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2026-09-17 - 01:30
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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 Thu Sep 17, 2026 00:45:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
188782222157,26sleep10-21swapper/119:05:031
208522202158,24sleep00-21swapper/019:08:130
208812200161,25sleep20-21swapper/219:08:352
207982199159,26sleep30-21swapper/319:07:323
29642570,0sleep10-21swapper/123:56:301
180972190,0sleep213931-21diskmemload21:15:142
21081991412,1cyclictest9-21ksoftirqd/000:10:000
2109099130,12cyclictest0-21swapper/123:50:111
21081991312,1cyclictest9-21ksoftirqd/020:55:010
21081991210,1cyclictest9-21ksoftirqd/022:35:000
2109899118,1cyclictest28-21ksoftirqd/220:15:002
2109899110,7cyclictest11301-21snmpd22:18:432
2108199119,1cyclictest9-21ksoftirqd/023:10:010
2108199119,1cyclictest9-21ksoftirqd/022:45:000
2108199113,4cyclictest9-21ksoftirqd/000:19:040
21081991110,1cyclictest9-21ksoftirqd/022:50:000
21081991110,1cyclictest9-21ksoftirqd/021:45:010
235282100,0sleep20-21swapper/200:25:242
2109899106,1cyclictest61650irq/122-eno121:27:052
2109899101,1cyclictest27471-21ssh22:14:382
2108199109,1cyclictest9-21ksoftirqd/020:24:590
2108199102,4cyclictest4122-21cat23:59:590
211059998,1cyclictest35-21ksoftirqd/300:20:003
211059998,1cyclictest35-21ksoftirqd/300:05:003
211059992,5cyclictest16945-1kworker/u9:000:20:243
211059990,2cyclictest0-21swapper/319:50:133
210989999,0cyclictest28-21ksoftirqd/221:30:182
210989991,4cyclictest29777-21apt-get23:50:102
210989990,7cyclictest0-21swapper/223:55:502
210819998,1cyclictest9-21ksoftirqd/023:50:140
210819998,1cyclictest9-21ksoftirqd/023:40:130
210819998,1cyclictest9-21ksoftirqd/023:10:000
210819998,1cyclictest9-21ksoftirqd/022:35:210
210819998,1cyclictest9-21ksoftirqd/021:35:000
210819998,1cyclictest9-21ksoftirqd/020:25:190
210819998,1cyclictest9-21ksoftirqd/000:05:000
210819998,0cyclictest9-21ksoftirqd/021:20:130
210819997,1cyclictest9-21ksoftirqd/023:25:120
210819997,1cyclictest9-21ksoftirqd/019:45:140
210819991,4cyclictest29566-21perf23:50:010
210819991,4cyclictest22586-21perf23:40:000
21273280,1sleep20-21swapper/223:35:522
211059987,1cyclictest35-21ksoftirqd/320:16:343
211059986,1cyclictest1747-21ntpd21:30:593
211059986,1cyclictest11301-21snmpd22:02:553
211059983,3cyclictest13931-21diskmemload21:55:493
211059981,5cyclictest702-1kworker/3:2H20:55:473
211059980,7cyclictest0-21swapper/320:10:113
210989988,0cyclictest0-21swapper/200:10:072
210989986,1cyclictest28-21ksoftirqd/221:10:112
210989986,1cyclictest11301-21snmpd23:17:232
210989981,6cyclictest0-21swapper/219:22:112
210989980,7cyclictest27509-21sh00:32:012
210989980,6cyclictest0-21swapper/200:09:312
210819987,1cyclictest9-21ksoftirqd/022:20:010
210819987,1cyclictest9-21ksoftirqd/021:15:200
210819987,1cyclictest9-21ksoftirqd/020:10:000
210819987,1cyclictest11301-21snmpd19:23:040
210819986,1cyclictest11301-21snmpd21:53:470
210819986,1cyclictest11301-21snmpd19:13:230
210819985,1cyclictest9-21ksoftirqd/020:45:010
210819983,1cyclictest7079-21/usr/sbin/munin20:55:130
210819981,1cyclictest20075-21ssh00:20:280
210819980,7cyclictest22922-21ntp_states00:25:160
210819980,4cyclictest26947-21latency_hist23:00:000
210819980,2cyclictest693-21runrttasks21:46:030
210819980,1cyclictest16051-21ssh21:10:500
210819980,1cyclictest0-21swapper/022:25:120
27212270,0sleep10-21swapper/122:13:501
22496275,1sleep228-21ksoftirqd/220:17:002
211059976,1cyclictest35-21ksoftirqd/323:55:123
211059976,1cyclictest11301-21snmpd23:38:203
211059975,1cyclictest35-21ksoftirqd/320:29:333
211059975,1cyclictest11301-21snmpd23:26:083
211059975,1cyclictest11301-21snmpd23:07:313
211059975,1cyclictest11301-21snmpd20:30:473
211059975,1cyclictest11301-21snmpd19:18:473
211059975,1cyclictest11301-21snmpd00:30:583
211059972,4cyclictest5103-21kworker/u8:123:30:043
211059972,2cyclictest4099-21ssh23:11:383
211059971,3cyclictest13931-21diskmemload23:15:043
211059971,3cyclictest13931-21diskmemload22:35:113
211059971,3cyclictest0-21swapper/323:21:293
211059970,5cyclictest0-21swapper/323:46:393
211059970,4cyclictest0-21swapper/321:11:563
211059970,3cyclictest0-21swapper/321:50:493
211059970,1cyclictest0-21swapper/321:17:533
210989976,1cyclictest61650irq/122-eno123:25:182
210989976,1cyclictest61650irq/122-eno122:50:112
210989976,1cyclictest61650irq/122-eno122:46:562
210989976,1cyclictest61650irq/122-eno121:56:422
210989976,1cyclictest61650irq/122-eno121:35:192
210989976,1cyclictest61650irq/122-eno119:25:122
210989976,1cyclictest2841-21cat23:10:182
210989976,1cyclictest11301-21snmpd00:16:092
210989976,0cyclictest61650irq/122-eno100:35:122
210989975,1cyclictest61650irq/122-eno121:05:222
210989975,1cyclictest6139-21ssh00:00:262
210989975,1cyclictest559-21cron20:50:002
210989975,1cyclictest23727-21cat23:40:162
210989975,1cyclictest21885-21ntpq22:05:172
210989975,1cyclictest11301-21snmpd23:45:412
210989975,1cyclictest11301-21snmpd22:28:392
210989975,1cyclictest11301-21snmpd22:00:112
210989974,0cyclictest13931-21diskmemload21:40:172
210989973,3cyclictest22259-21cat21:20:152
210989970,1cyclictest23716-21cat19:15:002
210989970,1cyclictest0-21swapper/220:25:182
210909971,6cyclictest0-21swapper/122:51:041
210909971,6cyclictest0-21swapper/119:11:031
210909970,4cyclictest0-21swapper/123:18:151
210909970,1cyclictest0-21swapper/122:24:481
210819976,1cyclictest9-21ksoftirqd/021:35:140
210819976,1cyclictest25642-21ssh22:10:180
210819975,1cyclictest9-21ksoftirqd/019:54:330
210819975,1cyclictest26494-21cat19:20:000
210819975,1cyclictest15622-21ssh21:55:350
210819975,1cyclictest11301-21snmpd20:14:470
210819972,5cyclictest13931-21diskmemload23:31:000
210819972,2cyclictest26345-21needreboot00:30:190
210819970,7cyclictest0-21swapper/021:25:150
210819970,6cyclictest0-21swapper/022:50:170
210819970,6cyclictest0-21swapper/022:05:130
210819970,4cyclictest13931-21diskmemload23:24:060
210819970,1cyclictest3309-21chrt19:38:120
210819970,1cyclictest28552-21mailstats23:00:180
210819970,1cyclictest1414-21ssh22:22:380
210819970,1cyclictest0-21swapper/023:15:090
210819970,1cyclictest0-21swapper/022:00:160
210819970,1cyclictest0-21swapper/000:35:110
210819970,1cyclictest0-21swapper/000:10:120
211059965,1cyclictest7164-21cat19:45:163
211059965,1cyclictest35-21ksoftirqd/321:05:003
211059965,1cyclictest35-21ksoftirqd/320:45:013
211059965,1cyclictest31124-21ssh00:37:273
211059965,1cyclictest29340-21ssh22:15:233
211059965,1cyclictest2596-21ssh21:38:343
211059965,1cyclictest2513-21ntpq19:35:173
211059965,1cyclictest18630-21ssh22:45:443
211059965,1cyclictest11301-21snmpd23:41:553
211059964,1cyclictest4472-21turbostat.cron20:49:563
211059964,1cyclictest3286-21ssh21:40:023
211059964,1cyclictest32177-21cron20:39:593
211059964,1cyclictest25381-21grep22:55:223
211059964,1cyclictest11301-21snmpd20:07:193
211059964,1cyclictest11301-21snmpd19:58:183
211059964,1cyclictest11301-21snmpd19:40:273
211059963,1cyclictest240-21systemd-journal21:05:003
211059963,1cyclictest240-21systemd-journal20:05:003
211059962,3cyclictest13931-21diskmemload00:25:183
211059962,2cyclictest21010-21gltestperf22:50:173
211059962,1cyclictest25465-21diskstats21:25:143
211059961,2cyclictest13931-21diskmemload23:00:483
211059960,4cyclictest0-21swapper/323:50:143
211059960,4cyclictest0-21swapper/322:25:213
211059960,3cyclictest13931-21diskmemload22:40:153
211059960,3cyclictest0-21swapper/322:31:113
211059960,3cyclictest0-21swapper/322:20:383
211059960,3cyclictest0-21swapper/322:11:193
211059960,3cyclictest0-21swapper/321:45:163
211059960,2cyclictest0-21swapper/322:08:133
211059960,2cyclictest0-21swapper/300:11:583
210989966,0cyclictest61650irq/122-eno122:55:342
210989966,0cyclictest61650irq/122-eno122:40:122
210989966,0cyclictest61650irq/122-eno122:35:332
210989966,0cyclictest61650irq/122-eno122:20:492
210989966,0cyclictest61650irq/122-eno120:36:532
210989966,0cyclictest61650irq/122-eno120:20:202
210989966,0cyclictest61650irq/122-eno119:54:262
210989966,0cyclictest61650irq/122-eno119:16:222
210989966,0cyclictest61650irq/122-eno100:20:142
210989965,1cyclictest61650irq/122-eno123:30:132
210989965,1cyclictest61650irq/122-eno123:23:192
210989965,1cyclictest61650irq/122-eno123:05:182
210989965,1cyclictest61650irq/122-eno122:30:012
210989965,1cyclictest5858-21ntpq20:50:182
210989965,1cyclictest28-21ksoftirqd/219:45:122
210989964,1cyclictest61650irq/122-eno121:00:142
210989964,1cyclictest61650irq/122-eno119:30:142
210989961,3cyclictest7525-21/usr/sbin/munin21:45:132
210989961,2cyclictest10282-21apt-get21:50:112
210989960,3cyclictest11645-21cut19:55:142
210989960,1cyclictest240-21systemd-journal20:34:592
210989960,1cyclictest0-21swapper/223:00:112
210909966,0cyclictest0-21swapper/100:27:541
210909965,1cyclictest0-21swapper/120:25:581
210909961,2cyclictest0-21swapper/123:20:111
210909961,2cyclictest0-21swapper/123:03:361
210909960,6cyclictest0-21swapper/122:32:531
210909960,6cyclictest0-21swapper/121:57:471
210909960,6cyclictest0-21swapper/121:39:341
210909960,6cyclictest0-21swapper/121:29:071
210909960,6cyclictest0-21swapper/121:20:181
210909960,6cyclictest0-21swapper/121:08:451
210909960,6cyclictest0-21swapper/120:15:181
210909960,6cyclictest0-21swapper/119:26:181
210909960,5cyclictest0-21swapper/122:15:171
210909960,5cyclictest0-21swapper/121:19:071
210909960,3cyclictest0-21swapper/123:06:041
210909960,3cyclictest0-21swapper/121:30:151
210909960,3cyclictest0-21swapper/100:15:101
210909960,2cyclictest0-21swapper/123:30:131
210909960,1cyclictest0-21swapper/123:46:581
210909960,1cyclictest0-21swapper/122:38:121
210909960,1cyclictest0-21swapper/119:30:161
210819965,1cyclictest9-21ksoftirqd/020:01:190
210819965,1cyclictest11301-21snmpd19:56:490
210819964,1cyclictest9-21ksoftirqd/020:30:130
210819962,3cyclictest29829-21gltestperf19:25:130
210819961,2cyclictest0-21swapper/021:05:130
210819960,0cyclictest0-21swapper/020:15:000
4517250,1sleep10-21swapper/123:13:011
211059953,1cyclictest13931-21diskmemload21:22:193
211059952,0cyclictest32537-21ntp_kernel_err19:30:173
211059951,2cyclictest9011-21ntp_states00:05:213
211059951,1cyclictest4729-21apt-get20:50:113
211059951,1cyclictest21280-21apt-get19:10:103
211059950,2cyclictest0-21swapper/319:20:133
211059950,1cyclictest0-21swapper/319:25:083
210989955,0cyclictest61650irq/122-eno120:55:162
210989955,0cyclictest61650irq/122-eno119:40:172
210989953,1cyclictest15909-21chrt20:05:092
210989953,1cyclictest0-21swapper/219:35:202
210989952,2cyclictest13642-21cpuspeed_turbos20:00:132
210989950,1cyclictest0-21swapper/220:40:112
210909951,2cyclictest0-21swapper/123:25:121
210909951,2cyclictest0-21swapper/121:00:141
210909951,2cyclictest0-21swapper/120:05:171
210909951,1cyclictest0-21swapper/122:45:111
210909950,5cyclictest0-21swapper/122:55:171
210909950,5cyclictest0-21swapper/121:45:531
210909950,5cyclictest0-21swapper/121:41:091
210909950,5cyclictest0-21swapper/119:50:171
210909950,5cyclictest0-21swapper/119:20:271
210909950,5cyclictest0-21swapper/100:11:011
210909950,4cyclictest0-21swapper/122:01:271
210909950,2cyclictest0-21swapper/121:10:151
210909950,1cyclictest0-21swapper/122:42:281
210909950,1cyclictest0-21swapper/119:55:111
210909950,1cyclictest0-21swapper/119:45:111
210909950,0cyclictest0-21swapper/121:50:091
210909950,0cyclictest0-21swapper/120:02:331
210909950,0cyclictest0-21swapper/100:34:581
210909950,0cyclictest0-21swapper/100:02:291
210819954,1cyclictest9-21ksoftirqd/020:35:000
210819950,5cyclictest0-21swapper/020:45:130
210819950,5cyclictest0-21swapper/019:30:190
210819950,0cyclictest0-21swapper/021:00:170
210819950,0cyclictest0-21swapper/019:40:100
211059943,1cyclictest24162-21ntp_states20:20:183
210909944,0cyclictest0-21swapper/123:35:581
210909943,1cyclictest31893-21chrt20:36:251
210909941,1cyclictest0-21swapper/122:05:151
210909941,1cyclictest0-21swapper/100:35:011
210909940,4cyclictest0-21swapper/122:25:131
210909940,4cyclictest0-21swapper/120:40:171
210909940,4cyclictest0-21swapper/119:44:031
210909940,2cyclictest0-21swapper/120:55:201
210909940,2cyclictest0-21swapper/120:30:161
210909940,2cyclictest0-21swapper/119:15:151
210909940,2cyclictest0-21swapper/100:05:211
210909940,1cyclictest0-21swapper/100:20:121
210909940,0cyclictest0-21swapper/123:40:041
210909940,0cyclictest0-21swapper/120:45:201
210909931,1cyclictest0-21swapper/120:20:121
210909931,1cyclictest0-21swapper/119:35:111
210909930,2cyclictest0-21swapper/120:50:111
210909930,1cyclictest0-21swapper/120:10:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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