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2026-08-16 - 19:31
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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 50 highest latencies:
System rack1slot2.osadl.org (updated Sun Aug 16, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3165824940,0sleep10-21swapper/107:26:291
3191923728,0sleep30-21swapper/307:29:313
3187523728,0sleep20-21swapper/207:29:022
3177123322,0sleep00-21swapper/007:27:480
4160,0ktimersoftd/00-21swapper/009:25:400
339960,0migration/332257-21sh11:53:323
339960,0migration/32921-21sh12:31:273
339960,0migration/327640-21sh11:11:033
339960,0migration/325765-21sh10:50:493
339960,0migration/324514-21sh10:32:363
339960,0migration/32164-21ntp_offset09:40:423
339960,0migration/312635-21sh11:21:383
339960,0migration/310192-21kthreadcore09:45:423
29815060,0irq/29-eth0-tx-0-21swapper/211:49:002
29805060,0irq/28-eth0-rx-15882-21date11:45:223
149960,0migration/06975-21kthreadcore09:45:410
149960,0migration/024202-21kthreadcore09:15:400
149960,0migration/02159-21latency07:50:400
8305050,0irq/26-0000:00:0-21swapper/308:10:223
8305050,0irq/26-0000:00:0-21swapper/212:45:222
339950,0migration/37792-21runrttasks11:56:293
339950,0migration/332698-21cpuspeed_turbos10:20:353
339950,0migration/332457-21kthreadcore07:50:403
339950,0migration/329027-21munin-node08:35:353
339950,0migration/328434-21taskset08:32:053
339950,0migration/326899-21fschecks_count12:10:373
339950,0migration/324519-21kthreadcore11:30:383
339950,0migration/324264-21kthreadcore09:55:393
339950,0migration/323068-21munin-node12:45:383
339950,0migration/321956-21kthreadcore12:25:413
339950,0migration/320909-21runrttasks12:44:023
339950,0migration/320409-21kthreadcore09:10:423
339950,0migration/317686-21kthreadcore08:25:393
339950,0migration/31571-21kthreadcore07:30:393
339950,0migration/315144-21munin-node07:40:353
339950,0migration/314266-21sh12:59:043
339950,0migration/314210-21taskset09:06:103
339950,0migration/314195-21kthreadcore08:45:403
339950,0migration/310949-21df_abs10:45:353
339950,0migration/310148-21kthreadcore07:35:403
320739950,0cyclictest0-21swapper/212:56:582
320739950,0cyclictest0-21swapper/211:38:552
320649955,0cyclictest0-21swapper/111:26:241
320649955,0cyclictest0-21swapper/111:17:351
320649955,0cyclictest0-21swapper/111:03:521
320649950,0cyclictest0-21swapper/111:25:091
320649950,0cyclictest0-21swapper/111:10:291
320639955,0cyclictest0-21swapper/012:57:240
320639950,0cyclictest0-21swapper/012:13:440
320639950,0cyclictest0-21swapper/010:15:290
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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