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2026-03-28 - 08:54
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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 376 highest latencies:
System rack2slot0.osadl.org (updated Sat Mar 28, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
321652820,0sleep032164-21sshd23:07:040
25132810,2sleep02929399cyclictest21:56:310
262042760,1sleep26850-21kworker/u8:021:36:502
235982580,0sleep10-21swapper/122:52:431
22702560,0sleep10-21swapper/121:34:531
207032560,0sleep00-21swapper/021:18:300
68252550,1sleep06821-21sshd23:59:270
166182550,0sleep30-21swapper/322:33:033
304252540,0sleep20-21swapper/200:09:382
108622530,0sleep210840-21bash22:13:322
152602520,1sleep115264-21gltestperf23:00:121
98902510,0sleep00-21swapper/022:18:550
51082510,1sleep05103-21bash23:02:040
46512510,0sleep10-21swapper/123:26:331
13612500,0sleep20-21swapper/223:09:582
192702490,1sleep019272-21grep00:33:120
158812490,0sleep00-21swapper/022:57:310
35742480,0sleep20-21swapper/223:50:572
103692470,0sleep00-21swapper/021:35:290
116662440,0sleep10-21swapper/123:43:301
134102410,0sleep30-21swapper/322:13:453
7972400,0sleep0101ktimersoftd/023:29:000
98062390,0sleep20-21swapper/223:16:032
209192380,0sleep20-21swapper/221:44:352
2889923422,7sleep30-21swapper/319:06:203
2889923422,7sleep30-21swapper/319:06:203
2917323019,7sleep10-21swapper/119:09:481
2917323019,7sleep10-21swapper/119:09:471
291772298,7sleep00-21swapper/019:09:510
291772298,7sleep00-21swapper/019:09:500
2910522413,7sleep20-21swapper/219:08:562
2910522413,7sleep20-21swapper/219:08:562
119762180,0sleep00-21swapper/022:13:370
62212170,0sleep20-21swapper/200:26:382
47152170,0sleep30-21swapper/323:34:473
309322170,0sleep20-21swapper/222:04:232
29293991716,0cyclictest10870-21kworker/0:222:54:360
281202170,1sleep233-21ksoftirqd/223:12:122
29293991616,0cyclictest101ktimersoftd/019:51:280
29293991615,0cyclictest17952-21lspci22:38:360
26292160,0sleep20-21swapper/221:27:572
24552160,1sleep32458-21bash23:56:183
23492160,0sleep1231rcuc/123:23:391
316512150,0sleep10-21swapper/122:17:591
29293991515,0cyclictest9252-21kworker/0:219:38:340
29293991513,1cyclictest28991-21kworker/0:300:19:430
29293991513,1cyclictest10428-21kworker/0:222:23:340
28652150,0sleep20-21swapper/200:34:342
280232150,1sleep228019-21lspci00:36:382
154592150,0sleep30-21swapper/323:35:363
80962140,0sleep00-21swapper/023:54:070
326012140,0sleep20-21swapper/221:23:502
319072140,0sleep20-21swapper/222:07:062
316522140,0sleep329977-21packagekitd22:39:483
301082140,0sleep30-21swapper/322:09:443
29293991414,0cyclictest28991-21kworker/0:300:24:340
29293991413,0cyclictest10874-21kworker/0:022:45:570
29293991413,0cyclictest10428-21kworker/0:222:26:430
29293991413,0cyclictest101ktimersoftd/023:31:070
240512140,0sleep00-21swapper/021:42:050
5822130,0sleep2311rcuc/200:20:402
2931099130,11cyclictest1-21systemd21:24:433
2930699135,3cyclictest33-21ksoftirqd/222:47:022
2930699130,12cyclictest674-21dbus-daemon23:28:072
29299991311,1cyclictest624-13audispd22:29:121
29299991311,1cyclictest0-21swapper/100:25:121
29293991313,0cyclictest18055-21kworker/0:323:45:020
29293991312,0cyclictest32550irq/27-ahci[00021:46:100
29293991312,0cyclictest101ktimersoftd/022:03:480
264002130,0sleep10-21swapper/122:20:151
124932130,0sleep30-21swapper/321:43:523
2931099120,1cyclictest0-21swapper/323:06:423
2931099120,1cyclictest0-21swapper/300:15:123
2931099120,1cyclictest0-21swapper/300:11:233
2930699123,3cyclictest33-21ksoftirqd/223:31:122
29306991210,1cyclictest3562-21systemd-cgroups23:42:482
2930699120,11cyclictest1660-21sshd21:53:472
29299991210,1cyclictest0-21swapper/100:10:411
2929999120,1cyclictest6221-21sshd21:12:521
2929999120,11cyclictest18614-21bash22:41:221
2929999120,11cyclictest18614-21bash22:41:211
29293991212,0cyclictest5621-21kworker/0:119:30:140
29293991212,0cyclictest23434-21kworker/0:221:23:050
29293991211,0cyclictest4497-21lspci21:54:020
29293991211,0cyclictest22316-21lspci00:38:550
29293991211,0cyclictest101ktimersoftd/023:12:440
29293991210,1cyclictest10890-21kworker/0:000:04:060
29293991210,1cyclictest0-21swapper/023:36:160
173302120,0sleep11026-21sshd23:52:081
29310991110,0cyclictest0-21swapper/322:53:423
29310991110,0cyclictest0-21swapper/321:52:223
2931099110,10cyclictest4760-21bash23:48:233
2931099110,10cyclictest0-21swapper/322:03:023
2931099110,0cyclictest0-21swapper/322:16:123
2930699119,1cyclictest30400-21sshd00:17:482
2930699116,2cyclictest33-21ksoftirqd/221:56:492
2930699112,1cyclictest33-21ksoftirqd/223:35:292
2930699111,2cyclictest131rcu_sched22:50:252
29306991110,0cyclictest527-40kipmi000:13:162
29306991110,0cyclictest0-21swapper/222:44:172
29306991110,0cyclictest0-21swapper/222:44:172
29306991110,0cyclictest0-21swapper/222:23:272
29306991110,0cyclictest0-21swapper/200:01:182
29299991110,0cyclictest0-21swapper/122:02:221
2929999110,1cyclictest14092-21bash22:11:021
2929999110,10cyclictest0-21swapper/122:33:311
2929999110,0cyclictest0-21swapper/123:45:411
2929399113,2cyclictest9-21ksoftirqd/000:26:470
2929399111,1cyclictest9-21ksoftirqd/023:41:080
2929399111,1cyclictest9-21ksoftirqd/023:16:300
2929399110,10cyclictest0-21swapper/021:13:460
2931099109,0cyclictest0-21swapper/321:37:123
2931099109,0cyclictest0-21swapper/321:17:523
2931099100,0cyclictest0-21swapper/323:52:123
2930699109,0cyclictest0-21swapper/222:29:482
2930699109,0cyclictest0-21swapper/221:49:582
2930699103,1cyclictest33-21ksoftirqd/223:57:532
2930699103,1cyclictest33-21ksoftirqd/223:21:002
2930699100,9cyclictest0-21swapper/219:16:172
2930699100,1cyclictest121rcu_preempt23:00:422
2929999109,0cyclictest0-21swapper/121:44:211
2929999109,0cyclictest0-21swapper/121:25:511
2929999109,0cyclictest0-21swapper/100:33:411
2929999109,0cyclictest0-21swapper/100:18:221
2929999109,0cyclictest0-21swapper/100:06:511
2929999108,1cyclictest4274-21sshd22:56:311
2929999100,0cyclictest0-21swapper/123:12:421
2929399109,0cyclictest8152-21lspci00:10:230
2929399109,0cyclictest32550irq/27-ahci[00021:29:040
2929399109,0cyclictest27399-21kworker/0:121:33:080
2929399109,0cyclictest25987-21kworker/0:220:32:290
2929399101,1cyclictest9-21ksoftirqd/022:09:340
29293991010,0cyclictest19028-21kworker/0:223:20:360
219362100,0sleep2321ktimersoftd/221:10:472
293109998,0cyclictest0-21swapper/323:17:423
293109998,0cyclictest0-21swapper/323:11:023
293109998,0cyclictest0-21swapper/322:22:233
293109997,1cyclictest0-21swapper/321:29:223
293069994,1cyclictest33-21ksoftirqd/222:57:312
293069991,1cyclictest22224-21systemd-cgroups22:17:102
293069991,1cyclictest121rcu_preempt23:45:062
293069991,1cyclictest121rcu_preempt22:31:222
292999998,0cyclictest0-21swapper/123:59:111
292999998,0cyclictest0-21swapper/121:51:411
292999998,0cyclictest0-21swapper/121:16:511
292999998,0cyclictest0-21swapper/120:37:111
292999998,0cyclictest0-21swapper/119:30:111
292999997,1cyclictest0-21swapper/121:35:521
292939999,0cyclictest9252-21kworker/0:219:56:240
292939998,0cyclictest0-21swapper/022:30:050
292939992,1cyclictest131rcu_sched00:07:020
292939990,8cyclictest0-21swapper/019:23:550
292939990,1cyclictest5243-21lspci22:40:140
292939990,1cyclictest5243-21lspci22:40:130
293109987,0cyclictest0-21swapper/320:10:123
293109986,1cyclictest622-13audispd00:30:363
293109986,1cyclictest41-21ksoftirqd/321:55:343
293109986,1cyclictest23147-21lspci00:36:133
293109986,1cyclictest18843-21lspci23:00:263
293109985,2cyclictest660-21avahi-daemon23:44:463
293109985,2cyclictest660-21avahi-daemon22:47:583
293109985,2cyclictest660-21avahi-daemon22:40:183
293109985,2cyclictest660-21avahi-daemon22:40:183
293109985,2cyclictest660-21avahi-daemon00:25:243
293109985,2cyclictest660-21avahi-daemon00:20:033
293109985,2cyclictest660-21avahi-daemon00:09:473
293109985,2cyclictest660-21avahi-daemon00:02:543
293109984,3cyclictest660-21avahi-daemon21:34:023
293109984,1cyclictest649-21polkitd21:13:383
293109980,1cyclictest19813-21sshd23:25:083
293069986,1cyclictest33-21ksoftirqd/222:35:062
293069986,1cyclictest33-21ksoftirqd/221:15:122
293069984,1cyclictest33-21ksoftirqd/221:34:062
292999987,0cyclictest0-21swapper/100:03:021
292999986,1cyclictest7941-21lspci21:24:461
292999986,1cyclictest4468-21lspci23:34:451
292999986,1cyclictest27440-21lspci22:36:391
292999986,1cyclictest25-21ksoftirqd/123:37:411
292999986,1cyclictest25-21ksoftirqd/122:06:011
292999986,1cyclictest0-21swapper/121:45:321
292999985,2cyclictest699-21gdbus22:45:201
292999985,2cyclictest660-21avahi-daemon23:16:341
292999985,2cyclictest660-21avahi-daemon23:05:091
292999984,3cyclictest15249-21sshd00:21:551
292999983,2cyclictest4825-21sshd21:56:431
292999982,3cyclictest620-17auditd00:35:321
292939988,0cyclictest9252-21kworker/0:219:45:300
292939988,0cyclictest25987-21kworker/0:220:20:300
292939988,0cyclictest1486-21kworker/0:019:28:410
292939988,0cyclictest101ktimersoftd/021:01:330
292939988,0cyclictest101ktimersoftd/020:47:510
293109975,1cyclictest660-21avahi-daemon21:45:233
293109975,1cyclictest21666-21missed_timers22:55:173
293109974,2cyclictest674-21dbus-daemon23:20:113
293109974,2cyclictest649-21polkitd22:25:293
293069974,2cyclictest1002-21snmpd19:45:362
292939977,0cyclictest25987-21kworker/0:220:27:260
292939977,0cyclictest21871-21kworker/0:020:11:300
292939977,0cyclictest1724-21kworker/0:020:41:280
292939977,0cyclictest11936-21kworker/0:121:05:440
293109964,1cyclictest12427-21cat19:45:153
293109964,1cyclictest1002-21snmpd20:51:393
293109964,1cyclictest1002-21snmpd19:13:303
293109963,2cyclictest1002-21snmpd20:48:253
293109963,2cyclictest1002-21snmpd20:05:003
293109963,2cyclictest1002-21snmpd19:58:423
293109963,2cyclictest1002-21snmpd19:41:473
293109963,2cyclictest1002-21snmpd19:27:293
293109963,2cyclictest1002-21snmpd19:15:263
293069964,1cyclictest660-21avahi-daemon20:20:012
293069964,1cyclictest660-21avahi-daemon19:50:002
293069964,1cyclictest33-21ksoftirqd/221:10:012
293069964,1cyclictest33-21ksoftirqd/220:40:012
293069964,1cyclictest33-21ksoftirqd/219:59:592
293069963,2cyclictest27989-21crond20:25:002
293069963,2cyclictest1002-21snmpd20:31:192
293069961,1cyclictest131rcu_sched19:44:592
293069960,5cyclictest0-21swapper/220:28:182
293069960,5cyclictest0-21swapper/219:33:272
292999965,0cyclictest0-21swapper/119:48:111
292999964,1cyclictest674-21dbus-daemon20:20:011
292999964,1cyclictest674-21dbus-daemon19:30:011
292999964,1cyclictest1002-21snmpd20:21:161
292999963,2cyclictest1002-21snmpd20:07:311
292999963,2cyclictest1002-21snmpd19:42:481
292999963,2cyclictest1002-21snmpd19:12:421
292999960,5cyclictest0-21swapper/120:40:421
292939966,0cyclictest9252-21kworker/0:219:40:390
292939966,0cyclictest29191-21kworker/0:119:18:070
292939966,0cyclictest18032-21kworker/0:120:01:160
292939966,0cyclictest1724-21kworker/0:020:51:220
292939966,0cyclictest101ktimersoftd/020:59:130
292939963,2cyclictest699-21gdbus20:20:010
292939963,2cyclictest1002-21snmpd20:05:580
292939962,1cyclictest131rcu_sched19:15:000
293109955,0cyclictest401ktimersoftd/319:51:173
293109954,0cyclictest0-21swapper/320:55:223
293109954,0cyclictest0-21swapper/320:41:033
293109954,0cyclictest0-21swapper/320:15:133
293109953,1cyclictest1705-21sendmail21:00:153
293109953,1cyclictest12676-21cat21:05:133
293109953,1cyclictest1002-21snmpd20:35:133
293109953,1cyclictest1002-21snmpd20:27:383
293109953,1cyclictest1002-21snmpd20:20:103
293109953,1cyclictest1002-21snmpd20:02:043
293109953,1cyclictest1002-21snmpd19:36:393
293109953,1cyclictest0-21swapper/319:20:123
293109952,2cyclictest1002-21snmpd20:32:283
293069954,0cyclictest0-21swapper/220:35:372
293069953,1cyclictest8592-21cat20:55:142
293069953,1cyclictest624-13audispd21:00:242
293069953,1cyclictest22388-21df20:10:112
293069953,1cyclictest1002-21snmpd20:52:322
293069953,1cyclictest1002-21snmpd20:45:402
293069953,1cyclictest1002-21snmpd20:06:152
293069953,1cyclictest1002-21snmpd20:01:192
293069953,1cyclictest1002-21snmpd19:37:002
293069953,1cyclictest1002-21snmpd19:27:242
293069953,1cyclictest1002-21snmpd19:20:352
293069953,1cyclictest1002-21snmpd19:10:272
292999953,1cyclictest6563-21cat20:50:131
292999953,1cyclictest620-17auditd21:09:571
292999953,1cyclictest18540-21cat20:00:131
292999953,1cyclictest1002-21snmpd20:55:481
292999953,1cyclictest1002-21snmpd20:46:011
292999953,1cyclictest1002-21snmpd20:34:471
292999953,1cyclictest1002-21snmpd20:25:401
292999953,1cyclictest1002-21snmpd20:11:421
292999953,1cyclictest1002-21snmpd19:58:091
292999953,1cyclictest1002-21snmpd19:54:401
292999953,1cyclictest1002-21snmpd19:23:141
292999953,1cyclictest1002-21snmpd19:18:351
292999950,0cyclictest0-21swapper/121:02:311
292999950,0cyclictest0-21swapper/119:37:021
292939954,0cyclictest25987-21kworker/0:220:35:120
293109942,1cyclictest1002-21snmpd19:30:083
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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