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2025-02-18 - 23:55
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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 Tue Feb 18, 2025 12:49:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1210499322124,3cyclictest151rcu_preempt11:35:351
122299927880,1cyclictest151rcu_preempt10:37:4114
121569926869,192cyclictest151rcu_preempt12:28:2630
121569926869,192cyclictest151rcu_preempt12:28:2630
122219921317,1cyclictest151rcu_preempt12:09:2413
2482912040,196ptp4l0-21swapper/107:08:011
2482912040,196ptp4l0-21swapper/107:08:011
1218499189128,1cyclictest151rcu_preempt09:17:434
121239916630,85cyclictest0-21swapper/408:49:3926
121239916427,129cyclictest0-21swapper/407:50:2726
122729916317,104cyclictest0-21swapper/3111:23:1625
122729915517,95cyclictest0-21swapper/3112:06:0125
121639915031,118cyclictest0-21swapper/911:10:5331
122539914932,85cyclictest0-21swapper/2709:42:5920
122539914730,116cyclictest0-21swapper/2709:20:1720
329891145136,6phc2sys0-21swapper/207:05:2012
329891145136,6phc2sys0-21swapper/207:05:2012
121239914419,74cyclictest0-21swapper/410:38:1626
12272991430,84cyclictest0-21swapper/3108:55:1425
122539914325,112cyclictest0-21swapper/2712:14:3020
122539914325,112cyclictest0-21swapper/2712:14:2920
12123991424,106cyclictest0-21swapper/409:25:5926
121239914144,60cyclictest0-21swapper/410:23:3226
122729914017,20cyclictest0-21swapper/3111:48:5525
12123991393,105cyclictest0-21swapper/407:31:3826
121239913850,58cyclictest0-21swapper/410:03:3226
121239913738,61cyclictest0-21swapper/407:48:4326
121179913776,53cyclictest12094-21cyclictest10:05:0023
122729913617,71cyclictest0-21swapper/3111:52:4025
122729913617,71cyclictest0-21swapper/3111:52:4025
122659913619,96cyclictest6196-21missed_timers11:55:1924
122729913517,73cyclictest0-21swapper/3111:30:1325
12123991353,100cyclictest0-21swapper/411:25:0926
121179913577,47cyclictest0-21swapper/310:54:1023
122539913425,59cyclictest0-21swapper/2710:30:1820
12163991340,81cyclictest0-21swapper/911:04:4431
121239913444,66cyclictest0-21swapper/410:28:0326
12123991342,80cyclictest0-21swapper/411:04:4226
121239913427,63cyclictest0-21swapper/411:14:1626
121239913351,57cyclictest0-21swapper/408:20:4826
121239913336,69cyclictest0-21swapper/411:59:2626
12123991333,129cyclictest0-21swapper/407:15:1326
12123991333,129cyclictest0-21swapper/407:15:1226
121239913328,60cyclictest0-21swapper/408:37:1126
121239913327,60cyclictest0-21swapper/409:45:3326
122659913241,60cyclictest0-21swapper/3007:49:3024
122659913226,63cyclictest0-21swapper/3007:31:2024
121849913220,54cyclictest151rcu_preempt11:50:194
121849913220,54cyclictest151rcu_preempt11:50:194
121239913234,60cyclictest0-21swapper/410:46:0826
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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