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2025-11-30 - 03:58
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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 Sun Nov 30, 2025 00:46:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
122501150irq/42-ahci0-21swapper/119:09:331
29889211397sleep30-21swapper/319:05:465
122501090irq/42-ahci0-21swapper/819:08:5310
30063210895sleep90-21swapper/919:08:0611
30014210894sleep50-21swapper/519:07:257
29946210490sleep110-21swapper/1119:06:313
12250990irq/42-ahci0-21swapper/219:09:394
3022028378sleep100-21swapper/1019:09:302
3066350680irq/52-eth0-rx-0-21swapper/719:07:469
3011926056sleep40-21swapper/419:08:126
3003725955sleep00-21swapper/019:07:440
2993725955sleep60-21swapper/619:06:268
30371993416cyclictest0-21swapper/021:21:140
3037199340cyclictest0-21swapper/022:20:040
3037199340cyclictest0-21swapper/022:19:580
3037199340cyclictest0-21swapper/019:16:010
30371992827cyclictest0-21swapper/019:30:170
30371991918cyclictest0-21swapper/020:14:080
30371991918cyclictest0-21swapper/020:14:070
30371991917cyclictest0-21swapper/020:16:380
3040699181cyclictest0-21swapper/923:19:0811
3040699181cyclictest0-21swapper/921:46:1511
3040699181cyclictest0-21swapper/921:35:2511
3040699181cyclictest0-21swapper/900:25:1911
30395991816cyclictest21964-21qemu-kvm21:09:238
12250180irq/42-ahci0-21swapper/722:20:009
30406991716cyclictest17275-21taskset19:32:1811
3040699170cyclictest0-21swapper/920:20:0111
30397991716cyclictest22319-21snmp_rack3slot921:52:0410
30395991716cyclictest30116-21qemu-kvm19:20:528
30392991715cyclictest2406-21snmpd00:29:425
3039299171cyclictest0-21swapper/320:15:275
3038099171cyclictest0-21swapper/120:30:141
3038099171cyclictest0-21swapper/120:30:131
3038099171cyclictest0-21swapper/119:20:221
3038099171cyclictest0-21swapper/119:15:171
3037199171cyclictest0-21swapper/019:50:330
3037199170cyclictest0-21swapper/019:29:580
271170ksoftirqd/20-21swapper/220:15:204
691160ksoftirqd/80-21swapper/820:15:2010
30406991615cyclictest26827-1kworker/9:0H19:46:1811
30406991615cyclictest0-21swapper/920:55:3211
30406991615cyclictest0-21swapper/919:15:1511
30406991615cyclictest0-21swapper/900:35:2911
3038099161cyclictest0-21swapper/120:10:151
3038099161cyclictest0-21swapper/120:10:151
12250160irq/42-ahci0-21swapper/719:15:479
30406991514cyclictest26827-1kworker/9:0H19:24:5211
30406991513cyclictest502-21chrt21:23:5511
30406991513cyclictest31149-21munin-run00:20:0111
30406991513cyclictest17143-21diskstats22:30:1511
3039699154cyclictest0-21swapper/721:10:029
3039699152cyclictest0-21swapper/719:28:199
3039699150cyclictest0-21swapper/720:25:209
3039299150cyclictest0-21swapper/320:30:025
3039299150cyclictest0-21swapper/320:30:025
3039299150cyclictest0-21swapper/319:40:255
3037199150cyclictest0-21swapper/020:30:150
3037199150cyclictest0-21swapper/020:30:150
12250150irq/42-ahci8479-21latency_hist22:20:011
3066450140irq/53-eth0-tx-0-21swapper/822:19:5810
3066350140irq/52-eth0-rx-32699-21kworker/8:122:20:1110
3066350140irq/52-eth0-rx-0-21swapper/222:20:014
3066350140irq/52-eth0-rx-0-21swapper/222:19:534
3066350140irq/52-eth0-rx-0-21swapper/219:15:454
3066350140irq/52-eth0-rx-0-21swapper/1119:15:453
3040699144cyclictest0-21swapper/922:40:0211
30406991413cyclictest761ksoftirqd/922:05:1711
30406991413cyclictest14209-21taskset20:13:2411
30406991413cyclictest14209-21taskset20:13:2311
30406991413cyclictest11871-21taskset22:21:3511
30406991413cyclictest0-21swapper/920:40:1411
3040699141cyclictest0-21swapper/920:35:1811
3039699143cyclictest0-21swapper/720:50:219
3039599144cyclictest29847-21munin-run22:05:008
12250140irq/42-ahci0-21swapper/819:15:4610
12250140irq/42-ahci0-21swapper/722:20:019
12250140irq/42-ahci0-21swapper/319:15:515
12250140irq/42-ahci0-21swapper/122:20:001
8099130watchdog/100-21swapper/1023:11:552
8099130watchdog/100-21swapper/1022:37:582
30406991312cyclictest29156-21taskset21:16:4411
30406991312cyclictest15515-21chrt22:26:3911
30406991312cyclictest0-21swapper/923:50:1311
30406991312cyclictest0-21swapper/920:30:1711
30406991312cyclictest0-21swapper/920:30:1611
30406991312cyclictest0-21swapper/920:24:1911
30406991311cyclictest15899-21snmp_rack3slot923:11:0111
3039699134cyclictest0-21swapper/720:15:019
3039699134cyclictest0-21swapper/720:15:009
3039699133cyclictest0-21swapper/700:09:269
3039599134cyclictest0-21swapper/600:30:068
3039599133cyclictest0-21swapper/622:17:538
3039599133cyclictest0-21swapper/621:46:288
3039599133cyclictest0-21swapper/620:56:578
3039299132cyclictest0-21swapper/320:24:205
3038099133cyclictest0-21swapper/122:45:201
3038099133cyclictest0-21swapper/121:20:221
3038099133cyclictest0-21swapper/120:35:181
3038099133cyclictest0-21swapper/119:45:201
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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