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2026-03-15 - 21:25
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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 Sun Mar 15, 2026 12:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
260632202168,22sleep30-21swapper/307:06:353
260972200166,22sleep00-21swapper/007:07:000
260352200166,22sleep10-21swapper/107:06:131
260992198166,21sleep20-21swapper/207:07:022
228942850,1sleep00-21swapper/010:15:220
2633828061,10sleep00-21swapper/007:10:010
26630996434,4cyclictest9-21ksoftirqd/009:35:160
26630996328,6cyclictest9-21ksoftirqd/011:50:010
26630996232,6cyclictest9-21ksoftirqd/007:40:220
26630996231,5cyclictest9-21ksoftirqd/010:35:150
26630996228,6cyclictest9-21ksoftirqd/008:55:220
26630996228,5cyclictest9-21ksoftirqd/010:30:210
26630996228,5cyclictest9-21ksoftirqd/008:20:150
26630996227,6cyclictest9-21ksoftirqd/010:05:220
26630996226,5cyclictest9-21ksoftirqd/008:10:000
26630996226,5cyclictest9-21ksoftirqd/008:10:000
26630996129,7cyclictest9-21ksoftirqd/010:05:000
26630996129,5cyclictest9-21ksoftirqd/007:45:140
26630996129,3cyclictest9-21ksoftirqd/009:50:170
26630996127,6cyclictest9-21ksoftirqd/009:25:250
26630996029,6cyclictest9-21ksoftirqd/008:30:010
26630996029,5cyclictest9-21ksoftirqd/007:50:210
26630996029,3cyclictest9-21ksoftirqd/012:15:260
26630996027,6cyclictest9-21ksoftirqd/011:35:140
26630996027,5cyclictest9-21ksoftirqd/012:05:250
26630996027,5cyclictest9-21ksoftirqd/007:15:180
26630996026,6cyclictest9-21ksoftirqd/011:15:130
26630996025,5cyclictest9-21ksoftirqd/011:25:250
26630996025,5cyclictest9-21ksoftirqd/010:55:140
26630996024,5cyclictest9-21ksoftirqd/009:05:220
26630996023,6cyclictest9-21ksoftirqd/010:10:220
26630995929,8cyclictest9-21ksoftirqd/009:55:240
26630995927,6cyclictest9-21ksoftirqd/010:40:170
26630995927,5cyclictest9-21ksoftirqd/012:25:170
26630995927,5cyclictest9-21ksoftirqd/010:25:140
26630995927,5cyclictest9-21ksoftirqd/008:15:230
26630995925,6cyclictest9-21ksoftirqd/011:50:240
26630995924,5cyclictest9-21ksoftirqd/010:45:170
26630995830,9cyclictest9-21ksoftirqd/010:25:010
26630995829,6cyclictest9-21ksoftirqd/011:55:190
26630995827,5cyclictest9-21ksoftirqd/011:05:110
26630995826,5cyclictest9-21ksoftirqd/012:35:180
26630995826,5cyclictest9-21ksoftirqd/012:35:180
26630995825,6cyclictest9-21ksoftirqd/012:30:140
26630995824,6cyclictest9-21ksoftirqd/011:20:180
26630995824,5cyclictest9-21ksoftirqd/011:30:270
26630995824,5cyclictest9-21ksoftirqd/009:40:130
26630995824,5cyclictest9-21ksoftirqd/009:40:130
26630995824,5cyclictest9-21ksoftirqd/007:35:240
26630995821,6cyclictest9-21ksoftirqd/012:10:220
26630995727,5cyclictest9-21ksoftirqd/011:10:160
26630995726,5cyclictest9-21ksoftirqd/008:45:110
26630995726,4cyclictest9-21ksoftirqd/011:40:140
26630995726,4cyclictest9-21ksoftirqd/007:24:590
26630995724,3cyclictest9-21ksoftirqd/007:30:250
26630995625,5cyclictest9-21ksoftirqd/008:50:190
26630995624,5cyclictest9-21ksoftirqd/012:20:180
26630995624,3cyclictest9-21ksoftirqd/009:23:020
26630995623,5cyclictest9-21ksoftirqd/008:10:270
26630995623,4cyclictest9-21ksoftirqd/008:35:120
26630995622,5cyclictest9-21ksoftirqd/012:00:200
26630995621,5cyclictest9-21ksoftirqd/011:00:180
26630995621,5cyclictest9-21ksoftirqd/011:00:180
26630995526,5cyclictest9-21ksoftirqd/010:50:180
26630995520,5cyclictest9-21ksoftirqd/007:55:230
26630995519,4cyclictest9-21ksoftirqd/009:10:150
26630995428,3cyclictest9-21ksoftirqd/009:33:510
26630995426,7cyclictest9-21ksoftirqd/008:00:180
26630995423,8cyclictest9-21ksoftirqd/009:45:130
26630995423,3cyclictest9-21ksoftirqd/009:05:010
26630995325,4cyclictest9-21ksoftirqd/009:15:270
88622520,6sleep233-21ksoftirqd/209:48:562
26630995230,6cyclictest9-21ksoftirqd/008:40:170
26630995118,3cyclictest9-21ksoftirqd/007:25:130
2663099502,10cyclictest9-21ksoftirqd/008:30:120
134991490,9getstats0-21swapper/310:10:433
2663399481,15cyclictest1726-21/usr/sbin/munin10:40:213
26633994438,3cyclictest14568-21fschecks_count11:05:133
50798430,10rtkit-daemon0-21swapper/107:28:041
26633994336,4cyclictest2243-21fschecks_count09:35:133
26631994336,4cyclictest9029-21cron08:45:011
2663399420,16cyclictest24179-21/usr/sbin/munin10:20:193
2663399418,5cyclictest41-21ksoftirqd/308:28:533
2663399402,8cyclictest21937-21diskstats11:20:123
26631993833,3cyclictest25-21ksoftirqd/112:04:591
26631993833,3cyclictest25-21ksoftirqd/108:00:001
26632993731,4cyclictest33-21ksoftirqd/208:52:482
26631993731,4cyclictest25-21ksoftirqd/112:29:011
138491370,1ptp4l391rcuc/307:11:333
26632993631,3cyclictest33-21ksoftirqd/210:55:012
26632993630,4cyclictest33-21ksoftirqd/212:09:372
26632993630,4cyclictest33-21ksoftirqd/211:56:572
26632993630,4cyclictest33-21ksoftirqd/211:50:002
26632993630,4cyclictest33-21ksoftirqd/210:18:532
26632993630,4cyclictest33-21ksoftirqd/207:48:382
26631993631,3cyclictest21512-21latency_hist10:14:591
26631993630,4cyclictest25-21ksoftirqd/111:42:041
26631993630,4cyclictest25-21ksoftirqd/109:53:171
26633993530,3cyclictest41-21ksoftirqd/307:35:583
26633993528,5cyclictest41-21ksoftirqd/312:36:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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