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2026-05-20 - 20:49
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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 Wed May 20, 2026 12:46:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9919501150irq/54-eth0-tx-0-21swapper/107:07:121
22782210491sleep50-21swapper/507:06:527
991850980irq/53-eth0-rx-0-21swapper/307:06:015
991850980irq/53-eth0-rx-0-21swapper/207:07:454
2296829787sleep90-21swapper/907:08:3211
991850960irq/53-eth0-rx-0-21swapper/1107:06:463
991850940irq/53-eth0-rx-0-21swapper/407:05:066
991850920irq/53-eth0-rx-0-21swapper/1007:07:452
991950830irq/54-eth0-tx-0-21swapper/707:06:379
12850800irq/42-ahci0-21swapper/807:09:2310
2282525955sleep00-21swapper/007:07:240
2279725955sleep60-21swapper/607:07:068
991850300irq/53-eth0-rx-0-21swapper/110:27:401
23219993029cyclictest991950irq/54-eth0-tx-10:27:233
23195993029cyclictest991950irq/54-eth0-tx-10:27:326
23194993029cyclictest12850irq/42-ahci10:27:365
23218992928cyclictest991950irq/54-eth0-tx-10:27:382
23216992928cyclictest991850irq/53-eth0-rx-10:27:2610
23215992928cyclictest991950irq/54-eth0-tx-10:27:389
23217992625cyclictest15192-21ssh10:27:3011
2321999249cyclictest68692sleep1108:10:283
23175992421cyclictest0-21swapper/010:27:230
2317599220cyclictest0-21swapper/009:27:240
2317599200cyclictest0-21swapper/009:16:300
2321799192cyclictest0-21swapper/912:31:2811
2321799192cyclictest0-21swapper/912:04:4311
2321799192cyclictest0-21swapper/911:54:0511
2321799192cyclictest0-21swapper/911:34:4711
2321799192cyclictest0-21swapper/910:19:1811
23219991817cyclictest28992sleep1107:23:233
2321999180cyclictest0-21swapper/1110:08:163
2321999180cyclictest0-21swapper/1110:08:153
2321799181cyclictest23179-1kworker/9:2H07:15:2011
2321799181cyclictest0-21swapper/912:17:2811
2321799181cyclictest0-21swapper/911:36:5711
2321799181cyclictest0-21swapper/910:46:0711
2321799181cyclictest0-21swapper/909:45:2311
2321799181cyclictest0-21swapper/908:40:1411
2321799181cyclictest0-21swapper/908:15:2011
23208991816cyclictest22934-21qemu-kvm07:24:478
23208991816cyclictest22933-21qemu-kvm07:10:148
23208991815cyclictest22934-21qemu-kvm07:30:138
23203991816cyclictest22934-21qemu-kvm07:19:467
2319499182cyclictest15107-21diskmemload10:36:125
23219991716cyclictest314902sleep1107:16:473
23217991716cyclictest0-21swapper/911:20:4411
23217991716cyclictest0-21swapper/911:20:4411
23217991716cyclictest0-21swapper/910:07:4311
23217991716cyclictest0-21swapper/910:07:4211
23217991716cyclictest0-21swapper/909:32:2311
2321799170cyclictest0-21swapper/912:26:2311
2321799170cyclictest0-21swapper/911:26:0311
2321799170cyclictest0-21swapper/911:00:0311
2321799170cyclictest0-21swapper/908:50:2211
23208991716cyclictest22934-21qemu-kvm07:44:548
23208991716cyclictest22934-21qemu-kvm07:25:138
23208991715cyclictest22934-21qemu-kvm07:45:338
23208991715cyclictest14953-21qemu-kvm09:47:198
23203991716cyclictest22933-21qemu-kvm07:44:557
23203991716cyclictest22933-21qemu-kvm07:35:137
23203991715cyclictest22934-21qemu-kvm07:29:487
23203991715cyclictest22277-21ssh10:34:117
2320399171cyclictest0-21swapper/511:36:507
2320399170cyclictest0-21swapper/508:50:027
2319499172cyclictest15107-21diskmemload10:30:425
2319499172cyclictest15107-21diskmemload10:10:415
2319499172cyclictest15107-21diskmemload09:20:525
2319499172cyclictest12386-21ssh11:45:095
2319499171cyclictest0-21swapper/312:10:575
2319499171cyclictest0-21swapper/311:14:205
2319499171cyclictest0-21swapper/311:14:195
23188991715cyclictest2308-21snmpd12:35:534
23188991715cyclictest2308-21snmpd08:00:054
23188991715cyclictest2308-21snmpd07:38:504
2318899171cyclictest0-21swapper/210:47:504
2317599172cyclictest2519-21nmbd08:10:350
23219991615cyclictest303542sleep1110:14:443
23217991615cyclictest741rcuc/908:23:1711
23217991615cyclictest741rcuc/908:23:1611
23217991615cyclictest6014-21ssh09:27:3911
23217991615cyclictest3789-21rm09:51:3211
23217991615cyclictest0-21swapper/910:44:1911
23217991615cyclictest0-21swapper/910:33:5011
23217991615cyclictest0-21swapper/909:55:2811
23217991615cyclictest0-21swapper/909:24:0911
23217991615cyclictest0-21swapper/909:00:1311
23217991615cyclictest0-21swapper/908:00:1911
2321699165cyclictest0-21swapper/809:35:0010
2321699164cyclictest0-21swapper/807:50:0210
23208991615cyclictest22934-21qemu-kvm07:39:208
23208991615cyclictest22934-21qemu-kvm07:16:408
23203991615cyclictest30146-21ssh10:14:227
23203991614cyclictest22934-21qemu-kvm07:14:447
2320399160cyclictest0-21swapper/512:13:217
2320399160cyclictest0-21swapper/512:01:567
2320399160cyclictest0-21swapper/511:55:097
2320399160cyclictest0-21swapper/511:45:497
2320399160cyclictest0-21swapper/511:26:067
2320399160cyclictest0-21swapper/509:20:097
2320399160cyclictest0-21swapper/509:11:387
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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