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2026-09-01 - 01:35
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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 Tue Sep 01, 2026 00:45:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14262220158,47sleep10-21swapper/119:06:121
14662219155,52sleep20-21swapper/219:06:412
15242216157,46sleep30-21swapper/319:07:283
16282201162,24sleep00-21swapper/019:08:490
185599219,0cyclictest0-21swapper/220:10:022
82292200,0sleep00-21swapper/022:13:520
1855991212,0cyclictest0-21swapper/219:40:192
185599119,1cyclictest28-21ksoftirqd/220:19:592
183399119,1cyclictest9-21ksoftirqd/022:05:210
183399119,1cyclictest9-21ksoftirqd/020:10:160
183399113,4cyclictest12976-21cat21:34:590
183399112,4cyclictest22843-21latency_hist00:10:010
183399110,9cyclictest26340-21apt-get22:40:110
183399110,5cyclictest19924-21perf21:45:010
1862991010,0cyclictest35-21ksoftirqd/300:10:013
185599109,1cyclictest28-21ksoftirqd/223:00:162
185599109,1cyclictest28-21ksoftirqd/222:10:002
183399109,1cyclictest9-21ksoftirqd/023:25:130
183399109,1cyclictest9-21ksoftirqd/023:00:160
133432100,0sleep30-21swapper/323:53:253
18629990,4cyclictest26658-21ssh22:40:133
18559998,1cyclictest28-21ksoftirqd/223:45:002
18559998,1cyclictest28-21ksoftirqd/220:40:002
18559991,5cyclictest561-21nscd22:30:172
18559990,9cyclictest0-21swapper/221:14:022
18339999,0cyclictest9-21ksoftirqd/020:35:200
18339998,1cyclictest9-21ksoftirqd/022:45:140
18339998,1cyclictest9-21ksoftirqd/021:30:000
18339998,1cyclictest9-21ksoftirqd/000:20:010
18339997,1cyclictest9-21ksoftirqd/021:45:520
18339997,1cyclictest9-21ksoftirqd/021:10:110
18339991,4cyclictest23961-21perf19:55:010
18339990,1cyclictest240-21systemd-journal21:19:590
18629987,1cyclictest1002-21nscd19:20:003
18629987,0cyclictest35-21ksoftirqd/300:40:003
18629986,1cyclictest35-21ksoftirqd/320:14:593
18629986,1cyclictest35-21ksoftirqd/319:46:153
18629986,1cyclictest1747-21ntpd22:15:593
18629981,4cyclictest0-21swapper/323:20:123
18559987,1cyclictest28-21ksoftirqd/222:15:132
18559987,1cyclictest28-21ksoftirqd/221:20:132
18559987,1cyclictest28-21ksoftirqd/221:05:002
18559987,1cyclictest28-21ksoftirqd/219:39:592
18559987,1cyclictest28-21ksoftirqd/200:24:592
18559987,1cyclictest28-21ksoftirqd/200:05:012
18559986,2cyclictest0-21swapper/222:02:392
18559986,1cyclictest28-21ksoftirqd/221:15:152
18559986,1cyclictest28-21ksoftirqd/219:24:592
18559986,1cyclictest28-21ksoftirqd/200:15:172
18559986,1cyclictest27334-21diskmemload21:30:182
18559980,8cyclictest0-21swapper/222:20:142
18339988,0cyclictest9-21ksoftirqd/021:05:130
18339987,1cyclictest9-21ksoftirqd/023:15:120
18339987,1cyclictest9-21ksoftirqd/022:00:090
18339987,1cyclictest9-21ksoftirqd/020:55:130
18339987,1cyclictest9-21ksoftirqd/020:55:130
18339987,1cyclictest9-21ksoftirqd/000:10:090
18339986,1cyclictest9-21ksoftirqd/022:40:010
18339986,1cyclictest7218-21cat20:25:160
18339984,3cyclictest1982-21sendmail-mta20:31:100
18339983,5cyclictest28568-21ssh21:55:210
18339982,2cyclictest27334-21diskmemload00:34:530
18339980,7cyclictest7148-21ssh23:45:110
18339980,7cyclictest4220-21ssh00:28:550
18339980,7cyclictest3910-21sed21:20:210
18339980,7cyclictest0-21swapper/021:35:160
18339980,4cyclictest240-21systemd-journal22:30:010
18339980,4cyclictest14262-21latency_hist19:35:000
18339980,1cyclictest31739-21ssh23:33:540
18629976,1cyclictest11301-21snmpd00:25:383
18629975,1cyclictest27334-21diskmemload21:30:183
18629975,1cyclictest11301-21snmpd21:07:153
18629974,1cyclictest27334-21diskmemload23:05:523
18629973,2cyclictest240-21systemd-journal19:35:003
18629972,3cyclictest2369-21kworker/u8:021:22:313
18629972,2cyclictest23634-21apt-get21:50:113
18629971,1cyclictest0-21swapper/300:15:143
18629970,4cyclictest9793-21/usr/sbin/munin19:25:133
18629970,2cyclictest0-21swapper/322:20:123
18629970,2cyclictest0-21swapper/319:35:133
18559977,0cyclictest28-21ksoftirqd/200:24:592
18559977,0cyclictest271rcuc/219:15:012
18559976,1cyclictest61650irq/122-eno123:15:392
18559976,1cyclictest61650irq/122-eno121:25:332
18559976,1cyclictest28-21ksoftirqd/223:50:122
18559976,1cyclictest16798-21ssh22:25:152
18559976,1cyclictest11301-21snmpd20:29:122
18559976,1cyclictest11301-21snmpd19:53:342
18559976,0cyclictest61650irq/122-eno123:25:112
18559976,0cyclictest61650irq/122-eno100:05:082
18559975,1cyclictest61650irq/122-eno122:45:142
18559975,1cyclictest61650irq/122-eno121:50:122
18559975,1cyclictest61650irq/122-eno100:35:202
18559975,1cyclictest28-21ksoftirqd/220:50:142
18559975,1cyclictest11301-21snmpd20:44:132
18559973,2cyclictest1815-21cyclictest21:47:132
18559970,6cyclictest1747-21ntpd23:35:372
18559970,5cyclictest20013-21kworker/2:023:05:152
18559970,1cyclictest0-21swapper/222:55:002
18479972,0cyclictest0-21swapper/100:00:331
18479970,6cyclictest0-21swapper/123:16:541
18479970,1cyclictest0-21swapper/121:35:281
18479970,1cyclictest0-21swapper/120:23:211
18339976,1cyclictest9-21ksoftirqd/023:10:120
18339976,1cyclictest9-21ksoftirqd/000:00:010
18339976,1cyclictest733-21sshd19:55:140
18339976,1cyclictest21892-21/usr/sbin/munin23:20:110
18339975,1cyclictest11301-21snmpd20:43:280
18339975,1cyclictest11301-21snmpd20:03:530
18339975,1cyclictest0-21swapper/020:50:150
18339973,1cyclictest240-21systemd-journal20:20:000
18339972,2cyclictest27334-21diskmemload22:30:110
18339971,6cyclictest0-21swapper/021:01:300
18339971,4cyclictest27334-21diskmemload22:16:470
18339970,6cyclictest3427-21ssh22:52:460
18339970,6cyclictest27334-21diskmemload23:55:120
18339970,6cyclictest27334-21diskmemload22:56:270
18339970,6cyclictest27334-21diskmemload22:20:120
18339970,6cyclictest17384-21diskstats19:40:140
18339970,6cyclictest15546-21latency_hist20:45:010
18339970,6cyclictest12646-21ssh23:51:060
18339970,6cyclictest11301-21snmpd21:53:000
18339970,6cyclictest0-21swapper/023:41:390
18339970,6cyclictest0-21swapper/023:35:150
18339970,1cyclictest101rcuc/000:20:130
18629965,1cyclictest8954-21ssh23:45:253
18629965,1cyclictest753-21ssh00:24:413
18629965,1cyclictest32714-21ssh22:01:203
18629965,1cyclictest32100-21ssh22:46:563
18629965,1cyclictest31694-21ssh23:33:453
18629965,1cyclictest29539-21ssh21:11:173
18629965,1cyclictest27784-21ssh23:27:223
18629965,1cyclictest20121-21ssh21:45:023
18629965,1cyclictest17920-21ssh22:26:173
18629965,1cyclictest11301-21snmpd23:55:163
18629965,1cyclictest11301-21snmpd23:35:343
18629965,1cyclictest11301-21snmpd22:37:273
18629965,1cyclictest11301-21snmpd20:52:223
18629965,1cyclictest11301-21snmpd19:24:223
18629964,1cyclictest9786-21ssh23:00:393
18629964,1cyclictest27334-21diskmemload22:32:573
18629964,1cyclictest2298-21cat20:15:163
18629964,1cyclictest11301-21snmpd22:51:143
18629964,1cyclictest11301-21snmpd20:38:213
18629964,1cyclictest11301-21snmpd19:53:233
18629964,1cyclictest11301-21snmpd19:13:423
18629963,1cyclictest31071-21cut21:15:123
18629963,1cyclictest27334-21diskmemload22:13:513
18629961,5cyclictest11301-21snmpd20:25:273
18629961,3cyclictest0-21swapper/321:26:383
18629961,2cyclictest27334-21diskmemload21:40:213
18629960,3cyclictest0-21swapper/300:30:133
18629960,2cyclictest0-21swapper/321:35:423
18629960,1cyclictest5100-21ssh23:40:193
18629960,1cyclictest3346-21taskset22:05:213
18629960,1cyclictest240-21systemd-journal20:44:543
18629960,1cyclictest0-21swapper/300:10:073
18559966,0cyclictest61650irq/122-eno123:45:112
18559966,0cyclictest61650irq/122-eno123:10:382
18559966,0cyclictest61650irq/122-eno122:55:152
18559966,0cyclictest61650irq/122-eno122:40:222
18559966,0cyclictest61650irq/122-eno122:10:112
18559966,0cyclictest61650irq/122-eno121:55:142
18559966,0cyclictest61650irq/122-eno121:40:122
18559966,0cyclictest61650irq/122-eno120:45:112
18559966,0cyclictest61650irq/122-eno120:00:382
18559965,1cyclictest61650irq/122-eno122:35:142
18559965,1cyclictest61650irq/122-eno120:05:182
18559965,1cyclictest28-21ksoftirqd/223:30:212
18559965,1cyclictest15326-21ntpq23:55:182
18559965,1cyclictest11301-21snmpd00:30:202
18559964,1cyclictest61650irq/122-eno100:10:092
18559961,3cyclictest0-21swapper/220:20:182
18559960,6cyclictest0-21swapper/223:20:262
18559960,5cyclictest0-21swapper/220:55:122
18559960,5cyclictest0-21swapper/220:55:112
18559960,3cyclictest0-21swapper/221:35:142
18559960,2cyclictest0-21swapper/219:55:132
18559960,2cyclictest0-21swapper/219:45:122
18559960,1cyclictest25617-21expr21:05:132
18559960,1cyclictest0-21swapper/219:15:012
18479964,2cyclictest0-21swapper/121:10:021
18479961,2cyclictest0-21swapper/123:25:111
18479961,2cyclictest0-21swapper/122:45:121
18479961,2cyclictest0-21swapper/121:50:121
18479960,6cyclictest0-21swapper/123:54:431
18479960,6cyclictest0-21swapper/123:10:061
18479960,6cyclictest0-21swapper/122:54:271
18479960,6cyclictest0-21swapper/122:25:091
18479960,6cyclictest0-21swapper/122:14:541
18479960,6cyclictest0-21swapper/122:04:121
18479960,6cyclictest0-21swapper/121:27:181
18479960,6cyclictest0-21swapper/120:35:151
18479960,6cyclictest0-21swapper/119:44:101
18479960,6cyclictest0-21swapper/119:13:401
18479960,6cyclictest0-21swapper/100:12:511
18479960,6cyclictest0-21swapper/100:07:501
18479960,5cyclictest0-21swapper/120:51:071
18479960,5cyclictest0-21swapper/100:20:441
18479960,4cyclictest0-21swapper/123:43:411
18479960,4cyclictest0-21swapper/122:07:121
18479960,4cyclictest0-21swapper/100:25:451
18479960,3cyclictest0-21swapper/123:49:441
18479960,3cyclictest0-21swapper/100:16:431
18479960,2cyclictest0-21swapper/120:10:011
18479960,2cyclictest0-21swapper/119:25:131
18479960,1cyclictest0-21swapper/122:20:151
18339965,1cyclictest9-21ksoftirqd/020:05:070
18339965,1cyclictest9-21ksoftirqd/019:20:130
18339965,1cyclictest11367-21ssh23:05:040
18339964,1cyclictest9-21ksoftirqd/019:15:150
18339960,6cyclictest7188-1kworker/u9:000:36:390
18339960,6cyclictest0-21swapper/019:35:190
18339960,6cyclictest0-21swapper/019:26:260
18339960,0cyclictest0-21swapper/019:14:510
18629954,1cyclictest14948-21aten_r1power_en23:10:123
18629953,1cyclictest27334-21diskmemload23:16:103
18629953,1cyclictest22285-21taskset20:56:033
18629953,1cyclictest22285-21taskset20:56:023
18629952,1cyclictest240-21systemd-journal20:34:553
18629951,1cyclictest22859-21/usr/sbin/munin21:00:223
18629951,0cyclictest0-21swapper/300:00:103
18629950,5cyclictest0-21swapper/319:58:273
18629950,4cyclictest4594-21fschecks_count20:20:143
18629950,4cyclictest29386-21expr20:05:133
18629950,2cyclictest29121-21chrt21:56:053
18629950,2cyclictest0-21swapper/322:55:133
18559955,0cyclictest61650irq/122-eno120:30:142
18559954,1cyclictest61650irq/122-eno119:25:142
18559951,0cyclictest12146-21apt-get19:30:112
18479955,0cyclictest0-21swapper/121:57:261
18479953,2cyclictest0-21swapper/120:30:181
18479953,1cyclictest0-21swapper/122:58:091
18479953,1cyclictest0-21swapper/121:45:181
18479951,3cyclictest0-21swapper/121:44:591
18479951,2cyclictest0-21swapper/123:55:161
18479951,2cyclictest0-21swapper/122:18:551
18479951,2cyclictest0-21swapper/119:45:111
18479951,1cyclictest0-21swapper/120:15:141
18479950,4cyclictest0-21swapper/121:34:141
18479950,3cyclictest0-21swapper/123:30:111
18479950,3cyclictest0-21swapper/122:41:041
18479950,3cyclictest0-21swapper/122:35:101
18479950,3cyclictest0-21swapper/120:40:191
18479950,2cyclictest0-21swapper/120:00:131
18479950,2cyclictest0-21swapper/100:36:371
18479950,1cyclictest0-21swapper/123:21:191
18479950,1cyclictest0-21swapper/123:02:051
18479950,1cyclictest0-21swapper/121:00:131
18479950,1cyclictest0-21swapper/120:25:191
18479950,1cyclictest0-21swapper/100:30:121
18479950,0cyclictest0-21swapper/123:38:211
18479950,0cyclictest0-21swapper/121:15:071
18339954,1cyclictest20377-21ntpq19:45:180
18339950,0cyclictest0-21swapper/020:20:160
18629942,1cyclictest26633-21aten2.4-expect20:00:143
18629941,1cyclictest16875-21apt-get19:40:113
18629940,2cyclictest0-21swapper/320:45:123
18479942,1cyclictest74412chrt19:20:111
18479941,1cyclictest0-21swapper/121:05:101
18479941,1cyclictest0-21swapper/120:45:121
18479940,3cyclictest0-21swapper/123:05:481
18479940,3cyclictest0-21swapper/120:55:181
18479940,3cyclictest0-21swapper/120:55:181
18479940,3cyclictest0-21swapper/119:34:541
18479940,3cyclictest0-21swapper/119:15:181
18479940,2cyclictest0-21swapper/120:05:161
18479940,2cyclictest0-21swapper/119:55:131
18479940,2cyclictest0-21swapper/119:35:121
18479940,1cyclictest0-21swapper/119:50:111
18479940,0cyclictest0-21swapper/122:30:121
18479940,0cyclictest0-21swapper/121:20:031
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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