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2026-04-02 - 04:33
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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 100 highest latencies:
System rack3slot0.osadl.org (updated Thu Apr 02, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
303419912112,36cyclictest0-21swapper/523:15:055
303419911734,64cyclictest24533-21systemd23:55:155
241602870,0sleep20-21swapper/223:21:292
30339998482,1cyclictest1116-21nfsd23:15:053
296412790,0sleep00-21swapper/021:32:260
3033999740,73cyclictest29711-21kworker/3:323:55:143
3034399530,52cyclictest31877-21kworker/u16:323:15:067
283372530,0sleep40-21swapper/423:36:364
28652520,0sleep60-21swapper/621:27:126
304472510,0sleep00-21swapper/000:31:110
3034299510,0cyclictest0-21swapper/623:55:156
30338995151,0cyclictest13550irq/24-ahci[00023:55:152
91072500,0sleep10-21swapper/122:21:211
3032799490,49cyclictest14996-21kworker/0:223:15:050
279832490,2sleep53034199cyclictest22:15:005
265442480,1sleep5686-21dbus-daemon21:32:155
64902470,0sleep30-21swapper/321:27:253
298632460,0sleep50-21swapper/522:24:215
28542460,1sleep42853-21systemd-cgroups23:59:354
3034299452,43cyclictest0-21swapper/623:15:066
83292440,0sleep2321ktimersoftd/200:29:522
201042440,0sleep70-21swapper/700:13:407
150652440,0sleep3784-21runrttasks22:25:233
11942440,0sleep60-21swapper/621:32:406
52032430,0sleep50-21swapper/521:18:065
288392430,0sleep528835-21sshd22:44:395
282942430,0sleep70-21swapper/722:55:477
213592430,1sleep5686-21dbus-daemon00:10:015
15302430,0sleep60-21swapper/622:52:176
106722430,0sleep10-21swapper/122:54:451
102692430,0sleep00-21swapper/021:12:480
17162420,1sleep31665-21sshd22:48:383
17162420,1sleep31665-21sshd22:48:383
52752410,0sleep10-21swapper/122:50:441
52752410,0sleep10-21swapper/122:50:441
38512410,0sleep40-21swapper/422:17:154
307232410,0sleep60-21swapper/621:21:276
30338994141,0cyclictest13550irq/24-ahci[00023:15:062
3013124129,8sleep70-21swapper/719:05:167
3005824122,15sleep10-21swapper/119:04:141
2989224130,8sleep50-21swapper/519:01:545
154762410,0sleep215287-21sshd22:55:022
139722410,0sleep00-21swapper/021:55:410
118962410,0sleep40-21swapper/421:25:574
3014824027,9sleep60-21swapper/619:05:316
2868424027,8sleep00-21swapper/019:01:320
217372400,0sleep50-21swapper/521:57:545
12002400,1sleep2686-21dbus-daemon23:01:342
80492390,0sleep30-21swapper/321:16:273
48402390,0sleep40-21swapper/422:30:214
2999223928,8sleep20-21swapper/219:03:192
2998423928,8sleep30-21swapper/319:03:123
271312390,0sleep30-21swapper/319:56:283
190182390,0sleep00-21swapper/023:47:220
190182390,0sleep00-21swapper/023:47:220
183642390,0sleep118361-21sshd21:57:421
168912390,0sleep50-21swapper/521:42:485
136552390,0sleep70-21swapper/721:14:557
130912390,0sleep50-21swapper/523:04:105
2989123827,8sleep40-21swapper/419:01:534
218902380,1sleep23033899cyclictest21:37:332
30335993736,1cyclictest23280-21kworker/1:623:55:151
248562370,0sleep30-21swapper/300:25:133
115362370,0sleep70-21swapper/721:06:467
206922360,0sleep60-21swapper/622:42:166
30335993533,2cyclictest19993-21kworker/1:123:15:061
3034399320,31cyclictest15978-21kworker/7:023:55:157
67042310,1sleep23033899cyclictest21:18:112
3032799310,30cyclictest0-21swapper/023:55:140
3033599250,2cyclictest7433-21grep00:14:501
3034099240,24cyclictest31974-21kworker/4:523:55:154
3033599240,1cyclictest28487-21sshd21:52:441
30342992310,1cyclictest65-21ksoftirqd/600:15:166
3033599230,2cyclictest9676-21grepconf.sh21:16:311
3033599230,2cyclictest21321-21sshd22:09:021
30327992313,6cyclictest9-21ksoftirqd/000:33:020
3034199223,8cyclictest0-21swapper/500:13:165
3033599220,1cyclictest0-21swapper/123:35:111
92282210,0sleep40-21swapper/422:47:114
92282210,0sleep40-21swapper/422:47:114
3033599210,2cyclictest14481-21sshd23:37:431
30327992113,4cyclictest11141-21kworker/u16:200:19:120
309012200,0sleep70-21swapper/700:10:357
3034299208,1cyclictest65-21ksoftirqd/621:18:006
3034299202,3cyclictest65-21ksoftirqd/600:08:226
30342992016,3cyclictest65-21ksoftirqd/600:33:036
30342992015,3cyclictest492-21systemd-journal23:50:326
30342992015,3cyclictest492-21systemd-journal23:50:326
3034199202,8cyclictest32226-21kill23:33:025
3033599202,7cyclictest686-21dbus-daemon22:29:281
3033599200,3cyclictest7130-21rm22:41:311
3033599200,10cyclictest20211-21sshd22:38:351
3033599200,1cyclictest0-21swapper/122:04:361
3034299198,1cyclictest121rcu_preempt23:21:366
30342991918,1cyclictest65-21ksoftirqd/622:47:546
30342991918,1cyclictest65-21ksoftirqd/622:47:546
30342991916,1cyclictest65-21ksoftirqd/600:23:196
30342991916,1cyclictest492-21systemd-journal21:49:266
30342991915,3cyclictest65-21ksoftirqd/623:59:116
30342991914,1cyclictest65-21ksoftirqd/623:41:366
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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