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2024-04-24 - 09:03
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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 20 highest latencies:
System rack6slot5.osadl.org (updated Wed Apr 24, 2024 00:43:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3014199113715921,5447cyclictest9538-21kworker/0:222:49:590
3014199113155990,5321cyclictest13947-21kworker/0:119:55:200
3014199111065892,5211cyclictest9538-21kworker/0:222:07:460
3014199103835436,4944cyclictest13947-21kworker/0:120:14:460
301419997805227,4550cyclictest9538-21kworker/0:222:10:470
301419997515214,4534cyclictest13947-21kworker/0:119:33:240
301419997005179,4518cyclictest6408-21kworker/0:023:54:320
301419996865182,4501cyclictest9538-21kworker/0:221:22:100
301419996675106,4521cyclictest9538-21kworker/0:222:25:480
301419996545165,4486cyclictest6408-21kworker/0:000:20:560
301419996415055,4579cyclictest9538-21kworker/0:221:44:100
301419996185147,4468cyclictest9538-21kworker/0:221:27:300
301419996165148,4465cyclictest9538-21kworker/0:222:16:270
301419994674763,4693cyclictest9538-21kworker/0:221:52:520
301419994545065,4386cyclictest6408-21kworker/0:000:06:210
301419992354763,4469cyclictest9538-21kworker/0:221:32:560
301419992014847,4351cyclictest6408-21kworker/0:023:43:390
301419990124753,4256cyclictest13947-21kworker/0:120:56:130
301419989854736,4241cyclictest6408-21kworker/0:000:18:080
301419989504721,4226cyclictest13947-21kworker/0:120:23:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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