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2026-03-06 - 22:26
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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 rackdslot4.osadl.org (updated Fri Mar 06, 2026 12:45:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591208149,47phc2sys0-21swapper/307:05:073
137662203171,21sleep20-21swapper/207:09:552
135442199166,22sleep00-21swapper/007:07:070
134302199167,21sleep10-21swapper/107:05:401
134991710,1getstats6296-1kworker/3:2H10:38:553
1421599679,17cyclictest23709-21lockfile-remove09:40:000
1421599646,15cyclictest23725-21cat08:35:000
14218996327,12cyclictest41-21ksoftirqd/309:55:263
14218996226,8cyclictest41-21ksoftirqd/312:30:013
14218996129,3cyclictest41-21ksoftirqd/309:00:013
1421599616,15cyclictest30810-21cat12:00:270
14218996030,9cyclictest41-21ksoftirqd/310:15:003
14218996025,8cyclictest41-21ksoftirqd/312:05:193
14218996022,7cyclictest41-21ksoftirqd/307:55:123
1421599605,11cyclictest1450-21sed07:50:000
1421599605,11cyclictest13134-21cut10:20:230
1421599605,11cyclictest13134-21cut10:20:230
14218995929,7cyclictest41-21ksoftirqd/310:00:153
14218995923,7cyclictest41-21ksoftirqd/308:50:113
14218995923,7cyclictest41-21ksoftirqd/308:50:113
14218995921,9cyclictest41-21ksoftirqd/308:15:153
1421599592,16cyclictest0-21swapper/010:25:160
14218995829,5cyclictest41-21ksoftirqd/311:05:163
14218995822,8cyclictest41-21ksoftirqd/312:20:143
14218995822,8cyclictest41-21ksoftirqd/312:20:143
14218995822,8cyclictest41-21ksoftirqd/307:35:263
14218995821,8cyclictest41-21ksoftirqd/311:35:243
14218995820,4cyclictest41-21ksoftirqd/308:30:013
14218995723,4cyclictest41-21ksoftirqd/308:10:243
14218995721,8cyclictest41-21ksoftirqd/311:15:263
1421599574,18cyclictest0-21swapper/009:55:250
135191570,10getstats0-21swapper/309:13:413
14218995628,7cyclictest41-21ksoftirqd/308:20:263
14218995627,8cyclictest41-21ksoftirqd/311:10:133
14218995627,7cyclictest41-21ksoftirqd/308:35:253
14218995626,7cyclictest41-21ksoftirqd/307:25:133
14218995626,4cyclictest41-21ksoftirqd/310:25:203
14218995625,8cyclictest41-21ksoftirqd/309:45:213
14218995625,6cyclictest41-21ksoftirqd/309:30:273
14218995623,8cyclictest41-21ksoftirqd/307:10:243
14218995623,4cyclictest41-21ksoftirqd/310:55:013
14218995623,4cyclictest41-21ksoftirqd/310:55:013
14218995623,3cyclictest41-21ksoftirqd/310:45:183
14218995623,3cyclictest41-21ksoftirqd/307:45:253
14218995622,4cyclictest41-21ksoftirqd/309:15:153
14218995621,4cyclictest41-21ksoftirqd/311:45:233
1421599568,17cyclictest2255-21sed07:50:160
1421599568,10cyclictest14376-21/usr/sbin/munin09:20:130
1421599568,10cyclictest14376-21/usr/sbin/munin09:20:130
1421599563,16cyclictest0-21swapper/012:30:210
1421599562,14cyclictest0-21swapper/009:45:180
14218995526,8cyclictest41-21ksoftirqd/308:05:183
14218995525,4cyclictest41-21ksoftirqd/308:40:243
14218995525,4cyclictest41-21ksoftirqd/308:00:133
14218995524,7cyclictest41-21ksoftirqd/311:40:123
14218995524,10cyclictest41-21ksoftirqd/309:00:273
14218995523,8cyclictest41-21ksoftirqd/309:25:243
14218995522,8cyclictest41-21ksoftirqd/310:15:243
14218995521,4cyclictest41-21ksoftirqd/312:10:133
14218995520,3cyclictest41-21ksoftirqd/307:20:123
1421599557,11cyclictest17374-21cut11:35:160
1421599556,10cyclictest5702-21cat07:55:240
1421599555,10cyclictest2291-21irqrtprio10:00:180
14218995428,7cyclictest41-21ksoftirqd/311:00:273
14218995427,4cyclictest41-21ksoftirqd/309:05:253
14218995423,9cyclictest41-21ksoftirqd/309:35:263
14218995423,4cyclictest41-21ksoftirqd/311:50:163
14218995422,8cyclictest41-21ksoftirqd/309:50:233
14218995422,8cyclictest41-21ksoftirqd/309:50:223
14218995420,7cyclictest41-21ksoftirqd/309:20:113
14218995420,7cyclictest41-21ksoftirqd/309:20:113
1421599546,13cyclictest12896-21ps09:15:240
1421599546,11cyclictest10077-21sed11:20:180
1421599546,11cyclictest10077-21sed11:20:180
1421599545,11cyclictest24815-21irqrtprio11:50:190
1421899533,3cyclictest41-21ksoftirqd/312:40:013
14218995324,8cyclictest41-21ksoftirqd/307:18:393
14218995323,10cyclictest41-21ksoftirqd/311:20:253
14218995323,10cyclictest41-21ksoftirqd/311:20:253
14218995320,4cyclictest41-21ksoftirqd/311:55:133
14218995314,10cyclictest41-21ksoftirqd/307:40:213
1421599537,8cyclictest22823-21proc_pri11:45:230
1421599537,17cyclictest11111-21cut09:15:000
1421599536,15cyclictest16485-21/usr/sbin/munin08:20:210
14218995225,6cyclictest41-21ksoftirqd/312:30:133
14218995224,9cyclictest41-21ksoftirqd/308:30:253
14218995222,3cyclictest41-21ksoftirqd/307:50:233
1421899512,7cyclictest41-21ksoftirqd/310:25:013
1421899512,7cyclictest41-21ksoftirqd/310:25:013
14218995123,7cyclictest41-21ksoftirqd/309:40:123
14218995118,7cyclictest41-21ksoftirqd/307:32:003
1421599518,8cyclictest31554-21apt12:05:110
1421599516,7cyclictest8187-21ssh12:20:240
1421599516,7cyclictest8187-21ssh12:20:240
1421599516,16cyclictest11670-21cpuspeed_turbos08:10:120
1421599514,15cyclictest0-21swapper/008:00:150
14215995111,35cyclictest13391-21sed11:25:260
1421899504,8cyclictest41-21ksoftirqd/310:35:013
14218995013,10cyclictest41-21ksoftirqd/310:57:393
1421599506,8cyclictest26607-21acpi11:55:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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