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2026-09-18 - 17:54
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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 Sep 18, 2026 12:45:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7682215149,22sleep20-21swapper/207:08:112
6292210175,22sleep30-21swapper/307:06:273
7312199161,24sleep00-21swapper/007:07:450
7832198158,26sleep10-21swapper/107:08:221
30452580,0sleep20-21swapper/209:20:512
324412160,0sleep121-21ksoftirqd/109:17:451
987991313,0cyclictest9-21ksoftirqd/009:30:140
987991311,1cyclictest9-21ksoftirqd/012:30:000
987991311,1cyclictest9-21ksoftirqd/008:30:000
1000991313,0cyclictest0-21swapper/209:26:062
100099130,12cyclictest0-21swapper/210:20:152
99599120,12cyclictest0-21swapper/107:45:111
987991210,1cyclictest9-21ksoftirqd/008:10:000
987991210,1cyclictest9-21ksoftirqd/007:20:000
100099121,10cyclictest61650irq/122-eno110:45:482
98799119,1cyclictest9-21ksoftirqd/011:50:000
987991111,0cyclictest9-21ksoftirqd/010:40:010
987991110,1cyclictest9-21ksoftirqd/010:55:140
987991110,1cyclictest9-21ksoftirqd/008:55:000
1007991110,1cyclictest35-21ksoftirqd/311:30:003
98799109,1cyclictest9-21ksoftirqd/012:00:120
98799109,1cyclictest9-21ksoftirqd/011:55:000
98799109,1cyclictest9-21ksoftirqd/009:25:000
98799108,1cyclictest9-21ksoftirqd/007:50:000
98799100,6cyclictest0-21swapper/009:25:110
314802100,0sleep20-21swapper/210:01:172
190012100,0sleep20-21swapper/211:16:062
9879998,1cyclictest9-21ksoftirqd/010:50:130
9879998,1cyclictest9-21ksoftirqd/010:05:000
9879998,1cyclictest9-21ksoftirqd/009:55:120
9879998,1cyclictest9-21ksoftirqd/008:10:130
9879997,1cyclictest9-21ksoftirqd/011:10:000
9879992,3cyclictest18562-21latency_hist09:45:000
9879990,8cyclictest693-21runrttasks11:12:170
9879990,1cyclictest26083-21diskmemload10:36:380
10079998,1cyclictest35-21ksoftirqd/308:03:473
10079998,1cyclictest35-21ksoftirqd/308:03:473
10079994,3cyclictest35-21ksoftirqd/310:32:033
10079990,5cyclictest17157-21memory12:00:163
10009990,8cyclictest11301-21snmpd09:55:382
10009990,0cyclictest0-21swapper/211:20:312
9879988,0cyclictest9-21ksoftirqd/012:35:150
9879988,0cyclictest9-21ksoftirqd/011:20:140
9879987,1cyclictest9-21ksoftirqd/011:35:150
9879987,1cyclictest9-21ksoftirqd/011:15:120
9879987,1cyclictest9-21ksoftirqd/011:00:130
9879987,1cyclictest9-21ksoftirqd/009:00:000
9879986,1cyclictest9-21ksoftirqd/010:45:130
9879986,1cyclictest9-21ksoftirqd/010:15:190
9879986,1cyclictest11301-21snmpd09:10:140
9879986,1cyclictest11301-21snmpd08:16:090
9879983,5cyclictest26083-21diskmemload11:35:000
9879981,4cyclictest22762-21ntp_states09:00:180
9879980,5cyclictest26083-21diskmemload10:25:130
9879980,1cyclictest240-21systemd-journal07:35:000
29409280,1sleep30-21swapper/310:00:103
10079988,0cyclictest0-21swapper/310:51:503
10079987,1cyclictest3638-21sh09:22:473
10079986,1cyclictest11301-21snmpd11:49:493
10079986,1cyclictest11301-21snmpd08:35:073
10079986,1cyclictest11301-21snmpd07:46:473
10079985,3cyclictest26083-21diskmemload10:48:193
10079983,2cyclictest26856-21sh12:15:123
10079982,4cyclictest26083-21diskmemload10:59:223
10079981,6cyclictest557-21irqbalance10:38:173
10079980,6cyclictest8767-21perl12:35:153
10079980,5cyclictest0-21swapper/311:00:193
10009986,1cyclictest61650irq/122-eno111:55:112
10009986,1cyclictest61650irq/122-eno111:35:162
10009986,1cyclictest61650irq/122-eno110:50:372
10009986,1cyclictest61650irq/122-eno110:16:392
10009986,1cyclictest61650irq/122-eno109:32:242
10009986,1cyclictest61650irq/122-eno109:15:102
10009986,1cyclictest28-21ksoftirqd/207:55:112
10009986,1cyclictest11301-21snmpd09:52:482
10009986,1cyclictest11301-21snmpd08:24:452
10009984,1cyclictest0-21swapper/212:00:122
10009980,5cyclictest0-21swapper/207:50:112
9959977,0cyclictest0-21swapper/112:30:151
9959971,5cyclictest27350-21chrt08:01:441
9959971,5cyclictest27350-21chrt08:01:441
9959970,6cyclictest0-21swapper/111:14:561
9959970,6cyclictest0-21swapper/110:45:141
9959970,6cyclictest0-21swapper/108:05:171
9959970,2cyclictest0-21swapper/111:40:201
9959970,2cyclictest0-21swapper/110:30:101
9959970,1cyclictest0-21swapper/111:53:131
9959970,1cyclictest0-21swapper/110:55:151
9879976,1cyclictest9-21ksoftirqd/012:15:120
9879976,1cyclictest9-21ksoftirqd/011:40:150
9879976,1cyclictest9-21ksoftirqd/007:25:000
9879976,1cyclictest11301-21snmpd12:11:040
9879975,1cyclictest9-21ksoftirqd/010:05:120
9879975,1cyclictest9-21ksoftirqd/007:40:000
9879975,1cyclictest9-21ksoftirqd/007:25:140
9879975,1cyclictest31214-21ntp_states12:20:160
9879975,1cyclictest25091-21ntpq09:05:190
9879970,6cyclictest26083-21diskmemload10:30:100
9879970,6cyclictest26083-21diskmemload10:13:340
9879970,6cyclictest22882-21cstates09:50:140
9879970,6cyclictest0-21swapper/012:05:150
9879970,6cyclictest0-21swapper/010:20:170
9879970,6cyclictest0-21swapper/009:45:130
9879970,6cyclictest0-21swapper/009:15:100
9879970,6cyclictest0-21swapper/008:30:110
9879970,1cyclictest26702-21ssh11:27:480
9879970,1cyclictest14780-21ssh11:56:320
9879970,1cyclictest13682-21ssh09:35:410
10079976,1cyclictest11301-21snmpd09:08:293
10079976,1cyclictest11301-21snmpd08:27:393
10079975,1cyclictest568-21nscd10:15:093
10079975,1cyclictest11301-21snmpd09:49:063
10079975,1cyclictest11301-21snmpd09:00:073
10079975,1cyclictest11301-21snmpd08:57:253
10079975,1cyclictest11301-21snmpd08:05:543
10079975,1cyclictest11301-21snmpd07:37:233
10079975,1cyclictest11301-21snmpd07:22:563
10079973,3cyclictest982-21cyclictest09:34:403
10079973,1cyclictest30306-21aten_r1power_po08:10:123
10079973,1cyclictest26083-21diskmemload12:05:173
10079972,2cyclictest26083-21diskmemload12:10:203
10079971,3cyclictest26083-21diskmemload10:22:463
10079971,2cyclictest0-21swapper/312:26:253
10079970,4cyclictest26083-21diskmemload10:25:103
10079970,4cyclictest0-21swapper/311:16:573
10079970,1cyclictest0-21swapper/307:15:123
10009976,1cyclictest61650irq/122-eno112:24:532
10009976,1cyclictest61650irq/122-eno111:47:502
10009976,1cyclictest61650irq/122-eno111:07:042
10009976,1cyclictest61650irq/122-eno110:35:122
10009976,1cyclictest61650irq/122-eno110:14:322
10009976,1cyclictest28-21ksoftirqd/207:45:002
10009976,0cyclictest61650irq/122-eno112:37:462
10009975,1cyclictest61650irq/122-eno112:15:182
10009975,1cyclictest61650irq/122-eno110:40:122
10009975,1cyclictest5057-21ssh11:43:482
10009975,1cyclictest19901-21ssh09:45:162
10009975,1cyclictest15625-21ntpq10:25:172
10009975,1cyclictest11301-21snmpd07:19:082
10009974,1cyclictest20769-21ntp_kernel_pll_12:05:172
10009973,1cyclictest30424-21tr08:10:122
10009972,2cyclictest240-21systemd-journal09:40:002
10009971,2cyclictest240-21systemd-journal08:35:002
10009970,7cyclictest27083-21kworker/u8:212:26:522
10009970,4cyclictest23077-21apt-get12:10:112
9959963,1cyclictest0-21swapper/112:20:141
9959961,5cyclictest0-21swapper/108:42:341
9959961,3cyclictest0-21swapper/109:00:001
9959960,6cyclictest0-21swapper/112:36:501
9959960,6cyclictest0-21swapper/111:45:371
9959960,6cyclictest0-21swapper/111:37:061
9959960,6cyclictest0-21swapper/109:39:091
9959960,6cyclictest0-21swapper/109:05:381
9959960,6cyclictest0-21swapper/108:22:301
9959960,6cyclictest0-21swapper/108:15:121
9959960,6cyclictest0-21swapper/107:56:581
9959960,6cyclictest0-21swapper/107:33:141
9959960,5cyclictest0-21swapper/110:35:101
9959960,5cyclictest0-21swapper/109:02:581
9959960,4cyclictest0-21swapper/111:55:111
9959960,4cyclictest0-21swapper/110:41:061
9959960,3cyclictest0-21swapper/109:30:301
9959960,3cyclictest0-21swapper/109:10:121
9959960,1cyclictest0-21swapper/112:28:471
9959960,1cyclictest0-21swapper/112:10:111
9959960,1cyclictest0-21swapper/109:58:361
9959960,1cyclictest0-21swapper/109:20:161
9959960,1cyclictest0-21swapper/108:46:071
9959960,1cyclictest0-21swapper/108:30:001
9879965,1cyclictest9-21ksoftirqd/007:10:130
9879965,1cyclictest32338-1kworker/u9:112:30:010
9879964,1cyclictest15044-21grep08:45:150
9879962,3cyclictest0-21swapper/007:55:100
9879962,1cyclictest240-21systemd-journal07:45:000
9879960,6cyclictest0-21swapper/008:01:300
9879960,6cyclictest0-21swapper/008:01:300
9879960,6cyclictest0-21swapper/007:53:380
9879960,1cyclictest11047-21switchtime08:35:200
9879960,1cyclictest0-21swapper/008:43:100
10079966,0cyclictest26083-21diskmemload11:35:283
10079965,1cyclictest6938-21ssh09:26:483
10079965,1cyclictest3918-21ssh10:10:023
10079965,1cyclictest22721-21ssh11:21:503
10079965,1cyclictest11559-21ssh11:52:213
10079965,1cyclictest11301-21snmpd10:42:073
10079965,1cyclictest11301-21snmpd09:55:303
10079964,1cyclictest35-21ksoftirqd/307:32:103
10079964,1cyclictest30787-21cat09:15:143
10079964,1cyclictest2478-21ssh10:06:033
10079964,1cyclictest11813-21/usr/sbin/munin09:35:193
10079964,1cyclictest11301-21snmpd09:40:393
10079964,1cyclictest11301-21snmpd08:22:223
10079964,1cyclictest10893-21idleruntime11:05:153
10079963,1cyclictest240-21systemd-journal11:45:003
10079963,1cyclictest16062-21/usr/sbin/munin07:40:153
10079962,3cyclictest22626-21grep09:50:133
10079962,1cyclictest3390-21sed07:15:013
10079962,1cyclictest16589-21runrttasks11:14:373
10079961,2cyclictest32559-21munin-node08:15:113
10079960,6cyclictest26083-21diskmemload11:30:363
10079960,4cyclictest26083-21diskmemload09:10:563
10079960,3cyclictest0-21swapper/312:30:423
10079960,3cyclictest0-21swapper/311:55:513
10009966,0cyclictest61650irq/122-eno111:30:062
10009966,0cyclictest61650irq/122-eno111:25:132
10009966,0cyclictest61650irq/122-eno110:55:172
10009966,0cyclictest61650irq/122-eno109:10:372
10009966,0cyclictest61650irq/122-eno109:00:112
10009966,0cyclictest61650irq/122-eno108:35:492
10009966,0cyclictest61650irq/122-eno108:15:182
10009965,1cyclictest61650irq/122-eno107:10:102
10009965,1cyclictest2300-21ssh10:05:272
10009964,1cyclictest7013-21perf08:30:002
10009964,1cyclictest6631-21apt-get07:20:112
10009964,1cyclictest61650irq/122-eno112:30:192
10009964,1cyclictest61650irq/122-eno111:50:112
10009964,1cyclictest61650irq/122-eno111:00:112
10009964,1cyclictest61650irq/122-eno109:40:092
10009964,1cyclictest29012-21ntpq08:05:192
10009964,1cyclictest28-21ksoftirqd/208:42:182
10009964,1cyclictest23954-21apt-get09:05:132
10009961,4cyclictest26083-21diskmemload10:30:192
10009960,6cyclictest0-21swapper/208:59:312
10009960,6cyclictest0-21swapper/208:50:342
10009960,6cyclictest0-21swapper/207:26:152
10009960,1cyclictest0-21swapper/211:10:492
10009960,1cyclictest0-21swapper/207:35:112
9959955,0cyclictest0-21swapper/111:30:011
9959955,0cyclictest0-21swapper/109:42:401
9959952,2cyclictest0-21swapper/112:00:101
9959951,2cyclictest0-21swapper/108:10:111
9959951,1cyclictest0-21swapper/111:00:111
9959950,5cyclictest0-21swapper/110:07:571
9959950,5cyclictest0-21swapper/108:37:371
9959950,5cyclictest0-21swapper/108:30:381
9959950,5cyclictest0-21swapper/107:22:081
9959950,4cyclictest0-21swapper/111:15:291
9959950,4cyclictest0-21swapper/111:06:151
9959950,4cyclictest0-21swapper/109:50:121
9959950,4cyclictest0-21swapper/109:45:111
9959950,4cyclictest0-21swapper/108:50:141
9959950,2cyclictest0-21swapper/112:15:101
9959950,2cyclictest0-21swapper/110:20:101
9959950,2cyclictest0-21swapper/110:00:141
9959950,1cyclictest0-21swapper/110:50:151
9959950,1cyclictest0-21swapper/107:15:121
9959950,0cyclictest0-21swapper/111:22:021
9959950,0cyclictest0-21swapper/110:18:071
9959950,0cyclictest0-21swapper/109:29:081
9879950,5cyclictest0-21swapper/008:20:100
10079953,1cyclictest31874-21ssh12:20:333
10079953,1cyclictest11301-21snmpd08:31:133
10079952,2cyclictest20772-21apt-get07:50:113
10079952,1cyclictest14320-21apt-get08:45:123
10079951,3cyclictest16670-21apt-get08:50:103
10079951,1cyclictest11301-21snmpd07:28:293
10079951,1cyclictest1-21systemd07:56:583
10009955,0cyclictest61650irq/122-eno108:45:122
10009955,0cyclictest61650irq/122-eno108:00:172
10009955,0cyclictest61650irq/122-eno108:00:172
10009955,0cyclictest61650irq/122-eno107:30:152
10009951,0cyclictest0-21swapper/207:45:112
9959944,0cyclictest0-21swapper/107:39:051
9959942,1cyclictest178112sleep107:40:211
9959942,1cyclictest158262sleep110:25:181
9959940,4cyclictest0-21swapper/107:53:061
9959940,3cyclictest0-21swapper/111:25:481
9959940,2cyclictest0-21swapper/112:05:191
9959940,2cyclictest0-21swapper/110:10:541
9959940,0cyclictest0-21swapper/107:25:191
10079942,1cyclictest12713-21grep08:40:133
9959930,1cyclictest0-21swapper/107:10:101
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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