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2026-03-18 - 14:56
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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 18, 2026 12:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1536521010,0sleep015364-21/usr/sbin/munin09:55:130
93982930,2sleep3669399cyclictest10:04:583
253862840,0sleep01002-21snmpd10:03:110
293052830,0sleep11-21systemd12:37:271
176672590,0sleep00-21swapper/011:49:480
311402570,0sleep331139-21bash10:47:593
213162570,0sleep30-21swapper/311:09:013
59682560,1sleep2674-21dbus-daemon10:37:402
145742560,0sleep014544-21sshd10:22:040
41932540,1sleep34173-21sshd09:54:043
322142530,0sleep30-21swapper/311:12:393
25752530,0sleep00-21swapper/009:28:260
287922520,1sleep328795-21bash12:04:263
223562520,0sleep20-21swapper/211:47:212
139822510,0sleep00-21swapper/011:19:210
97952500,0sleep09569-21sshd10:35:140
57622500,0sleep1231rcuc/112:05:121
320812500,1sleep332069-21sshd10:56:123
320812500,1sleep332069-21sshd10:56:123
227652500,0sleep30-21swapper/310:13:153
195292500,1sleep233-21ksoftirqd/211:44:262
91602490,1sleep19159-21sshd11:57:141
8422490,0sleep10-21swapper/111:53:501
144742490,0sleep20-21swapper/212:08:412
8682480,0sleep30-21swapper/310:42:433
49102480,0sleep20-21swapper/209:47:152
156012480,0sleep215605-21cpuspeed_turbos07:30:122
171012470,0sleep1231rcuc/110:22:171
247472440,0sleep10-21swapper/111:36:351
230482430,0sleep10-21swapper/110:16:421
248112390,0sleep00-21swapper/010:13:270
266512310,0sleep326652-21bash10:20:193
651323025,3sleep00-21swapper/007:09:290
63372297,7sleep30-21swapper/307:07:203
278972240,1sleep1674-21dbus-daemon10:45:001
61932226,4sleep20-21swapper/207:05:312
476922110,7sleep10-21swapper/107:05:101
273372200,0sleep20-21swapper/210:55:482
273372200,0sleep20-21swapper/210:55:472
96402190,2sleep1667399cyclictest10:08:231
48342190,0sleep30-21swapper/311:45:503
302302180,0sleep00-21swapper/012:32:020
669399170,1cyclictest1-21systemd12:11:033
669399170,1cyclictest0-21swapper/309:18:013
152912170,1sleep0111rcuc/012:36:140
669399163,7cyclictest660-21avahi-daemon11:26:183
669399163,6cyclictest674-21dbus-daemon12:24:003
669399160,1cyclictest24747-21sshd09:21:043
669399160,1cyclictest0-21swapper/310:51:543
38612160,0sleep10-21swapper/111:43:051
170922160,0sleep20-21swapper/211:55:102
669399150,1cyclictest6621-21bash10:35:023
669399150,1cyclictest31772-21bash11:53:423
6681991514,0cyclictest1006-21lspci10:48:112
667399151,5cyclictest674-21dbus-daemon11:15:221
667399150,1cyclictest17805-21lspci10:30:271
210592150,0sleep30-21swapper/309:38:393
197752150,0sleep3391rcuc/311:00:373
669399140,3cyclictest674-21dbus-daemon10:06:133
669399140,2cyclictest674-21dbus-daemon12:30:103
669399140,1cyclictest23263-21sshd12:36:553
667399146,1cyclictest25-21ksoftirqd/110:29:251
267072140,0sleep00-21swapper/012:01:250
258872140,0sleep20-21swapper/211:28:322
223632140,0sleep022361-21bash09:38:480
217122140,0sleep00-21swapper/012:06:310
10182140,0sleep00-21swapper/011:40:070
669399133,6cyclictest674-21dbus-daemon10:25:473
669399130,2cyclictest674-21dbus-daemon11:38:503
669399130,2cyclictest674-21dbus-daemon11:31:293
669399130,2cyclictest27959-21sshd10:17:133
669399130,2cyclictest13780-21sshd09:55:053
669399130,1cyclictest1-21systemd12:28:453
669399130,1cyclictest0-21swapper/310:32:223
669399130,0cyclictest0-21swapper/308:30:143
6681991313,0cyclictest527-40kipmi011:24:402
6681991312,0cyclictest4257-21lspci11:02:052
6681991312,0cyclictest29784-21lspci10:42:252
6681991312,0cyclictest12861-21lspci11:13:452
6681991311,1cyclictest10107-21lspci10:32:342
667399135,2cyclictest25-21ksoftirqd/110:41:071
667399131,3cyclictest674-21dbus-daemon11:12:321
6673991311,1cyclictest1026-21sshd11:00:171
667399130,1cyclictest0-21swapper/111:47:361
667399130,12cyclictest0-21swapper/112:19:071
666599130,1cyclictest14543-21bash10:30:140
55792130,1sleep15572-21lspci10:59:311
55792130,1sleep15572-21lspci10:59:301
254912130,0sleep20-21swapper/210:28:282
669399125,6cyclictest699-21gdbus11:56:503
669399120,1cyclictest674-21dbus-daemon11:40:013
669399120,1cyclictest2992-21bash09:47:023
669399120,1cyclictest24067-21bash12:15:023
669399120,1cyclictest21499-21systemd-cgroups09:26:013
669399120,1cyclictest14192-21systemd-cgroups09:30:183
669399120,1cyclictest1-21systemd12:07:103
669399120,1cyclictest1-21systemd11:15:333
669399120,1cyclictest1-21systemd09:43:533
669399120,1cyclictest0-21swapper/311:22:053
6681991211,0cyclictest15801-21lspci10:12:282
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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