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2026-04-09 - 13:46
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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 Apr 09, 2026 12:46:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9918501140irq/53-eth0-rx-0-21swapper/307:07:075
128501000irq/42-ahci0-21swapper/1007:05:282
991850980irq/53-eth0-rx-0-21swapper/507:05:567
12850980irq/42-ahci0-21swapper/207:05:164
991850930irq/53-eth0-rx-0-21swapper/107:08:171
991850900irq/53-eth0-rx-0-21swapper/407:07:406
991850890irq/53-eth0-rx-0-21swapper/707:06:569
991850890irq/53-eth0-rx-0-21swapper/1107:06:533
889128776sleep90-21swapper/907:08:4511
991850740irq/53-eth0-rx-0-21swapper/807:08:0010
868826858sleep60-21swapper/607:06:538
875926553sleep00-21swapper/007:07:490
9089994615cyclictest0-21swapper/009:24:170
9089993818cyclictest0-21swapper/009:13:100
913199310cyclictest0-21swapper/1107:21:173
9131992928cyclictest12850irq/42-ahci08:18:353
9131992928cyclictest12850irq/42-ahci08:18:343
991950280irq/54-eth0-tx-762-21diskmemload09:24:094
991850280irq/53-eth0-rx-0-21swapper/409:24:076
991850280irq/53-eth0-rx-0-21swapper/1109:24:023
9118992827cyclictest10826-21md0_resync08:18:356
9118992827cyclictest10826-21md0_resync08:18:346
12850280irq/42-ahci0-21swapper/909:24:1311
12850280irq/42-ahci0-21swapper/709:24:079
12850280irq/42-ahci0-21swapper/509:24:077
12850280irq/42-ahci0-21swapper/1009:24:112
12850280irq/42-ahci0-21swapper/109:23:581
9112992625cyclictest10826-21md0_resync08:18:395
9112992625cyclictest10826-21md0_resync08:18:395
9131992120cyclictest12850irq/42-ahci07:17:583
9097992019cyclictest10826-21md0_resync08:18:351
9097992019cyclictest10826-21md0_resync08:18:351
911299199cyclictest0-21swapper/307:54:135
9089991918cyclictest629-21smbd09:30:440
9089991918cyclictest629-21smbd09:30:430
9089991917cyclictest0-21swapper/008:23:590
991850180irq/53-eth0-rx-600-21qemu-kvm09:24:148
9131991817cyclictest0-21swapper/1108:23:593
912999189cyclictest991850irq/53-eth0-rx-12:16:2111
912999189cyclictest6046-21ssh09:13:1811
912999189cyclictest12850irq/42-ahci11:27:1711
912999189cyclictest10826-21md0_resync08:43:0811
912999189cyclictest0-21swapper/912:08:4511
912999189cyclictest0-21swapper/910:39:5311
912999189cyclictest0-21swapper/910:21:5911
912999189cyclictest0-21swapper/907:55:2711
912999189cyclictest0-21swapper/907:55:2611
911299180cyclictest0-21swapper/309:47:405
9131991716cyclictest991850irq/53-eth0-rx-09:27:243
9131991716cyclictest991850irq/53-eth0-rx-09:27:233
9131991716cyclictest991850irq/53-eth0-rx-09:18:093
9131991716cyclictest12850irq/42-ahci09:12:373
912999179cyclictest8534-1kworker/9:0H12:23:5211
912999179cyclictest8534-1kworker/9:0H12:23:5111
912999179cyclictest26074-1kworker/9:0H09:09:4211
912999179cyclictest12850irq/42-ahci10:19:0911
912999179cyclictest12850irq/42-ahci09:46:5411
912999179cyclictest10826-21md0_resync08:25:3611
912999179cyclictest10826-21md0_resync08:00:4011
912999179cyclictest0-21swapper/912:28:0111
912999179cyclictest0-21swapper/912:13:3011
912999179cyclictest0-21swapper/912:13:2911
912999179cyclictest0-21swapper/911:38:5711
912999179cyclictest0-21swapper/911:34:1211
912999179cyclictest0-21swapper/911:22:3711
912999179cyclictest0-21swapper/911:02:1911
912999179cyclictest0-21swapper/910:50:3111
912999179cyclictest0-21swapper/910:50:3011
912999179cyclictest0-21swapper/910:31:0511
912999179cyclictest0-21swapper/910:27:2411
912999179cyclictest0-21swapper/909:41:5211
912999179cyclictest0-21swapper/909:00:1611
912999179cyclictest0-21swapper/907:40:4811
912999179cyclictest0-21swapper/907:20:5911
912999179cyclictest0-21swapper/907:17:0911
912999178cyclictest0-21swapper/909:35:0911
912999170cyclictest0-21swapper/911:15:1011
9126991716cyclictest599-21qemu-kvm09:29:038
9126991716cyclictest599-21qemu-kvm09:29:028
9126991715cyclictest7147-21python10:05:258
9089991715cyclictest991850irq/53-eth0-rx-09:25:370
9089991715cyclictest991850irq/53-eth0-rx-09:25:360
908999170cyclictest2519-21nmbd07:10:010
912999169cyclictest28259-1kworker/9:1H09:59:5911
912999169cyclictest18326-1kworker/9:2H09:31:5411
912999169cyclictest18326-1kworker/9:2H09:31:5311
912999169cyclictest15101-1kworker/9:1H07:33:4611
912999169cyclictest12850irq/42-ahci08:16:5611
912999169cyclictest12850irq/42-ahci08:16:5511
912999169cyclictest0-21swapper/912:02:0211
912999169cyclictest0-21swapper/910:14:5811
912999169cyclictest0-21swapper/909:52:5211
912999169cyclictest0-21swapper/909:16:2411
912999169cyclictest0-21swapper/908:38:3511
912999168cyclictest10826-21md0_resync08:33:5511
912999168cyclictest0-21swapper/910:45:3611
912999162cyclictest1503-21ssh10:00:3211
912999162cyclictest0-21swapper/909:25:3711
912999162cyclictest0-21swapper/909:25:3611
9126991615cyclictest21944-21qemu-kvm08:09:328
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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