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2026-04-29 - 06:45
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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 Wed Apr 29, 2026 00:46:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
128501140irq/42-ahci0-21swapper/119:09:091
26117211096sleep40-21swapper/419:07:456
26056210993sleep00-21swapper/019:06:530
26320210498sleep30-21swapper/319:09:445
26298210499sleep80-21swapper/819:09:2510
26106210491sleep60-21swapper/619:07:358
128501000irq/42-ahci0-21swapper/219:09:094
991850810irq/53-eth0-rx-0-21swapper/519:08:147
991950730irq/54-eth0-tx-0-21swapper/919:05:1711
991850720irq/53-eth0-rx-0-21swapper/719:09:269
2552726353sleep110-21swapper/1119:05:283
2595526252sleep100-21swapper/1019:05:402
26486993514cyclictest0-21swapper/1120:26:413
26485993114cyclictest831ksoftirqd/1020:18:452
26485993114cyclictest811rcuc/1022:30:572
2648599269cyclictest831ksoftirqd/1022:58:422
2648599236cyclictest831ksoftirqd/1021:27:552
2648599236cyclictest831ksoftirqd/1000:21:242
26471992322cyclictest9849-21ssh22:23:146
2648599225cyclictest831ksoftirqd/1021:32:502
2648599225cyclictest831ksoftirqd/1000:18:392
2644599220cyclictest0-21swapper/019:29:190
2648599214cyclictest831ksoftirqd/1023:02:132
26445992120cyclictest0-21swapper/021:13:080
2644599204cyclictest0-21swapper/000:31:330
2644599201cyclictest0-21swapper/023:27:420
2644599201cyclictest0-21swapper/023:27:410
2648599192cyclictest991850irq/53-eth0-rx-23:06:152
2648599192cyclictest991850irq/53-eth0-rx-22:46:262
2648599192cyclictest991850irq/53-eth0-rx-00:03:492
2648599192cyclictest991850irq/53-eth0-rx-00:03:492
2648499192cyclictest0-21swapper/922:50:3411
2648499192cyclictest0-21swapper/921:58:1311
2648499192cyclictest0-21swapper/921:52:2011
2648199195cyclictest0-21swapper/619:43:198
2644599195cyclictest0-21swapper/022:01:030
2644599190cyclictest0-21swapper/021:08:160
26485991817cyclictest341-21cpu23:10:142
26485991817cyclictest14418-21kworker/10:022:50:382
26485991817cyclictest14418-21kworker/10:000:37:002
26485991817cyclictest0-21swapper/1023:56:242
26485991817cyclictest0-21swapper/1023:56:242
26485991817cyclictest0-21swapper/1023:52:452
26485991817cyclictest0-21swapper/1023:52:442
26485991817cyclictest0-21swapper/1023:41:052
26485991817cyclictest0-21swapper/1022:26:092
26485991817cyclictest0-21swapper/1022:22:382
26485991817cyclictest0-21swapper/1022:17:532
26485991817cyclictest0-21swapper/1021:41:562
26485991817cyclictest0-21swapper/1020:39:012
26485991817cyclictest0-21swapper/1000:26:112
2648599181cyclictest991950irq/54-eth0-tx-23:46:482
2648599181cyclictest991950irq/54-eth0-tx-00:06:002
2648599181cyclictest991950irq/54-eth0-tx-00:05:592
2648599181cyclictest991850irq/53-eth0-rx-23:30:222
2648599181cyclictest991850irq/53-eth0-rx-23:18:472
2648599181cyclictest991850irq/53-eth0-rx-21:47:092
2648599181cyclictest991850irq/53-eth0-rx-21:37:332
2648599181cyclictest991850irq/53-eth0-rx-21:16:562
2648599181cyclictest991850irq/53-eth0-rx-19:35:232
2648599181cyclictest991850irq/53-eth0-rx-00:34:052
2648599181cyclictest991850irq/53-eth0-rx-00:11:132
2648599181cyclictest831ksoftirqd/1023:21:582
2648599181cyclictest831ksoftirqd/1022:35:122
2648599181cyclictest831ksoftirqd/1022:05:122
2648599181cyclictest831ksoftirqd/1022:02:472
2648599181cyclictest831ksoftirqd/1021:20:132
2648599181cyclictest831ksoftirqd/1019:25:142
2648599181cyclictest811rcuc/1022:10:202
2648599181cyclictest12850irq/42-ahci20:08:292
2648599181cyclictest12850irq/42-ahci19:11:582
2648499181cyclictest761ksoftirqd/900:35:1511
2648499181cyclictest0-21swapper/923:52:4511
2648499181cyclictest0-21swapper/923:52:4411
2648499181cyclictest0-21swapper/923:35:1411
2648499181cyclictest0-21swapper/923:26:1411
2648499181cyclictest0-21swapper/923:26:1411
2648499181cyclictest0-21swapper/923:20:1511
2648499181cyclictest0-21swapper/923:08:2111
2648499181cyclictest0-21swapper/922:36:3811
2648499181cyclictest0-21swapper/922:10:1311
2648499181cyclictest0-21swapper/922:08:2411
2648499181cyclictest0-21swapper/921:39:0911
2648499181cyclictest0-21swapper/921:20:0911
2648499181cyclictest0-21swapper/921:18:4911
2648499181cyclictest0-21swapper/921:01:2411
2648499181cyclictest0-21swapper/919:20:1211
2648499181cyclictest0-21swapper/919:15:1411
2648499181cyclictest0-21swapper/900:31:2711
2648499181cyclictest0-21swapper/900:11:3911
2648499181cyclictest0-21swapper/900:05:1811
2648499181cyclictest0-21swapper/900:05:1711
2644599184cyclictest0-21swapper/019:15:040
2644599183cyclictest18504-21diskmemload21:55:220
26445991814cyclictest0-21swapper/020:24:350
2644599180cyclictest0-21swapper/020:13:060
26485991716cyclictest8472-1kworker/10:2H23:35:062
26485991716cyclictest0-21swapper/1020:00:322
26485991716cyclictest0-21swapper/1019:15:562
2648599170cyclictest991850irq/53-eth0-rx-23:25:172
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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