12519-21head21:30:141
243719963,2cyclictest11736-21in:imuxsock20:59:101
243719962,3cyclictest5163-21grep00:05:191
243719962,3cyclictest32055-21cat20:35:181
243719962,3cyclictest30677-21cat19:20:171
243719962,3cyclictest30654-21snmpd21:09:481
243719962,3cyclictest30654-21snmpd20:30:141
243719962,3cyclictest30654-21snmpd19:11:091
243719962,3cyclictest30654-21snmpd00:03:171
243719962,3cyclictest23105-21cat20:15:161
243719962,3cyclictest2177-21awk20:40:181
243719962,3cyclictest21076-21seq22:41:571
243719962,3cyclictest21044-21sed23:05:161
243719962,3cyclictest19982-21systemd-journal21:41:191
243719962,3cyclictest19982-21systemd-journal21:41:191
243719962,3cyclictest15328-21cat23:50:141
243719962,3cyclictest11249-21cat00:10:161
243719962,3cyclictest10515-21expr00:35:111
243719962,3cyclictest0-21swapper/123:00:031
243719962,1cyclictest0-21swapper/123:36:581
243719962,1cyclictest0-21swapper/123:36:581
243719962,1cyclictest0-21swapper/122:22:201
243719962,1cyclictest0-21swapper/121:35:261
243719962,1cyclictest0-21swapper/121:25:341
243719962,1cyclictest0-21swapper/121:12:221
243719961,4cyclictest0-21swapper/122:25:531
243719961,3cyclictest19982-21systemd-journal23:55:141
243719961,3cyclictest19982-21systemd-journal22:01:461
243719960,6cyclictest0-21swapper/122:31:121
243719960,6cyclictest0-21swapper/122:16:021
243719960,6cyclictest0-21swapper/119:41:281
243719960,5cyclictest24520-21ssh21:15:491
243719960,3cyclictest8746-21ssh22:10:331
243719960,3cyclictest6459-21ssh21:47:501
243679964,1cyclictest10834-21irqstats21:00:150
243679963,2cyclictest668-21runrttasks21:07:060
243679963,2cyclictest32442-21cstates19:25:110
243679963,2cyclictest32318-21cpu22:50:140
243679963,2cyclictest30654-21snmpd23:25:490
243679963,2cyclictest28945-21sh23:35:230
243679963,2cyclictest28945-21sh23:35:230
243679963,2cyclictest25307-21grep19:10:180
243679963,2cyclictest11920-21ssh21:51:100
243679963,2cyclictest11736-21in:imuxsock20:46:140
243679963,2cyclictest11736-21in:imuxsock19:42:000
243679963,2cyclictest0-21swapper/022:45:210
243679962,3cyclictest31173-21head00:25:150
243679962,3cyclictest30902-21netstat19:20:180
243679962,3cyclictest30654-21snmpd21:40:050
243679962,3cyclictest30654-21snmpd21:40:050
243679962,3cyclictest30654-21snmpd20:55:090
243679962,3cyclictest30654-21snmpd20:54:060
243679962,3cyclictest30654-21snmpd20:25:050
243679962,3cyclictest30654-21snmpd19:57:290
243679962,3cyclictest30654-21snmpd19:47:490
243679962,3cyclictest30654-21snmpd19:16:150
243679962,3cyclictest25304-21hwlatdetect20:20:140
243679962,3cyclictest23268-21ls20:15:170
243679962,3cyclictest1883-21interrupts20:40:150
243679962,3cyclictest0-21swapper/022:43:050
243679962,3cyclictest0-21swapper/022:20:380
243679962,3cyclictest0-21swapper/021:20:210
243679962,2cyclictest19982-21systemd-journal23:16:260
243679961,4cyclictest4415-21apt-get00:30:130
243679961,3cyclictest19982-21systemd-journal19:35:190
17286260,0sleep10-21swapper/121:55:171
243719952,2cyclictest25285-21sh20:20:141
243719951,3cyclictest9444-21/usr/sbin/munin19:45:151
243679952,2cyclictest2126-21cat19:30:130
243679952,2cyclictest11241-21expr19:50:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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