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2026-04-15 - 07:58
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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 Apr 15, 2026 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2476921020,0sleep3391rcuc/322:52:263
222422840,2sleep31960399cyclictest22:57:473
261282750,0sleep10-21swapper/122:19:241
21752750,1sleep12174-21sshd21:41:241
77572740,1sleep1231rcuc/123:46:281
298932730,0sleep30-21swapper/321:38:173
26552580,0sleep30-21swapper/323:35:013
180672570,1sleep218068-21bash21:45:282
232612560,0sleep20-21swapper/223:39:322
204112560,0sleep00-21swapper/023:58:440
77772520,0sleep10-21swapper/122:39:591
210902520,0sleep30-21swapper/322:18:593
178302520,2sleep01958099cyclictest00:12:220
47932510,0sleep30-21swapper/322:45:133
216832510,0sleep00-21swapper/000:37:450
48042500,0sleep20-21swapper/221:33:232
294362500,0sleep30-21swapper/323:12:173
210612500,0sleep00-21swapper/022:49:240
290422490,0sleep1241ktimersoftd/123:12:151
253122490,0sleep1241ktimersoftd/122:27:371
316802480,0sleep231681-21grep22:17:062
12662480,0sleep10-21swapper/122:55:581
22312470,0sleep21959999cyclictest00:36:042
34182460,0sleep00-21swapper/022:00:480
290032450,0sleep30-21swapper/323:40:013
184702450,0sleep00-21swapper/000:15:150
1917624028,7sleep30-21swapper/319:06:213
194422269,6sleep00-21swapper/019:09:430
1910122311,7sleep20-21swapper/219:05:242
191792219,7sleep10-21swapper/119:06:231
273542200,0sleep0111rcuc/022:11:100
104482200,0sleep00-21swapper/021:14:340
153112180,2sleep01958099cyclictest23:41:340
262002170,0sleep10-21swapper/121:28:141
19603991714,2cyclictest660-21avahi-daemon00:19:233
84332160,0sleep10-21swapper/121:33:421
70692160,1sleep27065-21mailstats00:00:182
179022160,0sleep20-21swapper/200:23:332
165572160,0sleep10-21swapper/100:12:151
138862160,0sleep10-21swapper/123:33:101
236132150,0sleep10-21swapper/122:13:391
230292150,0sleep00-21swapper/021:23:560
20222150,1sleep22023-21bash22:42:132
105342150,0sleep20-21swapper/221:55:542
210512140,0sleep10-21swapper/100:37:421
179682140,0sleep20-21swapper/221:51:022
145012140,0sleep00-21swapper/023:33:130
208012130,0sleep00-21swapper/022:54:560
1958099130,1cyclictest0-21swapper/000:23:500
1958099130,0cyclictest0-21swapper/000:34:000
172422130,0sleep00-21swapper/022:35:130
310992120,2sleep31960399cyclictest21:32:443
1960399120,1cyclictest5584-21sshd00:28:033
1960399120,11cyclictest26873-21sshd00:02:033
1960399120,11cyclictest18176-21grep21:40:033
1960399120,11cyclictest0-21swapper/322:33:133
19599991211,0cyclictest21510-21lspci22:24:332
19599991210,1cyclictest29839-21lspci22:55:372
19599991210,1cyclictest17551-21lspci23:58:292
1959999120,11cyclictest1345-21sshd21:13:272
1959999120,11cyclictest1-21systemd22:03:262
1959999120,11cyclictest0-21swapper/221:43:562
1959199129,0cyclictest32342-21lspci00:24:491
19591991211,0cyclictest241ktimersoftd/123:26:291
19591991210,1cyclictest8679-21lspci23:43:491
1959199120,1cyclictest6432-21lspci22:06:391
1959199120,11cyclictest9636-21sshd22:40:081
1959199120,11cyclictest1-21systemd21:50:281
19580991210,1cyclictest18261-21bash00:09:400
19580991210,1cyclictest12685-21sshd22:29:200
1958099120,11cyclictest11786-21grepconf.sh21:58:500
156772120,0sleep2311rcuc/223:33:192
1960399110,10cyclictest0-21swapper/321:25:143
1960399110,10cyclictest0-21swapper/300:35:043
1960399110,0cyclictest0-21swapper/323:48:343
1960399110,0cyclictest0-21swapper/321:53:443
1959999110,10cyclictest0-21swapper/223:46:572
1959999110,10cyclictest0-21swapper/223:20:472
1959999110,0cyclictest30378-21sshd23:17:562
1959999110,0cyclictest0-21swapper/221:29:572
1959199119,1cyclictest0-21swapper/122:51:081
1959199110,1cyclictest31356-21bash22:47:281
1959199110,10cyclictest231rcuc/122:31:091
1959199110,10cyclictest0-21swapper/123:38:281
1959199110,10cyclictest0-21swapper/122:22:381
1959199110,10cyclictest0-21swapper/100:07:081
1958099110,10cyclictest0-21swapper/023:51:300
1958099110,10cyclictest0-21swapper/022:08:310
1958099110,0cyclictest0-21swapper/021:44:110
142392110,0sleep214167-21sshd21:22:492
224962100,0sleep10-21swapper/100:26:421
1960399109,0cyclictest0-21swapper/323:56:333
1960399109,0cyclictest0-21swapper/323:25:133
1960399109,0cyclictest0-21swapper/323:03:433
1960399109,0cyclictest0-21swapper/322:42:143
1960399109,0cyclictest0-21swapper/322:05:033
1960399100,0cyclictest0-21swapper/322:13:533
1960399100,0cyclictest0-21swapper/300:23:433
1959999109,0cyclictest0-21swapper/223:28:262
1959999109,0cyclictest0-21swapper/222:08:172
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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