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2025-11-21 - 00:37
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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 Nov 20, 2025 12:46:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27746210590sleep110-21swapper/1107:06:513
27658210493sleep20-21swapper/207:05:434
12250980irq/42-ahci0-21swapper/107:09:091
3066350960irq/52-eth0-rx-0-21swapper/807:09:3610
2792629382sleep40-21swapper/407:08:336
2795729079sleep70-21swapper/707:09:019
12250800irq/42-ahci0-21swapper/307:05:195
2769426454sleep90-21swapper/907:06:1311
2765326454sleep100-21swapper/1007:05:382
2769026253sleep60-21swapper/607:06:108
2769825955sleep00-21swapper/007:06:170
2764725753sleep50-21swapper/507:05:337
28155994021cyclictest0-21swapper/009:15:150
28155993217cyclictest20415-21munin-node09:10:290
2815599310cyclictest0-21swapper/007:17:120
2818399290cyclictest0-21swapper/1110:24:413
12250280irq/42-ahci0-21swapper/1007:17:232
2818399191cyclictest0-21swapper/1109:08:153
2818299192cyclictest12250irq/42-ahci11:40:182
2818199192cyclictest0-21swapper/909:50:1611
2818199192cyclictest0-21swapper/909:50:1511
2815599190cyclictest0-21swapper/008:20:070
2815599190cyclictest0-21swapper/008:19:550
2818299181cyclictest3066450irq/53-eth0-tx-09:55:242
2818299181cyclictest3066350irq/52-eth0-rx-08:14:542
2818299181cyclictest12250irq/42-ahci09:00:182
2818299181cyclictest12250irq/42-ahci08:08:542
2818199181cyclictest761ksoftirqd/911:44:4411
2818199181cyclictest4412-1kworker/9:2H11:24:1811
2818199181cyclictest0-21swapper/910:10:1411
2818199181cyclictest0-21swapper/908:15:3211
28180991816cyclictest9456-21snmp_rack3slot908:10:1210
28180991816cyclictest8303-21ntp_states09:35:2010
28180991816cyclictest8303-21ntp_states09:35:1910
28180991816cyclictest8197-21snmp_rack3slot912:35:1310
28180991816cyclictest8161-21snmp_rack3slot908:06:3610
28180991816cyclictest7113-21hddtemp_smartct08:50:1710
28180991816cyclictest5625-21snmp_rack3slot907:20:1110
28180991816cyclictest5505-21perl12:30:1510
28180991816cyclictest30617-21iostat_ios11:35:1710
28180991816cyclictest29372-21snmp_rack3slot907:10:1410
28180991816cyclictest28291-21iostat_ios07:50:1710
28180991816cyclictest2762-21snmp_rack3slot910:56:3610
28180991816cyclictest27574-21snmp_rack3slot912:15:2510
28180991816cyclictest26562-21iostat_ios10:45:1710
28180991816cyclictest23615-21snmp_rack3slot907:45:1410
28180991816cyclictest22053-21snmp_easybox.os08:25:2010
28180991816cyclictest20837-21snmp_easybox.os09:55:1110
28180991816cyclictest20760-21snmp_rack3slot907:40:1710
28180991816cyclictest20645-21snmp_easybox.os12:05:2310
28180991816cyclictest16152-21snmp_easybox.os10:30:2310
28180991816cyclictest12698-21snmp_easybox.os08:15:1410
28180991816cyclictest1173-21snmp_easybox.os07:15:1610
28180991816cyclictest11535-21irqstats09:40:2210
28180991816cyclictest10451-21snmp_rack3slot911:51:3710
28171991816cyclictest8323-21qemu-kvm08:30:448
28167991816cyclictest2406-21snmpd09:07:114
28155991816cyclictest29322-21chrt09:20:200
28155991816cyclictest25032chrt10:14:020
2818399170cyclictest23213-21chrt09:10:423
2818399170cyclictest0-21swapper/1109:15:113
2818299170cyclictest97092sleep1010:22:232
2818299170cyclictest75832sleep1011:50:092
2818299170cyclictest7062sleep1007:56:072
2818299170cyclictest69562sleep1011:48:342
2818299170cyclictest65972sleep1011:03:282
2818299170cyclictest59542sleep1010:15:482
2818299170cyclictest35862sleep1012:26:512
2818299170cyclictest318582sleep1011:36:082
2818299170cyclictest314542sleep1007:10:512
2818299170cyclictest308402sleep1010:50:262
2818299170cyclictest3066450irq/53-eth0-tx-12:30:112
2818299170cyclictest3066450irq/53-eth0-tx-09:15:122
2818299170cyclictest3066350irq/52-eth0-rx-12:35:222
2818299170cyclictest3066350irq/52-eth0-rx-12:10:182
2818299170cyclictest3066350irq/52-eth0-rx-11:05:192
2818299170cyclictest3066350irq/52-eth0-rx-10:10:322
2818299170cyclictest3066350irq/52-eth0-rx-09:35:112
2818299170cyclictest3066350irq/52-eth0-rx-09:35:102
2818299170cyclictest3066350irq/52-eth0-rx-09:30:412
2818299170cyclictest3066350irq/52-eth0-rx-09:10:182
2818299170cyclictest3066350irq/52-eth0-rx-09:05:272
2818299170cyclictest3066350irq/52-eth0-rx-08:50:382
2818299170cyclictest3066350irq/52-eth0-rx-08:40:172
2818299170cyclictest3066350irq/52-eth0-rx-08:25:302
2818299170cyclictest305562sleep1009:21:172
2818299170cyclictest303392chrt12:20:142
2818299170cyclictest300392sleep1008:36:122
2818299170cyclictest295622sleep1007:51:312
2818299170cyclictest287382sleep1012:17:492
2818299170cyclictest282072sleep1011:30:572
2818299170cyclictest275432sleep1010:03:582
2818299170cyclictest275432sleep1010:03:572
2818299170cyclictest264182sleep1008:31:362
2818299170cyclictest258402sleep1007:45:422
2818299170cyclictest249552sleep1010:45:022
2818299170cyclictest244252sleep1010:44:522
2818299170cyclictest213822sleep1012:06:482
2818299170cyclictest210342sleep1011:22:182
2818299170cyclictest208732sleep1007:40:172
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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