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2026-01-08 - 10:31
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 50 million
Resolution of latency scale: reduced 
Duration: 5 hours, 33 minutes
Characteristics of the highest latencies:
System rack8slot1.osadl.org (updated Thu Jan 08, 2026 00:43:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2334399447624,0cyclictest0-21swapper23:09:230
23343993222554,0cyclictest3801-21munin-run23:18:380
23343992938662,0cyclictest6373-21aten2.4_r8power23:25:050
23343992917539,0cyclictest9-21ksoftirqd/023:59:250
233439927912156,0cyclictest0-21swapper23:45:090
23343992596274,0cyclictest28371-1kworker/0:1H00:08:440
23343992571566,0cyclictest23449-21sendmail_mailtr19:08:450
23343992569239,0cyclictest28371-1kworker/0:1H22:08:450
23343992429656,0cyclictest0-21swapper23:08:400
23343992386305,0cyclictest28371-1kworker/0:1H22:23:440
23343992322294,0cyclictest28371-1kworker/0:1H20:03:450
23343992301564,0cyclictest13897-21latency_hist20:23:440
23343992291723,0cyclictest6857-21latency_hist21:43:430
23343992287277,0cyclictest28371-1kworker/0:1H20:48:430
23343992287204,0cyclictest28371-1kworker/0:1H20:28:450
23343992273738,0cyclictest9-21ksoftirqd/022:48:440
23343992237266,0cyclictest28371-1kworker/0:1H23:28:430
23343992232612,0cyclictest9-21ksoftirqd/020:53:440
23343992132308,0cyclictest28371-1kworker/0:1H19:48:450
2334399210529,0cyclictest0-21swapper23:34:060
23343992052227,0cyclictest28371-1kworker/0:1H21:08:440
23343992005255,0cyclictest28371-1kworker/0:1H21:48:440
23343991990130,0cyclictest28371-1kworker/0:1H21:13:450
2334399196333,0cyclictest312702sleep023:03:420
23343991898295,0cyclictest28371-1kworker/0:1H21:03:530
23343991885255,0cyclictest28371-1kworker/0:1H20:33:440
23343991877673,0cyclictest21913-21munin-node22:33:430
23343991874303,0cyclictest28371-1kworker/0:1H22:53:430
23343991869201,0cyclictest28371-1kworker/0:1H21:53:450
23343991866147,0cyclictest28371-1kworker/0:1H20:08:450
23343991838313,0cyclictest28371-1kworker/0:1H19:08:390
23343991779547,0cyclictest9-21ksoftirqd/020:13:450
2334399176025,0cyclictest0-21swapper00:31:260
23343991754786,0cyclictest10497-21which23:38:480
23343991754163,0cyclictest28371-1kworker/0:1H00:33:440
23343991745300,0cyclictest28371-1kworker/0:1H19:18:550
23343991706219,0cyclictest28371-1kworker/0:1H21:23:440
23343991705723,0cyclictest9-21ksoftirqd/022:03:440
23343991703350,0cyclictest28371-1kworker/0:1H19:33:450
23343991685802,0cyclictest16017-21sendmail_mailtr22:13:450
23343991675203,0cyclictest28371-1kworker/0:1H19:43:450
2334399167130,0cyclictest28371-1kworker/0:1H00:21:100
23343991655257,0cyclictest28371-1kworker/0:1H19:28:440
23343991655233,0cyclictest28371-1kworker/0:1H19:23:440
23343991644123,0cyclictest28371-1kworker/0:1H21:18:550
23343991628194,0cyclictest28371-1kworker/0:1H23:53:480
23343991624220,0cyclictest28371-1kworker/0:1H21:28:460
23343991615265,0cyclictest28371-1kworker/0:1H21:58:550
23343991561523,0cyclictest5864-21fschecks_count19:56:260
23343991555456,0cyclictest4721-21fschecks_count21:36:290
23343991554477,0cyclictest21624-21seq00:17:100
23343991537447,0cyclictest9-21ksoftirqd/021:41:240
23343991537244,0cyclictest28371-1kworker/0:1H22:38:540
23343991494222,0cyclictest28371-1kworker/0:1H19:58:540
23343991468400,0cyclictest9-21ksoftirqd/020:41:350
23343991463281,0cyclictest9-21ksoftirqd/023:21:230
23343991452650,0cyclictest9-21ksoftirqd/019:38:590
233439914041206,0cyclictest28371-1kworker/0:1H00:06:470
23343991360343,0cyclictest9-21ksoftirqd/020:21:320
23343991353494,0cyclictest9-21ksoftirqd/022:28:480
23343991347268,0cyclictest28371-1kworker/0:1H20:58:530
23343991326158,0cyclictest28371-1kworker/0:1H20:43:450
2334399127265,0cyclictest28371-1kworker/0:1H19:13:450
23343991268295,0cyclictest28371-1kworker/0:1H00:23:470
23343991259348,0cyclictest9-21ksoftirqd/022:44:290
23343991218628,0cyclictest9-21ksoftirqd/023:48:460
23343991111366,0cyclictest9-21ksoftirqd/022:19:320
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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