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2025-04-21 - 10:43
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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 Mon Apr 21, 2025 00:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
137191214168,34phc2sys0-21swapper/319:07:153
286542202169,22sleep10-21swapper/119:08:511
286332202169,22sleep00-21swapper/019:08:340
284142202170,22sleep20-21swapper/219:05:432
136991810,1ptp4l391rcuc/319:10:123
2903599680,25cyclictest3990-21awk21:45:000
2903599661,23cyclictest29741-21df21:30:090
2903599660,23cyclictest17430-21sed22:20:010
2903599651,22cyclictest20654-21cstates22:30:090
2903599630,24cyclictest8498-21grep21:55:250
2903599630,24cyclictest12601-21cat23:30:160
2903599630,22cyclictest2605-21cat00:29:020
2903599621,22cyclictest8538-21/usr/sbin/munin23:20:220
2903599620,22cyclictest16745-21cat23:40:130
2903599610,23cyclictest28512-21sed20:15:190
2903599610,21cyclictest3687-21cpuspeed_turbos23:10:120
2903599601,21cyclictest14951-21awk20:55:170
2903599600,23cyclictest9005-21awk20:40:280
2903599600,22cyclictest14876-21sed19:45:230
2903599600,21cyclictest25810-21sed00:00:280
108792600,3sleep10-21swapper/123:25:001
2903599590,22cyclictest7329-21sed19:30:240
2903599580,33cyclictest1930-21mailstats23:00:260
2903599580,23cyclictest26380-21sed20:10:280
241762580,6sleep32903899cyclictest00:00:133
136991580,1ptp4l391rcuc/320:40:143
2903599570,25cyclictest29542-21which22:50:200
2903599570,24cyclictest30676-21tr22:55:160
2903599570,21cyclictest19206-21unixbench_singl22:20:280
299082560,2sleep20-21swapper/219:10:202
2903599560,28cyclictest31223-21timedrift00:15:280
2903599551,22cyclictest14258-21df_inode23:35:150
2903599511,20cyclictest30810-21users19:10:280
2903599491,22cyclictest19652-21cstates23:50:170
2903599490,25cyclictest20367-21cat22:30:000
2903599490,23cyclictest11972-21sed20:50:000
2903599490,21cyclictest18415-21cpuspeed_turbos19:55:150
2903599490,21cyclictest18415-21cpuspeed_turbos19:55:150
29037994640,4cyclictest20202-21cron22:30:002
2903599462,27cyclictest27118-21latency_hist00:10:000
2903599461,28cyclictest21621-21cpuspeed_turbos21:10:140
29036994238,2cyclictest25-21ksoftirqd/119:15:011
2903599421,23cyclictest1928-21cstates19:20:150
2903599420,20cyclictest0-21swapper/021:50:170
136991420,0ptp4l401ktimersoftd/319:45:263
2903599415,26cyclictest22720-21cut23:55:210
2903599410,19cyclictest0-21swapper/020:20:290
29036994036,3cyclictest25-21ksoftirqd/122:19:591
29036994035,3cyclictest25-21ksoftirqd/122:00:011
29036993934,3cyclictest25-21ksoftirqd/121:50:001
29036993934,3cyclictest25-21ksoftirqd/121:30:011
2903599390,24cyclictest22286-21ls20:00:270
29036993832,4cyclictest25-21ksoftirqd/100:05:011
29036993832,3cyclictest25-21ksoftirqd/100:00:001
29038993719,15cyclictest29504-21sleep00:14:593
29037993732,3cyclictest6941-21turbostat21:54:592
29037993732,3cyclictest33-21ksoftirqd/221:40:012
2903799371,34cyclictest10922-21cron19:40:012
29036993733,3cyclictest25-21ksoftirqd/121:25:001
29036993733,3cyclictest25-21ksoftirqd/121:05:191
29036993733,3cyclictest25-21ksoftirqd/120:25:001
29036993733,3cyclictest25-21ksoftirqd/119:40:011
29036993732,3cyclictest25-21ksoftirqd/123:10:001
29036993732,3cyclictest25-21ksoftirqd/121:40:011
29036993732,3cyclictest25-21ksoftirqd/120:00:001
29036993732,3cyclictest25-21ksoftirqd/120:00:001
29036993732,3cyclictest25-21ksoftirqd/119:45:001
29036993731,4cyclictest25-21ksoftirqd/123:49:591
29036993731,4cyclictest25-21ksoftirqd/123:10:191
29038993630,4cyclictest41-21ksoftirqd/323:29:483
29038993630,4cyclictest41-21ksoftirqd/323:15:513
29038993630,4cyclictest41-21ksoftirqd/321:07:183
29038993629,4cyclictest41-21ksoftirqd/321:40:073
29037993631,3cyclictest33-21ksoftirqd/222:00:002
29037993630,4cyclictest33-21ksoftirqd/222:40:532
29037993630,4cyclictest33-21ksoftirqd/222:22:592
29037993630,4cyclictest33-21ksoftirqd/219:52:002
29036993632,3cyclictest25-21ksoftirqd/123:00:011
29036993632,2cyclictest25-21ksoftirqd/120:10:001
29036993631,3cyclictest25-21ksoftirqd/122:10:151
29036993631,3cyclictest25-21ksoftirqd/122:10:001
29036993631,3cyclictest25-21ksoftirqd/121:35:011
29036993631,3cyclictest25-21ksoftirqd/121:20:001
29036993631,3cyclictest25-21ksoftirqd/120:40:011
29036993631,3cyclictest25-21ksoftirqd/119:35:001
29036993630,3cyclictest25-21ksoftirqd/123:40:011
29036993630,3cyclictest25-21ksoftirqd/121:55:001
29036993630,3cyclictest25-21ksoftirqd/120:35:011
29036993628,5cyclictest25-21ksoftirqd/120:12:171
2903599363,19cyclictest0-21swapper/019:20:000
29038993529,4cyclictest41-21ksoftirqd/323:30:403
29038993529,4cyclictest41-21ksoftirqd/319:53:253
29038993529,4cyclictest41-21ksoftirqd/319:17:473
29037993529,4cyclictest33-21ksoftirqd/223:32:152
29037993529,4cyclictest33-21ksoftirqd/223:22:412
29037993529,4cyclictest33-21ksoftirqd/221:12:112
29037993529,4cyclictest33-21ksoftirqd/220:10:172
29037993529,4cyclictest33-21ksoftirqd/220:07:442
29037993529,4cyclictest33-21ksoftirqd/219:27:452
29037993529,4cyclictest33-21ksoftirqd/200:39:312
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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