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2026-03-14 - 08:57
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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 rack0slot5.osadl.org (updated Sat Mar 14, 2026 00:43:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
111630499702307,394cyclictest0-21swapper/723:45:5413
11163349952310,513cyclictest0-21swapper/1422:02:546
111629699501501,0cyclictest0-21swapper/521:59:5411
11162799950014,44cyclictest0-21swapper/000:15:320
11162799949821,476cyclictest0-21swapper/022:04:540
1116337994862,483cyclictest0-21swapper/1520:05:547
11162799947722,454cyclictest0-21swapper/022:02:540
11162859947525,30cyclictest0-21swapper/200:17:378
11163209947119,29cyclictest0-21swapper/1100:24:173
111627999468468,0cyclictest0-21swapper/021:47:540
111627999468468,0cyclictest0-21swapper/021:47:540
11163159946612,58cyclictest0-21swapper/1021:57:542
11163159946612,58cyclictest0-21swapper/1021:57:542
111632799462461,1cyclictest0-21swapper/1220:17:544
111630199462462,0cyclictest1241778-21kworker/6:2+i915-unordered22:02:5412
11162799946122,438cyclictest0-21swapper/022:34:540
11162799946121,438cyclictest0-21swapper/021:24:540
111632799459457,2cyclictest1131323-21kworker/12:1+i915-unordered19:41:544
1116320994563,59cyclictest0-21swapper/1123:51:353
11162799945617,438cyclictest0-21swapper/020:37:540
11162799945530,27cyclictest0-21swapper/023:02:180
11162799945427,29cyclictest0-21swapper/019:36:400
11162799945426,30cyclictest0-21swapper/020:41:390
11163019945310,28cyclictest0-21swapper/622:55:5412
11162859945224,30cyclictest0-21swapper/222:34:328
11162859945224,30cyclictest0-21swapper/221:06:388
11162799945010,439cyclictest0-21swapper/020:05:540
11162859944925,29cyclictest0-21swapper/222:24:548
11162859944719,30cyclictest0-21swapper/220:42:168
11162799944722,28cyclictest0-21swapper/021:03:390
11162859944524,420cyclictest0-21swapper/200:07:388
1116279994454,440cyclictest0-21swapper/019:41:540
11162859944417,29cyclictest0-21swapper/223:19:188
11162799944418,30cyclictest0-21swapper/020:00:390
111629099442440,1cyclictest1237503-21kworker/3:2+i915-unordered21:47:549
111629099442440,1cyclictest1237503-21kworker/3:2+i915-unordered21:47:549
111632799441438,3cyclictest0-21swapper/1200:15:324
11163209944024,29cyclictest0-21swapper/1120:57:543
11163129944026,413cyclictest0-21swapper/900:28:1715
1116312994400,439cyclictest0-21swapper/922:39:4015
1116312994400,439cyclictest0-21swapper/922:26:4015
1116312994390,438cyclictest0-21swapper/920:20:1615
111630999439438,1cyclictest69750irq/159-i91522:39:5414
111629499438437,1cyclictest1375627-21kworker/4:1+i915-unordered00:15:3210
11163349943721,414cyclictest0-21swapper/1423:59:546
11163049943710,29cyclictest0-21swapper/723:51:5413
1116296994358,29cyclictest0-21swapper/500:13:1611
111629499435432,2cyclictest1289085-21kworker/4:1+events22:27:3810
1116304994346,424cyclictest0-21swapper/722:58:5013
11162969943418,416cyclictest0-21swapper/521:37:5411
11163019943316,416cyclictest0-21swapper/600:30:5412
1116285994326,29cyclictest0-21swapper/220:29:188
1116301994319,30cyclictest0-21swapper/619:32:1212
111630199431430,1cyclictest0-21swapper/622:34:5412
111629499431430,1cyclictest1177038-21kworker/4:2+i915-unordered20:17:5410
11163349943010,419cyclictest0-21swapper/1420:04:396
111632799428428,0cyclictest0-21swapper/1221:34:184
1116334994270,30cyclictest0-21swapper/1421:25:546
111630499427426,1cyclictest1159781-21kworker/7:2+i915-unordered20:05:5413
1116334994260,29cyclictest0-21swapper/1421:44:546
1116334994260,29cyclictest0-21swapper/1421:44:546
1116294994262,29cyclictest0-21swapper/419:16:5410
1116285994260,30cyclictest0-21swapper/220:52:178
1116334994250,0cyclictest0-21swapper/1422:13:156
11162969942426,397cyclictest0-21swapper/519:13:1711
11162859942424,397cyclictest0-21swapper/221:22:218
11162859942422,399cyclictest0-21swapper/221:56:178
11162859942422,399cyclictest0-21swapper/221:56:178
11163349942326,395cyclictest0-21swapper/1421:31:546
11163349942326,394cyclictest0-21swapper/1420:51:546
111632799423420,2cyclictest1269935-21kworker/12:2+pm22:25:274
111631299423421,1cyclictest1261488-21kworker/9:1+i915-unordered22:11:1715
11162969942325,398cyclictest0-21swapper/522:18:3811
11162859942325,397cyclictest0-21swapper/220:12:408
11162859942325,396cyclictest0-21swapper/223:31:258
11162859942325,396cyclictest0-21swapper/219:50:408
11162859942324,397cyclictest0-21swapper/223:25:378
11162859942324,397cyclictest0-21swapper/200:27:388
11162859942323,399cyclictest0-21swapper/221:53:298
11162859942323,399cyclictest0-21swapper/221:53:298
11162799942326,395cyclictest0-21swapper/023:39:380
111633799422421,1cyclictest0-21swapper/1522:19:357
1116337994221,420cyclictest0-21swapper/1521:34:187
11162859942225,396cyclictest0-21swapper/219:14:388
11162859942224,396cyclictest0-21swapper/219:10:388
11162859942224,395cyclictest0-21swapper/221:28:408
11162859942223,397cyclictest0-21swapper/221:32:418
11162859942222,400cyclictest0-21swapper/220:16:418
1116279994220,28cyclictest0-21swapper/021:32:540
11162859942124,396cyclictest0-21swapper/221:18:408
11162859942124,395cyclictest0-21swapper/220:23:468
11162859942123,397cyclictest0-21swapper/219:46:408
11162859942123,397cyclictest0-21swapper/200:03:388
11162859942123,396cyclictest0-21swapper/220:08:418
11162859942122,397cyclictest0-21swapper/223:12:408
11162859942121,399cyclictest0-21swapper/222:39:408
11162799942123,0cyclictest0-21swapper/021:58:410
11162799942123,0cyclictest0-21swapper/021:58:410
11163349942026,394cyclictest0-21swapper/1421:34:546
11162859942023,397cyclictest0-21swapper/221:10:488
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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