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2026-08-19 - 07:29
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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 Wed Aug 19, 2026 00:45:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1828223960,12sleep121-21ksoftirqd/119:05:121
200652229156,24sleep00-21swapper/019:07:370
201102208175,21sleep30-21swapper/319:08:123
200672202162,26sleep20-21swapper/219:07:392
20363992018,1cyclictest0-21swapper/321:40:133
20355991919,0cyclictest28-21ksoftirqd/200:39:182
20355991918,1cyclictest28-21ksoftirqd/220:05:162
20355991818,0cyclictest28-21ksoftirqd/221:30:122
20355991818,0cyclictest28-21ksoftirqd/221:26:272
34242170,0sleep00-21swapper/022:25:330
2035599169,4cyclictest28-21ksoftirqd/220:25:122
20355991616,0cyclictest28-21ksoftirqd/222:08:562
20355991616,0cyclictest28-21ksoftirqd/200:03:062
284242150,0sleep10-21swapper/121:30:151
20363991512,2cyclictest1262-21/usr/sbin/munin20:45:183
20355991515,0cyclictest28-21ksoftirqd/223:40:552
20355991515,0cyclictest28-21ksoftirqd/222:48:042
20355991515,0cyclictest28-21ksoftirqd/221:55:322
20355991515,0cyclictest28-21ksoftirqd/221:20:322
20355991515,0cyclictest28-21ksoftirqd/221:19:172
20355991515,0cyclictest28-21ksoftirqd/200:12:302
20355991514,1cyclictest28-21ksoftirqd/223:12:032
20355991514,1cyclictest28-21ksoftirqd/223:12:022
20355991513,1cyclictest28-21ksoftirqd/223:08:562
2034899150,1cyclictest0-21swapper/120:00:181
2034899150,1cyclictest0-21swapper/100:25:001
2034399150,1cyclictest29341-21idleruntime-cro23:05:000
20363991412,1cyclictest32499-21ntp_states20:40:193
20363991412,1cyclictest21466-21sed00:25:003
20363991412,1cyclictest14568-21apt-get00:15:133
20363991412,1cyclictest0-21swapper/321:45:223
20355991414,0cyclictest28-21ksoftirqd/223:33:302
20355991414,0cyclictest28-21ksoftirqd/223:16:342
20355991414,0cyclictest28-21ksoftirqd/222:55:562
20355991414,0cyclictest28-21ksoftirqd/200:28:112
20355991414,0cyclictest28-21ksoftirqd/200:22:432
20355991414,0cyclictest28-21ksoftirqd/200:16:562
20355991413,1cyclictest28-21ksoftirqd/222:36:122
20355991413,1cyclictest28-21ksoftirqd/221:36:412
2034899140,1cyclictest0-21swapper/122:55:171
2034899140,1cyclictest0-21swapper/122:19:421
2034899140,1cyclictest0-21swapper/121:10:001
2034899140,1cyclictest0-21swapper/120:45:181
282322130,0sleep30-21swapper/322:15:193
20363991311,2cyclictest23786-21ntp_states22:55:173
20363991311,2cyclictest0-21swapper/319:15:003
20363991311,1cyclictest13024-21turbostat21:10:003
2035599139,3cyclictest2856-21fschecks_count21:40:132
20355991313,0cyclictest28-21ksoftirqd/223:57:082
20355991313,0cyclictest28-21ksoftirqd/223:57:082
20355991313,0cyclictest28-21ksoftirqd/223:29:192
20355991313,0cyclictest28-21ksoftirqd/223:20:572
20355991313,0cyclictest28-21ksoftirqd/222:50:392
20355991313,0cyclictest28-21ksoftirqd/222:28:462
20355991313,0cyclictest28-21ksoftirqd/221:51:022
20355991313,0cyclictest28-21ksoftirqd/219:40:142
20355991312,1cyclictest28-21ksoftirqd/222:40:162
20355991312,1cyclictest28-21ksoftirqd/219:20:002
20355991311,1cyclictest28-21ksoftirqd/223:00:212
20355991311,1cyclictest28-21ksoftirqd/222:05:002
20355991311,1cyclictest28-21ksoftirqd/220:25:002
2034899130,12cyclictest0-21swapper/121:41:201
2034899130,1cyclictest0-21swapper/121:50:191
2034899130,1cyclictest0-21swapper/121:47:041
2034899130,0cyclictest0-21swapper/123:20:131
2034899130,0cyclictest0-21swapper/120:15:161
2034399130,3cyclictest4089-21apt-get00:00:130
2036399129,2cyclictest26650-21fschecks_time23:45:153
2036399125,6cyclictest13043-21diskmemload22:20:163
20363991211,1cyclictest0-21swapper/322:27:293
20363991211,1cyclictest0-21swapper/321:20:153
20363991211,1cyclictest0-21swapper/321:15:113
20363991210,1cyclictest15582-21taskset21:58:093
20363991210,1cyclictest13043-21diskmemload22:10:143
20363991210,1cyclictest0-21swapper/323:34:173
20355991212,0cyclictest28-21ksoftirqd/222:32:112
20355991212,0cyclictest28-21ksoftirqd/222:21:562
20355991212,0cyclictest28-21ksoftirqd/222:17:412
20355991212,0cyclictest28-21ksoftirqd/219:20:132
20355991212,0cyclictest28-21ksoftirqd/200:32:072
20355991211,1cyclictest28-21ksoftirqd/223:45:172
20355991211,1cyclictest28-21ksoftirqd/220:00:002
20355991210,1cyclictest28-21ksoftirqd/223:50:112
20355991210,1cyclictest28-21ksoftirqd/223:35:112
20355991210,1cyclictest28-21ksoftirqd/221:45:232
20355991210,1cyclictest28-21ksoftirqd/221:05:002
20355991210,1cyclictest28-21ksoftirqd/219:40:002
20355991210,1cyclictest28-21ksoftirqd/219:15:002
20355991210,1cyclictest28-21ksoftirqd/200:05:212
2034899120,1cyclictest0-21swapper/123:04:331
2034899120,1cyclictest0-21swapper/100:30:131
2034899120,0cyclictest0-21swapper/123:38:001
2034899120,0cyclictest0-21swapper/123:32:471
2034899120,0cyclictest0-21swapper/119:45:221
2034899120,0cyclictest0-21swapper/119:15:211
2034899120,0cyclictest0-21swapper/100:39:161
2034399122,5cyclictest13058-21grep21:10:000
20343991210,1cyclictest16097-21sh21:13:460
2034399120,4cyclictest13043-21diskmemload23:40:420
2034399120,2cyclictest0-21swapper/022:35:010
2036399119,1cyclictest11002-21timerandwakeup21:50:193
2036399119,1cyclictest0-21swapper/300:05:213
2036399112,7cyclictest12985-21if_err_eno122:40:153
2036399112,1cyclictest13043-21diskmemload21:36:163
20363991110,1cyclictest13612-21ntpq20:00:183
20363991110,1cyclictest13043-21diskmemload23:20:133
20363991110,1cyclictest13043-21diskmemload23:00:173
20363991110,1cyclictest13043-21diskmemload21:33:013
20363991110,1cyclictest13043-21diskmemload21:25:143
20363991110,1cyclictest0-21swapper/323:10:153
20363991110,1cyclictest0-21swapper/323:10:153
20363991110,1cyclictest0-21swapper/323:06:223
20363991110,1cyclictest0-21swapper/322:48:193
20363991110,1cyclictest0-21swapper/322:38:143
20363991110,1cyclictest0-21swapper/321:00:193
20363991110,1cyclictest0-21swapper/319:25:093
20363991110,1cyclictest0-21swapper/319:15:153
2035599119,1cyclictest28-21ksoftirqd/222:10:222
2035599119,1cyclictest28-21ksoftirqd/220:45:142
2035599119,1cyclictest28-21ksoftirqd/220:35:162
2035599119,1cyclictest28-21ksoftirqd/220:35:162
2035599119,1cyclictest28-21ksoftirqd/220:15:222
2035599119,1cyclictest28-21ksoftirqd/220:10:162
20355991111,0cyclictest28-21ksoftirqd/221:10:212
20355991111,0cyclictest28-21ksoftirqd/219:25:112
20355991110,1cyclictest28-21ksoftirqd/221:05:192
20355991110,1cyclictest28-21ksoftirqd/220:55:202
20355991110,1cyclictest28-21ksoftirqd/220:55:002
20355991110,1cyclictest28-21ksoftirqd/220:40:132
20355991110,1cyclictest28-21ksoftirqd/220:05:002
20355991110,1cyclictest28-21ksoftirqd/219:50:162
20355991110,1cyclictest28-21ksoftirqd/219:45:132
20355991110,1cyclictest28-21ksoftirqd/219:35:002
2034899110,2cyclictest0-21swapper/123:47:301
2034899110,2cyclictest0-21swapper/122:52:201
2034899110,10cyclictest0-21swapper/121:59:061
2034899110,1cyclictest0-21swapper/123:25:101
2034899110,1cyclictest0-21swapper/121:35:131
2034899110,0cyclictest0-21swapper/123:09:341
2034899110,0cyclictest0-21swapper/122:37:541
2034899110,0cyclictest0-21swapper/121:22:501
2034899110,0cyclictest0-21swapper/100:07:071
2034399115,5cyclictest2869-21sed19:40:000
2034399112,2cyclictest13043-21diskmemload21:44:450
2034399112,2cyclictest13043-21diskmemload00:34:420
2034399112,2cyclictest0-21swapper/021:38:250
2034399111,3cyclictest13043-21diskmemload21:30:130
2034399111,3cyclictest0-21swapper/022:35:500
2034399111,1cyclictest27278-21uname19:20:200
2034399110,4cyclictest0-21swapper/022:58:300
2034399110,3cyclictest13043-21diskmemload23:32:090
2034399110,1cyclictest0-21swapper/022:10:210
2036399109,1cyclictest13043-21diskmemload00:36:563
2036399109,1cyclictest0-21swapper/323:55:203
2036399109,1cyclictest0-21swapper/323:55:203
2036399109,1cyclictest0-21swapper/322:34:583
2036399109,1cyclictest0-21swapper/322:05:143
2036399109,1cyclictest0-21swapper/320:15:163
2036399109,1cyclictest0-21swapper/319:45:223
2036399109,1cyclictest0-21swapper/300:28:473
2036399109,1cyclictest0-21swapper/300:00:063
2036399108,1cyclictest0-21swapper/300:30:133
2036399104,5cyclictest0-21swapper/323:35:153
2036399102,7cyclictest0-21swapper/321:10:153
2036399102,1cyclictest12092-21/usr/sbin/munin00:10:183
2036399101,8cyclictest341rcuc/323:50:443
2036399101,8cyclictest341rcuc/322:51:443
2035599109,1cyclictest28-21ksoftirqd/220:30:122
2034899101,8cyclictest0-21swapper/100:00:131
2034899100,9cyclictest0-21swapper/123:50:281
2034899100,10cyclictest0-21swapper/122:25:121
2034899100,1cyclictest0-21swapper/123:10:221
2034899100,1cyclictest0-21swapper/123:10:221
2034899100,1cyclictest0-21swapper/122:11:561
2034899100,1cyclictest0-21swapper/121:16:411
2034899100,1cyclictest0-21swapper/119:55:211
2034899100,1cyclictest0-21swapper/100:15:151
2034899100,0cyclictest0-21swapper/123:59:261
2034899100,0cyclictest0-21swapper/123:59:261
2034899100,0cyclictest0-21swapper/123:42:051
2034899100,0cyclictest0-21swapper/122:48:501
2034899100,0cyclictest0-21swapper/122:43:511
2034899100,0cyclictest0-21swapper/122:33:471
2034899100,0cyclictest0-21swapper/122:24:331
2034899100,0cyclictest0-21swapper/121:29:421
2034899100,0cyclictest0-21swapper/121:10:321
2034899100,0cyclictest0-21swapper/100:28:181
2034399109,1cyclictest9-21ksoftirqd/021:25:340
2034399108,1cyclictest9-21ksoftirqd/020:45:000
2034399105,4cyclictest20276-21ssh00:21:430
2034399105,4cyclictest11301-21snmpd20:50:590
2034399105,4cyclictest11301-21snmpd20:21:250
2034399104,1cyclictest31019-21grep23:05:190
2034399103,0cyclictest13043-21diskmemload23:27:130
2034399102,1cyclictest28581-21apt-get00:35:110
2034399102,1cyclictest13043-21diskmemload23:47:020
2034399102,0cyclictest13043-21diskmemload22:23:500
2034399101,5cyclictest27049-21ssh22:15:130
2034399100,9cyclictest13043-21diskmemload22:53:310
2034399100,2cyclictest240-21systemd-journal23:55:000
2034399100,1cyclictest7928-21cstates00:05:170
2034399100,1cyclictest240-21systemd-journal20:10:000
2034399100,1cyclictest0-21swapper/022:00:530
203639998,1cyclictest11396-21apt-get23:25:103
203639998,1cyclictest0-21swapper/323:40:153
203639998,1cyclictest0-21swapper/320:35:233
203639998,1cyclictest0-21swapper/320:35:233
203639991,8cyclictest341rcuc/323:17:423
203639991,8cyclictest341rcuc/322:00:283
203639991,8cyclictest341rcuc/320:56:423
203639991,8cyclictest341rcuc/320:10:123
203639991,8cyclictest341rcuc/320:05:243
203639991,8cyclictest341rcuc/319:50:203
203639991,8cyclictest341rcuc/319:34:323
203639991,0cyclictest35-21ksoftirqd/320:20:123
203639990,5cyclictest635-21apt-get19:35:123
203489990,9cyclictest0-21swapper/122:00:211
203489990,8cyclictest0-21swapper/119:32:001
203489990,2cyclictest0-21swapper/122:05:211
203489990,1cyclictest0-21swapper/120:20:211
203489990,1cyclictest0-21swapper/120:05:251
203489990,1cyclictest0-21swapper/119:40:151
203489990,1cyclictest0-21swapper/119:25:171
203439994,1cyclictest12910-21ssh00:10:350
203439993,1cyclictest693-21runrttasks00:25:130
203439991,2cyclictest240-21systemd-journal19:15:000
203439991,1cyclictest13043-21diskmemload23:55:430
203439991,1cyclictest13043-21diskmemload23:55:430
203439990,4cyclictest0-21swapper/023:10:200
203439990,4cyclictest0-21swapper/023:10:200
203439990,1cyclictest240-21systemd-journal23:40:000
203439990,1cyclictest240-21systemd-journal23:20:000
203439990,1cyclictest240-21systemd-journal21:50:000
203439990,1cyclictest240-21systemd-journal21:25:000
203439990,1cyclictest240-21systemd-journal21:20:000
203439990,1cyclictest240-21systemd-journal20:40:000
203439990,1cyclictest240-21systemd-journal20:40:000
203439990,1cyclictest240-21systemd-journal20:35:000
203439990,1cyclictest240-21systemd-journal20:00:000
203439990,1cyclictest240-21systemd-journal19:50:000
203439990,1cyclictest240-21systemd-journal00:20:000
203439990,1cyclictest13043-21diskmemload22:05:210
203639981,7cyclictest341rcuc/320:50:243
203639981,0cyclictest35-21ksoftirqd/320:25:183
203639981,0cyclictest341rcuc/320:30:183
203639980,8cyclictest35-21ksoftirqd/319:55:023
203639980,8cyclictest35-21ksoftirqd/319:40:063
203639980,8cyclictest35-21ksoftirqd/319:20:083
203489980,1cyclictest0-21swapper/119:52:371
203489980,1cyclictest0-21swapper/119:20:201
203439986,1cyclictest13290-21cstates21:55:140
203439986,1cyclictest11301-21snmpd20:01:070
203439984,1cyclictest11561-21ssh21:51:260
203439983,4cyclictest0-21swapper/020:15:200
203439983,1cyclictest24254-21/usr/sbin/munin20:25:170
203439983,0cyclictest13043-21diskmemload22:40:110
203439982,1cyclictest7811-21cut19:50:130
203439980,5cyclictest0-21swapper/022:49:360
203439980,4cyclictest7890-21/usr/sbin/munin23:20:110
203489971,1cyclictest0-21swapper/123:15:151
203489971,1cyclictest0-21swapper/120:40:001
203489971,1cyclictest0-21swapper/120:40:001
203489971,1cyclictest0-21swapper/100:10:151
203489970,6cyclictest0-21swapper/121:00:151
203489970,6cyclictest0-21swapper/120:59:591
203489970,6cyclictest0-21swapper/120:12:461
203489970,1cyclictest24602sleep119:36:131
203489970,1cyclictest0-21swapper/120:50:121
203489970,1cyclictest0-21swapper/120:40:141
203489970,1cyclictest0-21swapper/120:35:001
203489970,1cyclictest0-21swapper/119:13:291
203489960,1cyclictest0-21swapper/120:25:121
203439965,1cyclictest31851-21ntpq19:30:190
203439962,3cyclictest5980-21apt-get20:55:130
203439960,5cyclictest28384-21aten_r1power_cu19:25:090
203439960,0cyclictest0-21swapper/021:04:190
203439955,0cyclictest9-21ksoftirqd/020:45:440
203439953,1cyclictest11301-21snmpd19:15:540
203439950,5cyclictest0-21swapper/020:10:140
203439950,4cyclictest3115-21aten2.4-expect19:40:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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