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2025-05-02 - 12:35
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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 rackdslot3.osadl.org (updated Fri May 02, 2025 00:45:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
269862206172,23sleep00-21swapper/019:09:170
137191206173,22phc2sys0-21swapper/319:07:283
268272202168,23sleep20-21swapper/219:07:462
266612202169,22sleep10-21swapper/119:05:371
1676521820,6sleep32733499cyclictest21:00:283
137191137113,13phc2sys0-21swapper/319:10:013
136991730,1ptp4l13972-21ls23:10:203
299492640,2sleep00-21swapper/020:20:290
33282610,7sleep22733399cyclictest23:55:222
2733299575,6cyclictest19137-21latency_hist00:30:011
27332995723,4cyclictest25-21ksoftirqd/123:30:241
27331995725,6cyclictest9-21ksoftirqd/020:35:270
27331995725,4cyclictest9-21ksoftirqd/021:00:010
2733299561,11cyclictest30640-21sort20:25:011
2733199567,7cyclictest9-21ksoftirqd/022:30:010
27331995624,4cyclictest9-21ksoftirqd/022:35:020
2733299556,7cyclictest20378-21tr21:10:171
27331995525,5cyclictest9-21ksoftirqd/020:30:270
27331995524,3cyclictest9-21ksoftirqd/022:45:000
148572550,2sleep10-21swapper/100:20:161
2733299546,7cyclictest32579-21grep23:50:191
27331995422,6cyclictest9-21ksoftirqd/020:40:280
27331995420,6cyclictest9-21ksoftirqd/022:10:100
27331995417,4cyclictest9-21ksoftirqd/000:20:000
2733299539,41cyclictest12033-21kworker/1:221:45:081
2733299534,7cyclictest32507-21sed20:25:301
27331995325,3cyclictest9-21ksoftirqd/019:15:170
27331995324,3cyclictest9-21ksoftirqd/021:20:240
27331995319,5cyclictest9-21ksoftirqd/023:25:010
27331995224,6cyclictest9-21ksoftirqd/022:35:290
27331995222,4cyclictest9-21ksoftirqd/021:55:280
27331995219,4cyclictest9-21ksoftirqd/023:40:180
2733299513,6cyclictest3690-21mailstats19:25:251
2733299513,6cyclictest31986-21latency_hist21:35:021
2733299513,6cyclictest11896-21grep23:05:271
27331995125,7cyclictest9-21ksoftirqd/021:15:140
27331995124,6cyclictest9-21ksoftirqd/020:25:230
27331995118,4cyclictest9-21ksoftirqd/023:35:010
27331995117,4cyclictest9-21ksoftirqd/020:05:010
27331995116,4cyclictest9-21ksoftirqd/022:55:250
2733299505,6cyclictest2730-21grep20:30:281
2733299505,6cyclictest1046-21ls22:45:151
2733299504,7cyclictest28362-21cat19:10:221
2733299504,5cyclictest30680-21irqrtprio23:45:221
2733299503,6cyclictest4380-21sh21:45:011
2733299503,6cyclictest21628-21latency_hist00:35:021
2733299503,6cyclictest20580-21cstates23:25:141
2733299501,6cyclictest24202-21cut20:10:211
2733299501,17cyclictest8992-21irqrtprio20:45:241
2733199506,3cyclictest9-21ksoftirqd/020:45:180
27331995021,4cyclictest9-21ksoftirqd/020:50:220
27331995020,4cyclictest9-21ksoftirqd/021:00:190
27331995017,4cyclictest9-21ksoftirqd/022:00:270
2733299494,7cyclictest23060-21mailstats00:35:251
27332994920,9cyclictest25-21ksoftirqd/119:42:541
27331994919,6cyclictest9-21ksoftirqd/022:05:170
27331994916,4cyclictest9-21ksoftirqd/021:30:300
124922490,2sleep10-21swapper/122:00:191
2733299484,6cyclictest1302-21date21:35:291
2733299483,6cyclictest7054-21mailstats22:55:261
2733299482,6cyclictest25112-21expr21:20:201
2733199487,3cyclictest9-21ksoftirqd/023:55:210
2733199483,3cyclictest9-21ksoftirqd/022:50:000
27331994817,6cyclictest9-21ksoftirqd/022:50:230
2733299473,6cyclictest8801-21irqrtprio23:00:201
2733299472,7cyclictest241ktimersoftd/123:25:001
2733299472,7cyclictest12944-21/usr/sbin/munin23:10:131
2733299472,6cyclictest14937-21cut19:50:201
27332994720,8cyclictest25-21ksoftirqd/121:52:331
27332994719,4cyclictest25-21ksoftirqd/121:27:381
27332994717,7cyclictest25-21ksoftirqd/122:54:581
2733199474,3cyclictest121rcu_preempt19:14:590
27331994735,2cyclictest9-21ksoftirqd/023:55:000
27331994725,4cyclictest9-21ksoftirqd/020:10:280
27331994718,3cyclictest9-21ksoftirqd/021:25:160
27331994717,9cyclictest9-21ksoftirqd/000:20:200
27331994717,4cyclictest9-21ksoftirqd/021:05:290
2733299467,5cyclictest25-21ksoftirqd/120:50:241
2733299464,6cyclictest17459-21cut19:55:221
2733299463,6cyclictest241ktimersoftd/123:55:251
2733299463,5cyclictest27498-21ptp4l-jitter22:30:251
2733299462,8cyclictest11046-21grep00:10:251
2733299460,7cyclictest15240-21apt-key21:00:011
2733199467,4cyclictest9-21ksoftirqd/020:15:160
27331994622,3cyclictest9-21ksoftirqd/023:35:190
27331994618,9cyclictest9-21ksoftirqd/000:26:260
27331994615,10cyclictest9-21ksoftirqd/000:05:210
2733299453,7cyclictest10745-21grep21:55:261
2733299451,6cyclictest19272-21cstates22:15:141
27332994513,6cyclictest25-21ksoftirqd/123:41:201
27331994524,7cyclictest9-21ksoftirqd/022:15:230
27331994518,8cyclictest9-21ksoftirqd/019:40:220
27331994517,7cyclictest9-21ksoftirqd/022:20:270
2733299444,6cyclictest24832-21ls21:20:001
2733199444,3cyclictest9-21ksoftirqd/000:35:210
27331994433,3cyclictest9-21ksoftirqd/021:35:220
27331994428,9cyclictest9-21ksoftirqd/019:35:200
27331994419,7cyclictest9-21ksoftirqd/019:35:000
27331994417,8cyclictest9-21ksoftirqd/023:46:140
27331994416,7cyclictest9-21ksoftirqd/000:10:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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