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2026-05-01 - 05:32
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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 Fri May 01, 2026 00:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26932292226,21sleep10-21swapper/119:07:541
27282283252,21sleep30-21swapper/319:08:203
27702275244,20sleep20-21swapper/219:08:522
25422270240,19sleep00-21swapper/019:06:170
88182970,0sleep00-21swapper/021:19:460
155322610,0sleep00-21swapper/000:19:500
83882590,0sleep10-21swapper/120:30:181
81042580,0sleep00-21swapper/022:56:450
86172560,0sleep10-21swapper/100:15:181
315132550,0sleep00-21swapper/022:31:430
255192550,0sleep30-21swapper/322:48:043
122792540,0sleep10-21swapper/122:40:131
50322530,0sleep20-21swapper/200:31:332
234392180,0sleep30-21swapper/321:47:373
126912180,0sleep00-21swapper/022:20:180
126912180,0sleep00-21swapper/022:20:180
88472150,0sleep20-21swapper/222:57:202
177342140,0sleep30-21swapper/322:43:223
151942140,0sleep30-21swapper/319:35:123
101472140,0sleep210154-21gltestperf20:35:122
29589997,1cyclictest12-21ksoftirqd/000:00:000
29709980,7cyclictest15876-21ntp_states00:00:183
29679987,1cyclictest28-21ksoftirqd/200:05:012
29679983,3cyclictest674-21lldpd23:12:192
29629983,3cyclictest26156-21munin-run20:00:011
29589986,1cyclictest12-21ksoftirqd/000:10:000
29589986,1cyclictest121ksoftirqd/020:40:010
29589982,1cyclictest141rcu_preempt19:30:120
5589270,0sleep30-21swapper/321:56:113
29709974,2cyclictest22590-21xargs23:05:223
29709973,3cyclictest29142-11brltty23:30:123
29709973,3cyclictest275-21systemd-journal23:29:473
29709972,2cyclictest275-21systemd-journal00:07:563
29709970,6cyclictest20610-21cron23:05:013
29679975,1cyclictest28-21ksoftirqd/220:20:012
29679973,3cyclictest504-21dbus-daemon00:20:012
29679973,3cyclictest275-21systemd-journal20:12:122
29629973,3cyclictest658-21snmpd21:30:121
29629973,3cyclictest275-21systemd-journal23:56:291
29629973,3cyclictest275-21systemd-journal20:26:211
29629973,3cyclictest275-21systemd-journal19:20:241
29629971,5cyclictest18790-21munin-run22:05:011
29589976,1cyclictest12-21ksoftirqd/023:55:000
29589976,1cyclictest121ksoftirqd/023:20:010
29589974,3cyclictest16885-21cron19:40:010
29589974,2cyclictest275-21systemd-journal19:56:460
29589973,3cyclictest658-21snmpd21:10:080
29589973,3cyclictest275-21systemd-journal22:42:390
29589973,1cyclictest141rcu_preempt19:15:010
29589972,3cyclictest275-21systemd-journal22:45:000
29589970,4cyclictest4047-21ls22:55:000
29589970,1cyclictest0-21swapper/023:28:200
29589970,1cyclictest0-21swapper/023:20:290
29589970,1cyclictest0-21swapper/022:29:560
18008270,0sleep10-21swapper/123:02:581
31805260,0sleep00-21swapper/023:10:550
29709965,1cyclictest24912-21diskmemload00:15:123
29709964,2cyclictest501-21in:imuxsock21:30:003
29709963,2cyclictest7096-21sh21:18:283
29709963,2cyclictest658-21snmpd23:40:543
29709963,2cyclictest658-21snmpd22:29:583
29709963,2cyclictest600-21rm23:51:003
29709963,2cyclictest4692-21sh21:35:523
29709963,2cyclictest31360-21sh21:13:353
29709963,2cyclictest28314-21memory22:10:173
29709963,2cyclictest275-21systemd-journal20:43:273
29709963,2cyclictest275-21systemd-journal00:10:143
29709963,2cyclictest275-21systemd-journal00:10:143
29709963,2cyclictest25833-21ssh23:46:463
29709963,2cyclictest22170-21sh22:06:173
29709963,2cyclictest21396-21sshd19:47:043
29709963,2cyclictest20914-21ssh00:22:233
29709963,2cyclictest15615-21sh21:42:543
29709962,3cyclictest658-21snmpd23:18:423
29709962,3cyclictest658-21snmpd22:02:053
29709962,3cyclictest658-21snmpd21:51:203
29709962,3cyclictest658-21snmpd20:31:143
29709962,3cyclictest658-21snmpd20:18:173
29709962,3cyclictest658-21snmpd20:05:043
29709962,3cyclictest658-21snmpd20:02:483
29709962,3cyclictest6107-21expr23:35:133
29709962,3cyclictest4706-21memory22:35:153
29709962,3cyclictest275-21systemd-journal20:27:123
29709962,3cyclictest1-21systemd21:30:053
29709962,2cyclictest674-21lldpd22:22:453
29709962,2cyclictest674-21lldpd22:22:453
29709962,1cyclictest0-21swapper/322:52:053
29709960,6cyclictest0-21swapper/300:38:463
29709960,6cyclictest0-21swapper/300:25:193
29709960,5cyclictest5597-21sed19:15:013
29709960,3cyclictest29358-21ssh23:10:123
29709960,2cyclictest14013-21/usr/sbin/munin20:45:183
29709960,0cyclictest0-21swapper/321:20:193
29679966,0cyclictest0-21swapper/222:31:102
29679966,0cyclictest0-21swapper/222:02:472
29679966,0cyclictest0-21swapper/221:46:262
29679966,0cyclictest0-21swapper/219:10:242
29679965,1cyclictest17283-21ssh23:41:322
29679963,2cyclictest658-21snmpd21:26:442
29679963,2cyclictest5810-21grep23:35:132
29679963,2cyclictest4354-21ssh22:15:172
29679963,2cyclictest3831-21ssh22:54:512
29679963,2cyclictest28057-21cut22:10:152
29679963,2cyclictest275-21systemd-journal23:21:222
29679963,2cyclictest275-21systemd-journal21:30:462
29679963,2cyclictest21950-21ssh00:23:052
29679963,2cyclictest19285-21ls20:55:172
29679963,2cyclictest15671-21ssh00:37:522
29679963,2cyclictest12761-21ssh23:00:092
29679963,1cyclictest0-21swapper/221:20:152
29679962,3cyclictest7863-21fw_packets20:30:142
29679962,3cyclictest658-21snmpd23:51:492
29679962,3cyclictest658-21snmpd22:06:442
29679962,3cyclictest658-21snmpd21:40:512
29679962,3cyclictest658-21snmpd21:09:242
29679962,3cyclictest658-21snmpd20:40:162
29679962,3cyclictest658-21snmpd20:00:162
29679962,3cyclictest658-21snmpd19:55:072
29679962,3cyclictest658-21snmpd19:46:212
29679962,3cyclictest658-21snmpd19:41:422
29679962,3cyclictest658-21snmpd19:16:122
29679962,3cyclictest658-21snmpd00:27:162
29679962,3cyclictest658-21snmpd00:10:402
29679962,3cyclictest658-21snmpd00:10:402
29679962,3cyclictest658-21snmpd00:06:432
29679962,3cyclictest5805-21cat20:25:132
29679962,3cyclictest5373-21cat23:15:122
29679962,3cyclictest3573-21cat20:20:132
29679962,3cyclictest28951-21cat20:05:122
29679962,3cyclictest275-21systemd-journal21:55:212
29679962,3cyclictest21808-21hostname23:05:172
29679962,3cyclictest15604-21cat19:35:132
29679962,3cyclictest13421-21sensors_temp22:40:202
29679962,1cyclictest0-21swapper/222:23:542
29679962,1cyclictest0-21swapper/222:23:542
29679961,3cyclictest25343-21rm23:26:512
29679960,6cyclictest0-21swapper/222:45:222
29629966,0cyclictest0-21swapper/123:33:481
29629964,1cyclictest504-21dbus-daemon23:35:131
29629963,2cyclictest658-21snmpd22:18:461
29629963,2cyclictest658-21snmpd21:45:141
29629963,2cyclictest32593-21rm22:32:331
29629963,2cyclictest31968-21rm00:28:561
29629963,2cyclictest29308-21ssh22:10:271
29629963,2cyclictest25165-21rm23:46:151
29629963,2cyclictest22691-21sh00:04:471
29629963,2cyclictest1809-21tune2fs21:15:141
29629963,2cyclictest12058-21ssh23:19:201
29629963,1cyclictest0-21swapper/123:53:421
29629963,1cyclictest0-21swapper/121:40:441
29629962,3cyclictest671-21ntpd21:20:161
29629962,3cyclictest658-21snmpd22:57:081
29629962,3cyclictest658-21snmpd22:54:021
29629962,3cyclictest658-21snmpd22:35:181
29629962,3cyclictest658-21snmpd20:53:171
29629962,3cyclictest658-21snmpd20:21:401
29629962,3cyclictest658-21snmpd20:16:071
29629962,3cyclictest658-21snmpd19:51:341
29629962,3cyclictest658-21snmpd19:48:251
29629962,3cyclictest658-21snmpd19:36:111
29629962,3cyclictest658-21snmpd19:31:561
29629962,3cyclictest658-21snmpd00:31:321
29629962,3cyclictest29404-21cat20:05:151
29629962,3cyclictest19772-21awk22:25:111
29629962,3cyclictest19663-11brltty20:00:061
29629962,3cyclictest15154-21ntpq23:40:201
29629962,1cyclictest0-21swapper/121:50:201
29629960,6cyclictest0-21swapper/123:27:331
29629960,6cyclictest0-21swapper/122:45:051
29629960,6cyclictest0-21swapper/100:14:341
29629960,6cyclictest0-21swapper/100:14:341
29629960,5cyclictest28870-21idleruntime-cro23:10:001
29629960,1cyclictest0-21swapper/123:25:011
29629960,0cyclictest0-21swapper/121:59:001
29629960,0cyclictest0-21swapper/121:25:471
29589966,0cyclictest0-21swapper/021:45:440
29589965,1cyclictest12-21ksoftirqd/019:15:000
29589964,1cyclictest12-21ksoftirqd/022:00:120
29589963,2cyclictest658-21snmpd19:29:470
29589963,2cyclictest27330-21rm00:25:390
29589963,2cyclictest23330-21diskstats21:05:140
29589963,2cyclictest20815-21ssh21:26:030
29589963,2cyclictest18688-21ssh23:42:380
29589963,2cyclictest18270-21rm00:20:300
29589963,2cyclictest1401-21sh00:30:060
29589963,1cyclictest0-21swapper/021:59:440
29589962,3cyclictest7237-11brltty21:21:290
29589962,3cyclictest658-21snmpd23:59:120
29589962,3cyclictest658-21snmpd23:46:150
29589962,3cyclictest658-21snmpd23:35:190
29589962,3cyclictest658-21snmpd22:16:290
29589962,3cyclictest658-21snmpd21:32:360
29589962,3cyclictest658-21snmpd21:02:140
29589962,3cyclictest658-21snmpd20:47:500
29589962,3cyclictest658-21snmpd20:06:240
29589962,3cyclictest658-21snmpd19:21:560
29589962,3cyclictest658-21snmpd00:35:410
29589962,3cyclictest658-21snmpd00:13:400
29589962,3cyclictest658-21snmpd00:13:400
29589962,3cyclictest5298-21cat22:35:190
29589962,3cyclictest3254-21expr20:20:120
29589962,3cyclictest30663-21cat23:30:160
29589962,3cyclictest22945-21pmu-power19:50:170
29589962,3cyclictest22829-21head23:05:220
29589962,3cyclictest19178-21cut19:45:010
29589962,3cyclictest1656-21sed20:15:170
29589962,3cyclictest11312-21sed21:40:160
29589962,3cyclictest0-21swapper/020:32:150
29589962,2cyclictest275-21systemd-journal20:29:170
29589962,1cyclictest0-21swapper/022:12:190
29589962,1cyclictest0-21swapper/022:09:560
29589962,1cyclictest0-21swapper/021:51:550
29589960,6cyclictest0-21swapper/019:45:190
29589960,1cyclictest141rcu_preempt20:00:110
29589960,0cyclictest0-21swapper/021:38:450
29709953,1cyclictest21096-21df21:00:143
29709952,3cyclictest2851-21kworker/3:019:55:163
29709952,2cyclictest8942-21cat19:20:153
29709952,2cyclictest658-21snmpd19:25:093
29709952,2cyclictest4316-21ssh22:55:033
29709952,2cyclictest3343-21cut19:10:123
29709952,2cyclictest3181-21cat20:20:123
29709952,2cyclictest31309-21tune2fs20:10:183
29709952,2cyclictest22492-21head19:50:133
29709952,2cyclictest17499-21expr19:40:133
29709952,2cyclictest16487-21cat20:50:123
29709952,2cyclictest10249-21cat20:35:123
29709952,1cyclictest24912-21diskmemload00:30:093
29709951,3cyclictest7444-21ntp_kernel_err23:55:163
29709951,3cyclictest658-21snmpd23:20:033
29709951,3cyclictest23899-21/usr/sbin/munin21:05:183
29709951,3cyclictest20207-21sshd20:57:183
29709951,3cyclictest12931-21expr19:30:133
29709950,4cyclictest28508-21fschecks_count22:30:153
29709950,3cyclictest4386-21/usr/sbin/munin22:15:193
29679952,2cyclictest9798-21grep19:20:202
29679952,2cyclictest4207-21expr22:35:132
29679952,2cyclictest2758-21grep21:35:122
29679952,2cyclictest27492-21ssh21:50:152
29679952,2cyclictest21921-21dpkg19:50:112
29679952,2cyclictest1613-21expr21:15:142
29679952,1cyclictest0-21swapper/222:25:162
29679951,3cyclictest658-21snmpd23:55:132
29679951,3cyclictest22677-21df23:45:132
29679951,3cyclictest21077-21expr21:00:142
29679951,3cyclictest13368-21cat19:30:142
29679951,2cyclictest25703-21cat21:10:132
29679950,4cyclictest30329-21sh23:30:132
29679950,4cyclictest10739-21ls19:25:132
29679950,1cyclictest141rcu_preempt20:45:112
29629955,0cyclictest0-21swapper/120:55:011
29629953,1cyclictest51050irq/138-enp4s0-00:05:021
29629952,2cyclictest9585-21cpu20:35:101
29629952,2cyclictest658-21snmpd21:35:031
29629952,2cyclictest658-21snmpd21:05:031
29629952,2cyclictest658-21snmpd19:16:391
29629952,2cyclictest4731-21vmstat19:10:221
29629952,2cyclictest31152-21cat20:10:151
29629952,2cyclictest26119-21cat21:10:141
29629952,2cyclictest19636-21df22:05:121
29629952,2cyclictest17439-21ls19:40:131
29629952,2cyclictest16239-21ssh00:20:091
29629952,2cyclictest12030-21uptime19:25:201
29629952,2cyclictest11919-21cat20:40:111
29629952,2cyclictest11703-21expr22:20:131
29629952,2cyclictest11703-21expr22:20:121
29629952,2cyclictest11437-21ntpq00:35:171
29629952,2cyclictest0-21swapper/120:47:521
29629951,3cyclictest658-21snmpd21:02:391
29629950,4cyclictest29984-21hddtemp_smartct23:10:141
29589953,1cyclictest16235-21acpi20:50:110
29589952,2cyclictest658-21snmpd20:58:290
29589952,2cyclictest275-21systemd-journal20:40:080
29589952,2cyclictest12643-21sh23:00:030
29589951,3cyclictest275-21systemd-journal20:10:060
29679941,2cyclictest658-21snmpd20:50:082
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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