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2026-05-22 - 09:24
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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 Fri May 22, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
225222290260,19sleep20-21swapper/219:06:402
226172270238,21sleep30-21swapper/319:07:373
227462264232,22sleep10-21swapper/119:09:171
225142264235,19sleep00-21swapper/019:06:350
138092620,0sleep00-21swapper/021:30:050
280262590,0sleep20-21swapper/220:30:132
280262590,0sleep20-21swapper/220:30:122
133262590,0sleep10-21swapper/122:09:111
59052560,0sleep30-21swapper/322:24:113
272752560,0sleep20-21swapper/220:30:012
185692550,0sleep10-21swapper/121:32:331
204582530,0sleep00-21swapper/022:51:270
64852140,0sleep10-21swapper/123:03:011
156682140,0sleep30-21swapper/323:08:303
243402100,0sleep20-21swapper/200:32:142
2288999109,1cyclictest34-21ksoftirqd/320:15:013
27371280,0sleep10-21swapper/123:15:181
25896280,0sleep30-21swapper/322:55:133
228889986,1cyclictest959-21users22:20:202
228889981,6cyclictest9989-21sed21:00:212
228869987,1cyclictest12-21ksoftirqd/000:40:010
228869986,2cyclictest12-21ksoftirqd/021:09:590
228869984,3cyclictest275-21systemd-journal21:04:590
28561270,1sleep1211rcuc/123:35:271
228899976,1cyclictest34-21ksoftirqd/300:25:013
228899976,1cyclictest30223-21ssh22:19:323
228899975,1cyclictest34-21ksoftirqd/323:20:013
228899973,3cyclictest658-21snmpd23:30:533
228899973,3cyclictest32207-21cut22:40:023
228899972,3cyclictest275-21systemd-journal22:02:133
228899972,1cyclictest0-21swapper/323:35:203
228899970,6cyclictest275-21systemd-journal19:40:493
228889976,1cyclictest28-21ksoftirqd/223:15:012
228889976,1cyclictest28-21ksoftirqd/222:40:012
228889973,3cyclictest658-21snmpd22:30:012
228889973,3cyclictest275-21systemd-journal20:09:352
228889973,2cyclictest275-21systemd-journal22:14:462
228889971,1cyclictest141rcu_preempt22:50:112
228889971,1cyclictest141rcu_preempt22:03:202
228889970,4cyclictest28-21ksoftirqd/223:35:112
228879975,1cyclictest22412-21ssh21:55:021
228879973,2cyclictest275-21systemd-journal22:28:051
228869976,1cyclictest12-21ksoftirqd/022:00:010
228869973,1cyclictest0-21swapper/023:00:580
228869972,3cyclictest560-21gdbus23:55:010
228869970,7cyclictest0-21swapper/023:09:250
228869970,3cyclictest101401cat23:45:010
19103270,1sleep119101-21ssh23:50:141
13105270,0sleep10-21swapper/123:06:331
228899964,2cyclictest15763-21memory22:10:163
228899963,2cyclictest9443-21ssh22:45:143
228899963,2cyclictest658-21snmpd20:51:593
228899963,2cyclictest658-21snmpd20:46:413
228899963,2cyclictest658-21snmpd00:22:333
228899963,2cyclictest31669-21rm21:20:333
228899963,2cyclictest29379-21uptime00:15:213
228899963,2cyclictest275-21systemd-journal21:36:083
228899963,2cyclictest25943-21sshd19:15:093
228899963,2cyclictest23314-21ssh22:53:393
228899963,2cyclictest21047-21sh22:32:553
228899963,2cyclictest12101-21rm23:45:203
228899963,2cyclictest10345-21ssh22:06:533
228899963,1cyclictest0-21swapper/321:54:293
228899962,3cyclictest658-21snmpd23:40:143
228899962,3cyclictest658-21snmpd21:25:553
228899962,3cyclictest658-21snmpd20:26:173
228899962,3cyclictest658-21snmpd20:20:233
228899962,3cyclictest658-21snmpd19:35:103
228899962,3cyclictest658-21snmpd19:28:493
228899962,3cyclictest658-21snmpd00:35:033
228899962,3cyclictest658-21snmpd00:12:453
228899962,3cyclictest658-21snmpd00:00:563
228899962,3cyclictest504-21dbus-daemon23:13:213
228899962,3cyclictest471-21find19:30:123
228899962,3cyclictest3643-21wc23:20:203
228899962,3cyclictest32642-21which20:40:123
228899962,3cyclictest31699-21systemctl21:40:183
228899962,3cyclictest29301-11brltty21:00:063
228899962,3cyclictest28488-21expr19:20:123
228899962,3cyclictest275-21systemd-journal21:57:243
228899962,3cyclictest22041-21tail21:15:163
228899962,3cyclictest19518-21cat23:50:153
228899962,3cyclictest11083-21cat21:05:133
228899962,2cyclictest275-21systemd-journal21:47:113
228899962,1cyclictest0-21swapper/323:25:403
228899962,1cyclictest0-21swapper/323:02:403
228899962,1cyclictest0-21swapper/321:11:043
228899962,1cyclictest0-21swapper/300:06:553
228899961,4cyclictest25043-21sshd00:32:483
228899961,3cyclictest275-21systemd-journal22:40:033
228899960,2cyclictest9407-21/usr/sbin/munin19:50:173
228899960,2cyclictest275-21systemd-journal19:55:243
228899960,1cyclictest15857-21munin-run20:05:003
228889966,0cyclictest0-21swapper/223:50:252
228889964,2cyclictest6686-21ssh23:42:162
228889964,1cyclictest12295-21ssh21:48:412
228889963,2cyclictest674-21lldpd20:22:442
228889963,2cyclictest658-21snmpd20:40:082
228889963,2cyclictest501-21in:imuxsock23:06:372
228889963,2cyclictest501-21in:imuxsock21:15:332
228889963,2cyclictest4712-21cron19:40:002
228889963,2cyclictest377-21sh00:18:022
228889963,2cyclictest30506-21tr20:35:132
228889963,2cyclictest29451-21grep19:20:332
228889963,2cyclictest275-21systemd-journal22:38:362
228889963,2cyclictest275-21systemd-journal21:37:202
228889963,2cyclictest275-21systemd-journal21:10:582
228889963,2cyclictest275-21systemd-journal19:49:082
228889963,2cyclictest20497-21latency_hist20:15:012
228889963,2cyclictest19681-21ssh21:53:042
228889963,2cyclictest15701-21vmstat21:30:202
228889963,2cyclictest13962-21ssh00:25:322
228889963,2cyclictest12794-21sshd22:47:072
228889963,2cyclictest12021-21expr19:55:142
228889963,2cyclictest11108-21sh00:05:052
228889963,1cyclictest0-21swapper/223:30:482
228889963,1cyclictest0-21swapper/223:02:482
228889962,3cyclictest658-21snmpd23:26:262
228889962,3cyclictest658-21snmpd21:21:162
228889962,3cyclictest658-21snmpd20:55:512
228889962,3cyclictest658-21snmpd20:18:142
228889962,3cyclictest658-21snmpd20:00:252
228889962,3cyclictest658-21snmpd19:51:542
228889962,3cyclictest658-21snmpd19:31:512
228889962,3cyclictest658-21snmpd19:26:032
228889962,3cyclictest504-21dbus-daemon23:00:002
228889962,3cyclictest275-21systemd-journal23:45:522
228889962,3cyclictest22876-21grep21:55:152
228889962,3cyclictest1-21systemd00:35:172
228889962,3cyclictest11667-21ntpq21:05:172
228889962,1cyclictest0-21swapper/222:17:262
228889962,1cyclictest0-21swapper/221:40:122
228889961,2cyclictest3381-21ssh00:20:082
228889961,0cyclictest141rcu_preempt23:17:032
228889960,6cyclictest0-21swapper/223:58:572
228889960,2cyclictest0-21swapper/200:10:162
228889960,0cyclictest0-21swapper/221:26:182
228889960,0cyclictest0-21swapper/220:45:032
228879966,0cyclictest0-21swapper/122:47:361
228879966,0cyclictest0-21swapper/120:19:091
228879963,2cyclictest658-21snmpd23:46:271
228879963,2cyclictest658-21snmpd19:44:071
228879963,2cyclictest504-21dbus-daemon22:30:061
228879963,2cyclictest3862-21switchtime23:40:181
228879963,2cyclictest3513-21sshd22:22:181
228879963,2cyclictest22048-21chrt21:35:071
228879963,2cyclictest14282-21ntpq21:10:181
228879963,2cyclictest14243-21ssh00:06:191
228879963,2cyclictest0-21swapper/123:10:051
228879963,1cyclictest12716-21diskmemload00:01:461
228879963,1cyclictest0-21swapper/122:16:021
228879962,3cyclictest658-21snmpd22:55:131
228879962,3cyclictest658-21snmpd22:44:301
228879962,3cyclictest658-21snmpd22:03:391
228879962,3cyclictest658-21snmpd21:41:041
228879962,3cyclictest658-21snmpd21:00:241
228879962,3cyclictest658-21snmpd20:59:031
228879962,3cyclictest658-21snmpd20:54:121
228879962,3cyclictest658-21snmpd20:44:211
228879962,3cyclictest658-21snmpd20:38:531
228879962,3cyclictest658-21snmpd20:23:161
228879962,3cyclictest658-21snmpd19:55:311
228879962,3cyclictest658-21snmpd19:47:011
228879962,3cyclictest658-21snmpd19:27:181
228879962,3cyclictest504-21dbus-daemon22:36:301
228879962,3cyclictest27784-21cat23:55:161
228879962,3cyclictest26936-21awk19:15:181
228879962,3cyclictest19771-21cat00:10:141
228879962,3cyclictest17073-21ntpq20:05:161
228879962,3cyclictest15066-21expr21:50:151
228879962,3cyclictest0-21swapper/100:38:541
228879962,1cyclictest0-21swapper/100:28:021
228879961,1cyclictest12712-21perf21:10:001
228879960,6cyclictest30844-21ssh00:16:281
228879960,6cyclictest0-21swapper/123:30:021
228879960,6cyclictest0-21swapper/122:50:441
228879960,6cyclictest0-21swapper/121:46:151
228879960,6cyclictest0-21swapper/121:16:521
228879960,5cyclictest5903-21fschecks_count21:25:131
228869963,2cyclictest9237-21ssh21:46:230
228869963,2cyclictest674-21lldpd21:44:570
228869963,2cyclictest658-21snmpd20:53:210
228869963,2cyclictest658-21snmpd20:15:100
228869963,2cyclictest5393-21ssh21:25:090
228869963,2cyclictest4028-21ssh00:00:190
228869963,2cyclictest26794-21tune2fs23:15:130
228869963,2cyclictest26782-21sh21:37:340
228869963,2cyclictest21078-21sh22:13:480
228869963,2cyclictest20680-21tune2fs00:30:140
228869963,2cyclictest15099-21sh00:06:590
228869963,1cyclictest0-21swapper/000:16:490
228869962,3cyclictest7002-21awk22:25:000
228869962,3cyclictest658-21snmpd23:10:160
228869962,3cyclictest658-21snmpd22:00:570
228869962,3cyclictest658-21snmpd21:52:330
228869962,3cyclictest658-21snmpd20:31:140
228869962,3cyclictest658-21snmpd20:31:140
228869962,3cyclictest658-21snmpd20:10:250
228869962,3cyclictest658-21snmpd20:05:580
228869962,3cyclictest658-21snmpd19:50:040
228869962,3cyclictest658-21snmpd19:38:520
228869962,3cyclictest658-21snmpd19:21:290
228869962,3cyclictest658-21snmpd19:18:320
228869962,3cyclictest658-21snmpd19:10:120
228869962,3cyclictest658-21snmpd00:27:210
228869962,3cyclictest658-21snmpd00:20:530
228869962,3cyclictest658-21snmpd00:13:290
228869962,3cyclictest31409-21cat19:25:160
228869962,3cyclictest29301-11brltty20:55:070
228869962,3cyclictest2803-21cat23:20:140
228869962,3cyclictest27597-21cat23:35:160
228869962,3cyclictest19197-21cat23:30:150
228869962,1cyclictest50950irq/137-enp4s0-22:31:040
228869962,1cyclictest0-21swapper/022:57:040
228869962,1cyclictest0-21swapper/022:41:000
228869962,1cyclictest0-21swapper/022:05:350
228869962,1cyclictest0-21swapper/021:21:390
228869962,1cyclictest0-21swapper/021:14:280
228869961,3cyclictest275-21systemd-journal23:27:310
228869960,6cyclictest0-21swapper/022:27:330
228869960,6cyclictest0-21swapper/022:15:310
228869960,5cyclictest24782-21fw_packets22:35:140
228869960,0cyclictest141rcu_preempt20:25:190
228869960,0cyclictest0-21swapper/022:46:560
228899952,2cyclictest6651-21expr20:55:113
228899952,2cyclictest30248-21grep20:35:133
228899952,2cyclictest26825-21sh23:55:053
228899952,2cyclictest20647-21cat20:15:133
228899952,2cyclictest17737-21sshd20:06:083
228899951,3cyclictest7623-21sort19:45:133
228899951,3cyclictest28530-21ntpq20:30:163
228899951,3cyclictest28530-21ntpq20:30:163
228899951,3cyclictest14834-21memory21:30:153
228899950,4cyclictest7516-21gdbus22:25:023
228889953,1cyclictest25826-21grep19:15:022
228889952,2cyclictest658-21snmpd19:40:062
228889952,2cyclictest4464-21forks20:50:122
228889952,2cyclictest2290-21cstates23:20:132
228889952,2cyclictest16263-21ls22:30:132
228889951,3cyclictest569-21gdbus00:00:012
228889950,3cyclictest275-21systemd-journal22:05:112
228889950,3cyclictest275-21systemd-journal19:10:232
228879955,0cyclictest0-21swapper/100:30:191
228879953,1cyclictest2207-21cpuspeed_turbos23:20:131
228879952,2cyclictest658-21snmpd19:20:051
228879952,2cyclictest504-21dbus-daemon19:55:011
228879952,2cyclictest4012-21fw_packets00:20:131
228879952,2cyclictest2931-21grep19:35:111
228879952,2cyclictest25587-21gltestperf20:25:131
228879952,2cyclictest14970-21ssh22:10:131
228879952,2cyclictest14253-21cat20:00:121
228879952,2cyclictest1-21systemd20:30:001
228879952,2cyclictest1-21systemd20:30:001
228879951,3cyclictest2829-21/usr/sbin/munin20:45:171
228879951,3cyclictest1226-21/usr/sbin/munin19:30:141
228879951,3cyclictest11017-21cat23:25:151
228879950,4cyclictest29601-21/usr/sbin/munin21:20:111
228879950,4cyclictest18865-21grep20:10:131
228879950,3cyclictest23532-21sort19:10:151
228869953,1cyclictest32489-21grep20:40:130
228869953,1cyclictest21398-21sh21:15:120
228869953,1cyclictest15187-21grep20:00:190
228869953,1cyclictest12578-21tr19:55:180
228869952,2cyclictest7189-21sshd19:45:100
228869952,2cyclictest30596-21/usr/sbin/munin20:35:150
228869952,2cyclictest27138-21grep23:55:130
228869952,2cyclictest23492-21cat20:20:130
228869952,2cyclictest1941-21grep20:45:110
228869952,2cyclictest1818-21date19:30:200
228869952,2cyclictest10821-1kworker/u9:223:45:120
228869951,3cyclictest5101-21cat19:40:120
228899940,3cyclictest23091-21chrt19:10:063
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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