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2023-06-09 - 00:12

x86 Intel Celeron M @1500 MHz, Linux 5.15.32-rt39 (Profile)

Latency plot of system in rack #6, slot #5
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -n -a0 -t1 -p99 -i200 -h400 -q
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 50 highest latencies:
System rack6slot5.osadl.org (updated Thu Jun 08, 2023 12:43:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
324799106785564,5027cyclictest8574-21kworker/0:011:36:520
324799104595361,5014cyclictest5845-21kworker/0:007:36:400
32479998025165,4622cyclictest28760-21kworker/0:009:04:480
32479997355156,4575cyclictest5845-21kworker/0:007:47:000
32479996565136,4517cyclictest20837-21kworker/0:107:54:360
32479995254934,4577cyclictest8574-21kworker/0:012:19:080
32479995245167,4354cyclictest5845-21kworker/0:007:42:370
32479994104648,4702cyclictest28760-21kworker/0:009:29:430
32479993424774,4557cyclictest6143-21kworker/0:209:58:160
32479992574732,4520cyclictest23482-21kworker/0:210:41:200
32479992014684,4506cyclictest8574-21kworker/0:012:08:350
32479991774690,4476cyclictest23482-21kworker/0:210:14:110
32479991564762,4379cyclictest5845-21kworker/0:007:15:390
32479991544679,4464cyclictest23482-21kworker/0:210:33:370
32479991004656,4439cyclictest28760-21kworker/0:009:31:460
32479988594532,4315cyclictest23482-21kworker/0:210:21:580
32479988544730,4113cyclictest6143-21kworker/0:209:46:510
32479988154652,4113cyclictest564-21kworker/0:111:27:550
32479987694388,4369cyclictest28760-21kworker/0:009:16:040
32479987514475,4265cyclictest28760-21kworker/0:009:12:250
32479986794444,4231cyclictest23482-21kworker/0:211:01:090
32479986794441,4227cyclictest28760-21kworker/0:008:57:160
32479986584432,4215cyclictest564-21kworker/0:111:34:330
32479986214253,4353cyclictest20837-21kworker/0:107:56:210
32479985674468,4094cyclictest8574-21kworker/0:011:55:520
32479985084356,4141cyclictest28760-21kworker/0:008:40:240
32479982244064,4108cyclictest28760-21kworker/0:008:33:490
32479981544327,3775cyclictest6143-21kworker/0:210:03:490
32479980284260,3709cyclictest23482-21kworker/0:211:19:460
32479979704239,3680cyclictest20837-21kworker/0:108:04:090
32479979334217,3674cyclictest23482-21kworker/0:210:20:000
32479979054195,3650cyclictest23482-21kworker/0:210:51:150
32479978134160,3602cyclictest3950-21kworker/0:212:28:010
32479977484018,3671cyclictest10859-21kworker/0:112:36:450
32479977103992,3704cyclictest28760-21kworker/0:009:06:100
32479976893935,3731cyclictest23482-21kworker/0:211:11:310
32479976753779,3836cyclictest20452-21kworker/0:010:07:320
32479976104060,3498cyclictest28760-21kworker/0:008:46:230
32479975944050,3491cyclictest8574-21kworker/0:012:02:230
32479975253812,3662cyclictest28760-21kworker/0:008:54:590
32479973953961,3419cyclictest28760-21kworker/0:009:37:010
32479973853635,3699cyclictest5845-21kworker/0:007:28:480
32479973313610,3707cyclictest28760-21kworker/0:008:25:080
32479973133811,3451cyclictest28760-21kworker/0:009:41:180
32479972063847,3345cyclictest23482-21kworker/0:210:47:160
32479971923539,3602cyclictest20837-21kworker/0:108:08:280
32479970333573,3409cyclictest8574-21kworker/0:012:23:420
32479968733738,3124cyclictest23482-21kworker/0:210:37:290
32479968603760,3022cyclictest8574-21kworker/0:011:45:180
32479968603732,3117cyclictest28760-21kworker/0:008:14:550
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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