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2026-03-25 - 18:52
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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 rack2slot0.osadl.org (updated Wed Mar 25, 2026 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26132730,0sleep00-21swapper/010:55:060
29992630,0sleep10-21swapper/111:19:471
29992630,0sleep10-21swapper/111:19:461
103182580,0sleep30-21swapper/309:22:323
172782570,1sleep2321ktimersoftd/209:34:212
108542550,0sleep30-21swapper/312:09:553
289592540,0sleep30-21swapper/311:49:213
217922540,1sleep2321ktimersoftd/210:34:532
81562530,0sleep00-21swapper/010:33:430
159692530,0sleep10-21swapper/109:58:551
237392520,1sleep023736-21lspci09:48:370
46642510,0sleep20-21swapper/211:39:032
235972510,1sleep21-21systemd10:59:362
305712500,0sleep10-21swapper/107:40:161
325432490,0sleep00-21swapper/012:39:360
105432490,0sleep00-21swapper/010:39:240
48542480,0sleep30-21swapper/310:44:233
207402470,0sleep00-21swapper/010:10:120
81612450,2sleep21672399cyclictest09:10:382
1654524534,6sleep30-21swapper/307:09:173
101892450,0sleep20-21swapper/212:18:072
41592430,2sleep21672399cyclictest10:16:592
277492420,1sleep227751-21bash11:52:002
139322340,0sleep10-21swapper/111:31:321
164482308,7sleep20-21swapper/207:08:022
165322276,7sleep00-21swapper/007:09:050
162442276,7sleep10-21swapper/107:05:291
175142200,0sleep10-21swapper/109:42:331
16723991918,0cyclictest321ktimersoftd/207:10:112
82522180,0sleep30-21swapper/309:26:053
279992180,0sleep10-21swapper/109:13:051
97112170,0sleep30-21swapper/311:01:073
34412170,0sleep03443-21grepconf.sh09:17:540
257202170,0sleep0111rcuc/010:43:240
226442170,0sleep20-21swapper/211:45:592
16723991715,1cyclictest4931-21lspci09:29:402
1671499178,1cyclictest9-21ksoftirqd/010:49:050
16714991717,0cyclictest527-40kipmi008:30:490
74442160,0sleep10-21swapper/111:36:291
34502160,0sleep20-21swapper/211:03:222
252382160,0sleep025239-21sshd10:26:590
170482160,0sleep10-21swapper/111:40:051
16723991615,0cyclictest321ktimersoftd/209:51:472
16723991615,0cyclictest29745-21lspci10:40:572
16723991615,0cyclictest22749-21lspci10:02:102
1671499166,1cyclictest9-21ksoftirqd/011:50:220
16714991616,0cyclictest31685-21kworker/0:107:57:570
16714991616,0cyclictest101ktimersoftd/008:49:230
167092160,1sleep3699-21gdbus10:53:333
16342160,0sleep00-21swapper/009:52:130
113402160,1sleep011337-21sshd11:23:100
310172150,1sleep2311rcuc/210:49:192
305702150,1sleep330574-21sshd11:30:143
16723991514,0cyclictest321ktimersoftd/210:21:342
16723991514,0cyclictest24106-21lspci10:54:112
1671499155,1cyclictest9-21ksoftirqd/011:34:280
1671499154,1cyclictest9-21ksoftirqd/012:21:200
16714991515,0cyclictest17479-21kworker/0:008:37:290
16714991515,0cyclictest16607-21kworker/0:307:21:130
16714991515,0cyclictest101ktimersoftd/007:41:180
16714991515,0cyclictest101ktimersoftd/007:38:270
138712150,1sleep3401ktimersoftd/312:15:363
1671499146,2cyclictest9-21ksoftirqd/012:26:460
1671499146,1cyclictest9-21ksoftirqd/010:02:430
1671499145,2cyclictest9-21ksoftirqd/011:36:310
1671499145,1cyclictest9-21ksoftirqd/011:47:490
1671499145,1cyclictest9-21ksoftirqd/010:07:160
1671499144,1cyclictest9-21ksoftirqd/012:15:500
1671499144,1cyclictest9-21ksoftirqd/011:58:410
1671499143,2cyclictest649-21polkitd11:41:470
16714991414,0cyclictest25618-21kworker/0:208:51:420
16714991413,0cyclictest101ktimersoftd/008:28:080
102702140,0sleep30-21swapper/309:39:113
102702140,0sleep30-21swapper/309:39:113
289502130,0sleep10-21swapper/112:08:411
26912130,0sleep0101ktimersoftd/007:50:200
237822130,0sleep10-21swapper/111:10:291
16729991310,2cyclictest622-13audispd11:05:463
1672999130,0cyclictest0-21swapper/309:56:273
16723991312,0cyclictest24737-21lspci11:27:002
16723991312,0cyclictest17413-21lspci09:19:362
1672199130,1cyclictest642-21systemd-logind12:27:131
1672199130,12cyclictest0-21swapper/110:58:321
1671499135,1cyclictest9-21ksoftirqd/012:34:190
1671499135,1cyclictest9-21ksoftirqd/010:24:500
1671499134,1cyclictest9-21ksoftirqd/012:09:400
1671499134,1cyclictest9-21ksoftirqd/012:04:030
1671499134,1cyclictest9-21ksoftirqd/011:19:000
1671499134,1cyclictest9-21ksoftirqd/011:18:590
1671499134,1cyclictest9-21ksoftirqd/011:05:210
1671499134,1cyclictest9-21ksoftirqd/010:51:110
1671499134,1cyclictest9-21ksoftirqd/010:15:340
1671499133,1cyclictest9-21ksoftirqd/011:27:290
1671499133,1cyclictest9-21ksoftirqd/011:11:540
16714991313,0cyclictest7492-21kworker/0:208:15:070
16714991313,0cyclictest31685-21kworker/0:108:01:050
1671499130,2cyclictest1-21systemd12:11:230
14322130,0sleep3391rcuc/309:52:123
135992130,0sleep30-21swapper/309:34:023
7722120,0sleep10-21swapper/110:52:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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