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2026-08-02 - 13:24
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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 the 376 highest latencies:
System rackaslot8.osadl.org (updated Sun Aug 02, 2026 00:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
222582321295,17sleep20-21swapper/219:05:392
226102286255,21sleep10-21swapper/119:09:561
223972281248,22sleep00-21swapper/019:07:090
224002273240,22sleep30-21swapper/319:07:113
223872590,0sleep20-21swapper/222:51:112
284592580,0sleep20-21swapper/223:52:492
225352570,1sleep30-21swapper/321:15:203
54472560,0sleep20-21swapper/222:03:182
188242560,0sleep20-21swapper/200:25:152
188302530,0sleep20-21swapper/222:49:512
143522520,0sleep20-21swapper/222:27:352
198432210,0sleep00-21swapper/021:33:240
265932150,0sleep00-21swapper/023:13:270
176732150,0sleep20-21swapper/221:12:472
22732991413,1cyclictest34-21ksoftirqd/322:15:013
113572140,0sleep20-21swapper/221:47:242
2273299129,2cyclictest34-21ksoftirqd/319:15:023
2273299129,2cyclictest34-21ksoftirqd/300:20:003
144262120,0sleep10-21swapper/122:27:391
2273299119,2cyclictest34-21ksoftirqd/320:35:003
2273299118,2cyclictest34-21ksoftirqd/323:20:013
2273299118,2cyclictest34-21ksoftirqd/321:50:003
2273299118,2cyclictest34-21ksoftirqd/321:00:013
2273299109,1cyclictest34-21ksoftirqd/322:00:013
2273299109,1cyclictest34-21ksoftirqd/320:50:013
2273299109,1cyclictest34-21ksoftirqd/320:15:013
2273299109,1cyclictest34-21ksoftirqd/320:05:013
2273299108,1cyclictest34-21ksoftirqd/323:15:013
2273299108,1cyclictest34-21ksoftirqd/319:35:003
2273299107,2cyclictest34-21ksoftirqd/321:25:003
2273299104,4cyclictest34-21ksoftirqd/300:36:473
227329998,1cyclictest34-21ksoftirqd/323:25:003
227329998,1cyclictest34-21ksoftirqd/322:40:003
227329998,1cyclictest34-21ksoftirqd/320:20:013
227329998,1cyclictest34-21ksoftirqd/300:00:013
227329997,2cyclictest34-21ksoftirqd/319:15:023
227329996,2cyclictest34-21ksoftirqd/300:10:003
227289992,4cyclictest634-21perf22:20:002
227249992,4cyclictest5158-21dump-pmu-power21:25:011
227249991,7cyclictest16529-21find23:45:211
227329987,1cyclictest34-21ksoftirqd/323:00:013
227329987,1cyclictest34-21ksoftirqd/322:40:013
227329987,1cyclictest34-21ksoftirqd/300:00:013
227329986,2cyclictest34-21ksoftirqd/319:30:003
227329986,1cyclictest34-21ksoftirqd/323:35:003
227329985,3cyclictest331rcuc/323:50:123
227329984,2cyclictest34-21ksoftirqd/322:47:153
227329982,4cyclictest34-21ksoftirqd/322:01:233
227329982,4cyclictest34-21ksoftirqd/321:53:453
227329982,4cyclictest34-21ksoftirqd/321:35:163
227329982,3cyclictest2126-21ssh21:41:463
227329981,5cyclictest34-21ksoftirqd/322:50:493
227329981,4cyclictest34-21ksoftirqd/322:31:213
227329981,1cyclictest17755-21apt-get00:25:113
227329980,4cyclictest0-21swapper/322:21:243
227289986,1cyclictest28-21ksoftirqd/220:00:012
227249984,3cyclictest658-21snmpd22:55:291
20813280,0sleep30-21swapper/321:34:063
11108280,1sleep10-21swapper/100:01:241
8121270,0sleep20-21swapper/223:40:202
4147270,1sleep0131rcuc/022:40:200
227329976,1cyclictest34-21ksoftirqd/321:10:013
227329976,1cyclictest34-21ksoftirqd/320:30:003
227329976,1cyclictest34-21ksoftirqd/320:00:013
227329976,1cyclictest331rcuc/320:45:003
227329975,2cyclictest34-21ksoftirqd/320:55:013
227329975,2cyclictest34-21ksoftirqd/320:25:003
227329974,2cyclictest34-21ksoftirqd/322:30:003
227329973,1cyclictest34-21ksoftirqd/321:25:573
227329972,3cyclictest34-21ksoftirqd/323:04:153
227329972,3cyclictest34-21ksoftirqd/322:18:093
227329971,4cyclictest34-21ksoftirqd/319:45:153
227329971,4cyclictest34-21ksoftirqd/300:11:403
227329971,4cyclictest331rcuc/323:26:333
227329971,1cyclictest141rcu_preempt23:45:223
227329971,1cyclictest141rcu_preempt21:10:223
227329970,5cyclictest34-21ksoftirqd/323:41:223
227329970,5cyclictest34-21ksoftirqd/323:31:263
227329970,4cyclictest34-21ksoftirqd/300:30:153
227329970,4cyclictest0-21swapper/323:05:203
227329970,4cyclictest0-21swapper/322:05:383
227329970,4cyclictest0-21swapper/300:22:503
227289974,2cyclictest31741-21ntp_states23:35:182
227289973,3cyclictest275-21systemd-journal21:33:102
227289970,1cyclictest8705-21ssh00:19:552
227249975,1cyclictest0-21swapper/122:00:141
227249973,3cyclictest658-21snmpd23:12:591
227249973,3cyclictest504-21dbus-daemon23:38:001
227249973,3cyclictest31868-21apt-get23:55:131
227249973,3cyclictest275-21systemd-journal23:32:271
227249973,3cyclictest275-21systemd-journal21:17:411
227249973,3cyclictest20869-21systemctl22:50:201
227249970,6cyclictest16637-21apt-get22:10:121
227229976,1cyclictest12-21ksoftirqd/000:20:010
227229973,3cyclictest658-21snmpd23:06:150
227229973,3cyclictest275-21systemd-journal23:05:000
227229973,3cyclictest275-21systemd-journal20:05:530
227229973,3cyclictest275-21systemd-journal19:26:040
227229973,3cyclictest275-21systemd-journal19:24:320
227229973,3cyclictest275-21systemd-journal00:32:470
227229973,1cyclictest22971-21turbostat23:49:590
227229973,1cyclictest0-21swapper/022:47:490
227229973,1cyclictest0-21swapper/022:18:000
9713260,0sleep20-21swapper/221:02:032
9713260,0sleep20-21swapper/221:02:022
227329966,0cyclictest0-21swapper/319:20:233
227329965,1cyclictest34-21ksoftirqd/320:35:003
227329965,1cyclictest34-21ksoftirqd/320:05:013
227329964,2cyclictest34-21ksoftirqd/319:50:133
227329960,4cyclictest5845-21sort19:40:213
227329960,4cyclictest34-21ksoftirqd/321:00:143
227329960,4cyclictest34-21ksoftirqd/321:00:143
227329960,4cyclictest0-21swapper/319:35:563
227289964,1cyclictest9333-21df19:50:142
227289963,2cyclictest9467-21ssh21:26:542
227289963,2cyclictest658-21snmpd22:39:172
227289963,2cyclictest658-21snmpd00:33:012
227289963,2cyclictest504-21dbus-daemon19:44:082
227289963,2cyclictest3031-21ssh22:20:282
227289963,2cyclictest30272-21ssh00:13:092
227289963,2cyclictest28951-21awk19:20:172
227289963,2cyclictest28530-21sh23:34:012
227289963,2cyclictest2827-21sshd21:42:182
227289963,2cyclictest27991-21sh21:38:122
227289963,2cyclictest275-21systemd-journal23:16:392
227289963,2cyclictest275-21systemd-journal20:44:032
227289963,2cyclictest275-21systemd-journal19:47:042
227289963,2cyclictest18558-21uname20:10:182
227289963,2cyclictest12559-21taskset00:02:312
227289962,3cyclictest658-21snmpd23:10:212
227289962,3cyclictest658-21snmpd22:57:082
227289962,3cyclictest658-21snmpd22:31:292
227289962,3cyclictest658-21snmpd22:14:222
227289962,3cyclictest658-21snmpd22:05:252
227289962,3cyclictest658-21snmpd21:51:182
227289962,3cyclictest658-21snmpd21:07:452
227289962,3cyclictest658-21snmpd20:30:432
227289962,3cyclictest658-21snmpd19:36:482
227289962,3cyclictest24668-21expr20:25:122
227289962,3cyclictest22484-21smart_sda21:15:202
227289962,3cyclictest14204-21cat20:00:162
227289962,3cyclictest13829-21ls23:25:112
227289962,3cyclictest10066-21cat00:20:142
227289961,3cyclictest658-21snmpd00:05:312
227289961,3cyclictest275-21systemd-journal20:36:242
227289961,3cyclictest275-21systemd-journal00:35:012
227289960,6cyclictest0-21swapper/223:21:492
227289960,6cyclictest0-21swapper/223:01:382
227289960,0cyclictest0-21swapper/223:47:132
227249966,0cyclictest0-21swapper/100:05:181
227249963,2cyclictest658-21snmpd19:25:561
227249963,2cyclictest6137-21sh23:00:421
227249963,2cyclictest4432-21tr20:50:171
227249963,2cyclictest31756-21idleruntime-cro22:00:011
227249963,2cyclictest30969-21sh00:32:371
227249963,2cyclictest275-21systemd-journal22:18:381
227249963,2cyclictest275-21systemd-journal19:40:031
227249963,2cyclictest2497-21sed00:15:191
227249963,2cyclictest23877-21awk21:35:201
227249963,2cyclictest19676-21ssh21:52:181
227249963,2cyclictest16513-21ssh21:30:531
227249963,2cyclictest16328-21irqstats20:05:151
227249963,2cyclictest15540-21sh21:11:121
227249963,1cyclictest22-21ksoftirqd/100:11:561
227249962,3cyclictest658-21snmpd23:27:061
227249962,3cyclictest658-21snmpd23:21:001
227249962,3cyclictest658-21snmpd22:49:591
227249962,3cyclictest658-21snmpd22:40:591
227249962,3cyclictest658-21snmpd22:06:211
227249962,3cyclictest658-21snmpd21:40:051
227249962,3cyclictest658-21snmpd20:44:341
227249962,3cyclictest658-21snmpd20:25:391
227249962,3cyclictest658-21snmpd20:10:321
227249962,3cyclictest658-21snmpd19:57:321
227249962,3cyclictest658-21snmpd19:50:481
227249962,3cyclictest658-21snmpd19:30:351
227249962,3cyclictest658-21snmpd19:19:161
227249962,3cyclictest2980-21cat00:35:161
227249962,3cyclictest28380-11brltty20:36:491
227249962,3cyclictest275-21systemd-journal23:20:001
227249962,3cyclictest275-21systemd-journal21:27:071
227249962,3cyclictest26660-21cat22:35:151
227249962,3cyclictest18495-21cat00:25:141
227249962,1cyclictest0-21swapper/122:20:151
227249962,1cyclictest0-21swapper/100:20:031
227249961,2cyclictest674-21lldpd23:05:201
227249960,6cyclictest0-21swapper/120:00:171
227249960,5cyclictest275-21systemd-journal21:49:041
227249960,5cyclictest24911-21awk19:15:011
227229964,1cyclictest32516-21gltestperf23:55:150
227229963,2cyclictest658-21snmpd20:25:150
227229963,2cyclictest658-21snmpd19:48:170
227229963,2cyclictest658-21snmpd00:20:010
227229963,2cyclictest3558-21awk19:35:200
227229963,2cyclictest31482-21cut21:40:130
227229963,2cyclictest31375-21ssh23:15:440
227229963,2cyclictest27925-21sh00:11:230
227229963,2cyclictest275-21systemd-journal21:10:010
227229963,2cyclictest275-21systemd-journal19:34:320
227229963,2cyclictest19448-21head00:25:200
227229963,2cyclictest19346-21systemctl22:30:200
227229963,2cyclictest13811-21diskstats20:00:120
227229963,2cyclictest12587-21sshd00:02:310
227229963,2cyclictest11965-21ssh21:47:520
227229962,3cyclictest658-21snmpd23:33:300
227229962,3cyclictest658-21snmpd23:21:450
227229962,3cyclictest658-21snmpd22:57:370
227229962,3cyclictest658-21snmpd22:38:320
227229962,3cyclictest658-21snmpd21:22:080
227229962,3cyclictest658-21snmpd21:16:170
227229962,3cyclictest658-21snmpd21:04:160
227229962,3cyclictest658-21snmpd21:04:160
227229962,3cyclictest658-21snmpd20:36:120
227229962,3cyclictest658-21snmpd20:32:190
227229962,3cyclictest658-21snmpd20:24:420
227229962,3cyclictest658-21snmpd19:16:260
227229962,3cyclictest658-21snmpd19:11:100
227229962,3cyclictest31943-21awk20:40:160
227229962,3cyclictest20104-21cut22:50:140
227229962,3cyclictest17224-21cat00:05:190
227229962,3cyclictest1-21systemd19:52:020
227229962,2cyclictest275-21systemd-journal20:53:540
227229962,1cyclictest0-21swapper/023:43:310
227229962,1cyclictest0-21swapper/023:29:000
227229962,1cyclictest0-21swapper/022:25:190
227229962,1cyclictest0-21swapper/022:23:370
227229962,1cyclictest0-21swapper/021:26:350
227229960,6cyclictest0-21swapper/023:50:580
227229960,6cyclictest0-21swapper/023:39:260
21789260,0sleep10-21swapper/122:31:521
227289953,1cyclictest535-21expr19:30:122
227289952,2cyclictest658-21snmpd23:55:192
227289952,2cyclictest658-21snmpd21:55:042
227289952,2cyclictest658-21snmpd20:50:042
227289952,2cyclictest658-21snmpd19:10:022
227289952,2cyclictest3271-21cut22:40:142
227289952,2cyclictest30464-21grep21:20:142
227289952,2cyclictest275-21systemd-journal20:46:242
227289952,2cyclictest20322-21expr20:15:152
227289952,2cyclictest12113-21sh23:05:032
227289952,2cyclictest0-21swapper/220:55:142
227289951,3cyclictest30630-21/usr/sbin/munin19:25:122
227289951,3cyclictest25267-21cat19:15:022
227289951,3cyclictest22299-21/usr/sbin/munin20:20:112
227289951,3cyclictest16415-21sed20:05:162
227249953,1cyclictest658-21snmpd19:35:171
227249953,1cyclictest12250-21latency_hist21:10:001
227249952,2cyclictest7996-21acpi21:00:091
227249952,2cyclictest7996-21acpi21:00:091
227249952,2cyclictest7407-21cat19:45:151
227249952,2cyclictest658-21snmpd20:55:061
227249952,2cyclictest658-21snmpd20:20:181
227249952,2cyclictest28247-21expr19:20:121
227249952,2cyclictest23989-21cut23:50:141
227249951,3cyclictest658-21snmpd20:33:221
227249951,3cyclictest20752-21cat20:15:171
227249951,3cyclictest1580-21expr20:45:141
227249951,3cyclictest0-21swapper/123:40:141
227229952,2cyclictest8598-21expr22:05:130
227229952,2cyclictest658-21snmpd21:05:070
227229952,2cyclictest658-21snmpd20:45:060
227229952,2cyclictest658-21snmpd20:10:090
227229952,2cyclictest658-21snmpd19:55:050
227229952,2cyclictest6400-21basename20:55:130
227229952,2cyclictest5055-21grep19:40:170
227229952,2cyclictest32716-21cut22:00:140
227229952,2cyclictest24062-21ssh21:55:140
227229952,2cyclictest22262-21ssh21:35:030
227229952,2cyclictest20083-21apt-get20:15:150
227229951,3cyclictest16612-21/usr/sbin/munin22:10:150
227229951,3cyclictest15999-21/usr/sbin/munin21:50:140
227229950,4cyclictest1994-21sshd00:35:030
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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