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2026-03-07 - 13:39
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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 792 highest latencies:
System rack1slot1.osadl.org (updated Sat Mar 07, 2026 12:45:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
234992198161,24sleep10-21swapper/107:08:171
233162198159,26sleep20-21swapper/207:05:532
233942196158,25sleep30-21swapper/307:06:543
233022196159,25sleep00-21swapper/007:05:430
267522720,0sleep00-21swapper/011:15:220
23705996023,37cyclictest34950irq/126-i91510:33:120
2371799210,11cyclictest0-21swapper/210:33:122
23718991616,0cyclictest24630-21decode-dimms10:33:123
2371399160,16cyclictest0-21swapper/110:33:121
23705991512,1cyclictest9-21ksoftirqd/008:50:000
291202140,0sleep328209-21/usr/sbin/munin08:25:173
23718991310,1cyclictest35-21ksoftirqd/310:14:553
23717991211,1cyclictest28-21ksoftirqd/207:25:002
23705991210,1cyclictest9-21ksoftirqd/007:19:590
2371799119,1cyclictest28-21ksoftirqd/209:30:002
2371799119,1cyclictest28-21ksoftirqd/207:35:002
23717991110,1cyclictest28-21ksoftirqd/207:15:002
2371899108,1cyclictest35-21ksoftirqd/309:45:093
2371799109,1cyclictest28-21ksoftirqd/210:00:132
2371799109,1cyclictest28-21ksoftirqd/207:15:012
2371799109,0cyclictest271rcuc/208:00:142
2371799109,0cyclictest271rcuc/208:00:132
2371799108,1cyclictest28-21ksoftirqd/211:15:002
2371799108,1cyclictest28-21ksoftirqd/209:55:002
2371799108,1cyclictest28-21ksoftirqd/208:20:002
23717991010,0cyclictest0-21swapper/211:40:542
2370599102,4cyclictest21510-21/usr/sbin/munin09:19:590
237189990,1cyclictest24217-21aten_r1power_po09:25:133
237189990,1cyclictest0-21swapper/311:45:113
237179998,1cyclictest28-21ksoftirqd/208:20:142
237179997,1cyclictest28-21ksoftirqd/210:10:182
237179997,1cyclictest28-21ksoftirqd/209:35:002
237179997,1cyclictest28-21ksoftirqd/207:40:002
237059997,1cyclictest14717-21aten_r1power_en09:05:120
237059994,1cyclictest0-21swapper/007:50:160
237059993,5cyclictest559-21cron08:05:000
237059993,5cyclictest559-21cron08:05:000
31614282,5sleep228-21ksoftirqd/211:22:422
237189987,1cyclictest35-21ksoftirqd/309:52:523
237189987,1cyclictest35-21ksoftirqd/308:00:133
237189987,1cyclictest35-21ksoftirqd/308:00:133
237189986,1cyclictest707-21snmpd12:32:013
237189986,1cyclictest707-21snmpd10:40:393
237189983,2cyclictest16788-21diskmemload11:25:403
237189980,5cyclictest11242-21latency_hist07:50:013
237189980,2cyclictest0-21swapper/310:15:123
237179987,1cyclictest28-21ksoftirqd/209:20:012
237179986,1cyclictest707-21snmpd12:36:232
237179986,1cyclictest707-21snmpd12:21:132
237179986,1cyclictest61650irq/122-eno112:15:192
237179986,1cyclictest61650irq/122-eno110:59:212
237179986,1cyclictest28-21ksoftirqd/207:55:142
237179986,1cyclictest28-21ksoftirqd/207:50:002
237179982,5cyclictest29339-21updatedb.mlocat08:29:022
237179980,7cyclictest0-21swapper/212:10:142
237179980,6cyclictest26070-21munin-node08:57:322
237059986,1cyclictest22016-21ssh11:10:150
237059981,6cyclictest6996-21ssh12:17:530
237059981,6cyclictest21353-21ssh12:35:210
237059980,7cyclictest4451-21cpuspeed_turbos11:30:120
237059980,4cyclictest19192-21perf09:14:590
237059980,1cyclictest8621-21diskstats12:20:130
23074280,1sleep30-21swapper/309:20:203
8917270,0sleep10-21swapper/110:00:131
237189977,0cyclictest35-21ksoftirqd/312:25:003
237189976,1cyclictest31874-21ssh11:23:223
237189975,1cyclictest707-21snmpd12:28:023
237189975,1cyclictest707-21snmpd12:07:363
237189975,1cyclictest707-21snmpd10:56:213
237189975,1cyclictest326-21cat07:25:163
237189970,6cyclictest26070-21munin-node09:44:233
237189970,4cyclictest0-21swapper/311:57:143
237189970,4cyclictest0-21swapper/310:50:333
237179976,1cyclictest61650irq/122-eno112:30:132
237179976,1cyclictest61650irq/122-eno112:25:192
237179976,1cyclictest61650irq/122-eno111:15:202
237179976,1cyclictest61650irq/122-eno111:04:262
237179976,1cyclictest61650irq/122-eno110:45:072
237179976,1cyclictest61650irq/122-eno110:35:132
237179976,1cyclictest28-21ksoftirqd/212:00:122
237179976,1cyclictest28-21ksoftirqd/209:00:122
237179976,1cyclictest28-21ksoftirqd/208:45:002
237179975,2cyclictest11682-21apt07:50:092
237179975,1cyclictest61650irq/122-eno110:50:132
237179975,1cyclictest61650irq/122-eno110:40:132
237179975,1cyclictest61650irq/122-eno108:45:142
237179975,1cyclictest28-21ksoftirqd/211:55:142
237179975,1cyclictest28-21ksoftirqd/209:05:142
237179974,1cyclictest240-21systemd-journal11:55:002
237179971,3cyclictest16788-21diskmemload11:31:312
237139970,4cyclictest0-21swapper/107:15:111
237139970,1cyclictest0-21swapper/110:25:151
237059976,1cyclictest9-21ksoftirqd/008:18:500
237059976,1cyclictest707-21snmpd11:52:050
237059975,1cyclictest29844-21ssh10:40:110
237059973,1cyclictest11953-21/usr/sbin/munin12:25:140
237059971,6cyclictest26792-21ssh12:00:080
237059971,2cyclictest0-21swapper/008:50:130
237059970,6cyclictest18512-21perl10:20:140
237059970,6cyclictest15789-21apt-get12:30:120
237059970,6cyclictest10452-21df_inode08:55:150
237059970,6cyclictest0-21swapper/011:01:150
237059970,6cyclictest0-21swapper/010:56:210
237059970,6cyclictest0-21swapper/009:40:160
237059970,1cyclictest5193-21hddtemp_smartct07:35:140
237059970,1cyclictest461-21/usr/sbin/munin08:35:100
237059970,1cyclictest32423-21ssh11:24:500
237059970,1cyclictest30970-21perf09:40:000
237059970,1cyclictest14728-21perl07:55:150
237059970,1cyclictest13984-21ssh11:41:000
237059970,1cyclictest0-21swapper/012:05:180
237059970,1cyclictest0-21swapper/010:45:270
237189966,0cyclictest19163-21perf09:14:593
237189966,0cyclictest14105-21ssh11:41:183
237189965,1cyclictest707-21snmpd11:10:283
237189965,1cyclictest6149-21sshd07:35:263
237189965,1cyclictest4217-21/usr/sbin/munin11:30:163
237189965,1cyclictest35-21ksoftirqd/307:50:103
237189965,1cyclictest3218-21ssh12:10:443
237189965,1cyclictest22487-21ssh12:38:123
237189964,1cyclictest707-21snmpd11:37:293
237189964,1cyclictest35-21ksoftirqd/309:19:543
237189963,2cyclictest583-21in:imuxsock08:00:003
237189963,1cyclictest240-21systemd-journal11:05:013
237189963,1cyclictest240-21systemd-journal10:00:003
237189962,2cyclictest7472-21awk09:55:203
237189962,1cyclictest8008-21latency_hist12:20:003
237189960,6cyclictest20665-21ls10:25:153
237189960,6cyclictest0-21swapper/311:51:363
237189960,3cyclictest0-21swapper/311:15:503
237189960,1cyclictest240-21systemd-journal10:24:543
237189960,1cyclictest0-21swapper/311:01:163
237179966,0cyclictest61650irq/122-eno111:46:202
237179966,0cyclictest61650irq/122-eno111:05:142
237179966,0cyclictest61650irq/122-eno109:40:242
237179966,0cyclictest61650irq/122-eno108:35:532
237179966,0cyclictest61650irq/122-eno108:06:532
237179965,1cyclictest61650irq/122-eno112:05:142
237179965,1cyclictest28-21ksoftirqd/207:40:152
237179964,1cyclictest61650irq/122-eno111:35:142
237179964,1cyclictest61650irq/122-eno110:15:122
237179964,1cyclictest61650irq/122-eno110:05:142
237179964,1cyclictest61650irq/122-eno109:20:162
237179964,1cyclictest61650irq/122-eno107:25:112
237179964,1cyclictest28-21ksoftirqd/209:45:122
237179964,1cyclictest28-21ksoftirqd/209:40:002
237179961,2cyclictest3490-21apt-get09:50:132
237179961,2cyclictest0-21swapper/210:20:112
237179960,6cyclictest0-21swapper/211:25:332
237179960,2cyclictest0-21swapper/208:30:092
237139966,0cyclictest0-21swapper/111:24:391
237139961,1cyclictest0-21swapper/108:10:141
237139960,6cyclictest0-21swapper/110:53:431
237139960,6cyclictest0-21swapper/109:54:111
237139960,6cyclictest0-21swapper/108:32:531
237139960,2cyclictest0-21swapper/111:45:111
237139960,0cyclictest0-21swapper/112:10:321
237059965,1cyclictest9-21ksoftirqd/010:00:080
237059965,1cyclictest9-21ksoftirqd/009:34:500
237059965,1cyclictest25296-21ssh11:56:440
237059964,1cyclictest1965-21fschecks_time12:10:160
237059963,2cyclictest7518-21tail07:40:140
237059963,1cyclictest240-21systemd-journal09:50:000
237059962,3cyclictest16788-21diskmemload11:25:020
237059962,1cyclictest240-21systemd-journal10:00:000
237059961,3cyclictest0-21swapper/010:10:130
237059960,6cyclictest11353-21ssh11:39:170
237059960,6cyclictest0-21swapper/007:20:150
237059960,5cyclictest16788-21diskmemload11:45:140
237059960,5cyclictest16788-21diskmemload10:50:100
237059960,5cyclictest16788-21diskmemload10:35:070
237059960,3cyclictest14440-21munin-run09:05:010
237059960,2cyclictest0-21swapper/007:12:380
237059960,1cyclictest240-21systemd-journal08:25:000
237059960,1cyclictest0-21swapper/010:05:140
237059960,1cyclictest0-21swapper/008:30:090
237059960,0cyclictest0-21swapper/011:05:140
237059960,0cyclictest0-21swapper/010:25:130
237059960,0cyclictest0-21swapper/009:20:120
8513250,1sleep10-21swapper/107:40:221
237189955,0cyclictest3918-21ssh10:46:573
237189954,1cyclictest35-21ksoftirqd/309:36:383
237189954,1cyclictest35-21ksoftirqd/309:08:503
237189954,1cyclictest35-21ksoftirqd/308:54:503
237189954,1cyclictest35-21ksoftirqd/308:34:213
237189954,1cyclictest35-21ksoftirqd/308:15:003
237189954,1cyclictest29605-21ssh12:03:443
237189954,1cyclictest13208-21cat09:00:163
237189953,1cyclictest26529-21date07:15:023
237189953,1cyclictest26061-21apt-get07:15:023
237189953,1cyclictest2032-21/usr/sbin/munin07:30:193
237189953,1cyclictest18761-21chrt08:05:113
237189953,1cyclictest1295-21smartctl08:35:143
237189951,2cyclictest24882-21python08:15:183
237189950,1cyclictest5229-21apt-get08:45:133
237189950,1cyclictest0-21swapper/310:35:123
237189950,1cyclictest0-21swapper/308:20:193
237189950,0cyclictest0-21swapper/307:40:263
237179955,0cyclictest61650irq/122-eno110:25:212
237179955,0cyclictest61650irq/122-eno108:50:112
237179950,4cyclictest21113-21/usr/sbin/munin08:10:172
237179950,2cyclictest0-21swapper/209:10:122
237139955,0cyclictest0-21swapper/111:15:381
237139955,0cyclictest0-21swapper/111:01:501
237139955,0cyclictest0-21swapper/108:45:541
237139951,3cyclictest0-21swapper/110:55:231
237139951,2cyclictest2355-21chrt08:36:471
237139950,5cyclictest0-21swapper/112:21:211
237139950,5cyclictest0-21swapper/111:51:041
237139950,5cyclictest0-21swapper/111:39:021
237139950,5cyclictest0-21swapper/111:32:001
237139950,5cyclictest0-21swapper/110:38:081
237139950,5cyclictest0-21swapper/110:10:211
237139950,5cyclictest0-21swapper/109:31:391
237139950,5cyclictest0-21swapper/109:22:441
237139950,5cyclictest0-21swapper/108:29:081
237139950,4cyclictest0-21swapper/111:42:571
237139950,4cyclictest0-21swapper/108:00:161
237139950,4cyclictest0-21swapper/108:00:161
237139950,3cyclictest0-21swapper/109:15:201
237139950,3cyclictest0-21swapper/107:50:111
237139950,1cyclictest0-21swapper/112:30:141
237139950,1cyclictest0-21swapper/112:05:161
237139950,1cyclictest0-21swapper/111:29:261
237139950,1cyclictest0-21swapper/110:15:121
237139950,1cyclictest0-21swapper/107:50:001
237139950,1cyclictest0-21swapper/107:30:111
237139950,0cyclictest0-21swapper/110:44:341
237139950,0cyclictest0-21swapper/110:20:281
237139950,0cyclictest0-21swapper/109:02:071
237059954,1cyclictest3487-21/usr/sbin/munin09:50:220
237059953,1cyclictest3662-21tail08:40:150
237059950,5cyclictest0-21swapper/009:29:550
237059950,4cyclictest28722-21diskstats08:25:140
237059950,1cyclictest9127-21/usr/sbin/munin07:45:180
237059950,1cyclictest0-21swapper/008:05:110
237059950,0cyclictest0-21swapper/010:15:140
237059950,0cyclictest0-21swapper/008:10:170
237059950,0cyclictest0-21swapper/007:30:110
237059950,0cyclictest0-21swapper/007:25:120
32241240,0sleep10-21swapper/109:40:191
237189944,0cyclictest29549-21sshd07:20:123
237189943,1cyclictest561-21nscd08:55:183
237189942,2cyclictest26473-21apt-get09:30:133
237189942,1cyclictest10783-21apt-get10:05:113
237139944,0cyclictest0-21swapper/112:02:171
237139944,0cyclictest0-21swapper/111:56:221
237139944,0cyclictest0-21swapper/109:45:181
237139944,0cyclictest0-21swapper/108:54:311
237139944,0cyclictest0-21swapper/107:38:371
237139944,0cyclictest0-21swapper/107:21:211
237139943,1cyclictest0-21swapper/112:15:111
237139943,1cyclictest0-21swapper/110:05:111
237139941,1cyclictest0-21swapper/109:30:001
237139941,1cyclictest0-21swapper/109:00:001
237139941,1cyclictest0-21swapper/108:05:001
237139941,1cyclictest0-21swapper/107:25:191
237139940,3cyclictest0-21swapper/111:08:221
237139940,3cyclictest0-21swapper/109:35:121
237139940,2cyclictest0-21swapper/112:35:401
237139940,2cyclictest0-21swapper/108:15:101
237139940,2cyclictest0-21swapper/107:15:001
237139940,1cyclictest0-21swapper/112:30:001
237139940,1cyclictest0-21swapper/111:11:421
237139940,1cyclictest0-21swapper/110:45:151
237139940,1cyclictest0-21swapper/109:10:131
237139940,1cyclictest0-21swapper/108:24:591
237139940,1cyclictest0-21swapper/107:55:211
237189930,1cyclictest240-21systemd-journal08:40:003
237139930,1cyclictest0-21swapper/109:55:001
237139930,1cyclictest0-21swapper/109:05:001
237139930,1cyclictest0-21swapper/108:40:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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