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2026-03-13 - 21:44
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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 Mar 13, 2026 12:45:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
145262200156,21sleep30-21swapper/307:09:563
144782200160,26sleep20-21swapper/207:09:192
144712200162,24sleep00-21swapper/007:09:130
144102196160,23sleep10-21swapper/107:08:251
75162690,0sleep00-21swapper/011:12:340
246932250,1sleep228-21ksoftirqd/207:27:202
219162190,0sleep20-21swapper/210:08:002
14644991412,1cyclictest28-21ksoftirqd/208:55:002
14644991311,1cyclictest28-21ksoftirqd/210:50:002
14644991311,1cyclictest28-21ksoftirqd/208:30:002
1462799133,5cyclictest20833-21latency_hist08:30:000
14653991212,0cyclictest0-21swapper/309:53:223
14644991211,1cyclictest28-21ksoftirqd/209:52:382
14644991210,1cyclictest28-21ksoftirqd/211:30:192
14644991210,1cyclictest28-21ksoftirqd/209:40:002
14644991111,0cyclictest28-21ksoftirqd/212:10:172
14644991110,1cyclictest28-21ksoftirqd/212:35:152
1462799110,3cyclictest0-21swapper/010:15:100
1462799110,10cyclictest0-21swapper/012:20:160
1465399101,5cyclictest35-21ksoftirqd/311:00:113
1464499109,1cyclictest28-21ksoftirqd/212:05:162
146539998,1cyclictest35-21ksoftirqd/308:50:003
146539998,1cyclictest35-21ksoftirqd/307:23:583
146539998,1cyclictest1747-21ntpd09:20:273
146449999,0cyclictest28-21ksoftirqd/209:15:152
146449998,1cyclictest28-21ksoftirqd/212:25:142
146449998,1cyclictest28-21ksoftirqd/211:50:142
146449998,1cyclictest28-21ksoftirqd/211:47:162
146449998,1cyclictest28-21ksoftirqd/211:05:002
146449998,1cyclictest28-21ksoftirqd/210:45:002
146449998,1cyclictest28-21ksoftirqd/209:57:492
146449998,1cyclictest28-21ksoftirqd/209:31:112
146449998,1cyclictest28-21ksoftirqd/208:55:182
146449998,1cyclictest28-21ksoftirqd/207:15:002
146449998,0cyclictest28-21ksoftirqd/211:05:192
146369990,9cyclictest0-21swapper/110:58:311
146279990,4cyclictest25987-21perf08:40:000
146539987,1cyclictest35-21ksoftirqd/309:10:003
146539987,1cyclictest35-21ksoftirqd/308:45:003
146539987,1cyclictest1747-21ntpd11:59:253
146539987,1cyclictest1747-21ntpd10:51:573
146539986,1cyclictest707-21snmpd12:29:063
146539986,1cyclictest707-21snmpd11:09:313
146539986,1cyclictest707-21snmpd08:28:273
146539986,1cyclictest707-21snmpd08:06:413
146539986,1cyclictest35-21ksoftirqd/308:57:203
146539986,1cyclictest35-21ksoftirqd/307:15:003
146539984,3cyclictest1747-21ntpd08:22:023
146539980,5cyclictest0-21swapper/309:18:583
146449988,0cyclictest28-21ksoftirqd/211:56:332
146449988,0cyclictest28-21ksoftirqd/210:13:332
146449988,0cyclictest28-21ksoftirqd/208:10:122
146449987,1cyclictest28-21ksoftirqd/211:40:122
146449987,1cyclictest28-21ksoftirqd/211:25:142
146449987,1cyclictest28-21ksoftirqd/211:23:092
146449987,1cyclictest28-21ksoftirqd/210:30:212
146449987,1cyclictest28-21ksoftirqd/209:40:122
146449987,1cyclictest28-21ksoftirqd/209:25:132
146449987,1cyclictest28-21ksoftirqd/209:10:122
146449987,1cyclictest28-21ksoftirqd/208:35:002
146449987,1cyclictest28-21ksoftirqd/208:30:182
146449987,1cyclictest28-21ksoftirqd/207:50:002
146449986,1cyclictest707-21snmpd10:51:132
146449986,1cyclictest61650irq/122-eno112:15:132
146449986,1cyclictest28-21ksoftirqd/211:35:102
146449986,1cyclictest28-21ksoftirqd/210:00:112
146449986,1cyclictest28-21ksoftirqd/209:45:162
146449986,1cyclictest28-21ksoftirqd/209:25:002
146449986,1cyclictest28-21ksoftirqd/208:18:222
146449980,5cyclictest0-21swapper/210:38:202
146369980,6cyclictest0-21swapper/107:30:091
146279987,1cyclictest9-21ksoftirqd/011:15:230
146279987,1cyclictest8076-21diskmemload12:03:170
146279986,1cyclictest707-21snmpd11:57:180
146279986,1cyclictest707-21snmpd11:07:460
146279986,1cyclictest707-21snmpd09:25:290
146279986,1cyclictest707-21snmpd09:18:190
146279986,1cyclictest707-21snmpd08:53:100
146279986,1cyclictest707-21snmpd08:06:320
146279986,1cyclictest585-21rs:main0
146279981,6cyclictest16386-21rm10:42:160
146279981,4cyclictest16941-21latency_hist07:15:000
146279980,7cyclictest2273-21aten2.4-expect10:25:100
146279980,7cyclictest16074-21fschecks_time12:05:130
146279980,5cyclictest8076-21diskmemload10:05:370
146539976,1cyclictest35-21ksoftirqd/307:15:013
146539975,2cyclictest0-21swapper/310:26:153
146539975,1cyclictest707-21snmpd12:38:313
146539975,1cyclictest707-21snmpd12:02:183
146539975,1cyclictest707-21snmpd11:48:173
146539975,1cyclictest707-21snmpd10:10:153
146539975,1cyclictest707-21snmpd09:02:523
146539975,1cyclictest35-21ksoftirqd/311:15:193
146539975,1cyclictest35-21ksoftirqd/310:25:003
146539975,1cyclictest3223-21cat12:30:143
146539975,1cyclictest23146-21ssh09:27:533
146539973,3cyclictest707-21snmpd10:37:043
146539972,3cyclictest21479-21needreboot11:30:153
146539970,5cyclictest8076-21diskmemload10:00:113
146539970,4cyclictest707-21snmpd11:10:163
146539970,3cyclictest0-21swapper/308:10:113
146539970,1cyclictest0-21swapper/309:57:193
146449977,0cyclictest28-21ksoftirqd/212:20:152
146449977,0cyclictest28-21ksoftirqd/210:20:112
146449976,1cyclictest61650irq/122-eno110:17:012
146449976,1cyclictest61650irq/122-eno108:40:172
146449976,1cyclictest61650irq/122-eno107:40:112
146449976,1cyclictest28-21ksoftirqd/211:15:192
146449976,1cyclictest28-21ksoftirqd/210:26:532
146449975,1cyclictest707-21snmpd11:12:222
146449975,1cyclictest61650irq/122-eno107:20:092
146449975,1cyclictest29758-21kworker/2:207:55:182
146449975,1cyclictest28-21ksoftirqd/207:15:012
146449971,4cyclictest11460-21apt-get12:00:102
146449970,6cyclictest3701-21/usr/sbin/munin09:00:122
146449970,4cyclictest0-21swapper/210:55:062
146449970,2cyclictest0-21swapper/207:35:142
146449970,1cyclictest0-21swapper/208:47:512
146449970,1cyclictest0-21swapper/208:23:182
146369971,6cyclictest0-21swapper/112:21:541
146369971,2cyclictest0-21swapper/111:55:191
146369971,1cyclictest0-21swapper/110:44:161
146369970,5cyclictest0-21swapper/112:03:291
146369970,4cyclictest0-21swapper/110:09:161
146369970,2cyclictest0-21swapper/112:30:121
146369970,1cyclictest0-21swapper/111:11:281
146369970,1cyclictest0-21swapper/110:01:451
146279975,1cyclictest9-21ksoftirqd/008:40:100
146279975,1cyclictest707-21snmpd09:50:320
146279975,1cyclictest707-21snmpd07:47:290
146279975,1cyclictest28215-21ssh09:35:090
146279975,1cyclictest0-21swapper/009:45:150
146279972,4cyclictest8308-21wc08:00:180
146279972,4cyclictest3481-21ntpq12:30:160
146279971,6cyclictest0-21swapper/008:33:090
146279971,6cyclictest0-21swapper/007:37:250
146279971,6cyclictest0-21swapper/007:29:040
146279970,6cyclictest32201-21ssh11:45:060
146279970,6cyclictest32105-21ssh11:02:240
146279970,6cyclictest22298-21fschecks_time10:50:130
146279970,6cyclictest22269-21ssh11:30:340
146279970,6cyclictest16952-21apt-get07:15:010
146279970,6cyclictest14470-21ssh11:20:280
146279970,6cyclictest13923-21ssh09:57:300
146279970,6cyclictest12607-21missed_timers08:10:160
146279970,6cyclictest0-21swapper/012:10:060
146279970,6cyclictest0-21swapper/011:50:140
146279970,6cyclictest0-21swapper/010:35:140
146279970,6cyclictest0-21swapper/010:30:160
146279970,6cyclictest0-21swapper/010:20:190
146279970,6cyclictest0-21swapper/010:10:120
146279970,6cyclictest0-21swapper/009:20:130
146279970,2cyclictest31623-21awk07:40:200
146279970,2cyclictest18926-21ntp_states10:45:170
146279970,1cyclictest26910-21swap10:55:190
146279970,1cyclictest16509-21ssh11:25:110
146279970,1cyclictest1475-21ssh12:28:330
146279970,1cyclictest0-21swapper/012:35:150
146279970,1cyclictest0-21swapper/011:42:410
146279970,1cyclictest0-21swapper/010:00:100
146279970,1cyclictest0-21swapper/009:30:150
146539965,1cyclictest8855-21ssh10:32:523
146539965,1cyclictest707-21snmpd07:53:143
146539965,1cyclictest6142-21ssh11:52:053
146539965,1cyclictest5939-21ssh09:46:513
146539965,1cyclictest35-21ksoftirqd/308:05:013
146539965,1cyclictest35-21ksoftirqd/307:41:413
146539965,1cyclictest35-21ksoftirqd/307:40:003
146539965,1cyclictest30320-21ssh09:36:083
146539965,1cyclictest29020-21ssh12:20:523
146539965,1cyclictest27261-21ssh10:55:233
146539965,1cyclictest26177-21ssh11:35:373
146539965,1cyclictest21626-21ssh10:07:153
146539965,1cyclictest18742-21ssh12:09:283
146539965,1cyclictest17247-21ssh10:44:313
146539965,1cyclictest15460-21ssh11:23:053
146539965,1cyclictest10449-21ssh09:11:353
146539964,1cyclictest8076-21diskmemload11:26:013
146539964,1cyclictest707-21snmpd08:50:093
146539964,1cyclictest26449-21ssh09:31:083
146539964,0cyclictest8076-21diskmemload12:17:223
146539964,0cyclictest8076-21diskmemload10:16:423
146539960,6cyclictest25487-21kworker/u8:111:42:553
146539960,6cyclictest0-21swapper/312:11:003
146539960,4cyclictest23516-21cat08:35:003
146539960,4cyclictest0-21swapper/309:40:173
146539960,1cyclictest0-21swapper/310:45:133
146449966,0cyclictest61650irq/122-eno107:32:542
146449964,1cyclictest28-21ksoftirqd/212:30:022
146449964,1cyclictest28-21ksoftirqd/209:05:122
146449964,1cyclictest28-21ksoftirqd/208:05:172
146449964,1cyclictest28-21ksoftirqd/208:00:112
146449960,1cyclictest0-21swapper/207:50:102
146369965,1cyclictest0-21swapper/110:23:541
146369961,3cyclictest0-21swapper/107:25:151
146369960,6cyclictest0-21swapper/112:37:451
146369960,6cyclictest0-21swapper/110:15:241
146369960,6cyclictest0-21swapper/109:55:151
146369960,6cyclictest0-21swapper/109:51:531
146369960,6cyclictest0-21swapper/109:10:581
146369960,6cyclictest0-21swapper/107:49:131
146369960,6cyclictest0-21swapper/107:42:461
146369960,5cyclictest0-21swapper/107:36:221
146369960,4cyclictest0-21swapper/111:50:211
146369960,4cyclictest0-21swapper/110:35:151
146369960,3cyclictest0-21swapper/112:11:301
146369960,2cyclictest0-21swapper/110:50:471
146369960,2cyclictest0-21swapper/110:45:401
146369960,2cyclictest0-21swapper/110:33:111
146369960,2cyclictest0-21swapper/109:30:201
146369960,1cyclictest0-21swapper/111:38:121
146369960,1cyclictest0-21swapper/111:28:471
146369960,1cyclictest0-21swapper/109:45:511
146369960,1cyclictest0-21swapper/109:37:561
146369960,1cyclictest0-21swapper/109:28:531
146369960,1cyclictest0-21swapper/108:03:561
146369960,1cyclictest0-21swapper/107:23:521
146279965,1cyclictest27480-1kworker/u9:009:10:450
146279965,1cyclictest0-21swapper/011:35:120
146279964,1cyclictest707-21snmpd09:00:220
146279964,1cyclictest324-21fschecks_time09:40:130
146279962,1cyclictest21599-21ntp_states07:20:150
146279961,4cyclictest25209-21telnet07:30:100
146279960,6cyclictest0-21swapper/007:52:190
146279960,0cyclictest0-21swapper/012:15:120
146279960,0cyclictest0-21swapper/009:07:240
146279960,0cyclictest0-21swapper/008:17:340
146539953,1cyclictest841-21cat07:45:163
146539953,1cyclictest15821-21taskset08:16:543
146539950,5cyclictest0-21swapper/307:25:253
146539950,2cyclictest240-21systemd-journal08:00:003
146369955,0cyclictest0-21swapper/112:26:251
146369955,0cyclictest0-21swapper/112:05:401
146369951,1cyclictest0-21swapper/111:40:141
146369951,0cyclictest0-21swapper/108:36:031
146369950,5cyclictest0-21swapper/108:44:121
146369950,5cyclictest0-21swapper/108:30:191
146369950,5cyclictest0-21swapper/107:15:141
146369950,3cyclictest0-21swapper/112:18:341
146369950,3cyclictest0-21swapper/111:30:101
146369950,3cyclictest0-21swapper/109:22:161
146369950,2cyclictest0-21swapper/111:45:471
146369950,2cyclictest0-21swapper/111:23:211
146369950,2cyclictest0-21swapper/111:00:011
146369950,2cyclictest0-21swapper/110:11:041
146369950,2cyclictest0-21swapper/109:41:261
146369950,1cyclictest0-21swapper/111:06:121
146369950,1cyclictest0-21swapper/109:15:111
146369950,1cyclictest0-21swapper/108:20:111
146369950,1cyclictest0-21swapper/108:15:161
146369950,1cyclictest0-21swapper/108:10:171
146279954,1cyclictest17372-21munin-node07:55:100
146279950,1cyclictest16329-21/usr/sbin/munin08:20:170
146279950,0cyclictest0-21swapper/008:45:210
146539943,1cyclictest23855-21aten2.4-expect08:35:103
146539940,1cyclictest240-21systemd-journal07:30:003
146369941,2cyclictest0-21swapper/108:55:111
146369941,2cyclictest0-21swapper/108:25:161
146369940,4cyclictest0-21swapper/108:09:451
146369940,4cyclictest0-21swapper/107:51:421
146369940,1cyclictest0-21swapper/110:25:211
146369940,1cyclictest0-21swapper/108:50:181
146369940,1cyclictest0-21swapper/108:50:001
146369940,1cyclictest0-21swapper/107:55:171
146369940,0cyclictest0-21swapper/111:15:101
146369940,0cyclictest0-21swapper/107:10:331
146369931,1cyclictest0-21swapper/109:00:111
146369930,3cyclictest0-21swapper/109:05:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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