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2026-07-12 - 02:12
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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 Sun Jul 12, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
902823829,0sleep20-21swapper/219:24:072
906523728,0sleep10-21swapper/119:24:301
904323524,0sleep00-21swapper/019:24:170
905623228,0sleep30-21swapper/319:24:283
93969960,0cyclictest0-21swapper/200:20:442
93919966,0cyclictest19802-21sensors20:37:491
93919965,0cyclictest0-21swapper/121:17:451
93919965,0cyclictest0-21swapper/121:17:451
93919960,0cyclictest0-21swapper/122:27:271
93919960,0cyclictest0-21swapper/100:15:451
93809965,0cyclictest2782-21sadc23:27:270
93809965,0cyclictest0-21swapper/021:38:560
339960,0migration/331119-21latency_hist00:02:273
339960,0migration/325545-21sh00:33:253
339960,0migration/324069-21sh23:02:093
339960,0migration/321699-21taskset22:42:023
339960,0migration/314962-21gltestperf23:52:413
339960,0migration/310888-21irqrtprio23:12:453
339960,0migration/310566-21sh00:43:343
29805060,0irq/28-eth0-rx-28222-21munin-run22:27:263
29805060,0irq/28-eth0-rx-18983-21users00:47:553
179960,0migration/126901-21timerandwakeup19:57:511
149960,0migration/03656-21sh23:43:280
149960,0migration/025831-21taskset00:34:120
149960,0migration/020977-21munin-node19:57:390
93969955,0cyclictest0-21swapper/223:43:312
93969955,0cyclictest0-21swapper/223:24:272
93969955,0cyclictest0-21swapper/221:39:172
93969955,0cyclictest0-21swapper/220:27:522
93969955,0cyclictest0-21swapper/200:05:552
93969950,0cyclictest0-21swapper/221:36:272
93969950,0cyclictest0-21swapper/219:52:242
93919955,0cyclictest20765-21diskmemload21:50:521
93919955,0cyclictest0-21swapper/123:07:581
93919950,0cyclictest0-21swapper/123:30:301
93919950,0cyclictest0-21swapper/123:15:131
93919950,0cyclictest0-21swapper/122:39:351
93919950,0cyclictest0-21swapper/100:33:061
93919950,0cyclictest0-21swapper/100:23:481
93809953,0cyclictest32370-21kworker/0:000:03:140
93809953,0cyclictest26781-21kworker/0:223:57:540
93809953,0cyclictest26781-21kworker/0:223:48:200
93809953,0cyclictest26781-21kworker/0:223:32:200
93809953,0cyclictest26781-21kworker/0:222:48:040
93809953,0cyclictest26781-21kworker/0:222:43:060
93809953,0cyclictest26781-21kworker/0:222:38:240
93809953,0cyclictest26781-21kworker/0:222:34:060
93809953,0cyclictest26781-21kworker/0:222:00:200
93809953,0cyclictest17393-21kworker/0:200:28:140
93809950,0cyclictest0-21swapper/000:56:000
8305050,0irq/26-0000:00:0-21swapper/220:42:422
339950,0migration/39729-21kthreadcore23:47:443
339950,0migration/39228-21munin-node22:12:583
339950,0migration/38554-21kthreadcore21:17:443
339950,0migration/38554-21kthreadcore21:17:443
339950,0migration/37727-21munin-node21:37:443
339950,0migration/36012-21latency_hist19:47:263
339950,0migration/35302-21munin-node22:32:403
339950,0migration/33780-21timerandwakeup21:32:553
339950,0migration/331565-21kthreadcore20:02:443
339950,0migration/329938-21kthreadcore00:17:463
339950,0migration/328450-21taskset22:27:293
339950,0migration/327519-21kthreadcore22:42:473
339950,0migration/32676-21sh00:40:483
339950,0migration/325622-21if_eth123:02:453
339950,0migration/323875-21taskset21:03:163
339950,0migration/320309-21crond19:57:263
339950,0migration/318516-21kthreadcore00:12:453
339950,0migration/317163-21missed_timers22:17:473
339950,0migration/316141-21diskmemload21:59:303
339950,0migration/313012-21kthreadcore20:57:443
339950,0migration/312403-21munin-node20:32:463
339950,0migration/31174-21fschecks_count23:07:413
339950,0migration/31098-21kthreadcore23:42:453
329950,0watchdog/3577-21sh22:08:303
329950,0watchdog/34835-21kthreadcore00:02:463
329950,0watchdog/331663-21ksmtuned21:12:303
329950,0watchdog/327186-21munin-node20:42:543
329950,0watchdog/321069-21kthreadcore22:02:463
329950,0watchdog/312284-21grep23:32:423
29815050,0irq/29-eth0-tx-9599-21munin-node19:27:420
29815050,0irq/29-eth0-tx-7684-21ssh21:55:062
29815050,0irq/29-eth0-tx-31681-21munin-node21:12:540
29815050,0irq/29-eth0-tx-24484-21munin-node23:02:422
29815050,0irq/29-eth0-tx-23877-21ssh23:57:432
29815050,0irq/29-eth0-tx-19106-21grep21:42:432
29815050,0irq/29-eth0-tx-18658-21munin-node00:32:492
29815050,0irq/29-eth0-tx-16480-21perl22:57:412
29815050,0irq/29-eth0-tx-13588-21kthreadcore00:27:462
29815050,0irq/29-eth0-tx-13498-21munin-node22:37:472
29815050,0irq/29-eth0-tx-12487-21ssh23:48:552
29815050,0irq/29-eth0-tx-11774-21munin-node23:32:422
29815050,0irq/29-eth0-tx-10107-21munin-node20:57:410
29815050,0irq/29-eth0-tx-0-21swapper/222:00:532
29815050,0irq/29-eth0-tx-0-21swapper/200:10:002
29815050,0irq/29-eth0-tx-0-21swapper/021:27:540
29815050,0irq/29-eth0-tx-0-21swapper/020:27:400
29815050,0irq/29-eth0-tx-0-21swapper/020:12:500
29805050,0irq/28-eth0-rx-30730-21ssh22:47:283
29805050,0irq/28-eth0-rx-28224-21ssh21:29:563
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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