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2026-07-01 - 16:52
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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 rackdslot4.osadl.org (updated Wed Jul 01, 2026 12:45:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591207172,23phc2sys0-21swapper/307:06:363
307992205170,23sleep00-21swapper/007:08:150
287202202169,22sleep10-21swapper/107:05:101
306242201168,21sleep20-21swapper/207:06:042
1392021440,2sleep30-21swapper/309:50:013
1385918262,10phc2sys0-21swapper/307:10:013
287852630,3sleep028789-21cpuspeed_turbos12:30:130
31369995828,10cyclictest9-21ksoftirqd/010:25:270
3136999525,10cyclictest9-21ksoftirqd/009:40:240
31369995219,4cyclictest9-21ksoftirqd/010:12:060
3136999507,5cyclictest9-21ksoftirqd/009:55:240
3136999505,9cyclictest9-21ksoftirqd/012:15:150
3136999493,6cyclictest9-21ksoftirqd/011:45:210
3136999492,6cyclictest9-21ksoftirqd/008:25:000
3136999492,5cyclictest9-21ksoftirqd/011:20:180
3136999491,6cyclictest9-21ksoftirqd/012:25:120
3136999491,6cyclictest9-21ksoftirqd/011:15:180
3136999491,5cyclictest9-21ksoftirqd/012:05:130
134991490,4getstats3137299cyclictest08:00:003
3136999484,7cyclictest9-21ksoftirqd/010:40:170
3136999483,11cyclictest9-21ksoftirqd/011:30:150
3136999482,6cyclictest9-21ksoftirqd/007:20:130
3136999482,5cyclictest0-21swapper/009:10:130
3136999476,8cyclictest9-21ksoftirqd/007:42:500
3136999473,6cyclictest9-21ksoftirqd/007:50:240
3136999473,5cyclictest9-21ksoftirqd/007:58:010
3136999473,11cyclictest9-21ksoftirqd/009:30:280
3136999473,10cyclictest9-21ksoftirqd/011:40:130
3136999472,6cyclictest9-21ksoftirqd/011:25:190
3136999472,4cyclictest9-21ksoftirqd/011:55:130
3136999471,6cyclictest9-21ksoftirqd/012:23:100
3136999471,6cyclictest9-21ksoftirqd/009:25:230
3136999471,6cyclictest9-21ksoftirqd/009:25:230
3136999465,9cyclictest9-21ksoftirqd/009:25:010
3136999465,9cyclictest9-21ksoftirqd/008:55:160
3136999465,9cyclictest9-21ksoftirqd/008:55:160
3136999465,5cyclictest9-21ksoftirqd/012:00:160
3136999464,9cyclictest9-21ksoftirqd/009:35:220
3136999462,6cyclictest101ktimersoftd/012:10:160
3136999453,9cyclictest9-21ksoftirqd/010:15:240
3136999452,5cyclictest9-21ksoftirqd/008:00:130
3136999451,6cyclictest9-21ksoftirqd/012:35:140
3136999444,8cyclictest9-21ksoftirqd/010:00:240
3136999443,8cyclictest9-21ksoftirqd/010:05:150
3136999443,5cyclictest9-21ksoftirqd/011:10:120
3136999442,6cyclictest9-21ksoftirqd/009:50:260
3136999441,5cyclictest9-21ksoftirqd/008:27:170
3136999441,5cyclictest9-21ksoftirqd/008:27:170
3136999440,7cyclictest9-21ksoftirqd/010:59:000
3136999440,6cyclictest9-21ksoftirqd/011:52:200
138491440,0ptp4l401ktimersoftd/307:40:453
31371994314,28cyclictest0-21swapper/207:20:232
3137199430,41cyclictest0-21swapper/209:45:222
3137099432,38cyclictest4712-21tr08:25:201
3137099432,38cyclictest4712-21tr08:25:191
3137099431,40cyclictest0-21swapper/107:25:231
3136999435,8cyclictest9-21ksoftirqd/007:46:380
3136999431,5cyclictest9-21ksoftirqd/009:00:120
3136999430,7cyclictest9-21ksoftirqd/007:35:420
3136999430,6cyclictest9-21ksoftirqd/011:04:500
134991430,4getstats0-21swapper/310:05:013
3136999424,8cyclictest9-21ksoftirqd/011:05:240
3136999424,8cyclictest0-21swapper/008:10:190
3136999422,6cyclictest9-21ksoftirqd/008:35:150
3136999421,5cyclictest9-21ksoftirqd/010:52:540
3136999420,6cyclictest9-21ksoftirqd/008:49:180
138491420,0ptp4l401ktimersoftd/311:05:283
3137299411,22cyclictest0-21swapper/309:26:413
3137299411,22cyclictest0-21swapper/309:26:413
31371994123,15cyclictest33-21ksoftirqd/211:50:002
31369994138,2cyclictest111rcuc/008:30:220
3136999413,5cyclictest9-21ksoftirqd/009:10:000
31369994112,3cyclictest9-21ksoftirqd/010:22:110
3136999410,5cyclictest9-21ksoftirqd/007:19:050
134991410,2getstats0-21swapper/308:29:593
134991410,2getstats0-21swapper/308:29:593
3136999400,6cyclictest9-21ksoftirqd/011:36:200
134991400,2getstats0-21swapper/310:40:013
3137099399,28cyclictest0-21swapper/109:05:231
3136999395,9cyclictest9-21ksoftirqd/010:45:160
3136999393,9cyclictest9-21ksoftirqd/008:05:150
3136999393,5cyclictest9-21ksoftirqd/008:50:170
3136999392,5cyclictest9-21ksoftirqd/007:10:180
3136999391,5cyclictest9-21ksoftirqd/009:15:240
3136999390,4cyclictest9-21ksoftirqd/008:15:210
138491390,0ptp4l401ktimersoftd/309:35:283
31372993824,12cyclictest41-21ksoftirqd/311:16:383
3137099380,36cyclictest0-21swapper/107:35:231
3136999381,6cyclictest9-21ksoftirqd/007:25:190
138491380,0ptp4l401ktimersoftd/310:58:393
31371993733,3cyclictest33-21ksoftirqd/211:40:012
31371993731,4cyclictest33-21ksoftirqd/212:35:112
31371993731,4cyclictest33-21ksoftirqd/209:10:442
134991370,1getstats26108-1kworker/3:1H09:35:013
31372993630,4cyclictest41-21ksoftirqd/312:27:143
31372993630,4cyclictest41-21ksoftirqd/310:24:183
31372993630,4cyclictest41-21ksoftirqd/309:19:363
31371993630,4cyclictest33-21ksoftirqd/211:32:462
31371993630,4cyclictest33-21ksoftirqd/210:24:102
31371993629,4cyclictest33-21ksoftirqd/212:28:382
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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