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2026-05-28 - 10:27
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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 Thu May 28, 2026 00:46:28)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
122501070irq/42-ahci0-21swapper/119:09:421
5748210392sleep50-21swapper/519:05:087
887929993sleep90-21swapper/919:09:2511
3054950980irq/53-eth0-rx-0-21swapper/219:05:264
3054950960irq/53-eth0-rx-0-21swapper/719:09:109
3054950940irq/53-eth0-rx-0-21swapper/319:05:585
865729179sleep80-21swapper/819:07:1210
3054950870irq/53-eth0-rx-0-21swapper/1119:07:533
880527974sleep100-21swapper/1019:08:262
13450730irq/18-ehci_hcd0-21swapper/419:09:526
853826658sleep00-21swapper/019:05:400
858925955sleep60-21swapper/619:06:228
9075993323cyclictest0-21swapper/1120:30:073
9075993014cyclictest0-21swapper/1122:14:333
9075993014cyclictest0-21swapper/1122:14:333
907599300cyclictest0-21swapper/1121:09:063
9075992921cyclictest109892chrt22:09:483
9075992921cyclictest109892chrt22:09:473
907599290cyclictest22448-21ssh22:18:073
907599290cyclictest22448-21ssh22:18:063
9057992914cyclictest0-21swapper/021:11:050
905799290cyclictest838-21diskmemload22:17:120
905799290cyclictest838-21diskmemload22:17:110
905799290cyclictest4363-21nscd22:10:320
905799290cyclictest4363-21nscd22:10:310
907599220cyclictest0-21swapper/1121:25:213
907399192cyclictest0-21swapper/922:35:1811
907399184cyclictest0-21swapper/919:22:3211
907399181cyclictest761ksoftirqd/900:30:2211
907399181cyclictest5506-21rm23:21:4411
907399181cyclictest0-21swapper/923:56:3811
907399181cyclictest0-21swapper/923:53:3211
907399181cyclictest0-21swapper/922:58:2811
907399181cyclictest0-21swapper/922:25:2411
907399181cyclictest0-21swapper/922:20:1611
907399181cyclictest0-21swapper/922:20:1511
907399181cyclictest0-21swapper/920:19:2211
907399181cyclictest0-21swapper/900:12:2111
907399181cyclictest0-21swapper/900:05:2511
907299184cyclictest0-21swapper/800:07:0110
9066991816cyclictest5913-21snmp_rack3slot920:30:154
9066991816cyclictest22497-21snmp_rack3slot900:01:004
907399175cyclictest0-21swapper/921:08:3111
9073991716cyclictest21718-21ssh00:26:4711
9073991716cyclictest0-21swapper/923:05:2811
9073991716cyclictest0-21swapper/920:20:1011
9073991715cyclictest5934-21ssh21:12:5611
907399170cyclictest761ksoftirqd/919:30:2311
907399170cyclictest0-21swapper/923:41:0511
907399170cyclictest0-21swapper/923:32:3511
907399170cyclictest0-21swapper/900:39:0611
9072991715cyclictest21310-21find20:50:2210
9066991715cyclictest2305-21snmpd19:11:474
9066991715cyclictest2305-21snmpd00:06:514
907599160cyclictest0-21swapper/1119:12:253
9073991615cyclictest14727-21ssh22:10:3511
9073991615cyclictest14727-21ssh22:10:3411
9073991615cyclictest0-21swapper/922:44:5011
9073991615cyclictest0-21swapper/922:33:4311
9073991615cyclictest0-21swapper/922:17:4011
9073991615cyclictest0-21swapper/922:17:4011
9073991615cyclictest0-21swapper/921:45:3411
9073991615cyclictest0-21swapper/921:45:0011
9073991615cyclictest0-21swapper/921:39:3111
9073991615cyclictest0-21swapper/921:29:3711
9073991615cyclictest0-21swapper/920:05:2211
9073991615cyclictest0-21swapper/919:40:1711
9073991615cyclictest0-21swapper/900:18:3511
9073991615cyclictest0-21swapper/900:04:1711
907299164cyclictest0-21swapper/823:05:0210
9070991614cyclictest10030-21qemu-kvm22:09:288
9070991614cyclictest10030-21qemu-kvm22:09:278
9069991615cyclictest1711-21munin-node23:20:177
9066991615cyclictest29588-21ssh21:57:474
9066991615cyclictest17093-21iostat_ios20:45:174
9066991614cyclictest23964-21snmp_easybox.os19:25:244
9066991614cyclictest2305-21snmpd22:16:354
9066991614cyclictest2305-21snmpd22:16:354
9058991615cyclictest838-21diskmemload21:20:101
9058991615cyclictest23460-21kworker/1:122:59:001
907399155cyclictest0-21swapper/920:30:0111
9073991514cyclictest761ksoftirqd/921:55:1911
9073991514cyclictest6438-21timerandwakeup19:45:2611
9073991514cyclictest0-21swapper/923:12:0211
9073991514cyclictest0-21swapper/922:02:3911
907399151cyclictest0-21swapper/921:24:2211
907299154cyclictest0-21swapper/823:10:0110
907299154cyclictest0-21swapper/822:15:0110
907299154cyclictest0-21swapper/822:15:0010
907299154cyclictest0-21swapper/819:30:0110
907299153cyclictest0-21swapper/821:15:0010
9070991513cyclictest25401-21qemu-kvm20:15:108
9069991514cyclictest687-21qemu-kvm21:29:237
9069991513cyclictest6762-21snmp_rack3slot922:56:487
906999150cyclictest0-21swapper/522:45:047
906999150cyclictest0-21swapper/521:50:137
906899150cyclictest0-21swapper/423:43:176
906899150cyclictest0-21swapper/423:09:336
906899150cyclictest0-21swapper/422:13:316
906899150cyclictest0-21swapper/422:13:306
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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