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2026-06-15 - 00:18
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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 Jun 14, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3203326867,0sleep10-21swapper/107:22:441
3219824030,0sleep20-21swapper/207:24:422
3190323928,0sleep00-21swapper/007:21:150
3185323828,0sleep30-21swapper/307:20:423
32316991212,0cyclictest3154-21sensors09:35:340
323169999,0cyclictest3524-21snmpd11:23:320
339960,0migration/35668-21sh10:53:203
339960,0migration/329295-21sh10:48:153
339960,0migration/326989-21sh11:41:483
339960,0migration/325463-21sh12:37:413
339960,0migration/320384-21aten_r1power_en09:30:243
339960,0migration/320346-21sh11:56:123
339960,0migration/318446-21sh08:45:123
339960,0migration/315062-21munin-node11:15:333
339960,0migration/313486-21sh09:43:083
323189966,0cyclictest0-21swapper/212:10:332
323189960,0cyclictest0-21swapper/208:35:312
29815060,0irq/29-eth0-tx-21846-21munin-node07:40:370
29815060,0irq/29-eth0-tx-15233-21munin-node09:05:260
29805060,0irq/28-eth0-rx-4470-21netstat12:05:323
29805060,0irq/28-eth0-rx-1865-21iostat12:25:283
29805060,0irq/28-eth0-rx-17409-21df_inode10:05:263
29805060,0irq/28-eth0-rx-1650-21ntp_states10:30:333
29805060,0irq/28-eth0-rx-12231-21diskstats09:25:263
149960,0migration/03497-21unixbench-2d08:30:370
149960,0migration/026013-21sh12:39:100
149960,0migration/020812-21sh11:57:310
149960,0migration/014560-21sh12:12:510
4150,0ktimersoftd/00-21swapper/012:25:140
339950,0migration/39933-21kthreadcore12:10:303
339950,0migration/3822-21runrttasks08:10:263
339950,0migration/3822-21runrttasks08:10:263
339950,0migration/35226-21kthreadcore12:45:293
339950,0migration/33560-21taskset07:48:213
339950,0migration/330677-21rt-features12:20:343
339950,0migration/326630-21gltestperf10:10:273
339950,0migration/324794-21kthreadcore12:00:313
339950,0migration/323863-21kthreadcore08:25:303
339950,0migration/322025-21sendmail_mailtr12:15:373
339950,0migration/321143-21kthreadcore11:20:323
339950,0migration/320626-21kthreadcore09:05:313
339950,0migration/32047-21runrttasks10:15:243
339950,0migration/317811-21ntp_kernel_pll_12:50:333
339950,0migration/316286-21kthreadcore09:45:303
339950,0migration/31566-21kthreadcore09:55:293
339950,0migration/314062-21munin-node10:40:303
339950,0migration/313625-21kthreadcore12:30:303
339950,0migration/31319-21runrttasks12:41:383
339950,0migration/311868-21munin-node10:20:333
339950,0migration/311468-21cpu11:35:253
339950,0migration/310518-21runrttasks10:35:333
323189955,0cyclictest0-21swapper/211:49:452
323189955,0cyclictest0-21swapper/211:21:412
323189955,0cyclictest0-21swapper/211:15:032
323189955,0cyclictest0-21swapper/211:07:392
323179950,0cyclictest0-21swapper/109:45:321
323169954,0cyclictest19741-21if_err_eth1.208:45:280
323169950,0cyclictest0-21swapper/012:04:450
323169950,0cyclictest0-21swapper/010:02:340
329950,0watchdog/329749-21aten2.4-expect09:15:233
329950,0watchdog/328467-21ssh11:45:163
329950,0watchdog/323965-21telnet11:05:243
329950,0watchdog/319320-21grep08:00:273
29815050,0irq/29-eth0-tx-9777-21ssh12:30:252
29815050,0irq/29-eth0-tx-7747-21munin-node08:15:400
29815050,0irq/29-eth0-tx-29008-21if_err_eth1.210:30:282
29815050,0irq/29-eth0-tx-12619-21expr12:50:272
29815050,0irq/29-eth0-tx-10899-21cpuspeed_turbos10:20:292
29815050,0irq/29-eth0-tx-0-21swapper/212:20:302
29815050,0irq/29-eth0-tx-0-21swapper/210:52:562
29815050,0irq/29-eth0-tx-0-21swapper/210:41:312
29815050,0irq/29-eth0-tx-0-21swapper/009:15:250
29815050,0irq/29-eth0-tx-0-21swapper/007:47:330
29805050,0irq/28-eth0-rx-32036-21kthreadcore11:25:303
29805050,0irq/28-eth0-rx-18109-21chrt07:59:243
29805050,0irq/28-eth0-rx-0-21swapper/311:12:113
29805050,0irq/28-eth0-rx-0-21swapper/311:03:433
29805050,0irq/28-eth0-rx-0-21swapper/310:25:303
29805050,0irq/28-eth0-rx-0-21swapper/310:01:453
29805050,0irq/28-eth0-rx-0-21swapper/308:35:293
259950,0migration/29889-21irqrtprio10:00:292
259950,0migration/29819-21sh11:32:032
259950,0migration/29157-21ntp_offset12:45:322
259950,0migration/231619-21ntp_kernel_pll_08:05:322
259950,0migration/222844-21munin-node10:45:262
259950,0migration/220759-21kthreadcore12:35:312
249950,0watchdog/227438-21kthreadcore12:00:322
249950,0watchdog/222785-21kthreadcore08:45:312
179950,0migration/15826-21munin-node08:35:291
179950,0migration/124352-21munin-node12:35:361
179950,0migration/121527-21kthreadcore11:20:321
179950,0migration/116731-21munin-node12:15:281
179950,0migration/115349-21aten_r1power_fr11:00:241
179950,0migration/114617-21taskset09:00:491
179950,0migration/112024-21sh10:38:251
169950,0watchdog/132688-21ssh12:25:001
169950,0watchdog/119319-21gltestperf08:00:271
169950,0watchdog/10-21swapper/110:10:321
149950,0migration/07064-21df_abs10:55:260
149950,0migration/06157-21kthreadcore08:35:290
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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