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2026-05-25 - 11:37
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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 Mon May 25, 2026 00:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
202132206171,23sleep30-21swapper/319:05:543
204932204171,22sleep20-21swapper/219:08:422
204922204171,22sleep10-21swapper/119:08:411
204082198165,21sleep00-21swapper/019:07:360
3169621600,6sleep02088599cyclictest19:30:190
1601221560,6sleep32088899cyclictest00:25:113
2432121460,7sleep22088799cyclictest20:20:182
312982740,5sleep125-21ksoftirqd/120:35:181
138491670,1ptp4l401ktimersoftd/319:40:143
20885996632,6cyclictest9-21ksoftirqd/023:50:180
20885996629,6cyclictest9-21ksoftirqd/020:00:170
138491660,1ptp4l401ktimersoftd/319:59:213
20885996429,4cyclictest9-21ksoftirqd/019:50:190
20885996238,2cyclictest9-21ksoftirqd/020:15:190
20885996222,6cyclictest9-21ksoftirqd/019:40:180
2088599614,5cyclictest3346-21awk19:40:000
20885996130,4cyclictest9-21ksoftirqd/023:00:280
20885996128,8cyclictest9-21ksoftirqd/020:30:180
20885996027,4cyclictest9-21ksoftirqd/023:45:250
20885996026,4cyclictest9-21ksoftirqd/022:30:230
20885996024,10cyclictest9-21ksoftirqd/023:25:170
12832600,2sleep20-21swapper/220:40:162
20885995929,5cyclictest9-21ksoftirqd/022:55:190
20885995929,5cyclictest9-21ksoftirqd/019:45:180
20885995927,10cyclictest9-21ksoftirqd/020:05:180
20885995926,7cyclictest9-21ksoftirqd/023:10:160
185092590,3sleep30-21swapper/320:10:123
20885995827,3cyclictest9-21ksoftirqd/022:35:140
20885995826,3cyclictest9-21ksoftirqd/021:50:280
20885995826,10cyclictest9-21ksoftirqd/020:35:220
20885995823,3cyclictest9-21ksoftirqd/022:25:170
20885995819,6cyclictest9-21ksoftirqd/022:10:260
20885995724,10cyclictest9-21ksoftirqd/000:35:150
20885995723,3cyclictest9-21ksoftirqd/021:15:140
20885995722,5cyclictest9-21ksoftirqd/023:20:260
20885995637,4cyclictest9-21ksoftirqd/021:34:590
20885995626,6cyclictest9-21ksoftirqd/020:10:160
20885995625,10cyclictest9-21ksoftirqd/022:05:140
20885995527,6cyclictest9-21ksoftirqd/022:00:130
20887995427,9cyclictest33-21ksoftirqd/222:55:162
2088599544,6cyclictest5531-21basename00:04:590
20885995426,5cyclictest9-21ksoftirqd/021:45:010
20885995425,8cyclictest9-21ksoftirqd/022:15:250
20885995418,5cyclictest9-21ksoftirqd/023:30:230
20885995416,6cyclictest9-21ksoftirqd/021:55:130
138491540,1ptp4l401ktimersoftd/323:12:133
323042530,1sleep10-21swapper/119:30:231
20885995325,5cyclictest9-21ksoftirqd/000:10:000
20887995221,6cyclictest33-21ksoftirqd/220:35:142
20887995220,7cyclictest33-21ksoftirqd/220:33:102
20885995219,8cyclictest9-21ksoftirqd/022:41:240
20887995132,11cyclictest33-21ksoftirqd/222:50:252
2088599514,8cyclictest9-21ksoftirqd/022:50:190
20887995026,8cyclictest33-21ksoftirqd/221:15:002
20887995016,8cyclictest33-21ksoftirqd/222:40:162
2088799500,6cyclictest321ktimersoftd/200:25:152
20885995026,7cyclictest9-21ksoftirqd/021:20:240
20885995021,6cyclictest9-21ksoftirqd/022:25:010
2088599501,2cyclictest121rcu_preempt21:35:180
2088599500,9cyclictest9-21ksoftirqd/000:10:260
2088599500,9cyclictest9-21ksoftirqd/000:10:250
138491500,0ptp4l401ktimersoftd/323:19:463
20887994930,10cyclictest33-21ksoftirqd/220:25:132
2088599496,9cyclictest9-21ksoftirqd/020:45:140
2088599495,4cyclictest9-21ksoftirqd/020:25:230
2088599494,7cyclictest9-21ksoftirqd/021:01:180
2088599493,3cyclictest9-21ksoftirqd/019:10:160
2088599490,6cyclictest9-21ksoftirqd/000:25:010
2088599490,6cyclictest20884-21cyclictest23:05:140
138491490,1ptp4l391rcuc/323:25:103
2088799485,7cyclictest33-21ksoftirqd/200:15:142
2088599486,7cyclictest9-21ksoftirqd/023:40:170
2088599485,9cyclictest9-21ksoftirqd/019:55:200
2088599483,9cyclictest9-21ksoftirqd/019:15:270
20885994829,8cyclictest9-21ksoftirqd/022:45:200
2088599482,5cyclictest9-21ksoftirqd/023:35:190
2088599481,8cyclictest9-21ksoftirqd/020:50:270
20885994814,5cyclictest9-21ksoftirqd/019:25:260
2088599480,7cyclictest9-21ksoftirqd/020:55:130
2088799474,6cyclictest33-21ksoftirqd/221:50:012
20887994731,9cyclictest33-21ksoftirqd/200:35:242
2088699470,2cyclictest0-21swapper/123:50:031
2088599472,5cyclictest9-21ksoftirqd/021:10:190
20888994640,4cyclictest28281-21turbostat19:25:013
2088799465,7cyclictest33-21ksoftirqd/220:10:232
2088799465,6cyclictest33-21ksoftirqd/221:30:222
2088799465,5cyclictest33-21ksoftirqd/222:15:212
2088799464,6cyclictest33-21ksoftirqd/221:55:222
2088799464,6cyclictest33-21ksoftirqd/219:30:172
20887994626,10cyclictest33-21ksoftirqd/219:55:272
2088599463,5cyclictest9-21ksoftirqd/023:55:250
2088599461,9cyclictest9-21ksoftirqd/000:34:590
2088599461,9cyclictest9-21ksoftirqd/000:15:140
138491460,0ptp4l401ktimersoftd/321:08:233
2088799452,5cyclictest321ktimersoftd/222:45:142
20887994516,3cyclictest33-21ksoftirqd/220:51:222
2088799450,6cyclictest31158-21df_abs23:50:142
2088599451,5cyclictest9-21ksoftirqd/000:25:150
2088799445,6cyclictest33-21ksoftirqd/222:07:262
2088799445,5cyclictest33-21ksoftirqd/223:45:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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