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2025-06-12 - 14:46
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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
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rackcslot8.osadl.org (updated Thu Jun 12, 2025 00:49:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2450399343145,1cyclictest151rcu_preempt00:06:5118
2482912860,279ptp4l0-21swapper/119:05:381
229362264257,6sleep140-21swapper/1419:06:206
244629925399,1cyclictest125-21ksoftirqd/1821:35:4310
244299917830,130cyclictest0-21swapper/1200:10:234
244299915024,84cyclictest0-21swapper/1200:21:064
24534991480,87cyclictest0-21swapper/3023:52:4324
244299914722,91cyclictest0-21swapper/1223:45:164
244299914722,49cyclictest151rcu_preempt22:40:374
2450399145144,0cyclictest167-21ksoftirqd/2523:51:3518
2449699144142,1cyclictest151rcu_preempt21:41:3117
24534991430,87cyclictest0-21swapper/3021:39:0724
24401991430,85cyclictest0-21swapper/521:47:1527
244869914221,79cyclictest0-21swapper/2219:10:1315
244299914127,66cyclictest0-21swapper/1223:05:134
244109914139,62cyclictest0-21swapper/722:25:4729
244109914139,62cyclictest0-21swapper/722:25:4629
244299914029,69cyclictest0-21swapper/1222:05:544
244299914029,69cyclictest0-21swapper/1222:05:534
244299913930,65cyclictest0-21swapper/1222:39:344
244299913929,69cyclictest0-21swapper/1220:42:454
244109913945,58cyclictest0-21swapper/723:20:1829
245349913858,70cyclictest0-21swapper/3021:33:3224
245349913858,70cyclictest0-21swapper/3021:33:3224
245349913820,75cyclictest0-21swapper/3023:57:0024
244539913862,68cyclictest0-21swapper/1700:17:389
244109913829,68cyclictest0-21swapper/723:48:3729
244109913823,72cyclictest0-21swapper/700:03:3429
24429991371,80cyclictest0-21swapper/1219:53:384
244109913745,55cyclictest0-21swapper/721:16:2729
244109913739,59cyclictest0-21swapper/723:01:3529
24453991350,89cyclictest0-21swapper/1700:05:229
244299913528,59cyclictest0-21swapper/1219:42:084
24429991350,81cyclictest0-21swapper/1219:25:194
244109913531,68cyclictest0-21swapper/721:27:0829
244109913530,64cyclictest0-21swapper/723:55:3429
244109913528,64cyclictest0-21swapper/720:45:1729
244299913445,67cyclictest0-21swapper/1221:46:224
244109913430,68cyclictest0-21swapper/721:00:1629
244109913425,95cyclictest0-21swapper/721:10:2529
243989913493,36cyclictest151rcu_preempt23:15:1626
244299913330,65cyclictest0-21swapper/1222:00:014
244299913330,65cyclictest0-21swapper/1200:33:564
244299913326,63cyclictest0-21swapper/1221:26:284
24398991330,87cyclictest0-21swapper/422:05:1326
24398991330,87cyclictest0-21swapper/422:05:1326
24534991320,82cyclictest0-21swapper/3019:50:0124
244299913227,62cyclictest0-21swapper/1220:30:154
244109913228,65cyclictest0-21swapper/719:35:0129
244299913133,69cyclictest0-21swapper/1222:25:224
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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