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2026-09-18 - 01:47
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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 Fri Sep 18, 2026 00:43:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10627999660,2cyclictest41-21ksoftirqd/323:34:163
10643998334,49cyclictest0-21swapper/623:34:156
176942780,0sleep60-21swapper/622:34:196
176942780,0sleep60-21swapper/622:34:196
1061799620,49cyclictest4474-21kworker/1:423:34:161
141352550,1sleep014134-21grepconf.sh21:24:210
79262540,0sleep70-21swapper/722:58:557
38302520,0sleep50-21swapper/522:07:515
306042510,2sleep11061799cyclictest22:56:171
274172510,0sleep3391rcuc/322:05:253
1063699500,49cyclictest16763-21kworker/5:223:34:165
10252490,0sleep30-21swapper/321:23:283
287422470,0sleep60-21swapper/622:58:146
286342470,1sleep428629-21sshd23:38:334
110022470,0sleep50-21swapper/500:33:285
1034124725,8sleep60-21swapper/619:03:116
102262470,1sleep449-21ksoftirqd/423:00:524
1020124725,8sleep10-21swapper/119:01:211
46382460,0sleep30-21swapper/322:50:343
235242450,0sleep20-21swapper/200:34:132
14792440,2sleep01061099cyclictest00:15:290
1026424331,8sleep50-21swapper/519:02:065
32042420,0sleep70-21swapper/700:07:437
26742420,0sleep30-21swapper/323:54:253
172782420,0sleep217264-21sshd21:11:012
153122420,0sleep715315-21systemd-cgroups22:32:127
153122420,0sleep715315-21systemd-cgroups22:32:127
107992420,0sleep10-21swapper/122:17:561
304622410,0sleep40-21swapper/400:15:174
299132410,0sleep3401ktimersoftd/322:27:113
253312410,0sleep00-21swapper/023:48:060
207112410,0sleep60-21swapper/622:28:346
20082410,0sleep70-21swapper/723:00:237
129812410,0sleep60-21swapper/623:14:326
1028824128,9sleep70-21swapper/719:02:247
1024424129,8sleep00-21swapper/019:01:530
1021724128,9sleep40-21swapper/419:01:334
9602400,0sleep30-21swapper/321:27:203
40242400,0sleep10-21swapper/123:25:321
238952400,0sleep70-21swapper/722:47:587
1010424029,8sleep20-21swapper/219:00:022
10621993938,1cyclictest13550irq/24-ahci[00023:34:152
1009623927,8sleep30-21swapper/318:59:553
93952380,0sleep60-21swapper/621:24:036
10645993838,0cyclictest16192-21kworker/7:223:34:167
89262370,0sleep00-21swapper/022:23:480
103042370,0sleep50-21swapper/500:02:205
264402350,1sleep21-21systemd22:01:392
8342340,1sleep7711rcuc/723:11:527
76622320,0sleep00-21swapper/022:06:100
1061099279,0cyclictest0-21swapper/023:34:150
1063199260,25cyclictest11863-21kworker/4:323:34:154
1064399236,4cyclictest65-21ksoftirqd/621:37:226
266212220,0sleep30-21swapper/323:57:383
10627992218,1cyclictest41-21ksoftirqd/323:47:483
1064399217,3cyclictest65-21ksoftirqd/600:06:566
1064399213,6cyclictest65-21ksoftirqd/623:25:056
10643992117,1cyclictest65-21ksoftirqd/600:32:016
10643992111,1cyclictest65-21ksoftirqd/621:31:036
10617992118,2cyclictest25-21ksoftirqd/122:45:561
10643992016,1cyclictest65-21ksoftirqd/600:21:336
294972190,0sleep00-21swapper/022:50:070
1064399199,3cyclictest65-21ksoftirqd/623:56:096
1064399195,1cyclictest65-21ksoftirqd/621:39:476
1064399194,1cyclictest65-21ksoftirqd/623:10:426
10617991912,3cyclictest25-21ksoftirqd/121:13:351
300192180,0sleep50-21swapper/523:07:505
10645991813,2cyclictest73-21ksoftirqd/721:52:287
1064399185,3cyclictest65-21ksoftirqd/621:08:136
1064399184,2cyclictest65-21ksoftirqd/622:48:216
10643991816,1cyclictest65-21ksoftirqd/623:53:136
10643991815,3cyclictest65-21ksoftirqd/621:46:296
10643991815,2cyclictest65-21ksoftirqd/623:45:116
10643991815,2cyclictest65-21ksoftirqd/621:18:346
10643991813,1cyclictest65-21ksoftirqd/621:50:146
1064399181,1cyclictest65-21ksoftirqd/622:59:506
1061799180,17cyclictest2936-21kworker/1:421:36:051
248252170,0sleep2311rcuc/222:48:012
110942170,0sleep20-21swapper/222:27:582
1064399175,1cyclictest65-21ksoftirqd/623:05:486
1064399173,3cyclictest65-21ksoftirqd/621:28:596
1064399172,1cyclictest65-21ksoftirqd/600:27:466
10643991716,1cyclictest65-21ksoftirqd/623:41:236
10643991715,1cyclictest857-21polkitd21:57:346
10643991715,1cyclictest65-21ksoftirqd/622:02:246
10643991714,3cyclictest65-21ksoftirqd/622:17:556
10643991714,3cyclictest65-21ksoftirqd/600:15:466
10643991713,1cyclictest65-21ksoftirqd/622:52:036
10627991716,1cyclictest41-21ksoftirqd/322:39:153
10627991716,1cyclictest41-21ksoftirqd/300:28:403
10627991715,1cyclictest41-21ksoftirqd/321:11:003
10627991715,1cyclictest41-21ksoftirqd/321:08:313
10627991711,3cyclictest41-21ksoftirqd/321:59:463
10617991715,1cyclictest25-21ksoftirqd/123:48:491
10617991715,1cyclictest25-21ksoftirqd/122:40:001
10617991715,1cyclictest25-21ksoftirqd/121:27:331
10617991714,2cyclictest25-21ksoftirqd/100:20:521
211702160,0sleep10-21swapper/100:34:041
127912160,0sleep30-21swapper/322:49:143
10643991615,1cyclictest65-21ksoftirqd/623:34:466
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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