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2025-11-25 - 12:37
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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 100 highest latencies:
System rack3slot3.osadl.org (updated Tue Nov 25, 2025 00:46:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
122501140irq/42-ahci0-21swapper/219:08:264
122501120irq/42-ahci0-21swapper/119:09:131
18459210599sleep80-21swapper/819:09:4610
18279210291sleep110-21swapper/1119:08:013
18203210189sleep70-21swapper/719:06:569
1794529685sleep100-21swapper/1019:05:362
12250900irq/42-ahci0-21swapper/419:06:086
12250850irq/42-ahci0-21swapper/919:08:2311
3066350840irq/52-eth0-rx-0-21swapper/319:09:305
1827326553sleep50-21swapper/519:07:557
1815926553sleep00-21swapper/019:06:250
1810525955sleep60-21swapper/619:05:438
1858499290cyclictest0-21swapper/022:11:060
18632992710cyclictest831ksoftirqd/1022:50:282
18632992710cyclictest831ksoftirqd/1022:50:282
1863299247cyclictest831ksoftirqd/1021:16:342
1863299225cyclictest831ksoftirqd/1019:49:512
1863299225cyclictest831ksoftirqd/1019:49:502
1858499220cyclictest0-21swapper/021:10:340
1863299192cyclictest831ksoftirqd/1020:45:322
18632991817cyclictest831ksoftirqd/1023:00:202
18632991817cyclictest831ksoftirqd/1023:00:192
18632991817cyclictest831ksoftirqd/1020:10:152
18632991817cyclictest0-21swapper/1022:55:152
18632991817cyclictest0-21swapper/1022:55:152
18632991817cyclictest0-21swapper/1019:27:482
18632991816cyclictest32599-21python23:50:272
1863299181cyclictest831ksoftirqd/1021:55:132
1863299181cyclictest831ksoftirqd/1000:35:272
1863299181cyclictest124050irq/18-i801_smb23:35:302
1863299180cyclictest831ksoftirqd/1023:30:172
1863199181cyclictest0-21swapper/922:13:5611
1863199181cyclictest0-21swapper/919:40:1911
18628991816cyclictest8598-21snmp_rack3slot922:35:1310
18628991816cyclictest8598-21snmp_rack3slot922:35:1210
18628991816cyclictest812-21snmp_rack3slot923:51:5010
18628991816cyclictest8078-21snmp_rack3slot920:20:1810
18628991816cyclictest568-21perl20:10:1510
18628991816cyclictest31095-21snmp_easybox.os21:35:2510
18628991816cyclictest28949-21snmp_rack3slot919:20:1610
18628991816cyclictest26000-21snmp_rack3slot923:41:4810
18628991816cyclictest24305-21iostat22:55:2010
18628991816cyclictest24305-21iostat22:55:1910
18628991816cyclictest24093-21snmp_rack3slot919:15:1610
18628991816cyclictest22015-21snmp_rack3slot920:40:1310
18628991816cyclictest21466-21snmp_rack3slot922:06:3610
18628991816cyclictest18556-21munin-run22:50:0110
18628991816cyclictest18556-21munin-run22:50:0110
18628991816cyclictest16617-21df23:30:1510
18628991816cyclictest1640-21yum19:25:3410
18628991816cyclictest14567-21perl19:45:1610
18628991816cyclictest14567-21perl19:45:1610
18628991816cyclictest10577-21snmp_rack3slot919:40:1510
18628991816cyclictest10528-21snmp_rack3slot921:51:4710
1860799183cyclictest0-21swapper/219:35:214
18607991816cyclictest2406-21snmpd00:09:094
18632991716cyclictest831ksoftirqd/1023:40:132
18632991716cyclictest831ksoftirqd/1022:35:162
18632991716cyclictest831ksoftirqd/1022:35:152
18632991716cyclictest831ksoftirqd/1022:25:292
18632991716cyclictest831ksoftirqd/1021:00:112
18632991716cyclictest831ksoftirqd/1019:30:162
18632991716cyclictest7495-1kworker/10:0H00:32:022
18632991716cyclictest22152-21diskstats20:40:142
18632991716cyclictest0-21swapper/1023:15:172
18632991716cyclictest0-21swapper/1022:45:012
18632991716cyclictest0-21swapper/1022:45:002
1863299171cyclictest831ksoftirqd/1000:25:002
1863299170cyclictest95262sleep1020:20:442
1863299170cyclictest831ksoftirqd/1022:20:012
1863299170cyclictest831ksoftirqd/1022:05:162
1863299170cyclictest831ksoftirqd/1021:50:292
1863299170cyclictest831ksoftirqd/1021:45:142
1863299170cyclictest831ksoftirqd/1021:35:002
1863299170cyclictest831ksoftirqd/1021:05:292
1863299170cyclictest831ksoftirqd/1020:55:312
1863299170cyclictest831ksoftirqd/1020:08:102
1863299170cyclictest831ksoftirqd/1019:10:142
1863299170cyclictest831ksoftirqd/1000:25:162
1863299170cyclictest81032sleep1000:00:432
1863299170cyclictest4862chrt23:07:262
1863299170cyclictest43452chrt20:15:172
1863299170cyclictest31932sleep1021:41:052
1863299170cyclictest314362sleep1020:51:342
1863299170cyclictest3066350irq/52-eth0-rx-23:55:372
1863299170cyclictest3066350irq/52-eth0-rx-22:30:192
1863299170cyclictest3066350irq/52-eth0-rx-22:10:152
1863299170cyclictest3066350irq/52-eth0-rx-21:25:292
1863299170cyclictest3066350irq/52-eth0-rx-19:40:162
1863299170cyclictest3066350irq/52-eth0-rx-19:36:012
1863299170cyclictest305132sleep1019:21:362
1863299170cyclictest297522sleep1023:48:292
1863299170cyclictest282572sleep1021:30:512
1863299170cyclictest268142sleep1019:15:472
1863299170cyclictest259362sleep1022:15:082
1863299170cyclictest244302sleep1020:00:052
1863299170cyclictest244302sleep1020:00:042
1863299170cyclictest235972sleep1019:55:532
1863299170cyclictest211232sleep1021:22:502
1863299170cyclictest200062chrt19:51:272
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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