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2026-04-04 - 20:16
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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 rack1slot2.osadl.org (updated Sat Apr 04, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2767124939,0sleep10-21swapper/107:17:511
2750224435,0sleep20-21swapper/207:15:522
2773622824,0sleep00-21swapper/007:18:340
2741622723,0sleep30-21swapper/307:14:533
339970,0migration/36595-21sh11:44:583
8305060,0irq/26-0000:00:23097-21proc_pri10:39:422
339960,0migration/39954-21sh12:08:023
339960,0migration/38889-21sh09:36:533
339960,0migration/331656-21sh10:29:163
339960,0migration/325505-21sh10:44:293
339960,0migration/324122-21sh11:55:383
339960,0migration/320740-21sh11:18:323
339960,0migration/317862-21sh12:10:563
339960,0migration/315852-21aten_r1power_cu09:24:333
339960,0migration/314058-21sh09:59:403
339960,0migration/311988-21sh09:58:473
29815060,0irq/29-eth0-tx-6723-21munin-node07:49:440
29815060,0irq/29-eth0-tx-10194-21munin-node07:29:350
29805060,0irq/28-eth0-rx-12585-21grep08:34:393
278829960,0cyclictest0-21swapper/211:50:112
149960,0migration/0544-21kthreadcore11:24:400
149960,0migration/025011-21kthreadcore12:34:420
149960,0migration/023929-21sh10:40:410
149960,0migration/016405-21sh10:38:400
8305050,0irq/26-0000:00:17524-21crond09:04:212
339950,0migration/39450-21kthreadcore09:19:393
339950,0migration/38551-21aten_r1power_en11:49:333
339950,0migration/38362-21munin-node10:34:333
339950,0migration/36488-21kthreadcore10:49:393
339950,0migration/331938-21taskset09:14:183
339950,0migration/331748-21kthreadcore10:09:393
339950,0migration/329646-21kthreadcore11:59:403
339950,0migration/328281-21kthreadcore09:29:383
339950,0migration/32532-21kthreadcore07:44:393
339950,0migration/322708-21kthreadcore08:19:403
339950,0migration/320031-21kthreadcore10:19:383
339950,0migration/319015-21munin-node09:44:343
339950,0migration/315646-21kthreadcore07:29:403
339950,0migration/31530-21kthreadcore10:29:393
339950,0migration/313308-21kthreadcore08:59:403
339950,0migration/312986-21taskset12:29:333
339950,0migration/310284-21proc_pri11:09:443
329950,0watchdog/39628-21kthreadcore10:14:413
329950,0watchdog/33658-21perl07:24:363
329950,0watchdog/33552-21lldpd12:15:573
329950,0watchdog/3298050irq/28-eth0-rx-11:20:413
329950,0watchdog/328187-21unixbench-2d12:34:493
329950,0watchdog/312388-21open_inodes11:29:413
329950,0watchdog/31208-21kthreadcore08:04:403
329950,0watchdog/30-21swapper/311:38:373
29815050,0irq/29-eth0-tx-9196-21ssh09:37:352
29815050,0irq/29-eth0-tx-5784-21memory11:44:412
29815050,0irq/29-eth0-tx-3783-21crond09:25:212
29815050,0irq/29-eth0-tx-3115-21munin-node08:09:350
29815050,0irq/29-eth0-tx-25377-21python10:59:452
29815050,0irq/29-eth0-tx-21110-21munin-node07:59:420
29815050,0irq/29-eth0-tx-19131-21port_sshpriv12:29:432
29815050,0irq/29-eth0-tx-14697-21munin-node10:19:412
29815050,0irq/29-eth0-tx-12701-21munin-node11:14:432
29815050,0irq/29-eth0-tx-12088-21ssh09:59:052
29815050,0irq/29-eth0-tx-10387-21munin-node08:14:450
29815050,0irq/29-eth0-tx-0-21swapper/008:57:140
29815050,0irq/29-eth0-tx-0-21swapper/008:46:380
29815050,0irq/29-eth0-tx-0-21swapper/007:54:350
29815050,0irq/29-eth0-tx-0-21swapper/007:40:220
29805050,0irq/28-eth0-rx-31831-21kthreadcore09:49:403
29805050,0irq/28-eth0-rx-28919-21irqcore11:04:403
29805050,0irq/28-eth0-rx-22289-21if_eth1.310:04:383
29805050,0irq/28-eth0-rx-21775-21kthreadcore10:39:393
29805050,0irq/28-eth0-rx-2042-21kthreadcore11:24:403
29805050,0irq/28-eth0-rx-14011-21chrt12:46:493
29805050,0irq/28-eth0-rx-0-21swapper/312:39:333
29805050,0irq/28-eth0-rx-0-21swapper/312:28:583
29805050,0irq/28-eth0-rx-0-21swapper/312:19:233
278829955,0cyclictest6875-21diskmemload12:36:042
278829955,0cyclictest0-21swapper/212:01:042
278829954,0cyclictest3524-21snmpd08:02:292
278829950,0cyclictest0-21swapper/211:54:272
278829950,0cyclictest0-21swapper/210:17:392
278819955,0cyclictest0-21swapper/111:46:081
278819955,0cyclictest0-21swapper/111:41:531
278819950,0cyclictest0-21swapper/110:46:231
278819950,0cyclictest0-21swapper/110:40:241
278819950,0cyclictest0-21swapper/110:28:061
278819950,0cyclictest0-21swapper/109:20:091
278809954,0cyclictest2922-21awk10:49:370
278809954,0cyclictest21300-21munin-run12:34:230
27150,0ktimersoftd/20-21swapper/211:33:572
259950,0migration/231203-21kthreadcore09:49:402
259950,0migration/231039-21fschecks_time12:39:362
259950,0migration/228441-21kthreadcore10:44:392
259950,0migration/22752-21fschecks_time12:04:352
259950,0migration/224640-21latency_hist08:24:212
259950,0migration/222116-21hwlatdetect10:04:372
259950,0migration/218378-21sh09:43:452
259950,0migration/218274-21sh12:12:062
259950,0migration/216139-21kthreadcore09:59:412
259950,0migration/214377-21netstat10:34:412
259950,0migration/210634-21processes12:24:442
249950,0watchdog/231517-21kthreadcore11:04:412
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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