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2025-07-14 - 21:22
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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 Mon Jul 14, 2025 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
170425647,0sleep20-21swapper/206:25:332
172325039,0sleep10-21swapper/106:25:481
162923424,0sleep30-21swapper/306:24:423
158723026,0sleep00-21swapper/006:24:150
329970,0watchdog/325987-21munin-node09:58:023
329970,0watchdog/30-21swapper/306:28:153
29925070,0irq/32-eth0-rx-26692-21kthreadcore11:13:093
29925070,0irq/32-eth0-rx-0-21swapper/310:58:093
29925070,0irq/32-eth0-rx-0-21swapper/310:13:113
339960,0migration/320738-21sh08:57:553
339960,0migration/320348-21munin-node08:13:083
329960,0watchdog/3299250irq/32-eth0-rx-09:08:463
329960,0watchdog/3130012sleep306:55:393
329960,0watchdog/30-21swapper/311:56:543
329960,0watchdog/30-21swapper/311:48:103
329960,0watchdog/30-21swapper/311:38:103
329960,0watchdog/30-21swapper/311:24:463
329960,0watchdog/30-21swapper/311:18:103
329960,0watchdog/30-21swapper/311:11:023
329960,0watchdog/30-21swapper/310:32:583
329960,0watchdog/30-21swapper/310:18:503
329960,0watchdog/30-21swapper/310:08:103
329960,0watchdog/30-21swapper/309:55:103
329960,0watchdog/30-21swapper/309:50:583
329960,0watchdog/30-21swapper/309:23:183
329960,0watchdog/30-21swapper/309:20:543
329960,0watchdog/30-21swapper/308:53:023
329960,0watchdog/30-21swapper/308:48:103
329960,0watchdog/30-21swapper/308:39:223
329960,0watchdog/30-21swapper/307:15:193
329960,0watchdog/30-21swapper/306:47:513
29935060,0irq/33-eth0-tx-22159-21munin-node07:53:110
29935060,0irq/33-eth0-tx-0-21swapper/210:29:482
29925060,0irq/32-eth0-rx-5268-21df10:43:053
29925060,0irq/32-eth0-rx-25598-21iostat_ios09:38:063
29925060,0irq/32-eth0-rx-22692-21perl10:53:083
29925060,0irq/32-eth0-rx-0-21swapper/311:44:433
29925060,0irq/32-eth0-rx-0-21swapper/311:44:433
29925060,0irq/32-eth0-rx-0-21swapper/311:33:163
29925060,0irq/32-eth0-rx-0-21swapper/311:28:053
29925060,0irq/32-eth0-rx-0-21swapper/310:50:113
29925060,0irq/32-eth0-rx-0-21swapper/310:23:143
29925060,0irq/32-eth0-rx-0-21swapper/309:44:253
29925060,0irq/32-eth0-rx-0-21swapper/309:33:453
29925060,0irq/32-eth0-rx-0-21swapper/309:28:223
29925060,0irq/32-eth0-rx-0-21swapper/307:33:073
19709960,0cyclictest0-21swapper/210:43:122
19709960,0cyclictest0-21swapper/210:18:172
4150,0ktimersoftd/00-21swapper/008:52:010
339950,0migration/38087-21irqrtprio11:03:083
339950,0migration/34181-21fschecks_count07:18:053
339950,0migration/330352-21munin-node07:58:083
339950,0migration/329202-21fschecks_count10:38:073
339950,0migration/327603-21kthreadcore07:53:133
339950,0migration/325718-21kthreadcore06:43:113
339950,0migration/31686-21irqcore07:38:173
339950,0migration/31420-21munin-node08:23:063
339950,0migration/313452-21kthreadcore07:23:103
329950,0watchdog/30-21swapper/309:13:223
329950,0watchdog/30-21swapper/308:42:543
329950,0watchdog/30-21swapper/308:32:583
329950,0watchdog/30-21swapper/308:28:303
329950,0watchdog/30-21swapper/308:07:553
329950,0watchdog/30-21swapper/308:03:113
329950,0watchdog/30-21swapper/307:51:553
329950,0watchdog/30-21swapper/307:44:393
329950,0watchdog/30-21swapper/307:30:073
329950,0watchdog/30-21swapper/307:08:313
329950,0watchdog/30-21swapper/307:03:473
329950,0watchdog/30-21swapper/306:58:193
329950,0watchdog/30-21swapper/306:38:113
329950,0watchdog/30-21swapper/306:33:313
29935050,0irq/33-eth0-tx-31055-21users09:38:162
29935050,0irq/33-eth0-tx-18546-21munin-node08:38:112
29935050,0irq/33-eth0-tx-16429-21iostat_ios11:08:082
29935050,0irq/33-eth0-tx-15912-21munin-node09:33:112
29935050,0irq/33-eth0-tx-14218-21munin-node07:03:130
29935050,0irq/33-eth0-tx-10601-21munin-node10:08:062
29935050,0irq/33-eth0-tx-0-21swapper/008:28:460
29935050,0irq/33-eth0-tx-0-21swapper/008:10:590
29935050,0irq/33-eth0-tx-0-21swapper/006:43:570
29925050,0irq/32-eth0-rx-11789-21munin-node10:28:063
29925050,0irq/32-eth0-rx-0-21swapper/310:03:303
29925050,0irq/32-eth0-rx-0-21swapper/309:03:053
29925050,0irq/32-eth0-rx-0-21swapper/308:18:103
259950,0migration/26490-21ntp_offset07:38:212
259950,0migration/22520-21runrttasks11:37:582
259950,0migration/223994-21cpuspeed_turbos11:13:042
259950,0migration/21971-21sh10:02:522
259950,0migration/218507-21hddtemp_smartct09:53:082
259950,0migration/217987-21irqcore06:38:142
249950,0watchdog/20-21swapper/206:28:072
19709955,0cyclictest0-21swapper/211:56:022
19709955,0cyclictest0-21swapper/208:58:592
19709955,0cyclictest0-21swapper/208:54:442
19709950,0cyclictest0-21swapper/209:03:152
19699955,0cyclictest0-21swapper/111:03:141
19699954,0cyclictest14762-21grep07:03:071
19699950,0cyclictest0-21swapper/110:34:041
19699950,0cyclictest0-21swapper/108:55:321
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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