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2026-01-10 - 19:32
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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 Jan 10, 2026 12:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
223132960,0sleep022312-21grep11:19:250
223132960,0sleep022312-21grep11:19:240
155802960,0sleep10-21swapper/112:38:211
94022920,0sleep3401ktimersoftd/310:42:473
85372830,0sleep18538-21sshd12:04:521
205502710,0sleep20-21swapper/211:24:442
175652580,0sleep20-21swapper/210:15:032
136752570,0sleep20-21swapper/212:32:412
243922560,2sleep3677799cyclictest11:46:553
242072540,1sleep024203-21sshd12:06:070
99502530,1sleep29943-21bash10:31:532
304252530,0sleep01026-21sshd09:55:420
88612520,2sleep1676799cyclictest12:32:151
270872520,0sleep20-21swapper/209:45:102
44402510,0sleep30-21swapper/311:26:013
236292510,0sleep30-21swapper/311:19:323
236292510,0sleep30-21swapper/311:19:313
249172500,0sleep00-21swapper/010:52:180
180482500,0sleep20-21swapper/212:38:342
257942490,0sleep20-21swapper/209:26:362
150462490,0sleep20-21swapper/210:04:282
109292490,0sleep30-21swapper/310:04:013
57862480,0sleep35788-21bash09:46:153
306112480,0sleep00-21swapper/012:01:110
296512480,0sleep00-21swapper/010:55:210
94872470,1sleep1231rcuc/110:29:071
247582470,0sleep20-21swapper/209:31:092
217412470,0sleep10-21swapper/111:46:421
189872460,0sleep00-21swapper/011:08:110
137872420,0sleep20-21swapper/210:48:392
236352410,1sleep223633-21lspci11:41:222
235752380,0sleep30-21swapper/312:03:213
63012297,7sleep30-21swapper/307:05:363
134892260,0sleep113488-21bash11:43:181
96072220,1sleep39606-21sshd09:39:543
485922210,7sleep10-21swapper/107:05:011
65712219,7sleep20-21swapper/207:08:592
46312219,7sleep00-21swapper/007:05:000
187972180,1sleep118800-21bash11:27:141
96402170,0sleep20-21swapper/209:53:362
677199170,12cyclictest1-21systemd12:21:032
6767991716,0cyclictest0-21swapper/112:08:231
55962170,1sleep1231rcuc/109:49:461
33052170,0sleep30-21swapper/309:56:173
28492170,1sleep02817-21ntp_states12:15:160
264572170,0sleep00-21swapper/012:14:370
173342170,1sleep2311rcuc/212:11:022
172222170,0sleep00-21swapper/011:51:490
112002170,1sleep0101ktimersoftd/011:32:070
6767991614,1cyclictest23747-21kworker/1:210:58:201
6767991614,1cyclictest23747-21kworker/1:210:54:511
3162160,0sleep20-21swapper/210:22:522
12342160,0sleep00-21swapper/009:35:270
6767991514,0cyclictest26184-21kworker/1:009:30:061
6767991514,0cyclictest16842-21kworker/1:111:30:561
6767991514,0cyclictest12479-21kworker/1:412:21:121
6767991513,1cyclictest11908-21kworker/1:010:37:421
63352150,2sleep2321ktimersoftd/211:34:292
277882150,0sleep00-21swapper/010:05:440
110772150,1sleep3391rcuc/310:34:463
677799143,3cyclictest41-21ksoftirqd/311:07:093
6767991413,0cyclictest4090-21lspci10:20:211
6767991413,0cyclictest23205-21kworker/1:110:47:461
6767991412,1cyclictest11908-21kworker/1:010:33:541
67152140,0sleep00-21swapper/012:23:540
43172140,0sleep20-21swapper/209:56:242
169552140,0sleep2321ktimersoftd/212:27:272
106692140,0sleep10-21swapper/109:29:391
87702130,0sleep00-21swapper/011:29:100
6777991311,0cyclictest41-21ksoftirqd/312:07:213
677799130,12cyclictest0-21swapper/309:34:203
6767991312,0cyclictest31781-21kworker/1:212:18:031
6767991312,0cyclictest26184-21kworker/1:009:35:171
6767991312,0cyclictest20215-21kworker/1:209:00:171
6767991312,0cyclictest19229-21kworker/1:010:00:571
6767991312,0cyclictest13673-21lspci11:05:011
6767991311,1cyclictest26476-21kworker/1:109:50:331
6760991311,1cyclictest25840-21sshd10:12:260
67482130,0sleep10-21swapper/112:26:351
318762130,1sleep2311rcuc/210:25:272
248512130,0sleep224846-21bash11:16:512
248512130,0sleep224846-21bash11:16:502
222572130,0sleep222144-21sshd11:38:332
17012130,0sleep31697-21bash11:53:173
15452130,1sleep21532-21sshd09:35:292
102512130,0sleep10-21swapper/111:59:321
677799126,1cyclictest41-21ksoftirqd/310:54:423
677799123,3cyclictest41-21ksoftirqd/309:19:393
677799123,2cyclictest41-21ksoftirqd/310:39:373
677799121,2cyclictest41-21ksoftirqd/311:41:123
6777991210,1cyclictest0-21swapper/310:11:093
677799120,1cyclictest17404-21lspci10:46:103
677799120,11cyclictest17331-21sshd12:27:293
6771991210,1cyclictest674-21dbus-daemon11:01:132
677199120,1cyclictest10140-21sshd11:12:532
677199120,1cyclictest0-21swapper/211:51:022
677199120,11cyclictest22305-21sshd10:57:332
6767991211,0cyclictest22633-21kworker/1:412:10:481
6767991211,0cyclictest20215-21kworker/1:209:17:281
6767991211,0cyclictest1921-21kworker/1:211:21:021
676799120,11cyclictest0-21swapper/110:40:331
6760991210,1cyclictest24618-21sshd10:49:360
6760991210,1cyclictest10667-21sshd11:21:060
677799119,1cyclictest0-21swapper/311:35:393
677799114,3cyclictest41-21ksoftirqd/312:10:563
677799113,2cyclictest41-21ksoftirqd/311:03:403
677799113,2cyclictest41-21ksoftirqd/310:20:113
677799112,3cyclictest41-21ksoftirqd/309:54:313
677799112,1cyclictest131rcu_sched09:12:423
677799111,3cyclictest41-21ksoftirqd/310:07:103
677799111,1cyclictest41-21ksoftirqd/310:55:153
6777991111,0cyclictest527-40kipmi009:08:563
677799111,0cyclictest15938-21bash12:00:003
6777991110,0cyclictest41-21ksoftirqd/312:21:233
6777991110,0cyclictest41-21ksoftirqd/311:24:293
6777991110,0cyclictest41-21ksoftirqd/310:17:503
677799110,3cyclictest25291-21sshd11:30:283
677799110,1cyclictest8261-21grepconf.sh11:12:443
677799110,10cyclictest0-21swapper/312:37:503
677799110,10cyclictest0-21swapper/309:23:293
677799110,0cyclictest0-21swapper/310:27:493
6771991110,0cyclictest0-21swapper/211:08:522
676799119,1cyclictest11300-21kworker/1:410:11:411
6767991110,0cyclictest25123-21kworker/1:310:07:441
6767991110,0cyclictest24153-21kworker/1:111:03:221
6767991110,0cyclictest1921-21kworker/1:211:12:121
6767991110,0cyclictest0-21swapper/110:16:341
676799110,10cyclictest0-21swapper/111:19:131
676799110,10cyclictest0-21swapper/111:19:131
676099110,10cyclictest0-21swapper/012:39:260
676099110,10cyclictest0-21swapper/010:42:250
676099110,10cyclictest0-21swapper/009:14:050
676099110,0cyclictest0-21swapper/012:31:350
676099110,0cyclictest0-21swapper/008:00:160
677799109,0cyclictest0-21swapper/307:41:593
677799107,2cyclictest41-21ksoftirqd/312:15:263
677799101,3cyclictest41-21ksoftirqd/309:29:263
677799101,2cyclictest41-21ksoftirqd/312:31:283
677799100,9cyclictest0-21swapper/308:31:593
677799100,3cyclictest41-21ksoftirqd/309:41:273
677199109,0cyclictest0-21swapper/209:22:422
677199108,1cyclictest25455-21lspci12:00:422
677199108,1cyclictest1-21systemd09:44:332
676799109,0cyclictest20215-21kworker/1:209:13:591
676799109,0cyclictest13384-21kworker/1:209:40:101
676799109,0cyclictest0-21swapper/109:55:041
676799100,0cyclictest0-21swapper/111:39:231
676799100,0cyclictest0-21swapper/109:21:541
676099109,0cyclictest0-21swapper/011:48:260
676099109,0cyclictest0-21swapper/011:14:360
676099109,0cyclictest0-21swapper/010:19:050
676099109,0cyclictest0-21swapper/008:23:550
676099108,1cyclictest3073-21bash12:26:160
157612100,0sleep20-21swapper/211:46:112
67779990,8cyclictest0-21swapper/308:17:493
67719998,0cyclictest0-21swapper/211:58:132
67719998,0cyclictest0-21swapper/210:42:532
67719998,0cyclictest0-21swapper/209:17:132
67719998,0cyclictest0-21swapper/208:20:222
67719997,1cyclictest15871-21sshd12:08:132
67679997,1cyclictest25-21ksoftirqd/111:50:511
67609998,0cyclictest0-21swapper/011:39:060
67609998,0cyclictest0-21swapper/010:26:350
67609998,0cyclictest0-21swapper/009:43:060
67609998,0cyclictest0-21swapper/009:25:050
67609997,1cyclictest4244-21sshd09:32:260
67719986,1cyclictest30198-21grepconf.sh10:50:022
67719986,1cyclictest12066-21lspci10:37:322
67719985,2cyclictest660-21avahi-daemon10:11:472
67679988,0cyclictest29658-21kworker/1:108:11:561
67679986,1cyclictest13357-21kworker/1:107:35:121
67609988,0cyclictest0-21swapper/010:30:560
67609987,0cyclictest0-21swapper/010:24:260
67609987,0cyclictest0-21swapper/009:45:560
67609987,0cyclictest0-21swapper/008:51:560
67609986,1cyclictest29629-21lspci11:55:360
67609985,2cyclictest674-21dbus-daemon11:01:040
67609985,2cyclictest660-21avahi-daemon11:41:100
67609985,2cyclictest660-21avahi-daemon09:21:170
67779976,0cyclictest0-21swapper/308:07:593
67779976,0cyclictest0-21swapper/307:30:203
67779975,1cyclictest41-21ksoftirqd/307:20:003
67719976,0cyclictest0-21swapper/209:05:132
67719975,1cyclictest24532-21sshd11:25:032
67719974,2cyclictest698-21gdbus12:17:332
67719974,2cyclictest660-21avahi-daemon10:05:422
67679977,0cyclictest15633-21kworker/1:008:50:141
67679977,0cyclictest13357-21kworker/1:107:25:181
67609976,0cyclictest0-21swapper/008:55:160
67609976,0cyclictest0-21swapper/007:53:560
67609975,1cyclictest6681-21systemd-cgroups10:00:090
67609975,1cyclictest660-21avahi-daemon10:35:480
67609975,1cyclictest660-21avahi-daemon09:17:170
67609974,2cyclictest723-21gdbus09:51:070
67779965,0cyclictest41-21ksoftirqd/307:40:013
67779964,1cyclictest7502-21crond08:30:003
67779964,1cyclictest41-21ksoftirqd/308:15:013
67779963,2cyclictest1002-21snmpd08:47:123
67779963,2cyclictest1002-21snmpd08:40:343
67779963,2cyclictest1002-21snmpd08:39:103
67779961,1cyclictest41-21ksoftirqd/307:55:003
67719965,0cyclictest0-21swapper/207:10:332
67719964,1cyclictest660-21avahi-daemon09:10:182
67719964,1cyclictest1002-21snmpd08:52:522
67719963,2cyclictest1002-21snmpd08:16:302
67719960,5cyclictest0-21swapper/208:13:032
67719960,0cyclictest0-21swapper/208:47:022
67679964,1cyclictest25-21ksoftirqd/107:50:011
67679963,2cyclictest1002-21snmpd08:59:281
67679963,2cyclictest1002-21snmpd07:13:531
67679960,2cyclictest13853-21/usr/sbin/munin08:45:151
67609965,0cyclictest0-21swapper/008:25:160
67609964,1cyclictest9-21ksoftirqd/008:00:000
67609964,1cyclictest15947-21grep07:30:130
30473260,0sleep00-21swapper/008:05:140
67779954,0cyclictest41-21ksoftirqd/308:50:003
67779954,0cyclictest41-21ksoftirqd/307:50:013
67779953,1cyclictest7856-21ls07:10:173
67779953,1cyclictest4147-21mii-tool08:20:133
67779953,1cyclictest41-21ksoftirqd/308:54:593
67779953,1cyclictest15411-21sadc07:30:003
67779953,1cyclictest1002-21snmpd09:00:133
67779953,1cyclictest1002-21snmpd07:56:243
67779952,2cyclictest1002-21snmpd07:20:233
67719954,0cyclictest0-21swapper/207:57:122
67719953,1cyclictest1705-21sendmail08:00:182
67719953,1cyclictest11937-21grep07:20:132
67719953,1cyclictest1082-21lldpd07:36:082
67719953,1cyclictest1002-21snmpd09:00:492
67719953,1cyclictest1002-21snmpd08:55:242
67719953,1cyclictest1002-21snmpd08:35:582
67719953,1cyclictest1002-21snmpd08:30:322
67719953,1cyclictest1002-21snmpd08:07:172
67719953,1cyclictest1002-21snmpd07:27:492
67719953,1cyclictest1002-21snmpd07:15:042
67719952,2cyclictest1002-21snmpd08:40:012
67719952,2cyclictest1002-21snmpd08:28:122
67719952,2cyclictest1002-21snmpd07:31:312
67719950,0cyclictest0-21swapper/207:47:232
67679954,0cyclictest0-21swapper/107:20:041
67679953,1cyclictest9783-21/usr/sbin/munin08:35:171
67679953,1cyclictest660-21avahi-daemon08:20:011
67679953,1cyclictest24633-21ntpq07:50:161
67679953,1cyclictest15648-21/usr/sbin/munin07:30:111
67679953,1cyclictest1002-21snmpd08:43:401
67679953,1cyclictest1002-21snmpd08:28:001
67679953,1cyclictest1002-21snmpd08:15:091
67679953,1cyclictest1002-21snmpd08:04:061
67679953,1cyclictest1002-21snmpd07:55:071
67679953,1cyclictest1002-21snmpd07:41:311
67679953,1cyclictest1002-21snmpd07:16:221
67679952,2cyclictest1002-21snmpd09:05:411
67679950,4cyclictest0-21swapper/108:30:541
67609953,1cyclictest7443-21cat07:10:130
67609953,1cyclictest1002-21snmpd09:05:440
67609953,1cyclictest1002-21snmpd08:45:060
67609953,1cyclictest1002-21snmpd08:32:070
67609953,1cyclictest1002-21snmpd08:17:570
67609953,1cyclictest1002-21snmpd07:45:160
67609953,1cyclictest1002-21snmpd07:26:500
67609953,1cyclictest1002-21snmpd07:21:140
67609953,1cyclictest1002-21snmpd07:16:010
67609952,2cyclictest1002-21snmpd07:42:590
67609952,2cyclictest1002-21snmpd07:39:590
67609950,0cyclictest0-21swapper/009:01:250
67609950,0cyclictest0-21swapper/008:41:060
67779942,1cyclictest660-21avahi-daemon08:00:013
67719942,1cyclictest24107-21gltestperf07:50:122
67719942,1cyclictest20548-21ntp_kernel_err07:40:142
67679942,1cyclictest30202-21gltestperf08:05:111
67609943,0cyclictest0-21swapper/008:10:050
67609942,1cyclictest10077-21tr08:35:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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