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2026-05-30 - 07:04
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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
Characteristics of the highest latencies:
System rack1slot1.osadl.org (updated Sat May 30, 2026 00:45:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
314102233159,25sleep20-21swapper/219:07:092
314432229159,26sleep30-21swapper/319:07:353
315572206144,20sleep00-21swapper/019:09:050
315682201162,26sleep10-21swapper/119:09:141
310442760,0sleep10-21swapper/123:25:211
170872150,0sleep10-21swapper/100:35:141
3171699140,1cyclictest24559-21diskmemload00:20:172
3171699116,4cyclictest1029-21snmpd20:50:262
31716991110,1cyclictest28-21ksoftirqd/219:20:002
3171699111,2cyclictest0-21swapper/222:48:592
3171699111,1cyclictest18773-21timerwakeupswit22:25:192
294232110,0sleep024559-21diskmemload00:08:030
217102110,0sleep30-21swapper/321:46:023
3171699108,1cyclictest28-21ksoftirqd/220:29:592
3171699105,4cyclictest61650irq/122-eno123:27:162
3171699103,1cyclictest240-21systemd-journal22:10:002
31716991010,0cyclictest0-21swapper/222:10:102
3171699101,1cyclictest21886-21aten_r1power_en23:15:102
3171699101,1cyclictest0-21swapper/219:20:122
3171699100,2cyclictest0-21swapper/222:31:252
3171699100,2cyclictest0-21swapper/221:52:022
31702991010,0cyclictest9-21ksoftirqd/022:58:120
3170299101,4cyclictest13212-21cat22:19:590
3170299100,6cyclictest0-21swapper/023:10:000
118742100,1sleep2240-21systemd-journal21:35:002
32301290,0sleep00-21swapper/021:19:530
317249991,7cyclictest1653-21munin-node00:32:333
317249990,3cyclictest32495-21df22:45:133
317249990,2cyclictest0-21swapper/321:50:113
317169996,3cyclictest61650irq/122-eno123:02:572
317169995,3cyclictest61650irq/122-eno119:35:202
317169994,1cyclictest61650irq/122-eno123:05:512
317169994,0cyclictest24559-21diskmemload21:45:182
317169993,1cyclictest27263-21ssh23:20:182
317169993,1cyclictest25409-21hwlatdetect22:35:162
317169993,1cyclictest11206-21ssh00:25:402
317169993,1cyclictest0-21swapper/223:50:192
317169992,6cyclictest61650irq/122-eno121:15:142
317169991,5cyclictest0-21swapper/223:32:252
317169991,1cyclictest28146-21sort21:55:132
317169990,8cyclictest0-21swapper/200:01:542
317169990,3cyclictest0-21swapper/200:05:132
317169990,2cyclictest240-21systemd-journal23:45:002
317169990,2cyclictest240-21systemd-journal19:50:012
317169990,2cyclictest0-21swapper/223:58:032
317169990,1cyclictest240-21systemd-journal23:50:002
317169990,1cyclictest240-21systemd-journal20:20:002
317169990,1cyclictest240-21systemd-journal20:15:002
317169990,1cyclictest240-21systemd-journal00:35:012
317169990,1cyclictest240-21systemd-journal00:14:592
317169990,1cyclictest0-21swapper/221:10:112
317169990,1cyclictest0-21swapper/220:40:122
317029997,1cyclictest9-21ksoftirqd/020:40:000
317249986,1cyclictest6932-21irqstats22:10:153
317249986,1cyclictest1029-21snmpd23:45:523
317249986,1cyclictest1029-21snmpd22:27:473
317249986,1cyclictest1029-21snmpd22:15:583
317249986,1cyclictest1029-21snmpd21:15:283
317249986,1cyclictest1029-21snmpd20:55:263
317249986,1cyclictest1029-21snmpd19:41:053
317249984,3cyclictest13650irq/124-ahci[0020:11:223
317249981,5cyclictest561-21nscd22:55:563
317249980,4cyclictest4245-21apt-get23:35:123
317169986,2cyclictest61650irq/122-eno122:50:032
317169986,2cyclictest61650irq/122-eno122:43:092
317169986,2cyclictest61650irq/122-eno122:17:122
317169986,1cyclictest61650irq/122-eno121:35:212
317169986,1cyclictest4732-21ssh21:25:132
317169985,3cyclictest61650irq/122-eno100:16:592
317169984,1cyclictest61650irq/122-eno122:21:242
317169983,1cyclictest18463-21gltestperf20:55:142
317169982,4cyclictest16003-21apt-get21:40:112
317169982,1cyclictest6749-21hwlatdetect20:30:152
317169982,1cyclictest31249-21tr22:00:132
317169982,1cyclictest19303-21cut19:50:012
317169982,1cyclictest18711-21sh23:10:132
317169982,0cyclictest0-21swapper/219:55:102
317169980,7cyclictest0-21swapper/221:20:332
317169980,4cyclictest13315-21cut20:45:132
317169980,3cyclictest0-21swapper/222:55:142
317169980,1cyclictest240-21systemd-journal23:40:012
317169980,1cyclictest240-21systemd-journal21:00:012
317169980,1cyclictest240-21systemd-journal00:39:592
317139981,4cyclictest0-21swapper/123:46:491
317029987,1cyclictest9-21ksoftirqd/023:59:590
317029987,1cyclictest9-21ksoftirqd/023:40:010
317029986,1cyclictest24817-21/usr/sbin/munin21:10:150
317029986,1cyclictest1029-21snmpd23:53:470
317029986,1cyclictest1029-21snmpd21:45:500
317029986,1cyclictest1029-21snmpd20:03:450
317029986,1cyclictest1029-21snmpd19:54:150
317029982,5cyclictest8210-21/usr/sbin/munin21:30:140
317029981,4cyclictest19450-21ssh21:45:000
317029981,1cyclictest20169-21ssh22:28:520
317029980,7cyclictest28039-21head21:55:140
317029980,7cyclictest16616-21apt-config19:45:000
317029980,4cyclictest0-21swapper/000:30:030
317029980,1cyclictest5377-21ssh22:09:020
317029980,1cyclictest14143-21ssh21:35:480
17451280,1sleep30-21swapper/323:08:543
317249976,1cyclictest10514-21cat19:30:143
317249976,1cyclictest1029-21snmpd19:57:213
317249976,1cyclictest1029-21snmpd19:10:043
317249975,1cyclictest1029-21snmpd22:43:313
317249975,1cyclictest1029-21snmpd19:53:393
317249975,1cyclictest1029-21snmpd19:36:473
317249975,1cyclictest1029-21snmpd00:02:583
317249971,4cyclictest25549-21apt-get23:20:103
317249971,4cyclictest20843-21/usr/sbin/munin23:55:213
317249970,6cyclictest5124-21apt-get00:20:003
317249970,5cyclictest0-21swapper/323:43:393
317249970,4cyclictest9762-21cat00:25:163
317249970,3cyclictest0-21swapper/322:52:403
317249970,3cyclictest0-21swapper/322:02:123
317249970,1cyclictest0-21swapper/300:15:113
317169975,1cyclictest1029-21snmpd21:05:172
317169974,0cyclictest61650irq/122-eno120:06:112
317169973,1cyclictest61650irq/122-eno120:35:202
317169970,1cyclictest240-21systemd-journal20:04:562
317139976,1cyclictest0-21swapper/119:10:131
317139971,6cyclictest0-21swapper/123:31:191
317139971,6cyclictest0-21swapper/121:49:211
317139971,4cyclictest0-21swapper/119:30:101
317139970,3cyclictest0-21swapper/123:35:111
317139970,1cyclictest0-21swapper/122:35:171
317139970,1cyclictest0-21swapper/119:53:001
317029975,1cyclictest8070-21ssh22:11:080
317029975,1cyclictest26033-21ssh21:52:150
317029975,1cyclictest23344-21cstates00:00:140
317029975,1cyclictest18643-21df_inode23:10:120
317029975,1cyclictest11457-21ssh00:26:230
317029972,2cyclictest3263-21/usr/sbin/munin22:50:120
317029972,2cyclictest240-21systemd-journal22:50:010
317029971,5cyclictest4219-21ssh21:25:110
317029971,5cyclictest1653-21munin-node19:34:120
317029970,7cyclictest3685-21ssh00:15:570
317029970,6cyclictest8896-21taskset00:24:400
317029970,6cyclictest25552-21ssh23:20:100
317029970,6cyclictest23729-21ssh23:15:380
317029970,6cyclictest0-21swapper/019:35:140
317029970,6cyclictest0-21swapper/000:35:140
317029970,1cyclictest7680-21apt-get23:40:020
317029970,1cyclictest32270-21ssh00:10:340
317029970,1cyclictest30466-21ssh22:41:310
317029970,1cyclictest21995-21ssh22:30:160
317029970,1cyclictest15799-21ssh22:21:590
317029970,1cyclictest0-21swapper/023:00:420
317029970,1cyclictest0-21swapper/022:04:100
317029970,1cyclictest0-21swapper/020:47:440
317029970,1cyclictest0-21swapper/020:24:340
317249965,1cyclictest9410-21ssh21:30:153
317249965,1cyclictest9408-21ntpq20:35:173
317249965,1cyclictest5816-21kworker/3:023:31:383
317249965,1cyclictest5816-21kworker/3:000:05:143
317249965,1cyclictest29534-21ssh21:56:403
317249965,1cyclictest26832-21ssh22:36:453
317249965,1cyclictest24744-21ssh23:18:333
317249965,1cyclictest20292-21ssh23:11:263
317249965,1cyclictest18534-21ssh21:42:313
317249965,1cyclictest17398-21ssh23:50:263
317249965,1cyclictest1029-21snmpd20:42:343
317249964,1cyclictest30286-21missed_timers23:25:163
317249964,1cyclictest13697-21fschecks_time20:45:143
317249964,1cyclictest1029-21snmpd23:00:473
317249964,1cyclictest1029-21snmpd22:32:443
317249964,1cyclictest1029-21snmpd20:01:203
317249963,1cyclictest4944-21fw_packets21:25:153
317249962,2cyclictest24559-21diskmemload00:13:493
317249960,3cyclictest0-21swapper/321:21:453
317249960,3cyclictest0-21swapper/321:11:163
317249960,2cyclictest0-21swapper/322:21:463
317249960,2cyclictest0-21swapper/322:05:143
317249960,1cyclictest0-21swapper/321:00:113
317169966,0cyclictest61650irq/122-eno119:25:442
317169965,1cyclictest61650irq/122-eno119:10:202
317169965,1cyclictest1029-21snmpd20:20:042
317139965,1cyclictest0-21swapper/122:31:141
317139965,1cyclictest0-21swapper/121:02:071
317139964,2cyclictest67232sleep119:21:081
317139963,0cyclictest0-21swapper/100:20:181
317139961,5cyclictest0-21swapper/123:02:171
317139961,5cyclictest0-21swapper/120:43:011
317139961,3cyclictest0-21swapper/123:43:241
317139960,6cyclictest0-21swapper/122:25:221
317139960,6cyclictest0-21swapper/121:40:161
317139960,6cyclictest0-21swapper/121:10:351
317139960,5cyclictest0-21swapper/122:58:421
317139960,5cyclictest0-21swapper/122:20:371
317139960,5cyclictest0-21swapper/121:22:211
317139960,5cyclictest0-21swapper/120:30:161
317139960,5cyclictest0-21swapper/100:00:151
317139960,4cyclictest0-21swapper/121:34:051
317139960,3cyclictest0-21swapper/123:53:561
317139960,3cyclictest0-21swapper/121:55:051
317139960,1cyclictest0-21swapper/122:54:361
317139960,1cyclictest0-21swapper/120:15:101
317139960,0cyclictest0-21swapper/123:20:291
317029965,1cyclictest9-21ksoftirqd/019:15:020
317029965,1cyclictest1029-21snmpd20:59:140
317029964,1cyclictest1029-21snmpd20:52:050
317029964,1cyclictest1029-21snmpd20:44:330
317029964,1cyclictest1029-21snmpd20:25:070
317029961,2cyclictest32691-21apt-get21:20:120
317029960,6cyclictest693-21runrttasks19:25:380
317029960,6cyclictest14190-21ssh23:46:510
317029960,6cyclictest0-21swapper/023:32:260
317029960,5cyclictest32655-21mailstats20:15:190
317029960,5cyclictest26177-21sed22:35:200
317029960,5cyclictest0-21swapper/021:00:210
317029960,1cyclictest0-21swapper/020:10:100
317029960,0cyclictest0-21swapper/023:26:210
317029960,0cyclictest0-21swapper/021:07:520
317029960,0cyclictest0-21swapper/020:07:380
317029960,0cyclictest0-21swapper/019:55:100
317029960,0cyclictest0-21swapper/019:20:180
317249954,1cyclictest18932-21ssh00:36:363
317249954,1cyclictest13630-21ssh21:35:223
317249953,1cyclictest18281-21sendmail_mailtr19:45:183
317249952,2cyclictest3572-21apt-get20:25:113
317249952,1cyclictest3236-21fschecks_time19:15:123
317249951,3cyclictest0-21swapper/319:25:133
317249950,2cyclictest240-21systemd-journal20:20:003
317249950,1cyclictest32067-21smartctl20:15:143
317169955,0cyclictest61650irq/122-eno119:30:102
317169950,4cyclictest0-21swapper/219:40:132
317139955,0cyclictest0-21swapper/122:44:461
317139955,0cyclictest0-21swapper/122:05:121
317139955,0cyclictest0-21swapper/100:17:571
317139955,0cyclictest0-21swapper/100:10:371
317139952,1cyclictest0-21swapper/121:52:591
317139951,3cyclictest0-21swapper/120:25:111
317139950,5cyclictest0-21swapper/122:03:401
317139950,5cyclictest0-21swapper/121:26:421
317139950,5cyclictest0-21swapper/121:19:171
317139950,5cyclictest0-21swapper/121:08:581
317139950,5cyclictest0-21swapper/120:39:541
317139950,5cyclictest0-21swapper/119:56:301
317139950,5cyclictest0-21swapper/119:46:591
317139950,5cyclictest0-21swapper/119:43:291
317139950,5cyclictest0-21swapper/119:15:171
317139950,5cyclictest0-21swapper/100:32:531
317139950,4cyclictest0-21swapper/122:49:561
317139950,4cyclictest0-21swapper/120:24:591
317139950,3cyclictest0-21swapper/120:10:011
317139950,2cyclictest0-21swapper/123:13:271
317139950,1cyclictest0-21swapper/119:35:191
317139950,0cyclictest0-21swapper/122:18:221
317029954,1cyclictest9-21ksoftirqd/019:45:010
317029953,1cyclictest5921-21/usr/sbin/munin20:30:200
317029953,1cyclictest31914-21/usr/sbin/munin19:10:160
14817250,1sleep121-21ksoftirqd/121:37:351
317249943,1cyclictest5970-21/usr/sbin/munin20:30:113
317249942,1cyclictest4907-21chrt19:20:053
317249942,1cyclictest27079-21cut20:05:163
317249940,2cyclictest22440-21apt-get21:05:123
317249940,1cyclictest0-21swapper/320:50:143
317139944,0cyclictest0-21swapper/119:26:501
317139941,1cyclictest0-21swapper/123:05:161
317139941,1cyclictest0-21swapper/120:50:121
317139940,3cyclictest0-21swapper/123:55:591
317139940,2cyclictest0-21swapper/122:10:071
317139940,2cyclictest0-21swapper/120:10:171
317139940,1cyclictest0-21swapper/123:15:101
317139940,1cyclictest0-21swapper/120:55:111
317139940,0cyclictest0-21swapper/120:03:451
317139940,0cyclictest0-21swapper/100:25:221
317139940,0cyclictest0-21swapper/100:05:211
317139930,2cyclictest0-21swapper/120:45:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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