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2026-04-18 - 09:53
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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 Sat Apr 18, 2026 00:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
174202590,1sleep0111rcuc/022:02:350
82022580,0sleep30-21swapper/323:05:443
277232580,0sleep20-21swapper/200:06:112
265092570,0sleep30-21swapper/321:38:363
230752570,0sleep00-21swapper/023:15:300
113272570,1sleep011319-21lspci23:14:340
38252560,0sleep10-21swapper/121:39:251
204762560,1sleep020421-21sshd00:39:530
108732550,0sleep30-21swapper/323:46:093
69172540,0sleep30-21swapper/322:29:233
110262540,0sleep10-21swapper/123:40:181
56642530,0sleep00-21swapper/021:34:050
42782530,0sleep10-21swapper/121:33:581
38462530,0sleep30-21swapper/323:33:553
208352530,0sleep20-21swapper/222:27:452
106592530,0sleep20-21swapper/222:15:482
70092520,1sleep27008-21sshd22:10:022
308752520,1sleep1674-21dbus-daemon21:55:241
18772520,0sleep30-21swapper/321:47:283
205502510,0sleep30-21swapper/321:28:233
92582500,0sleep20-21swapper/200:01:092
323162500,0sleep20-21swapper/222:09:272
306232500,1sleep230621-21lspci21:25:342
214302500,0sleep30-21swapper/323:38:233
176602500,0sleep20-21swapper/222:33:022
147692500,0sleep30-21swapper/300:22:303
147692500,0sleep30-21swapper/300:22:293
17472490,0sleep10-21swapper/121:22:081
133202490,0sleep20-21swapper/221:48:282
66582480,2sleep21376899cyclictest23:51:452
238802470,0sleep10-21swapper/122:47:271
233502470,0sleep10-21swapper/100:36:501
234692370,3sleep31377099cyclictest22:14:123
1336123529,4sleep00-21swapper/019:06:180
1352423114,12sleep30-21swapper/319:08:213
133372287,7sleep10-21swapper/119:05:591
318872220,0sleep30-21swapper/322:53:463
234912210,0sleep30-21swapper/323:04:193
92002190,0sleep39194-21lspci23:40:123
132872198,7sleep20-21swapper/219:05:242
125212190,1sleep012518-21lspci23:31:440
73182180,0sleep00-21swapper/022:32:080
263092180,0sleep10-21swapper/121:13:141
121402180,1sleep312138-21lspci22:57:393
121402180,1sleep312138-21lspci22:57:383
320462170,0sleep10-21swapper/122:28:441
125702170,1sleep012568-21sshd21:51:060
121732170,1sleep112168-21sshd22:40:491
218632160,1sleep20-21swapper/223:35:262
139632160,0sleep113960-21grep21:40:141
13768991615,0cyclictest32082-21lspci00:30:592
320602150,1sleep132059-21bash22:37:021
313312150,0sleep00-21swapper/021:29:430
300992150,0sleep30-21swapper/321:33:243
122892150,0sleep10-21swapper/123:06:061
174532140,0sleep10-21swapper/120:35:141
13768991414,0cyclictest321ktimersoftd/220:34:542
13768991413,0cyclictest32719-21lspci23:22:042
13768991413,0cyclictest321ktimersoftd/221:51:522
13768991413,0cyclictest2488-21lspci00:38:052
13768991413,0cyclictest14661-21lspci21:15:422
6722130,0sleep20-21swapper/223:42:192
319462130,0sleep00-21swapper/022:09:250
282622130,0sleep10-21swapper/122:09:061
273732130,0sleep20-21swapper/223:07:272
208912130,0sleep10-21swapper/100:02:171
1376899130,11cyclictest674-21dbus-daemon22:21:172
131492130,0sleep10-21swapper/123:58:251
131072130,0sleep3391rcuc/300:11:283
131072130,0sleep3391rcuc/300:11:283
320492120,1sleep132050-21sshd23:30:331
187872120,2sleep31377099cyclictest00:08:483
1377099120,1cyclictest642-21systemd-logind22:04:493
1377099120,1cyclictest24281-21sshd22:19:493
1377099120,11cyclictest29977-21packagekitd22:33:493
1376899129,2cyclictest0-21swapper/223:16:272
1376899122,1cyclictest131rcu_sched23:55:202
13768991212,0cyclictest321ktimersoftd/220:13:382
13768991211,0cyclictest14376-21lspci00:15:212
13768991211,0cyclictest12089-21lspci23:49:182
1376799120,11cyclictest1-21systemd21:26:441
1376499120,1cyclictest4807-21rm00:07:070
1376499120,1cyclictest25088-21sshd00:30:180
1376499120,1cyclictest17237-21lspci21:37:470
1376499120,1cyclictest0-21swapper/022:50:170
1376499120,11cyclictest0-21swapper/023:48:380
1377099119,1cyclictest22616-21sshd21:20:383
1377099110,10cyclictest0-21swapper/323:28:393
1377099110,10cyclictest0-21swapper/321:53:293
1377099110,0cyclictest9062-21bash22:46:093
1376899119,1cyclictest19134-21sshd22:41:272
1376899119,1cyclictest16391-21grepconf.sh22:46:472
1376899119,1cyclictest11355-21tty00:11:172
1376899119,1cyclictest11355-21tty00:11:162
1376899112,1cyclictest33-21ksoftirqd/221:42:062
1376899112,1cyclictest131rcu_sched21:33:002
1376899111,1cyclictest33-21ksoftirqd/223:27:052
13768991110,0cyclictest24512-21lspci22:55:512
13768991110,0cyclictest24512-21lspci22:55:502
13768991110,0cyclictest0-21swapper/223:03:072
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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