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2026-08-12 - 12:27
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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 Aug 12, 2026 00:46:28)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
122501100irq/42-ahci0-21swapper/119:09:011
25391210894sleep80-21swapper/819:06:2810
25359210895sleep90-21swapper/919:06:0511
25326210895sleep40-21swapper/419:05:366
25291210693sleep70-21swapper/719:05:279
3054950940irq/53-eth0-rx-0-21swapper/1019:07:172
12250940irq/42-ahci0-21swapper/219:08:354
12250930irq/42-ahci0-21swapper/319:08:225
3054950890irq/53-eth0-rx-0-21swapper/519:07:427
2223726455sleep60-21swapper/619:05:028
2552026253sleep110-21swapper/1119:08:093
2547826158sleep00-21swapper/019:07:320
25836993029cyclictest3055050irq/54-eth0-tx-21:15:561
25862992928cyclictest3055050irq/54-eth0-tx-21:16:033
25843992827cyclictest3055050irq/54-eth0-tx-21:15:594
25857992726cyclictest3055050irq/54-eth0-tx-21:15:492
25857992517cyclictest12189-21ssh00:30:182
25857992515cyclictest0-21swapper/1023:02:202
25852992524cyclictest3054950irq/53-eth0-rx-21:15:587
25857992417cyclictest0-21swapper/1019:25:482
25857992416cyclictest0-21swapper/1023:41:412
25857992416cyclictest0-21swapper/1022:02:502
25857992416cyclictest0-21swapper/1022:02:492
25857992416cyclictest0-21swapper/1021:44:002
25857992415cyclictest0-21swapper/1022:57:112
25857992415cyclictest0-21swapper/1000:24:512
25857992316cyclictest9528-1kworker/10:1H19:37:502
25857992316cyclictest31278-1kworker/10:0H22:20:072
25857992316cyclictest12875-21kworker/10:222:44:452
25857992316cyclictest0-21swapper/1023:17:282
25857992316cyclictest0-21swapper/1023:06:442
25857992316cyclictest0-21swapper/1022:25:552
25857992316cyclictest0-21swapper/1021:46:352
25857992316cyclictest0-21swapper/1021:39:222
25857992316cyclictest0-21swapper/1021:39:212
25857992316cyclictest0-21swapper/1019:20:522
25857992316cyclictest0-21swapper/1000:15:112
25857992315cyclictest31278-1kworker/10:0H21:10:082
25857992315cyclictest31278-1kworker/10:0H21:10:082
25857992315cyclictest12875-21kworker/10:200:06:002
25857992315cyclictest0-21swapper/1021:54:182
25857992315cyclictest0-21swapper/1021:21:502
25857992315cyclictest0-21swapper/1000:37:182
25857992314cyclictest0-21swapper/1019:50:212
25852992315cyclictest19902-21ntp_states00:10:217
2586299227cyclictest0-21swapper/1122:24:013
25857992216cyclictest0-21swapper/1023:59:112
25857992216cyclictest0-21swapper/1022:51:292
25857992216cyclictest0-21swapper/1022:14:042
25857992216cyclictest0-21swapper/1019:59:122
25857992216cyclictest0-21swapper/1019:11:282
25857992216cyclictest0-21swapper/1000:10:582
25857992215cyclictest0-21swapper/1021:57:242
25857992214cyclictest0-21swapper/1023:31:542
25855992221cyclictest3055050irq/54-eth0-tx-21:16:0010
25857992115cyclictest0-21swapper/1022:45:212
25857992115cyclictest0-21swapper/1022:38:222
25857992115cyclictest0-21swapper/1022:18:292
25857992114cyclictest0-21swapper/1021:30:112
25857992014cyclictest0-21swapper/1020:05:242
25852992013cyclictest26107-21ssh22:06:127
2585299200cyclictest0-21swapper/522:23:537
25823992019cyclictest0-21swapper/021:15:490
25823992018cyclictest0-21swapper/019:25:230
2582399200cyclictest0-21swapper/020:30:460
2585799192cyclictest3054950irq/53-eth0-rx-23:49:312
2585799192cyclictest3054950irq/53-eth0-rx-23:28:082
2585799192cyclictest3054950irq/53-eth0-rx-23:12:302
2585799192cyclictest12250irq/42-ahci20:23:482
25857991917cyclictest12875-21kworker/10:222:33:062
25857991914cyclictest0-21swapper/1000:04:232
2585699192cyclictest0-21swapper/922:25:2311
2586299184cyclictest0-21swapper/1121:52:383
25857991817cyclictest0-21swapper/1020:30:152
2585799181cyclictest3055050irq/54-eth0-tx-23:20:292
2585799181cyclictest3055050irq/54-eth0-tx-22:05:082
2585799181cyclictest3055050irq/54-eth0-tx-00:26:082
2585799181cyclictest3054950irq/53-eth0-rx-23:51:312
2585799181cyclictest3054950irq/53-eth0-rx-23:38:172
2585799181cyclictest3054950irq/53-eth0-rx-21:26:262
2585799181cyclictest3054950irq/53-eth0-rx-20:11:442
2585799181cyclictest12250irq/42-ahci20:41:092
2585799181cyclictest12250irq/42-ahci20:35:552
2585799181cyclictest12250irq/42-ahci20:17:162
2585799180cyclictest102942sleep1020:58:542
2585699181cyclictest761ksoftirqd/922:15:0111
2585699181cyclictest6420-21perl00:00:1611
2585699181cyclictest31881-21ssh23:03:3411
2585699181cyclictest27682-21iostat_ios23:25:1711
2585699181cyclictest0-21swapper/923:51:1111
2585699181cyclictest0-21swapper/923:46:2111
2585699181cyclictest0-21swapper/923:41:5111
2585699181cyclictest0-21swapper/923:30:1211
2585699181cyclictest0-21swapper/923:12:1211
2585699181cyclictest0-21swapper/923:06:4611
2585699181cyclictest0-21swapper/922:55:2711
2585699181cyclictest0-21swapper/922:54:3711
2585699181cyclictest0-21swapper/922:43:4411
2585699181cyclictest0-21swapper/922:35:1811
2585699181cyclictest0-21swapper/922:22:4311
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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