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2026-03-17 - 21:23
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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 Tue Mar 17, 2026 12:46:28)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29188210490sleep110-21swapper/1107:07:293
9918501010irq/53-eth0-rx-0-21swapper/107:08:331
9918501000irq/53-eth0-rx-0-21swapper/707:09:199
128501000irq/42-ahci0-21swapper/207:09:014
991850930irq/53-eth0-rx-0-21swapper/307:07:255
991850920irq/53-eth0-rx-0-21swapper/807:06:4310
991850910irq/53-eth0-rx-0-21swapper/407:05:366
991850900irq/53-eth0-rx-0-21swapper/507:07:397
2942527977sleep90-21swapper/907:09:5111
2913026653sleep100-21swapper/1007:06:402
2917726554sleep00-21swapper/007:07:180
2908726454sleep60-21swapper/607:06:128
2954899621cyclictest0-21swapper/009:11:120
29548996117cyclictest0-21swapper/009:16:040
29581993837cyclictest0-21swapper/1109:14:073
2954899340cyclictest0-21swapper/009:09:480
2954899340cyclictest0-21swapper/009:09:470
29581992827cyclictest991950irq/54-eth0-tx-09:15:233
2954899280cyclictest0-21swapper/012:05:320
29561992322cyclictest2367-21lldpd09:11:171
2958099192cyclictest991950irq/54-eth0-tx-09:21:172
2958099192cyclictest991850irq/53-eth0-rx-12:17:422
2958099192cyclictest991850irq/53-eth0-rx-12:17:422
2958099192cyclictest991850irq/53-eth0-rx-11:29:422
2958099192cyclictest991850irq/53-eth0-rx-10:47:022
2958099192cyclictest991850irq/53-eth0-rx-10:31:082
2958099192cyclictest991850irq/53-eth0-rx-10:26:262
2958099192cyclictest991850irq/53-eth0-rx-10:10:382
2958099192cyclictest991850irq/53-eth0-rx-09:49:342
2958099192cyclictest991850irq/53-eth0-rx-09:32:092
2958099192cyclictest991850irq/53-eth0-rx-09:32:092
2957999192cyclictest0-21swapper/912:01:3211
29548991917cyclictest991850irq/53-eth0-rx-08:13:050
29548991917cyclictest17159-21taskset08:19:130
29580991817cyclictest0-21swapper/1012:22:302
29580991817cyclictest0-21swapper/1012:06:112
29580991817cyclictest0-21swapper/1011:47:312
29580991817cyclictest0-21swapper/1009:51:542
29580991817cyclictest0-21swapper/1007:16:312
2958099181cyclictest991950irq/54-eth0-tx-12:25:062
2958099181cyclictest991850irq/53-eth0-rx-12:36:012
2958099181cyclictest991850irq/53-eth0-rx-12:30:482
2958099181cyclictest991850irq/53-eth0-rx-12:14:442
2958099181cyclictest991850irq/53-eth0-rx-12:01:312
2958099181cyclictest991850irq/53-eth0-rx-11:58:192
2958099181cyclictest991850irq/53-eth0-rx-11:44:492
2958099181cyclictest991850irq/53-eth0-rx-11:21:152
2958099181cyclictest991850irq/53-eth0-rx-11:16:052
2958099181cyclictest991850irq/53-eth0-rx-11:05:032
2958099181cyclictest991850irq/53-eth0-rx-11:01:552
2958099181cyclictest991850irq/53-eth0-rx-10:53:112
2958099181cyclictest991850irq/53-eth0-rx-10:41:062
2958099181cyclictest991850irq/53-eth0-rx-10:35:282
2958099181cyclictest991850irq/53-eth0-rx-10:22:212
2958099181cyclictest991850irq/53-eth0-rx-10:15:172
2958099181cyclictest991850irq/53-eth0-rx-10:06:442
2958099181cyclictest991850irq/53-eth0-rx-10:01:072
2958099181cyclictest991850irq/53-eth0-rx-09:39:482
2958099181cyclictest991850irq/53-eth0-rx-09:19:032
2958099181cyclictest991850irq/53-eth0-rx-09:10:292
2958099181cyclictest991850irq/53-eth0-rx-08:05:132
2958099181cyclictest12850irq/42-ahci09:40:542
2958099181cyclictest12850irq/42-ahci09:40:542
2958099181cyclictest12850irq/42-ahci09:09:102
2958099181cyclictest12850irq/42-ahci09:09:102
2958099181cyclictest12850irq/42-ahci08:46:262
2958099180cyclictest991850irq/53-eth0-rx-09:55:142
2957999181cyclictest16114-21ssh12:09:0011
2957999181cyclictest0-21swapper/912:38:2111
2957999181cyclictest0-21swapper/912:30:4511
2957999181cyclictest0-21swapper/912:23:5211
2957999181cyclictest0-21swapper/911:46:4111
2957999181cyclictest0-21swapper/911:38:0811
2957999181cyclictest0-21swapper/911:20:4511
2957999181cyclictest0-21swapper/911:19:5311
2957999181cyclictest0-21swapper/911:08:4211
2957999181cyclictest0-21swapper/910:51:2811
2957999181cyclictest0-21swapper/910:33:2611
2957999181cyclictest0-21swapper/910:25:1511
2957999181cyclictest0-21swapper/910:21:5111
2957999181cyclictest0-21swapper/910:19:1311
2957999181cyclictest0-21swapper/910:02:3611
2957999181cyclictest0-21swapper/909:51:0211
2957999181cyclictest0-21swapper/909:29:5511
2957999181cyclictest0-21swapper/909:13:2811
2957999181cyclictest0-21swapper/908:45:2011
2957999181cyclictest0-21swapper/908:06:5911
29575991817cyclictest0-21swapper/509:15:527
29575991816cyclictest21268-21qemu-kvm09:30:127
29575991816cyclictest21268-21qemu-kvm09:30:127
29575991816cyclictest21268-21qemu-kvm09:29:507
29575991816cyclictest21268-21qemu-kvm09:08:267
29575991816cyclictest21268-21qemu-kvm09:08:267
29566991816cyclictest2308-21snmpd11:38:514
2956699180cyclictest0-21swapper/210:06:024
29580991716cyclictest0-21swapper/1011:10:372
29580991716cyclictest0-21swapper/1008:37:472
2958099170cyclictest991850irq/53-eth0-rx-11:50:012
2958099170cyclictest991850irq/53-eth0-rx-11:35:232
2958099170cyclictest991850irq/53-eth0-rx-11:30:072
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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