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2026-04-15 - 21:38
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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 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
184252610,1sleep318411-21sshd12:01:183
184252610,1sleep318411-21sshd12:01:173
112892570,0sleep00-21swapper/012:17:480
43112560,0sleep30-21swapper/310:00:293
326702560,1sleep032669-21sshd11:51:140
286582540,0sleep30-21swapper/310:57:533
194372540,0sleep30-21swapper/310:54:203
185002540,1sleep118491-21lspci11:24:501
168642520,0sleep11-21systemd10:29:151
162002520,0sleep30-21swapper/311:19:033
14222520,0sleep00-21swapper/012:22:420
59502510,0sleep00-21swapper/010:00:390
269912510,0sleep20-21swapper/211:42:172
240042510,0sleep30-21swapper/312:36:183
299072500,0sleep30-21swapper/311:03:333
276862500,0sleep10-21swapper/111:33:591
228892500,1sleep322885-21lspci10:13:113
194802500,1sleep2311rcuc/211:36:022
151472500,0sleep1241ktimersoftd/112:18:091
288302490,0sleep00-21swapper/010:10:510
193302490,0sleep00-21swapper/009:34:100
172402490,0sleep30-21swapper/310:29:173
46102480,0sleep20-21swapper/209:52:192
108602480,0sleep20-21swapper/212:35:082
320362470,0sleep30-21swapper/309:35:133
291712470,1sleep341-21ksoftirqd/310:19:153
274672470,0sleep00-21swapper/011:14:280
277872460,0sleep30-21swapper/311:53:403
92212420,2sleep22435999cyclictest09:38:532
221692360,0sleep20-21swapper/208:20:162
241742298,7sleep30-21swapper/307:09:073
2395422311,7sleep00-21swapper/007:06:230
2407322211,7sleep10-21swapper/107:07:491
235162229,7sleep20-21swapper/207:05:172
91392190,0sleep30-21swapper/312:32:023
24359991919,0cyclictest527-40kipmi010:44:452
24359991918,0cyclictest321ktimersoftd/211:48:002
97372180,0sleep20-21swapper/210:34:092
308302180,1sleep230833-21grep12:10:532
30282180,0sleep10-21swapper/112:31:281
293482180,0sleep30-21swapper/310:24:493
293482180,0sleep30-21swapper/310:24:483
192232170,0sleep20-21swapper/209:11:012
5032160,1sleep1500-21lspci11:42:481
307802160,0sleep10-21swapper/110:52:301
300232160,0sleep30-21swapper/310:44:113
42332150,1sleep14236-21bash10:17:051
249942150,0sleep20-21swapper/210:35:202
24359991515,0cyclictest321ktimersoftd/211:04:202
2435999150,14cyclictest0-21swapper/212:25:102
224682150,0sleep00-21swapper/009:19:200
85702140,0sleep3391rcuc/312:23:203
327542140,0sleep30-21swapper/309:40:503
24359991413,0cyclictest321ktimersoftd/212:03:042
24359991413,0cyclictest321ktimersoftd/212:03:032
24359991413,0cyclictest27077-21lspci11:56:222
134842140,0sleep20-21swapper/212:15:112
2436099130,1cyclictest23005-21systemd-cgroups10:46:173
2435999133,3cyclictest33-21ksoftirqd/210:47:302
24359991312,0cyclictest321ktimersoftd/209:56:552
24359991312,0cyclictest23444-21lspci12:30:212
2435999130,1cyclictest21253-21bash10:51:402
24354991311,1cyclictest0-21swapper/009:40:490
85362120,0sleep10-21swapper/110:06:241
50082120,0sleep20-21swapper/209:25:032
24360991210,1cyclictest12856-21sshd11:38:183
24359991211,0cyclictest20340-21lspci10:15:392
2435999120,11cyclictest0-21swapper/211:14:212
24358991211,0cyclictest0-21swapper/112:14:241
2435899120,1cyclictest6623-21sshd09:41:241
2435899120,1cyclictest1776-21id11:59:541
2435499120,1cyclictest5218-21grep10:58:390
2435499120,1cyclictest4350-21sshd10:28:090
2435499120,1cyclictest1-21systemd11:45:490
2435499120,11cyclictest25260-21sshd12:13:190
2435499120,11cyclictest0-21swapper/011:29:200
2435499120,11cyclictest0-21swapper/011:20:190
177412120,0sleep30-21swapper/311:47:083
119272120,0sleep00-21swapper/010:48:090
2436099110,10cyclictest0-21swapper/312:12:573
2436099110,10cyclictest0-21swapper/308:10:273
2436099110,0cyclictest0-21swapper/310:06:073
2435999119,1cyclictest33-21ksoftirqd/209:48:102
2435999119,1cyclictest10957-21sshd11:21:202
2435999119,1cyclictest0-21swapper/211:54:512
2435999112,3cyclictest642-21systemd-logind09:31:452
2435999111,1cyclictest121rcu_preempt09:43:492
24359991110,0cyclictest3463-21lspci10:11:302
24359991110,0cyclictest0-21swapper/212:05:412
24359991110,0cyclictest0-21swapper/212:05:402
2435999110,2cyclictest0-21swapper/210:04:552
2435899119,1cyclictest24174-21lspci11:25:161
2435899119,1cyclictest13396-21grep09:36:251
2435899119,1cyclictest0-21swapper/109:33:441
24358991110,0cyclictest0-21swapper/110:10:351
2435899110,10cyclictest0-21swapper/112:03:151
2435899110,10cyclictest0-21swapper/112:03:141
2435899110,10cyclictest0-21swapper/110:45:451
2435899110,10cyclictest0-21swapper/109:29:541
2435899110,0cyclictest0-21swapper/112:38:041
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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