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2026-05-30 - 15:52
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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 rack1slot1.osadl.org (updated Sat May 30, 2026 12:45:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
124062215151,22sleep30-21swapper/307:07:433
125272214150,21sleep20-21swapper/207:09:202
122942213156,45sleep00-21swapper/007:06:160
122752205149,42sleep10-21swapper/107:06:011
294852630,0sleep10-21swapper/111:50:211
274982610,0sleep00-21swapper/011:49:240
10862610,0sleep20-21swapper/211:12:332
31952560,1sleep30-21swapper/310:30:213
141122180,0sleep20-21swapper/208:19:542
292072140,0sleep30-21swapper/311:50:193
12666991310,2cyclictest10865-21ssh10:41:112
1265799130,12cyclictest0-21swapper/107:20:141
1266699126,6cyclictest0-21swapper/210:53:442
1266699126,5cyclictest5714-21diskmemload10:35:152
1266699126,5cyclictest17501-21basename09:25:122
12666991210,2cyclictest5714-21diskmemload10:30:112
12666991210,1cyclictest26189-21sendmail-msp10:20:012
12666991210,1cyclictest25223-21grep07:35:012
12657991212,0cyclictest0-21swapper/110:15:111
12673991110,1cyclictest35-21ksoftirqd/308:09:593
1266699119,2cyclictest0-21swapper/212:25:132
12666991110,1cyclictest0-21swapper/209:52:222
1266699111,4cyclictest0-21swapper/211:44:592
1265399119,1cyclictest9-21ksoftirqd/012:40:000
1265399112,4cyclictest9482-21sed09:15:000
325512100,0sleep05714-21diskmemload10:27:100
1267399108,1cyclictest35-21ksoftirqd/312:20:003
1266699109,1cyclictest17242-21gzip07:15:182
1266699109,1cyclictest0-21swapper/212:20:132
1266699109,1cyclictest0-21swapper/211:20:292
1266699109,1cyclictest0-21swapper/211:00:332
1266699109,1cyclictest0-21swapper/209:31:572
1266699109,1cyclictest0-21swapper/208:45:122
1266699109,1cyclictest0-21swapper/208:35:112
1266699109,1cyclictest0-21swapper/208:25:202
1266699108,2cyclictest0-21swapper/207:40:162
1266699106,4cyclictest0-21swapper/210:13:442
1266699106,4cyclictest0-21swapper/210:13:432
1266699106,3cyclictest1029-21snmpd12:00:172
1266699102,7cyclictest15378-21/usr/sbin/munin10:05:132
1266699101,8cyclictest271rcuc/212:37:442
1266699101,8cyclictest25428-21awk09:35:142
1266699100,4cyclictest0-21swapper/210:25:112
1265399108,1cyclictest5714-21diskmemload12:16:080
4703290,0sleep10-21swapper/111:17:221
126739999,0cyclictest35-21ksoftirqd/309:59:163
126739998,1cyclictest35-21ksoftirqd/312:34:593
126739998,1cyclictest35-21ksoftirqd/310:20:013
126739997,1cyclictest35-21ksoftirqd/307:20:123
126739997,1cyclictest1029-21snmpd07:52:393
126739991,7cyclictest8750-21kworker/u8:011:07:443
126669998,1cyclictest0-21swapper/211:46:282
126669998,1cyclictest0-21swapper/211:25:132
126669998,1cyclictest0-21swapper/211:08:182
126669998,1cyclictest0-21swapper/210:20:142
126669998,1cyclictest0-21swapper/209:20:052
126669998,1cyclictest0-21swapper/209:15:332
126669998,1cyclictest0-21swapper/208:40:172
126669998,1cyclictest0-21swapper/207:50:192
126669997,1cyclictest8735-21unixbench_multi08:05:222
126669997,1cyclictest28-21ksoftirqd/208:05:002
126669996,3cyclictest0-21swapper/211:51:282
126669996,2cyclictest0-21swapper/209:46:352
126669996,2cyclictest0-21swapper/209:13:352
126669994,4cyclictest0-21swapper/211:32:572
126669994,4cyclictest0-21swapper/209:40:072
126669993,4cyclictest10694-21expr12:10:132
126669993,4cyclictest0-21swapper/212:05:212
126669991,8cyclictest271rcuc/210:01:002
126669991,8cyclictest271rcuc/207:35:142
126669991,6cyclictest0-21swapper/211:18:192
126669991,1cyclictest28-21ksoftirqd/210:55:422
126669991,0cyclictest28-21ksoftirqd/211:36:322
126579990,4cyclictest0-21swapper/110:05:111
126539998,1cyclictest9-21ksoftirqd/010:16:360
126539994,2cyclictest240-21systemd-journal08:55:000
126539993,3cyclictest21239-21perf08:35:010
126539992,3cyclictest27518-21cat07:40:010
126539991,6cyclictest30077-21/usr/sbin/munin07:45:130
126739987,1cyclictest35-21ksoftirqd/311:35:003
126739987,1cyclictest35-21ksoftirqd/310:40:003
126739986,1cyclictest35-21ksoftirqd/310:04:593
126739986,1cyclictest1029-21snmpd08:48:123
126739980,4cyclictest1029-21snmpd12:35:573
126739980,2cyclictest0-21swapper/310:50:133
126739980,0cyclictest0-21swapper/310:21:343
126669987,1cyclictest2241-21memory09:00:152
126669985,3cyclictest0-21swapper/211:56:372
126669984,3cyclictest0-21swapper/208:55:142
126669981,6cyclictest0-21swapper/212:15:052
126669980,8cyclictest28-21ksoftirqd/209:05:102
126669980,8cyclictest28-21ksoftirqd/208:30:102
126669980,8cyclictest28-21ksoftirqd/208:10:362
126669980,8cyclictest28-21ksoftirqd/207:45:062
126669980,8cyclictest28-21ksoftirqd/207:10:282
126669980,0cyclictest28-21ksoftirqd/212:30:042
126669980,0cyclictest28-21ksoftirqd/210:45:022
126669980,0cyclictest28-21ksoftirqd/209:55:422
126669980,0cyclictest28-21ksoftirqd/208:50:242
126669980,0cyclictest28-21ksoftirqd/208:20:242
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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