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2025-07-12 - 08:28
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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 rack3slot3.osadl.org (updated Sat Jul 12, 2025 00:46:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
28790210693sleep70-21swapper/719:06:019
128501040irq/42-ahci0-21swapper/119:08:481
28839210391sleep60-21swapper/619:06:368
2912029893sleep90-21swapper/919:09:3911
12850950irq/42-ahci0-21swapper/219:08:254
2014050930irq/53-eth0-rx-0-21swapper/519:05:247
2014050930irq/53-eth0-rx-0-21swapper/419:05:506
12850880irq/42-ahci0-21swapper/819:08:3710
2758228782sleep30-21swapper/319:05:215
2887626455sleep110-21swapper/1119:07:053
125250640irq/18-parport00-21swapper/1019:05:232
2878325955sleep00-21swapper/019:05:540
2928999310cyclictest0-21swapper/1120:20:053
2928999310cyclictest0-21swapper/1120:19:543
29246993011cyclictest3634-1kworker/0:0H22:30:110
29289992214cyclictest0-21swapper/1121:14:273
2928999210cyclictest0-21swapper/1121:21:213
2924699200cyclictest0-21swapper/022:11:500
2928899192cyclictest831ksoftirqd/1022:40:302
2928899192cyclictest831ksoftirqd/1000:07:232
29289991817cyclictest2014150irq/54-eth0-tx-21:15:143
29288991817cyclictest831ksoftirqd/1019:15:152
29288991817cyclictest811rcuc/1021:57:582
29288991816cyclictest95072sleep1020:09:112
2928899181cyclictest831ksoftirqd/1022:00:162
2928899181cyclictest831ksoftirqd/1020:55:132
2928899181cyclictest831ksoftirqd/1020:55:132
2928899180cyclictest67912sleep1021:34:062
2928799181cyclictest10821-21taskset22:22:4011
2928799181cyclictest0-21swapper/922:45:1411
2928799181cyclictest0-21swapper/920:11:1211
29284991816cyclictest20848-21qemu-kvm21:09:238
29246991816cyclictest2423-21snmpd20:19:200
2928999170cyclictest0-21swapper/1121:08:173
29288991716cyclictest13165-21perl23:10:172
29288991715cyclictest20485-21snmp_easybox.os21:50:282
2928899170cyclictest99622sleep1000:35:152
2928899170cyclictest8812sleep1000:20:502
2928899170cyclictest831ksoftirqd/1023:30:172
2928899170cyclictest831ksoftirqd/1021:25:162
2928899170cyclictest831ksoftirqd/1020:52:172
2928899170cyclictest831ksoftirqd/1020:52:162
2928899170cyclictest831ksoftirqd/1019:20:112
2928899170cyclictest811rcuc/1022:20:012
2928899170cyclictest80072sleep1023:47:582
2928899170cyclictest80072sleep1023:47:582
2928899170cyclictest7502sleep1023:39:342
2928899170cyclictest7502sleep1023:39:342
2928899170cyclictest72372sleep1022:18:232
2928899170cyclictest61232chrt20:47:032
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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