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2026-09-11 - 09:51
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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 Fri Sep 11, 2026 00:45:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
104132208149,47sleep00-21swapper/019:08:410
103742200161,25sleep30-21swapper/319:08:113
103632200161,25sleep20-21swapper/219:08:032
102262200163,24sleep10-21swapper/119:06:171
309712690,0sleep20-21swapper/221:47:192
52042650,0sleep1111rcu_preempt21:56:191
207472590,0sleep10-21swapper/119:30:011
141152590,0sleep30-21swapper/321:25:013
24442570,0sleep30-21swapper/322:40:063
133082200,0sleep10-21swapper/122:10:011
1058599161,14cyclictest7810-21head21:15:160
1058599161,14cyclictest7810-21head21:15:150
1058599150,1cyclictest0-21swapper/020:50:170
1058599140,1cyclictest30143-21timerandwakeup21:45:200
1058599140,1cyclictest28832-21taskset20:55:120
1058599140,0cyclictest0-21swapper/020:45:110
1058599132,10cyclictest3258-21diskmemload00:20:300
1058599130,2cyclictest3258-21diskmemload21:50:180
1058599130,12cyclictest12324-21apt-get20:20:100
1058599130,12cyclictest0-21swapper/020:00:160
1058599130,1cyclictest23419-21dpkg23:10:010
1058599130,1cyclictest12435-21ssh22:07:060
1058599130,1cyclictest0-21swapper/023:20:180
1058599130,1cyclictest0-21swapper/022:35:000
1058599130,1cyclictest0-21swapper/021:05:010
1058599130,1cyclictest0-21swapper/019:30:140
1058599130,0cyclictest0-21swapper/021:30:170
10588991210,1cyclictest28-21ksoftirqd/220:00:002
1058599122,9cyclictest436-21ssh00:09:240
1058599122,9cyclictest3258-21diskmemload23:42:140
1058599122,9cyclictest3258-21diskmemload22:35:050
1058599122,9cyclictest3258-21diskmemload21:13:110
1058599121,10cyclictest14321-21head22:10:150
1058599120,1cyclictest3820-21ssh00:13:530
1058599120,1cyclictest3717-21fschecks_count21:55:130
1058599120,1cyclictest24145-21ssh21:37:490
1058599120,1cyclictest23480-21tail23:55:170
1058599120,1cyclictest0-21swapper/022:00:210
1058599120,1cyclictest0-21swapper/021:29:380
1058599120,0cyclictest3258-21diskmemload23:26:180
1058599120,0cyclictest3258-21diskmemload23:10:040
1058599120,0cyclictest3258-21diskmemload22:50:090
1058599120,0cyclictest3258-21diskmemload21:24:400
1058599120,0cyclictest3258-21diskmemload00:00:560
1058599120,0cyclictest25662-21apt-get19:40:100
1058599120,0cyclictest0-21swapper/022:45:140
1058899111,7cyclictest16791-21apt-get22:15:012
1058699118,2cyclictest0-21swapper/119:30:101
10585991110,1cyclictest9-21ksoftirqd/020:45:000
1058599110,1cyclictest3584-21grep22:40:180
1058599110,1cyclictest19589-21ssh00:35:190
1058599110,1cyclictest17243-21apt-get22:15:100
1058599110,1cyclictest0-21swapper/000:30:130
1058599110,0cyclictest3258-21diskmemload23:35:320
1058599110,0cyclictest3258-21diskmemload23:35:310
1058599110,0cyclictest3258-21diskmemload23:33:380
1058599110,0cyclictest3258-21diskmemload23:15:110
1058599110,0cyclictest3258-21diskmemload22:25:120
1058599110,0cyclictest3258-21diskmemload22:21:520
1058599110,0cyclictest0-21swapper/023:50:150
1058599110,0cyclictest0-21swapper/023:45:150
1058599110,0cyclictest0-21swapper/020:25:110
1058599110,0cyclictest0-21swapper/000:25:260
90222100,0sleep20-21swapper/222:48:552
189082100,0sleep33258-21diskmemload23:49:533
1059699101,7cyclictest35-21ksoftirqd/323:20:003
1059699100,5cyclictest20093-21apt-get23:05:133
1058899108,1cyclictest5846-21diskstats23:30:162
1058899100,6cyclictest3258-21diskmemload23:35:122
1058899100,6cyclictest3258-21diskmemload23:35:122
1058899100,4cyclictest0-21swapper/219:45:112
1058599101,0cyclictest3258-21diskmemload23:00:220
1058599100,10cyclictest0-21swapper/000:17:150
1058599100,1cyclictest30364-21taskset19:50:100
1058599100,1cyclictest19885-21df20:35:130
1058599100,1cyclictest19229-21fschecks_time19:25:130
1058599100,1cyclictest18195-21ntp_states20:30:180
1058599100,0cyclictest3258-21diskmemload21:40:090
1058599100,0cyclictest0-21swapper/022:57:380
1058599100,0cyclictest0-21swapper/022:57:380
17257290,0sleep10-21swapper/121:28:481
105969999,0cyclictest35-21ksoftirqd/300:25:133
105969998,1cyclictest35-21ksoftirqd/322:50:183
105969997,1cyclictest35-21ksoftirqd/322:25:133
105969990,6cyclictest27872-21python20:50:203
105889998,1cyclictest28-21ksoftirqd/221:20:112
105889991,7cyclictest14635-21gltestperf19:15:132
105889990,6cyclictest240-21systemd-journal20:30:012
105869999,0cyclictest0-21swapper/123:41:151
105859990,1cyclictest11918-21chrt20:18:140
105859990,0cyclictest0-21swapper/019:20:140
105859990,0cyclictest0-21swapper/019:20:130
105969987,1cyclictest35-21ksoftirqd/321:10:013
105969987,1cyclictest35-21ksoftirqd/300:15:013
105969986,1cyclictest35-21ksoftirqd/322:10:013
105969986,1cyclictest11301-21snmpd21:55:173
105969981,4cyclictest3258-21diskmemload22:55:203
105969981,4cyclictest3258-21diskmemload22:55:193
105889987,1cyclictest28-21ksoftirqd/200:24:162
105889986,1cyclictest61650irq/122-eno123:50:152
105889986,1cyclictest61650irq/122-eno121:55:162
105889986,1cyclictest61650irq/122-eno121:00:002
105889986,1cyclictest61650irq/122-eno120:50:222
105889986,1cyclictest61650irq/122-eno100:30:152
105889986,1cyclictest28-21ksoftirqd/222:21:372
105889986,1cyclictest1747-21ntpd22:35:582
105889986,1cyclictest1747-21ntpd00:00:582
105889986,1cyclictest11301-21snmpd00:39:592
105889984,2cyclictest294-21systemd-udevd20:09:072
105889984,2cyclictest240-21systemd-journal20:49:592
105889981,5cyclictest9672-21apt-get22:50:152
105889980,8cyclictest0-21swapper/223:48:362
105889980,6cyclictest0-21swapper/222:40:122
105859986,1cyclictest11301-21snmpd20:14:060
105859983,4cyclictest11301-21snmpd19:47:030
105859982,5cyclictest2293-21ntpq21:05:180
105859980,4cyclictest0-21swapper/019:35:110
105859980,1cyclictest240-21systemd-journal19:14:560
105859980,1cyclictest0-21swapper/019:15:140
105969976,1cyclictest35-21ksoftirqd/323:05:003
105969976,1cyclictest35-21ksoftirqd/321:49:593
105969976,1cyclictest35-21ksoftirqd/320:30:003
105969976,1cyclictest35-21ksoftirqd/319:30:013
105969976,1cyclictest21615-21perf00:40:003
105969975,1cyclictest11301-21snmpd21:32:173
105969975,1cyclictest11301-21snmpd20:40:463
105969975,1cyclictest11301-21snmpd19:11:443
105969974,1cyclictest35-21ksoftirqd/300:09:593
105969972,4cyclictest4789-21cron20:05:003
105969970,5cyclictest20270-21memory23:50:173
105969970,3cyclictest23781-21ssh23:10:113
105969970,1cyclictest0-21swapper/322:36:363
105889976,1cyclictest61650irq/122-eno122:55:372
105889976,1cyclictest61650irq/122-eno122:55:362
105889976,1cyclictest61650irq/122-eno122:25:162
105889976,1cyclictest61650irq/122-eno121:52:542
105889976,1cyclictest28-21ksoftirqd/221:11:102
105889976,0cyclictest61650irq/122-eno121:40:192
105889975,1cyclictest61650irq/122-eno123:25:122
105889975,1cyclictest61650irq/122-eno122:05:152
105889975,1cyclictest61650irq/122-eno120:35:142
105889975,1cyclictest5334-21if_eno100:15:142
105889975,1cyclictest11301-21snmpd22:30:492
105889975,1cyclictest11301-21snmpd22:00:442
105889974,1cyclictest28-21ksoftirqd/221:04:592
105889973,3cyclictest3258-21diskmemload21:30:142
105889973,2cyclictest240-21systemd-journal19:54:542
105889972,1cyclictest0-21swapper/221:25:112
105889971,4cyclictest61650irq/122-eno123:15:042
105889971,3cyclictest0-21swapper/223:55:182
105889970,2cyclictest0-21swapper/200:25:182
105889970,1cyclictest30991-21/usr/sbin/munin23:20:122
105869971,4cyclictest0-21swapper/122:55:131
105869971,4cyclictest0-21swapper/122:55:121
105869970,6cyclictest0-21swapper/122:28:301
105869970,6cyclictest0-21swapper/119:20:151
105869970,6cyclictest0-21swapper/119:20:141
105869970,6cyclictest0-21swapper/100:20:151
105859972,4cyclictest5793-21head20:05:150
105859971,1cyclictest0-21swapper/019:55:120
105969965,1cyclictest9045-21ssh21:16:053
105969965,1cyclictest9045-21ssh21:16:043
105969965,1cyclictest8017-21ssh22:45:393
105969965,1cyclictest7630-21ssh23:32:083
105969965,1cyclictest6911-21ssh00:17:333
105969965,1cyclictest35-21ksoftirqd/320:39:593
105969965,1cyclictest30625-21ssh22:33:273
105969965,1cyclictest27089-21ssh21:40:583
105969965,1cyclictest26537-21cat19:40:143
105969965,1cyclictest23917-21ntpq23:55:203
105969965,1cyclictest22807-21ssh22:21:153
105969965,1cyclictest1744-21ssh21:51:243
105969965,1cyclictest17073-21ssh00:31:383
105969964,1cyclictest11301-21snmpd19:59:293
105969964,1cyclictest10612-21ssh23:35:283
105969964,1cyclictest10612-21ssh23:35:283
105969964,0cyclictest3258-21diskmemload23:25:403
105969963,2cyclictest35-21ksoftirqd/322:12:263
105969963,1cyclictest240-21systemd-journal19:44:593
105969962,4cyclictest16007-21awk19:20:013
105969962,2cyclictest5344-21taskset21:10:423
105969962,2cyclictest24116-21apt-get20:45:123
105969961,3cyclictest26416-21/usr/sbin/munin00:00:163
105969960,6cyclictest16690-21ssh21:27:003
105969960,5cyclictest23699-21ssh21:36:213
105969960,4cyclictest0-21swapper/323:41:003
105969960,1cyclictest0-21swapper/322:15:163
105969960,0cyclictest3258-21diskmemload22:03:093
105889966,0cyclictest61650irq/122-eno123:10:082
105889966,0cyclictest61650irq/122-eno123:05:042
105889966,0cyclictest61650irq/122-eno123:00:182
105889966,0cyclictest61650irq/122-eno119:35:452
105889966,0cyclictest61650irq/122-eno119:20:142
105889966,0cyclictest61650irq/122-eno119:20:142
105889966,0cyclictest61650irq/122-eno100:05:032
105889965,1cyclictest61650irq/122-eno120:20:172
105889965,1cyclictest28-21ksoftirqd/222:15:002
105889965,0cyclictest61650irq/122-eno100:10:142
105889964,1cyclictest61650irq/122-eno123:40:162
105889964,1cyclictest61650irq/122-eno120:15:152
105889964,1cyclictest61650irq/122-eno120:10:012
105889964,1cyclictest18158-21ntpq20:30:162
105889963,1cyclictest240-21systemd-journal20:42:082
105889962,3cyclictest7222-21grep21:15:142
105889962,3cyclictest7222-21grep21:15:132
105889962,3cyclictest0-21swapper/219:30:112
105889960,6cyclictest0-21swapper/221:36:382
105889960,6cyclictest0-21swapper/219:27:222
105889960,6cyclictest0-21swapper/219:14:592
105889960,2cyclictest0-21swapper/221:05:122
105869965,1cyclictest0-21swapper/121:17:021
105869965,1cyclictest0-21swapper/121:17:011
105869960,6cyclictest0-21swapper/123:36:581
105869960,6cyclictest0-21swapper/123:36:571
105869960,6cyclictest0-21swapper/122:38:311
105869960,6cyclictest0-21swapper/122:18:381
105869960,6cyclictest0-21swapper/121:50:061
105869960,6cyclictest0-21swapper/121:45:381
105869960,6cyclictest0-21swapper/120:46:071
105869960,6cyclictest0-21swapper/120:35:191
105869960,6cyclictest0-21swapper/120:06:151
105869960,6cyclictest0-21swapper/119:59:391
105869960,6cyclictest0-21swapper/119:48:201
105869960,6cyclictest0-21swapper/119:11:251
105869960,6cyclictest0-21swapper/100:32:571
105869960,6cyclictest0-21swapper/100:15:191
105869960,5cyclictest203-21jbd2/sda2-800:35:071
105869960,5cyclictest0-21swapper/122:40:161
105869960,5cyclictest0-21swapper/100:05:361
105869960,4cyclictest0-21swapper/123:55:081
105869960,4cyclictest0-21swapper/123:20:111
105869960,4cyclictest0-21swapper/121:13:231
105869960,3cyclictest0-21swapper/120:15:211
105869960,2cyclictest0-21swapper/122:05:001
105869960,1cyclictest0-21swapper/123:30:131
105869960,1cyclictest0-21swapper/122:50:041
105869960,1cyclictest0-21swapper/122:32:301
105869960,1cyclictest0-21swapper/122:20:121
105969955,0cyclictest2400-21kworker/3:121:00:143
105969954,1cyclictest35-21ksoftirqd/320:10:003
105969954,1cyclictest35-21ksoftirqd/319:55:003
105969954,1cyclictest11301-21snmpd19:39:523
105969954,0cyclictest9942-21apt-get20:15:133
105969954,0cyclictest3258-21diskmemload00:20:023
105969953,1cyclictest35-21ksoftirqd/319:33:273
105969953,1cyclictest11301-21snmpd19:21:503
105969953,1cyclictest11301-21snmpd19:21:493
105969951,1cyclictest31571-21hddtemp_smartct23:20:153
105969950,5cyclictest0-21swapper/320:30:453
105969950,5cyclictest0-21swapper/320:23:473
105969950,1cyclictest28823-21apt-get20:55:113
105889952,1cyclictest4101-21switchtime20:00:212
105869955,0cyclictest0-21swapper/120:20:511
105869951,4cyclictest0-21swapper/121:00:141
105869951,1cyclictest0-21swapper/123:25:181
105869950,5cyclictest0-21swapper/123:10:301
105869950,5cyclictest0-21swapper/122:45:201
105869950,5cyclictest0-21swapper/120:26:371
105869950,5cyclictest0-21swapper/119:41:511
105869950,5cyclictest0-21swapper/119:35:151
105869950,5cyclictest0-21swapper/100:00:431
105869950,4cyclictest0-21swapper/123:51:351
105869950,4cyclictest0-21swapper/120:40:151
105869950,3cyclictest0-21swapper/123:18:521
105869950,3cyclictest0-21swapper/122:13:311
105869950,3cyclictest0-21swapper/121:34:591
105869950,3cyclictest0-21swapper/121:20:161
105869950,1cyclictest0-21swapper/123:05:251
105869950,1cyclictest0-21swapper/123:00:071
105869950,1cyclictest0-21swapper/121:35:471
105869950,1cyclictest0-21swapper/120:00:111
105869950,0cyclictest0-21swapper/121:05:201
105869950,0cyclictest0-21swapper/100:15:011
105969940,3cyclictest0-21swapper/320:05:143
105889940,1cyclictest240-21systemd-journal19:40:002
105869942,1cyclictest0-21swapper/123:45:441
105869940,2cyclictest0-21swapper/121:40:141
105869940,2cyclictest0-21swapper/120:58:171
105869940,2cyclictest0-21swapper/120:50:161
105869940,1cyclictest0-21swapper/120:10:101
105869940,0cyclictest0-21swapper/119:15:311
105869940,0cyclictest0-21swapper/100:25:191
105869931,1cyclictest0-21swapper/120:30:121
105869930,2cyclictest0-21swapper/119:50:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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