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2025-04-02 - 08:24
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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 rack0slot4.osadl.org (updated Wed Apr 02, 2025 00:47:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21829742354309,14sleep80-21swapper/819:04:1714
21832032351307,15sleep10-21swapper/119:07:091
21829752347323,14sleep90-21swapper/919:04:1815
21829032343320,15sleep130-21swapper/1319:03:165
21829362342319,15sleep120-21swapper/1219:03:494
21829982341317,15sleep150-21swapper/1519:04:407
21829802341318,15sleep140-21swapper/1419:04:246
21832152340315,16sleep70-21swapper/719:07:1413
21830482340316,16sleep40-21swapper/419:05:1710
21829882339316,15sleep50-21swapper/519:04:3011
21829412339316,15sleep00-21swapper/019:03:520
21830542338315,16sleep100-21swapper/1019:05:242
21831852336311,16sleep20-21swapper/219:06:538
21830322336311,16sleep110-21swapper/1119:05:083
21832302335312,15sleep30-21swapper/319:07:269
21829302335312,15sleep60-21swapper/619:03:4312
218361999225224,1cyclictest2402616-21nodev-device-ev23:59:5710
218364199220220,0cyclictest0-21swapper/1123:29:383
218361599220218,1cyclictest2380215-21nodev-device-ev23:29:389
2183615992130,212cyclictest2305572-21daemon-init21:38:539
218361299207205,1cyclictest2305604-21nodev-device-ev21:38:548
218364499148148,0cyclictest0-21swapper/1223:59:584
218363999108108,0cyclictest0-21swapper/1021:38:542
2183624999291,1cyclictest2239506-21nodev-device-ev20:13:1812
2183634998685,1cyclictest0-21swapper/920:08:1115
2183609998685,1cyclictest2235220-21nodev-device-ev20:08:121
2183609997978,1cyclictest0-21swapper/122:19:121
2183634997877,1cyclictest2333340-21nodev-device-ev22:19:1315
2183624997776,1cyclictest0-21swapper/623:39:4612
2183651997675,1cyclictest0-21swapper/1420:13:186
2183639997271,1cyclictest2221350-21nodev-device-ev19:48:122
2183622996968,1cyclictest0-21swapper/521:33:5311
2183619996968,1cyclictest2315213-21nodev-device-ev21:54:0310
2183634996261,1cyclictest0-21swapper/921:13:4315
2183619996261,1cyclictest0-21swapper/422:14:1010
2183609996261,1cyclictest2287496-21nodev-device-ev21:13:431
2183654996160,1cyclictest2274679-21nodev-device-ev20:58:377
2183651996059,1cyclictest2388753-21nodev-device-ev23:39:466
2183622995958,1cyclictest0-21swapper/520:18:1911
2183631995855,3cyclictest0-21swapper/822:59:3014
2183619995756,1cyclictest0-21swapper/419:58:1110
2183644995352,1cyclictest0-21swapper/1219:17:524
2183641995352,1cyclictest0-21swapper/1122:54:283
2183619995251,1cyclictest0-21swapper/400:09:5710
2183615995150,1cyclictest2356775-21nodev-device-ev22:54:289
2183629995049,1cyclictest0-21swapper/720:43:3013
2183649994645,1cyclictest2186123-21nodev-device-ev19:07:485
2183609994645,1cyclictest0-21swapper/119:12:311
2183634994544,1cyclictest2188620-21nodev-device-ev19:12:3015
2183605994239,3cyclictest2361050-21nodev-device-ev22:59:300
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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