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2025-09-03 - 00:32
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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 rack5slot3.osadl.org (updated Tue Sep 02, 2025 12:50:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1691328753,30sleep70-21swapper/707:08:137
1700327845,29sleep30-21swapper/307:09:293
1688527844,30sleep60-21swapper/607:07:476
1672127643,29sleep50-21swapper/507:05:315
1701527541,29sleep40-21swapper/407:09:394
1674827440,30sleep20-21swapper/207:05:512
1673627338,30sleep00-21swapper/007:05:420
1431627337,29sleep10-21swapper/107:05:021
208482480,0sleep20-21swapper/209:54:442
238562460,0sleep30-21swapper/311:45:183
7692450,0sleep30-21swapper/311:50:153
273582450,0sleep10-21swapper/111:47:251
241042430,0sleep40-21swapper/409:24:454
1767899270,0cyclictest0-21swapper/307:15:103
17679992525,0cyclictest0-21swapper/411:11:254
17677992418,3cyclictest1559-21snmpd10:57:522
17679992323,0cyclictest69450irq/124-eth012:39:574
17677992119,2cyclictest630-21avahi-daemon12:02:492
17680992019,1cyclictest0-21swapper/510:46:105
1767999203,15cyclictest69450irq/124-eth007:15:004
17680991913,6cyclictest10469-21nscd12:25:175
17679991919,0cyclictest0-21swapper/408:15:114
17679991919,0cyclictest0-21swapper/408:15:114
17678991910,6cyclictest41-21ksoftirqd/308:15:013
17677991910,0cyclictest0-21swapper/211:24:472
229842180,0sleep60-21swapper/611:45:136
17681991812,2cyclictest7318-21grep08:35:196
17679991810,0cyclictest0-21swapper/411:57:344
17678991817,1cyclictest22157-21ls10:10:163
17675991815,3cyclictest650-21nscd12:05:170
17675991810,8cyclictest0-21swapper/011:53:440
17675991810,0cyclictest0-21swapper/011:19:180
7402170,0sleep30-21swapper/309:45:013
17682991710,4cyclictest0-21swapper/711:55:317
17680991710,7cyclictest0-21swapper/512:12:115
17679991716,0cyclictest69450irq/124-eth010:54:164
1767699170,17cyclictest0-21swapper/111:35:201
17675991710,5cyclictest0-21swapper/012:37:010
17682991610,6cyclictest0-21swapper/710:50:157
17682991610,2cyclictest0-21swapper/711:43:387
17682991610,1cyclictest0-21swapper/712:37:517
17682991610,0cyclictest0-21swapper/712:30:587
17682991610,0cyclictest0-21swapper/712:20:587
17682991610,0cyclictest0-21swapper/711:34:497
17682991610,0cyclictest0-21swapper/711:29:037
17682991610,0cyclictest0-21swapper/710:37:507
17681991610,0cyclictest0-21swapper/612:36:106
17681991610,0cyclictest0-21swapper/610:56:306
17681991610,0cyclictest0-21swapper/610:50:256
17680991615,0cyclictest18722-21nscd12:17:465
17680991613,3cyclictest8924-1kworker/u17:009:37:415
17680991610,0cyclictest0-21swapper/512:08:405
17679991616,0cyclictest69450irq/124-eth011:07:194
17679991616,0cyclictest0-21swapper/410:30:294
17679991615,1cyclictest8094-21ssh10:03:574
17679991615,1cyclictest7424-21ssh10:19:284
17679991615,1cyclictest69450irq/124-eth011:50:114
17679991615,1cyclictest1231-21ssh12:06:194
17679991614,1cyclictest630-21avahi-daemon10:48:234
17679991610,6cyclictest0-21swapper/409:10:094
17679991610,6cyclictest0-21swapper/409:10:084
17679991610,0cyclictest0-21swapper/412:30:244
17679991610,0cyclictest0-21swapper/408:10:104
17678991610,5cyclictest0-21swapper/311:11:093
17678991610,4cyclictest0-21swapper/307:14:323
17678991610,0cyclictest0-21swapper/312:13:233
17678991610,0cyclictest0-21swapper/311:41:593
17678991610,0cyclictest0-21swapper/311:21:323
17677991614,1cyclictest16750irq/126-ahci[0012:10:292
17677991610,6cyclictest0-21swapper/210:31:252
17676991614,2cyclictest2615-21kworker/u16:209:58:401
17676991610,1cyclictest0-21swapper/108:15:111
17676991610,1cyclictest0-21swapper/108:15:111
17676991610,0cyclictest0-21swapper/112:08:471
17675991616,0cyclictest0-21swapper/010:10:150
17675991611,1cyclictest662-21ptp4l12:26:060
17675991610,6cyclictest0-21swapper/012:20:040
3202121510,4sleep20-21swapper/209:12:102
3202121510,4sleep20-21swapper/209:12:102
2593621510,4sleep20-21swapper/209:56:132
2135021510,4sleep40-21swapper/409:39:104
17682991515,0cyclictest0-21swapper/707:25:127
17682991510,5cyclictest0-21swapper/712:11:537
17682991510,5cyclictest0-21swapper/711:06:017
17682991510,5cyclictest0-21swapper/710:09:097
17682991510,2cyclictest0-21swapper/707:11:467
17682991510,0cyclictest0-21swapper/712:27:437
17682991510,0cyclictest0-21swapper/712:05:177
17682991510,0cyclictest0-21swapper/711:50:307
17682991510,0cyclictest0-21swapper/711:03:277
17682991510,0cyclictest0-21swapper/710:55:217
17682991510,0cyclictest0-21swapper/709:49:517
17682991510,0cyclictest0-21swapper/709:27:037
1768299150,14cyclictest0-21swapper/709:05:127
17681991514,1cyclictest30753-21unixbench_singl10:45:236
17681991510,5cyclictest0-21swapper/612:18:436
17681991510,5cyclictest0-21swapper/609:54:516
17681991510,4cyclictest0-21swapper/607:15:106
17681991510,3cyclictest0-21swapper/607:12:326
1768199150,14cyclictest0-21swapper/609:05:196
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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