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2026-05-28 - 23:02
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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 12:46:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
122501130irq/42-ahci0-21swapper/107:09:031
122501130irq/42-ahci0-21swapper/107:09:021
7855210895sleep40-21swapper/407:07:596
7855210895sleep40-21swapper/407:07:586
7754210693sleep80-21swapper/807:06:3910
7754210693sleep80-21swapper/807:06:3810
30549501020irq/53-eth0-rx-0-21swapper/207:09:394
30549501020irq/53-eth0-rx-0-21swapper/207:09:394
30549501010irq/53-eth0-rx-0-21swapper/307:05:155
30549501010irq/53-eth0-rx-0-21swapper/307:05:145
3054950990irq/53-eth0-rx-0-21swapper/707:09:089
3054950990irq/53-eth0-rx-0-21swapper/707:09:079
3054950920irq/53-eth0-rx-0-21swapper/1007:07:352
3054950920irq/53-eth0-rx-0-21swapper/1007:07:352
3054950850irq/53-eth0-rx-0-21swapper/1107:07:293
3054950850irq/53-eth0-rx-0-21swapper/1107:07:283
12250820irq/42-ahci0-21swapper/907:07:0011
12250820irq/42-ahci0-21swapper/907:07:0011
783826856sleep00-21swapper/007:07:430
783826856sleep00-21swapper/007:07:420
3054950650irq/53-eth0-rx-0-21swapper/507:05:567
3054950650irq/53-eth0-rx-0-21swapper/507:05:557
780125955sleep60-21swapper/607:07:138
780125955sleep60-21swapper/607:07:128
8171994327cyclictest0-21swapper/010:10:320
8182993517cyclictest0-21swapper/1107:18:393
817199330cyclictest0-21swapper/008:10:280
817199330cyclictest0-21swapper/008:10:270
818299310cyclictest0-21swapper/1107:30:103
8182992928cyclictest12250irq/42-ahci09:28:153
818299290cyclictest0-21swapper/1108:10:343
818299290cyclictest0-21swapper/1108:10:333
818299290cyclictest0-21swapper/1107:30:003
8175992928cyclictest3480-21md0_resync09:28:146
8174992928cyclictest3480-21md0_resync09:28:025
3054950280irq/53-eth0-rx-0-21swapper/808:10:2710
3054950280irq/53-eth0-rx-0-21swapper/808:10:2610
12250280irq/42-ahci0-21swapper/108:10:271
12250280irq/42-ahci0-21swapper/108:10:261
8182992712cyclictest10250-1kworker/11:2H10:10:343
8175992625cyclictest530-21md0_raid110:13:106
8172992524cyclictest3480-21md0_resync09:28:141
8171992524cyclictest3480-21md0_resync09:28:150
8173992322cyclictest3480-21md0_resync10:13:184
817199220cyclictest0-21swapper/009:14:360
8173992120cyclictest530-21md0_raid109:28:164
8171992019cyclictest0-21swapper/008:21:200
818099192cyclictest0-21swapper/910:09:3211
818099192cyclictest0-21swapper/910:02:4811
818099192cyclictest0-21swapper/910:02:4711
8171991917cyclictest12250irq/42-ahci08:26:410
8180991816cyclictest1921-21load11:45:1611
818099181cyclictest0-21swapper/909:16:2211
818099181cyclictest0-21swapper/909:07:4011
8177991816cyclictest20983-21qemu-kvm08:37:438
8177991816cyclictest20983-21qemu-kvm08:32:428
8177991816cyclictest0-21swapper/609:25:008
8173991816cyclictest2305-21snmpd10:44:114
8171991817cyclictest0-21swapper/007:28:140
818099175cyclictest0-21swapper/912:30:0111
818099175cyclictest0-21swapper/912:30:0011
8180991716cyclictest6914-1kworker/9:2H11:42:0211
8180991715cyclictest28570-21ssh12:33:3911
8180991715cyclictest28570-21ssh12:33:3811
818099170cyclictest3480-21md0_resync11:39:1411
818099170cyclictest3480-21md0_resync11:30:1911
818099170cyclictest3480-21md0_resync09:21:3711
818099170cyclictest0-21swapper/909:42:1811
817999175cyclictest0-21swapper/810:20:0010
8177991716cyclictest32689-21qemu-kvm09:13:398
8177991715cyclictest32689-21qemu-kvm09:08:378
8176991716cyclictest9599-21qemu-kvm10:08:427
817499171cyclictest0-21swapper/310:53:185
817499171cyclictest0-21swapper/310:53:175
8173991715cyclictest2305-21snmpd10:59:124
8173991715cyclictest2305-21snmpd09:18:114
8173991715cyclictest13591-21munin-node09:20:174
8171991716cyclictest3054950irq/53-eth0-rx-09:22:140
8171991715cyclictest0-21swapper/007:22:390
8171991713cyclictest3054950irq/53-eth0-rx-09:18:090
817199170cyclictest0-21swapper/010:25:110
817199170cyclictest0-21swapper/007:35:180
14750170irq/18-uhci_hcd0-21swapper/207:22:364
818299165cyclictest0-21swapper/1109:50:013
8180991615cyclictest6914-1kworker/9:2H11:16:0311
8180991615cyclictest4872-21kworker/9:012:36:0711
8180991615cyclictest3480-21md0_resync09:45:3111
8180991615cyclictest12250irq/42-ahci10:35:2411
8180991615cyclictest0-21swapper/911:54:0011
8180991615cyclictest0-21swapper/909:33:5611
8180991614cyclictest6114-21chrt07:46:3111
8180991614cyclictest20177-21taskset07:21:4911
818099160cyclictest0-21swapper/908:00:0011
8179991615cyclictest16171-21smartctl11:30:2210
8179991615cyclictest11498-21smartctl10:35:1310
817899165cyclictest0-21swapper/711:25:019
817799165cyclictest0-21swapper/609:00:008
8177991614cyclictest20982-21qemu-kvm08:45:168
8177991614cyclictest20982-21qemu-kvm08:42:458
817699160cyclictest0-21swapper/511:38:557
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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