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2026-08-11 - 05:56
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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 Tue Aug 11, 2026 00:45:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491225160,53phc2sys0-21swapper/319:06:333
326052220154,21sleep20-21swapper/219:08:312
324592206173,22sleep10-21swapper/119:06:461
326352202169,22sleep00-21swapper/019:08:530
2428221730,5sleep174599cyclictest00:25:221
3273821020,1sleep032737-21cut22:30:160
744996428,5cyclictest9-21ksoftirqd/020:20:010
85692630,2sleep00-21swapper/021:40:170
74799639,17cyclictest1300-21snmpd22:05:213
74799637,16cyclictest9378-21/usr/sbin/munin20:35:253
744996325,4cyclictest9-21ksoftirqd/000:30:000
744996324,8cyclictest9-21ksoftirqd/022:25:280
744996324,6cyclictest9-21ksoftirqd/023:05:230
744996224,6cyclictest9-21ksoftirqd/022:20:240
744996224,6cyclictest9-21ksoftirqd/019:45:180
744996223,6cyclictest9-21ksoftirqd/019:50:190
744996223,5cyclictest9-21ksoftirqd/022:50:230
744996223,5cyclictest9-21ksoftirqd/022:00:170
744996223,5cyclictest9-21ksoftirqd/020:00:170
74799617,16cyclictest15774-21timerwakeupswit20:45:283
744996128,4cyclictest9-21ksoftirqd/020:35:270
744996124,6cyclictest9-21ksoftirqd/023:15:200
744996123,5cyclictest9-21ksoftirqd/021:30:300
744996123,5cyclictest9-21ksoftirqd/020:50:140
744996123,5cyclictest9-21ksoftirqd/020:40:250
744996023,8cyclictest9-21ksoftirqd/019:15:150
744996023,6cyclictest9-21ksoftirqd/020:30:130
744996023,6cyclictest9-21ksoftirqd/020:20:240
744996023,5cyclictest9-21ksoftirqd/023:50:170
744996023,5cyclictest9-21ksoftirqd/023:35:170
744996023,5cyclictest9-21ksoftirqd/023:30:230
744996023,5cyclictest9-21ksoftirqd/000:00:230
744996022,6cyclictest9-21ksoftirqd/023:00:140
744996022,6cyclictest9-21ksoftirqd/022:15:140
744996022,6cyclictest9-21ksoftirqd/021:20:190
744996022,6cyclictest9-21ksoftirqd/021:15:240
744996022,6cyclictest9-21ksoftirqd/019:25:140
744996022,6cyclictest9-21ksoftirqd/019:25:140
744996022,6cyclictest9-21ksoftirqd/019:20:290
744996022,6cyclictest9-21ksoftirqd/019:10:150
744996022,5cyclictest9-21ksoftirqd/021:25:220
74799599,9cyclictest4563-21ptp4l21:30:273
744995928,3cyclictest9-21ksoftirqd/000:15:280
744995923,8cyclictest9-21ksoftirqd/021:05:290
744995923,5cyclictest9-21ksoftirqd/023:10:160
744995922,8cyclictest9-21ksoftirqd/022:35:200
744995922,6cyclictest9-21ksoftirqd/000:10:240
744995922,5cyclictest9-21ksoftirqd/021:55:140
744995922,5cyclictest9-21ksoftirqd/021:50:170
744995922,5cyclictest9-21ksoftirqd/021:10:240
744995922,3cyclictest9-21ksoftirqd/023:55:200
744995921,6cyclictest9-21ksoftirqd/022:45:180
744995921,6cyclictest9-21ksoftirqd/020:10:150
744995921,5cyclictest9-21ksoftirqd/023:25:260
744995921,5cyclictest9-21ksoftirqd/022:10:150
744995921,5cyclictest9-21ksoftirqd/022:10:150
744995921,5cyclictest9-21ksoftirqd/022:05:270
744995920,6cyclictest9-21ksoftirqd/019:40:190
744995920,6cyclictest9-21ksoftirqd/000:35:240
744995920,5cyclictest9-21ksoftirqd/023:20:270
744995920,5cyclictest9-21ksoftirqd/000:20:190
744995917,7cyclictest9-21ksoftirqd/000:30:250
74799587,9cyclictest21649-21df_abs21:00:133
74799584,16cyclictest0-21swapper/323:40:173
744995823,8cyclictest9-21ksoftirqd/023:45:000
744995822,6cyclictest9-21ksoftirqd/019:30:270
744995821,6cyclictest9-21ksoftirqd/022:40:270
744995821,6cyclictest9-21ksoftirqd/021:00:180
744995821,5cyclictest9-21ksoftirqd/021:45:170
744995821,5cyclictest9-21ksoftirqd/020:05:190
744995821,5cyclictest9-21ksoftirqd/019:35:230
744995820,6cyclictest9-21ksoftirqd/020:45:140
744995726,6cyclictest9-21ksoftirqd/020:25:120
744995726,3cyclictest9-21ksoftirqd/000:05:210
744995720,5cyclictest9-21ksoftirqd/019:55:210
74799567,8cyclictest20429-21grep20:55:243
744995619,5cyclictest9-21ksoftirqd/020:55:150
74799557,17cyclictest2173-21ps19:10:403
744995519,5cyclictest9-21ksoftirqd/021:35:150
74799547,15cyclictest20175-21cat22:05:013
139391540,1ptp4l391rcuc/300:22:123
139391520,1ptp4l391rcuc/300:11:443
74799517,10cyclictest26738-21sed23:25:183
74799516,17cyclictest28456-21/usr/sbin/munin21:15:283
74799507,15cyclictest7323-21df_abs20:30:143
74799507,11cyclictest26234-21sed00:30:183
747995011,9cyclictest7338-21df_abs22:45:173
745995044,3cyclictest25852-21sh21:10:001
74799496,7cyclictest3945-21ps19:15:213
74799487,8cyclictest18507-21perl19:45:163
74799486,15cyclictest2518-21gnome-shell19:36:593
74799486,12cyclictest15710-21expr19:40:153
744994817,7cyclictest9-21ksoftirqd/023:40:260
74799478,7cyclictest12212-21python00:00:283
74799478,17cyclictest9264-21sed19:25:203
74799478,17cyclictest9264-21sed19:25:203
74799467,7cyclictest24056-21diskstats23:20:163
746994626,17cyclictest33-21ksoftirqd/223:00:002
74499461,5cyclictest9-21ksoftirqd/022:55:160
74799457,15cyclictest30967-21/usr/sbin/munin23:35:243
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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