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2026-03-27 - 07:56
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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 Fri Mar 27, 2026 00:46:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9918501090irq/53-eth0-rx-0-21swapper/119:09:271
18362210490sleep50-21swapper/519:07:127
9918501000irq/53-eth0-rx-0-21swapper/219:07:374
991850970irq/53-eth0-rx-0-21swapper/719:09:349
991950930irq/54-eth0-tx-0-21swapper/819:06:1410
991850910irq/53-eth0-rx-0-21swapper/319:05:205
1601728375sleep40-21swapper/419:05:106
1833727870sleep100-21swapper/1019:06:522
1917826967sleep90-21swapper/919:09:5211
1834626656sleep60-21swapper/619:07:008
1894226253sleep110-21swapper/1119:07:423
1826125853sleep00-21swapper/019:05:540
19292995046cyclictest0-21swapper/022:22:030
19334994140cyclictest0-21swapper/1122:10:003
19334994039cyclictest0-21swapper/1122:10:383
19292993410cyclictest0-21swapper/022:10:270
19334993231cyclictest991850irq/53-eth0-rx-22:23:283
1929299300cyclictest0-21swapper/021:18:500
19292992825cyclictest0-21swapper/022:09:530
19334992511cyclictest0-21swapper/1121:20:503
19334992511cyclictest0-21swapper/1121:20:503
1933499200cyclictest0-21swapper/1121:08:413
1933499200cyclictest0-21swapper/1119:18:123
1929299200cyclictest0-21swapper/021:08:420
1933299192cyclictest0-21swapper/922:30:0011
1933299192cyclictest0-21swapper/922:04:0411
19334991817cyclictest0-21swapper/1120:20:253
1933299181cyclictest991950irq/54-eth0-tx-23:23:0811
1933299181cyclictest0-21swapper/923:52:0611
1933299181cyclictest0-21swapper/923:10:4911
1933299181cyclictest0-21swapper/923:00:2011
1933299181cyclictest0-21swapper/922:45:4311
1933299181cyclictest0-21swapper/922:26:1411
1933299181cyclictest0-21swapper/922:10:5211
1933299181cyclictest0-21swapper/920:45:1611
1933299181cyclictest0-21swapper/920:05:3711
1933299181cyclictest0-21swapper/919:55:1111
1933299181cyclictest0-21swapper/900:17:2311
1933299181cyclictest0-21swapper/900:01:4011
19329991816cyclictest8126-21qemu-kvm22:27:198
19329991816cyclictest19051-21qemu-kvm19:29:348
19292991817cyclictest2279-21nscd19:22:260
19292991814cyclictest0-21swapper/021:23:540
19292991814cyclictest0-21swapper/021:23:540
19332991716cyclictest25947-21chrt21:50:3311
19332991716cyclictest0-21swapper/921:25:2211
1933299170cyclictest10611-21ssh23:06:0211
1933299170cyclictest0-21swapper/923:57:3511
1933299170cyclictest0-21swapper/921:12:2711
1933299170cyclictest0-21swapper/900:13:1511
1933299170cyclictest0-21swapper/900:06:2811
1932999179cyclictest31792-21qemu-kvm20:15:018
19326991715cyclictest8381-21ssh22:08:357
1931399170cyclictest0-21swapper/322:22:435
19308991715cyclictest2308-21snmpd19:39:554
991850160irq/53-eth0-rx-0-21swapper/021:58:330
19334991615cyclictest991850irq/53-eth0-rx-21:29:323
19334991615cyclictest144272sleep1122:17:143
1933299165cyclictest0-21swapper/919:52:5511
19332991615cyclictest991850irq/53-eth0-rx-23:36:1911
19332991615cyclictest11905-1kworker/9:2H20:41:2511
19332991615cyclictest0-21swapper/923:19:3311
19332991615cyclictest0-21swapper/922:42:0811
19332991615cyclictest0-21swapper/922:23:3411
19332991615cyclictest0-21swapper/921:58:3311
19332991615cyclictest0-21swapper/921:30:4511
19332991615cyclictest0-21swapper/920:29:4211
19332991615cyclictest0-21swapper/900:32:4411
1933099164cyclictest0-21swapper/700:30:019
19330991614cyclictest8318-21smbd22:08:399
19329991615cyclictest8126-21qemu-kvm22:21:428
19329991614cyclictest19051-21qemu-kvm19:11:018
1932999160cyclictest0-21swapper/623:35:008
19326991615cyclictest0-21swapper/522:21:577
19308991614cyclictest2308-21snmpd23:53:584
19308991614cyclictest2308-21snmpd20:33:404
5299150watchdog/60-21swapper/623:01:308
19332991514cyclictest991850irq/53-eth0-rx-21:23:4711
19332991514cyclictest991850irq/53-eth0-rx-21:23:4611
19332991514cyclictest27967-21chrt20:01:0811
19332991514cyclictest15770-21latency_hist21:40:0111
19332991514cyclictest0-21swapper/922:57:1011
19332991514cyclictest0-21swapper/922:36:0011
19332991514cyclictest0-21swapper/900:28:0111
1932999150cyclictest0-21swapper/620:00:148
19326991513cyclictest5597-21ssh22:04:457
1932099151cyclictest0-21swapper/400:30:296
19313991513cyclictest2308-21snmpd00:22:125
5999140watchdog/70-21swapper/720:10:149
31140ksoftirqd/00-21swapper/023:10:210
19334991413cyclictest991850irq/53-eth0-rx-22:30:133
19334991413cyclictest991850irq/53-eth0-rx-22:28:053
19334991413cyclictest991850irq/53-eth0-rx-19:12:033
19333991412cyclictest811rcuc/1019:21:402
19333991412cyclictest14108-21kworker/10:023:14:372
19333991412cyclictest14108-21kworker/10:022:08:492
19333991412cyclictest14108-21kworker/10:021:50:362
19333991412cyclictest14108-21kworker/10:000:17:132
19333991412cyclictest0-21swapper/1021:41:492
19333991412cyclictest0-21swapper/1020:45:552
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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