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2025-11-23 - 16:10
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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 Sun Nov 23, 2025 12:46:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
122501140irq/42-ahci0-21swapper/107:09:071
24352211095sleep90-21swapper/907:05:1711
22990211096sleep80-21swapper/807:05:0410
25853210895sleep40-21swapper/407:06:366
25892210795sleep70-21swapper/707:07:049
25881210490sleep100-21swapper/1007:06:542
25961210290sleep50-21swapper/507:08:027
3066350960irq/52-eth0-rx-0-21swapper/307:07:495
3066350960irq/52-eth0-rx-0-21swapper/1107:05:133
3066450930irq/53-eth0-tx-0-21swapper/207:05:234
2594926353sleep60-21swapper/607:07:518
2299525955sleep00-21swapper/007:05:080
26264992827cyclictest0-21swapper/007:26:390
26307991917cyclictest0-21swapper/1107:26:533
2630699192cyclictest3066350irq/52-eth0-rx-11:40:302
2626499190cyclictest0-21swapper/010:35:260
26306991817cyclictest0-21swapper/1008:31:362
26306991812cyclictest32524-21processes10:55:262
26306991812cyclictest32524-21processes10:55:262
2630699181cyclictest3066350irq/52-eth0-rx-11:05:212
2630699181cyclictest3066350irq/52-eth0-rx-09:10:312
2630699181cyclictest241722chrt07:48:222
2630699181cyclictest12250irq/42-ahci09:08:552
2630699181cyclictest12250irq/42-ahci09:08:552
2630699180cyclictest155502chrt11:17:212
2630699180cyclictest12250irq/42-ahci07:21:552
2630599181cyclictest761ksoftirqd/909:05:2111
2630599181cyclictest761ksoftirqd/909:05:2111
2630599181cyclictest761ksoftirqd/907:40:0111
2630599181cyclictest0-21swapper/908:55:1311
26304991816cyclictest8672-21perl08:55:1510
26304991816cyclictest736-21snmp_easybox.os12:25:2210
26304991816cyclictest5215-21memory08:05:2110
26304991816cyclictest4304-21snmp_easybox.os12:30:2610
26304991816cyclictest4086-21snmp_easybox.os11:45:2410
26304991816cyclictest3908-21snmp_easybox.os08:50:1110
26304991816cyclictest32613-21snmp_easybox.os08:45:1210
26304991816cyclictest28029-21diskstats11:35:1510
26304991816cyclictest27716-21snmp_rack3slot907:51:5010
26304991816cyclictest27524-21snmp_rack3slot907:10:1410
26304991816cyclictest24315-21perl10:45:1410
26304991816cyclictest24315-21perl10:45:1410
26304991816cyclictest21320-21users09:10:3110
26304991816cyclictest20348-21snmp_easybox.os12:10:1310
26304991816cyclictest18496-21snmp_rack3slot908:25:1310
26304991816cyclictest17879-21perl12:05:1510
26304991816cyclictest17019-21munin-run07:40:0010
26304991816cyclictest1484-21munin-run11:45:0110
26304991816cyclictest14091-21perl12:00:1610
26304991816cyclictest1312-21snmp_easybox.os07:15:2810
26304991816cyclictest10360-21memory10:25:2110
26302991816cyclictest26023-21qemu-kvm07:30:418
26302991816cyclictest17882-21qemu-kvm09:17:108
2626499180cyclictest0-21swapper/012:20:270
2626499180cyclictest0-21swapper/007:15:300
2626499180cyclictest0-21swapper/007:10:260
26306991716cyclictest28488-21python10:05:252
2630699170cyclictest92682sleep1008:10:242
2630699170cyclictest92682sleep1008:10:232
2630699170cyclictest92072sleep1012:39:552
2630699170cyclictest87122chrt11:53:262
2630699170cyclictest72682sleep1009:36:342
2630699170cyclictest68082sleep1008:52:062
2630699170cyclictest63582sleep1008:07:362
2630699170cyclictest52822sleep1012:30:552
2630699170cyclictest49782sleep1011:47:012
2630699170cyclictest47732sleep1011:04:092
2630699170cyclictest47732sleep1011:04:092
2630699170cyclictest41272sleep1010:16:282
2630699170cyclictest319872chrt08:43:412
2630699170cyclictest312492chrt07:55:352
2630699170cyclictest311892sleep1012:25:072
2630699170cyclictest3066450irq/53-eth0-tx-11:20:132
2630699170cyclictest3066450irq/53-eth0-tx-08:25:152
2630699170cyclictest3066350irq/52-eth0-rx-11:10:372
2630699170cyclictest3066350irq/52-eth0-rx-10:30:552
2630699170cyclictest3066350irq/52-eth0-rx-09:25:312
2630699170cyclictest304472chrt12:21:532
2630699170cyclictest299732sleep1010:10:022
2630699170cyclictest298392sleep1007:14:292
2630699170cyclictest296082chrt10:51:192
2630699170cyclictest271712sleep1011:35:132
2630699170cyclictest268432sleep1007:50:222
2630699170cyclictest265052sleep1011:33:002
2630699170cyclictest260862sleep1010:48:062
2630699170cyclictest260862sleep1010:48:062
2630699170cyclictest258242sleep1009:20:092
2630699170cyclictest254742sleep1010:01:132
2630699170cyclictest253102sleep1008:35:032
2630699170cyclictest25252sleep1009:30:222
2630699170cyclictest250902sleep1009:17:082
2630699170cyclictest226912sleep1011:25:482
2630699170cyclictest223262chrt10:41:302
2630699170cyclictest219362sleep1009:58:012
2630699170cyclictest211562sleep1012:10:152
2630699170cyclictest205342sleep1007:43:342
2630699170cyclictest194822sleep1012:06:152
2630699170cyclictest189332sleep1010:39:542
2630699170cyclictest184822sleep1009:55:002
2630699170cyclictest172342sleep1008:21:032
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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