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2026-08-22 - 19:14
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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 Sat Aug 22, 2026 12:45:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
124762209147,24sleep10-21swapper/107:09:351
124902205166,25sleep00-21swapper/007:09:460
122662203164,25sleep30-21swapper/307:06:513
103992198160,25sleep20-21swapper/207:05:042
12595991817,1cyclictest35-21ksoftirqd/311:25:233
12595991716,1cyclictest35-21ksoftirqd/308:05:013
12595991715,1cyclictest35-21ksoftirqd/307:15:203
12595991616,0cyclictest35-21ksoftirqd/311:32:253
12595991616,0cyclictest35-21ksoftirqd/310:48:223
12595991615,1cyclictest35-21ksoftirqd/310:05:123
19542150,1sleep01953-21cut09:00:140
19542150,1sleep01953-21cut09:00:140
141312150,0sleep10-21swapper/107:10:181
12595991515,0cyclictest35-21ksoftirqd/312:32:083
12595991515,0cyclictest35-21ksoftirqd/312:22:213
12595991515,0cyclictest35-21ksoftirqd/310:04:263
12595991515,0cyclictest35-21ksoftirqd/308:35:153
12595991515,0cyclictest35-21ksoftirqd/308:25:193
12595991412,1cyclictest35-21ksoftirqd/308:15:143
1258599143,4cyclictest20391-21gpgv12:35:000
1259599134,7cyclictest35-21ksoftirqd/309:05:143
1259599134,6cyclictest35-21ksoftirqd/307:50:203
12595991313,0cyclictest35-21ksoftirqd/312:39:033
12595991313,0cyclictest35-21ksoftirqd/310:23:483
12595991313,0cyclictest35-21ksoftirqd/309:35:183
12595991313,0cyclictest35-21ksoftirqd/308:30:173
12595991312,1cyclictest35-21ksoftirqd/310:25:163
12595991312,1cyclictest35-21ksoftirqd/308:45:163
12595991311,1cyclictest35-21ksoftirqd/312:15:223
12595991311,1cyclictest35-21ksoftirqd/311:45:003
12594991312,1cyclictest28-21ksoftirqd/210:00:162
12594991311,1cyclictest28-21ksoftirqd/208:24:592
12585991312,1cyclictest9-21ksoftirqd/008:35:000
1259599125,4cyclictest35-21ksoftirqd/308:05:153
12595991212,0cyclictest35-21ksoftirqd/312:15:003
12595991212,0cyclictest35-21ksoftirqd/310:45:003
12595991212,0cyclictest35-21ksoftirqd/308:55:113
12595991211,1cyclictest5035-21latency_hist07:59:593
12595991211,1cyclictest35-21ksoftirqd/311:49:593
12595991211,1cyclictest35-21ksoftirqd/309:20:123
12595991211,1cyclictest35-21ksoftirqd/307:20:183
12595991210,1cyclictest35-21ksoftirqd/312:25:173
12595991210,1cyclictest35-21ksoftirqd/312:00:183
12595991210,1cyclictest35-21ksoftirqd/311:50:183
12595991210,1cyclictest35-21ksoftirqd/311:37:553
12595991210,1cyclictest35-21ksoftirqd/311:09:593
12595991210,1cyclictest35-21ksoftirqd/310:15:153
12595991210,1cyclictest35-21ksoftirqd/310:10:193
12595991210,1cyclictest35-21ksoftirqd/310:00:013
12595991210,1cyclictest35-21ksoftirqd/309:50:123
12594991211,1cyclictest28-21ksoftirqd/211:19:592
12594991210,1cyclictest28-21ksoftirqd/211:05:002
12594991210,1cyclictest28-21ksoftirqd/210:50:222
1259499120,0cyclictest0-21swapper/210:16:332
1259599119,1cyclictest35-21ksoftirqd/311:55:193
1259599119,1cyclictest35-21ksoftirqd/311:15:133
1259599119,1cyclictest35-21ksoftirqd/310:50:133
1259599119,1cyclictest35-21ksoftirqd/310:35:163
1259599119,1cyclictest35-21ksoftirqd/310:30:213
1259599119,1cyclictest35-21ksoftirqd/309:45:193
1259599119,1cyclictest35-21ksoftirqd/309:25:143
1259599118,1cyclictest35-21ksoftirqd/308:20:003
12595991111,0cyclictest35-21ksoftirqd/309:15:213
12595991110,1cyclictest35-21ksoftirqd/311:10:153
12595991110,1cyclictest35-21ksoftirqd/310:55:133
12595991110,1cyclictest35-21ksoftirqd/309:30:153
12595991110,1cyclictest35-21ksoftirqd/309:15:003
12595991110,1cyclictest35-21ksoftirqd/308:45:003
1259499119,1cyclictest28-21ksoftirqd/212:30:152
1259499119,1cyclictest28-21ksoftirqd/212:20:012
1259499119,1cyclictest28-21ksoftirqd/208:15:012
1259499119,1cyclictest28-21ksoftirqd/207:15:012
12594991110,1cyclictest28-21ksoftirqd/211:30:132
1259499110,0cyclictest0-21swapper/212:07:272
1259499110,0cyclictest0-21swapper/210:28:572
1259599109,1cyclictest35-21ksoftirqd/311:20:133
1259599109,1cyclictest35-21ksoftirqd/311:00:353
1259599109,1cyclictest35-21ksoftirqd/309:40:213
1259599109,1cyclictest35-21ksoftirqd/307:50:003
1259599109,1cyclictest35-21ksoftirqd/307:30:203
1259599108,1cyclictest35-21ksoftirqd/312:05:153
1259599108,1cyclictest35-21ksoftirqd/308:10:103
1259599108,1cyclictest35-21ksoftirqd/307:44:593
1259599108,1cyclictest35-21ksoftirqd/307:29:593
1259599108,1cyclictest35-21ksoftirqd/307:10:123
12595991010,0cyclictest35-21ksoftirqd/307:40:003
1259499109,1cyclictest28-21ksoftirqd/212:00:142
1259499109,1cyclictest28-21ksoftirqd/211:59:592
1259499109,1cyclictest28-21ksoftirqd/207:40:512
1259499108,1cyclictest28-21ksoftirqd/209:35:002
1259499108,1cyclictest28-21ksoftirqd/207:15:012
1258599104,5cyclictest24117-21latency_hist12:39:590
1258599101,4cyclictest26418-21latency_hist10:24:590
1258599100,6cyclictest28084-21python10:25:210
124062100,0sleep00-21swapper/009:19:140
27257290,0sleep10-21swapper/111:56:471
125959999,0cyclictest35-21ksoftirqd/308:50:133
125959997,1cyclictest35-21ksoftirqd/309:00:123
125959997,1cyclictest35-21ksoftirqd/309:00:123
125949998,1cyclictest28-21ksoftirqd/212:25:222
125949997,1cyclictest28-21ksoftirqd/211:50:162
125949997,1cyclictest28-21ksoftirqd/209:45:182
125949997,1cyclictest28-21ksoftirqd/208:05:012
125949990,5cyclictest561-21nscd11:49:232
125859993,5cyclictest32766-21latency_hist07:50:000
125859993,5cyclictest31043-21perf08:55:000
125859992,6cyclictest5873-21sh09:10:030
125859992,3cyclictest25277-21perf07:35:000
125859991,4cyclictest12170-21perf08:15:010
125859990,4cyclictest21100-21ssh11:02:130
125949987,1cyclictest28-21ksoftirqd/211:20:152
125949987,1cyclictest28-21ksoftirqd/211:05:162
125949987,1cyclictest28-21ksoftirqd/210:35:152
125949987,1cyclictest28-21ksoftirqd/210:05:152
125949987,1cyclictest28-21ksoftirqd/209:58:342
125949987,1cyclictest28-21ksoftirqd/209:35:192
125949986,1cyclictest61650irq/122-eno111:35:122
125949986,1cyclictest61650irq/122-eno111:10:132
125949986,1cyclictest61650irq/122-eno109:13:182
125949986,1cyclictest28-21ksoftirqd/212:35:132
125949986,1cyclictest28-21ksoftirqd/211:25:152
125949986,1cyclictest28-21ksoftirqd/210:35:002
125949986,1cyclictest28-21ksoftirqd/209:50:132
125949986,1cyclictest28-21ksoftirqd/209:00:012
125949982,5cyclictest14958-21munin-node08:28:562
125869980,8cyclictest0-21swapper/109:38:561
125859986,1cyclictest11301-21snmpd08:06:250
125859981,3cyclictest21314-21perf11:50:000
125859980,7cyclictest5409-21perl10:40:150
125859980,7cyclictest5202-21ssh09:54:400
125859980,7cyclictest26961-21ssh11:10:170
125859980,4cyclictest27858-21latency_hist07:39:590
125859980,4cyclictest240-21systemd-journal09:29:550
125859980,4cyclictest0-21swapper/010:00:100
125859980,1cyclictest13587-21ssh10:50:380
125949976,1cyclictest61650irq/122-eno109:23:122
125949976,1cyclictest61650irq/122-eno109:05:162
125949975,1cyclictest9123-21kworker/2:110:45:152
125949975,1cyclictest61650irq/122-eno110:40:142
125949975,1cyclictest61650irq/122-eno110:20:132
125949975,1cyclictest29382-21ssh09:41:182
125949975,1cyclictest28-21ksoftirqd/212:10:162
125949975,1cyclictest28-21ksoftirqd/211:40:122
125949975,1cyclictest28-21ksoftirqd/208:50:192
125949975,1cyclictest11301-21snmpd12:24:582
125949975,1cyclictest11301-21snmpd09:27:102
125949973,2cyclictest240-21systemd-journal08:50:002
125949971,6cyclictest0-21swapper/207:36:512
125949971,6cyclictest0-21swapper/207:29:132
125949970,6cyclictest0-21swapper/209:15:062
125949970,1cyclictest0-21swapper/207:58:562
125869971,6cyclictest0-21swapper/108:59:301
125869971,2cyclictest0-21swapper/111:40:111
125869970,6cyclictest0-21swapper/112:38:291
125869970,6cyclictest0-21swapper/107:20:221
125869970,1cyclictest0-21swapper/109:45:171
125869970,1cyclictest0-21swapper/108:07:051
125859976,1cyclictest4252-1kworker/u9:210:10:150
125859976,1cyclictest11301-21snmpd11:44:280
125859975,1cyclictest6514-21sh11:28:150
125859975,1cyclictest5653-21diskmemload09:20:140
125859975,1cyclictest28970-21expr12:00:140
125859975,1cyclictest1374-21memory11:20:170
125859975,1cyclictest11301-21snmpd12:27:470
125859972,4cyclictest10126-21ssh11:33:380
125859971,1cyclictest22269-21ssh11:05:130
125859970,6cyclictest8601-21ls10:45:140
125859970,6cyclictest7402-21ssh09:55:260
125859970,6cyclictest7398-21latency_hist08:05:010
125859970,6cyclictest3624-21df_inode12:10:140
125859970,6cyclictest3253-21cstates07:55:140
125859970,6cyclictest32277-21ssh10:31:360
125859970,6cyclictest0-21swapper/011:50:150
125859970,6cyclictest0-21swapper/011:15:120
125859970,6cyclictest0-21swapper/009:09:290
125859970,6cyclictest0-21swapper/007:50:190
125859970,1cyclictest824-21ssh09:47:320
125859970,1cyclictest20179-21ssh09:30:040
125859970,1cyclictest0-21swapper/010:35:150
125859970,1cyclictest0-21swapper/007:15:550
10954270,0sleep00-21swapper/012:20:160
6009260,4sleep10-21swapper/109:10:121
24182260,0sleep10-21swapper/111:05:561
125949966,0cyclictest61650irq/122-eno110:10:012
125949966,0cyclictest28-21ksoftirqd/208:40:122
125949965,1cyclictest61650irq/122-eno108:35:122
125949965,1cyclictest28-21ksoftirqd/208:05:152
125949965,1cyclictest28-21ksoftirqd/207:45:012
125949964,1cyclictest61650irq/122-eno107:30:152
125949964,1cyclictest28-21ksoftirqd/208:30:152
125949964,1cyclictest28-21ksoftirqd/207:50:122
125949964,1cyclictest28-21ksoftirqd/207:20:122
125949961,4cyclictest9123-21kworker/2:108:17:522
125949961,4cyclictest0-21swapper/209:00:112
125949961,4cyclictest0-21swapper/209:00:102
125949961,2cyclictest0-21swapper/210:55:122
125869966,0cyclictest0-21swapper/112:04:001
125869966,0cyclictest0-21swapper/110:11:211
125869961,4cyclictest0-21swapper/107:35:211
125869960,6cyclictest0-21swapper/111:37:211
125869960,6cyclictest0-21swapper/110:50:121
125869960,6cyclictest0-21swapper/110:08:021
125869960,6cyclictest0-21swapper/109:25:061
125869960,6cyclictest0-21swapper/108:23:501
125869960,6cyclictest0-21swapper/108:00:161
125869960,6cyclictest0-21swapper/107:27:371
125869960,5cyclictest0-21swapper/110:28:431
125869960,5cyclictest0-21swapper/110:23:291
125869960,5cyclictest0-21swapper/108:35:171
125869960,5cyclictest0-21swapper/107:54:351
125869960,4cyclictest0-21swapper/112:30:201
125869960,4cyclictest0-21swapper/112:05:211
125869960,4cyclictest0-21swapper/110:46:071
125869960,4cyclictest0-21swapper/110:01:291
125869960,2cyclictest0-21swapper/109:40:121
125869960,0cyclictest0-21swapper/111:03:331
125869960,0cyclictest0-21swapper/109:15:091
125859965,1cyclictest9-21ksoftirqd/008:22:530
125859965,1cyclictest17985-21apt-get07:20:010
125859964,1cyclictest9-21ksoftirqd/008:44:350
125859964,1cyclictest22159-21systemctl07:25:190
125859964,1cyclictest13720-21needreboot10:05:170
125859960,6cyclictest1744-1kworker/u9:112:15:130
125859960,6cyclictest0-21swapper/011:55:050
125859960,6cyclictest0-21swapper/008:19:350
125859960,5cyclictest17085-21/usr/sbin/munin08:25:140
125859960,5cyclictest0-21swapper/008:58:050
125859960,1cyclictest15322-21telnet10:55:130
125859960,0cyclictest5653-21diskmemload12:05:170
125859960,0cyclictest0-21swapper/011:35:130
125859960,0cyclictest0-21swapper/010:15:110
125859960,0cyclictest0-21swapper/009:40:030
125859960,0cyclictest0-21swapper/009:35:130
125859960,0cyclictest0-21swapper/008:46:140
125859960,0cyclictest0-21swapper/008:35:150
125859960,0cyclictest0-21swapper/007:40:180
125869955,0cyclictest0-21swapper/111:46:051
125869953,1cyclictest0-21swapper/107:15:101
125869951,4cyclictest0-21swapper/111:15:421
125869951,4cyclictest0-21swapper/107:31:461
125869951,2cyclictest0-21swapper/111:30:001
125869951,1cyclictest0-21swapper/112:15:111
125869951,1cyclictest0-21swapper/111:11:481
125869950,5cyclictest0-21swapper/112:20:251
125869950,5cyclictest0-21swapper/112:11:281
125869950,5cyclictest0-21swapper/111:34:461
125869950,5cyclictest0-21swapper/110:30:491
125869950,5cyclictest0-21swapper/109:56:091
125869950,5cyclictest0-21swapper/109:06:251
125869950,5cyclictest0-21swapper/108:50:101
125869950,5cyclictest0-21swapper/108:45:021
125869950,5cyclictest0-21swapper/108:25:141
125869950,5cyclictest0-21swapper/107:47:021
125869950,3cyclictest0-21swapper/112:25:181
125869950,2cyclictest0-21swapper/111:54:431
125869950,2cyclictest0-21swapper/111:20:111
125869950,2cyclictest0-21swapper/109:20:121
125869950,1cyclictest0-21swapper/110:55:121
125869950,1cyclictest0-21swapper/110:35:061
125869950,1cyclictest0-21swapper/110:15:261
125859954,1cyclictest12830-21telnet07:10:110
125869940,4cyclictest0-21swapper/109:01:221
125869940,4cyclictest0-21swapper/109:01:211
125869940,4cyclictest0-21swapper/108:16:331
125869940,4cyclictest0-21swapper/108:13:081
125869940,2cyclictest0-21swapper/110:40:111
125869940,2cyclictest0-21swapper/109:50:111
125869940,2cyclictest0-21swapper/109:30:131
125869932,1cyclictest194392sleep108:30:111
125869931,1cyclictest0-21swapper/107:55:121
125869930,1cyclictest0-21swapper/107:40:161
125869930,0cyclictest0-21swapper/108:40:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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