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2026-04-09 - 07:44
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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 Thu Apr 09, 2026 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
231192590,0sleep323116-21cat20:55:003
5442580,5sleep233-21ksoftirqd/200:19:582
149712570,0sleep10-21swapper/122:44:241
102572570,0sleep20-21swapper/222:32:552
170052560,0sleep30-21swapper/300:24:073
304172540,0sleep10-21swapper/123:02:151
130542540,0sleep30-21swapper/322:16:353
130542540,0sleep30-21swapper/322:16:343
317572530,3sleep0111rcuc/000:19:520
281702530,2sleep11219399cyclictest21:44:481
204942530,0sleep220487-21lspci22:17:142
204942530,0sleep220487-21lspci22:17:132
283012520,0sleep20-21swapper/223:46:142
283012520,0sleep20-21swapper/223:46:132
213832520,1sleep09-21ksoftirqd/021:13:120
265512510,2sleep31219599cyclictest21:50:113
100542510,0sleep00-21swapper/023:41:550
257222500,0sleep20-21swapper/222:12:092
196322490,1sleep01-21systemd23:12:220
163612490,0sleep00-21swapper/023:03:500
259692480,0sleep20-21swapper/223:01:522
160512480,0sleep20-21swapper/223:14:542
121722480,0sleep10-21swapper/100:26:261
217792470,0sleep20-21swapper/221:29:152
185552470,0sleep10-21swapper/122:19:531
185552470,0sleep10-21swapper/122:19:521
136072380,0sleep30-21swapper/321:20:163
276812370,0sleep00-21swapper/023:21:190
198632370,0sleep30-21swapper/323:29:003
1171123624,7sleep30-21swapper/319:05:263
1175923321,7sleep20-21swapper/219:06:012
118532298,7sleep10-21swapper/119:07:131
193022210,1sleep2642-21systemd-logind23:50:572
1172322113,4sleep00-21swapper/019:05:360
26252180,1sleep12621-21sshd22:24:021
129022180,1sleep212901-21bash22:44:132
12192991816,1cyclictest32066-21lspci00:36:260
151102170,0sleep015111-21grep23:36:500
110272170,0sleep00-21swapper/000:29:090
62392160,0sleep30-21swapper/300:00:573
298802160,0sleep20-21swapper/221:44:572
265312160,2sleep31219599cyclictest22:20:283
248352160,0sleep30-21swapper/323:45:553
248352160,0sleep30-21swapper/323:45:543
131482160,1sleep1231rcuc/121:20:141
95272150,0sleep20-21swapper/221:45:542
300842150,0sleep00-21swapper/022:59:290
271142150,0sleep227056-21sshd23:37:532
219562150,0sleep20-21swapper/200:05:072
12192991514,0cyclictest101ktimersoftd/023:05:110
12192991514,0cyclictest0-21swapper/022:52:560
64052140,0sleep20-21swapper/223:22:182
43442140,0sleep30-21swapper/323:44:143
325712140,0sleep1241ktimersoftd/122:59:421
270552140,1sleep327042-21sshd00:33:163
259222140,0sleep10-21swapper/100:33:101
24892140,0sleep10-21swapper/123:05:181
204422140,0sleep30-21swapper/322:33:493
148172140,0sleep10-21swapper/123:42:201
1219499140,13cyclictest0-21swapper/223:59:542
12192991413,0cyclictest16909-21lspci21:38:170
12192991412,1cyclictest12753-21kworker/0:322:47:590
1219299140,1cyclictest0-21swapper/021:49:050
321782130,0sleep10-21swapper/122:01:391
179942130,0sleep10-21swapper/100:38:031
179762130,0sleep10-21swapper/100:15:491
132392130,0sleep00-21swapper/000:34:540
1219599130,1cyclictest6850-21sshd23:22:213
12194991311,1cyclictest867-21grepconf.sh23:05:142
1219399130,1cyclictest1-21systemd22:38:401
1219299130,12cyclictest29217-21bash22:31:450
107982130,0sleep3401ktimersoftd/322:02:373
283462120,0sleep10-21swapper/123:37:591
196142120,0sleep219616-21latency19:25:152
12195991210,1cyclictest7928-21lspci22:54:503
12195991210,1cyclictest32024-21lspci22:56:513
12195991210,1cyclictest3008-21sshd23:55:113
1219599120,11cyclictest21305-21sshd23:31:503
1219599120,11cyclictest0-21swapper/323:38:113
1219599120,11cyclictest0-21swapper/321:36:113
1219599120,11cyclictest0-21swapper/300:35:113
12194991210,1cyclictest4997-21sshd21:56:342
1219499120,1cyclictest0-21swapper/222:09:142
1219499120,11cyclictest7261-21bash23:27:552
1219399120,11cyclictest0-21swapper/121:32:291
1219299129,2cyclictest674-21dbus-daemon22:19:460
1219299129,2cyclictest674-21dbus-daemon22:19:450
12192991211,0cyclictest32550irq/27-ahci[00022:25:580
12192991211,0cyclictest16775-21kworker/0:122:10:110
12192991210,1cyclictest13329-21grep23:25:360
1219299120,1cyclictest11147-21systemd-cgroups00:09:460
1219599119,1cyclictest674-21dbus-daemon23:19:103
1219599119,1cyclictest2609-21bash22:48:513
1219599119,1cyclictest22741-21grep00:27:213
1219599119,1cyclictest17905-21bash23:50:503
12195991110,0cyclictest0-21swapper/322:35:413
12195991110,0cyclictest0-21swapper/322:10:003
1219599110,10cyclictest0-21swapper/322:25:403
12194991110,0cyclictest0-21swapper/223:40:352
12194991110,0cyclictest0-21swapper/221:15:142
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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