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2024-07-16 - 08:33
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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 rack0slot8.osadl.org (updated Mon Jul 15, 2024 12:46:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
182333199462459,2cyclictest821irq_work/607:19:0712
182333199462459,2cyclictest821irq_work/607:19:0712
182333499460456,2cyclictest0-21swapper/807:19:0714
182333499460456,2cyclictest0-21swapper/807:19:0714
182332599426421,4cyclictest0-21swapper/007:19:070
182332599426421,4cyclictest0-21swapper/007:19:060
182334199332330,0cyclictest0-21swapper/1507:19:077
182334199332330,0cyclictest0-21swapper/1507:19:077
182332899332328,2cyclictest0-21swapper/307:19:079
182332899332328,2cyclictest0-21swapper/307:19:079
182332799213209,1cyclictest2537944-21gnome-shell07:37:078
18233259920514,68cyclictest19594741kworker/u64:1+i915@
__i915_gem_free_work
19:13:580
182332599202195,6cyclictest0-21swapper/007:37:070
18233259920112,66cyclictest18857191kworker/u64:3+i915@
__i915_gem_free_work
10:36:590
182332899193191,1cyclictest0-21swapper/307:25:029
182332899193191,1cyclictest0-21swapper/307:25:019
1823329991910,69cyclictest0-21swapper/407:51:2210
1823338991890,66cyclictest0-21swapper/1212:05:274
18233319918356,0cyclictest0-21swapper/607:45:2212
182333899158154,3cyclictest11490-21Renderer07:21:094
182333899158154,3cyclictest11490-21Renderer07:21:094
18233259914919,1cyclictest0-21swapper/008:05:190
18233259914819,0cyclictest0-21swapper/007:45:220
182333799143140,2cyclictest1351rcuc/1107:21:093
182333799143140,2cyclictest1351rcuc/1107:21:093
1823340991360,0cyclictest0-21swapper/1407:15:066
1823340991360,0cyclictest0-21swapper/1407:15:056
1823336991350,0cyclictest0-21swapper/1007:15:062
1823336991350,0cyclictest0-21swapper/1007:15:062
1823329991340,1cyclictest0-21swapper/407:15:0610
1823329991340,1cyclictest0-21swapper/407:15:0510
1823331991330,1cyclictest0-21swapper/608:38:0012
1823340991320,1cyclictest0-21swapper/1408:38:006
1823329991310,0cyclictest0-21swapper/408:38:0010
1823327991310,0cyclictest0-21swapper/208:38:008
1823327991310,0cyclictest0-21swapper/207:15:068
1823327991310,0cyclictest0-21swapper/207:15:068
1823336991300,1cyclictest0-21swapper/1008:38:002
1823334991300,0cyclictest0-21swapper/808:38:0014
1823340991290,1cyclictest0-21swapper/1407:45:226
1823326991290,1cyclictest0-21swapper/112:05:271
1823340991280,1cyclictest0-21swapper/1412:30:556
1823337991280,1cyclictest0-21swapper/1112:05:273
1823335991280,1cyclictest0-21swapper/912:05:2715
1823329991280,1cyclictest0-21swapper/412:30:5510
1823327991280,1cyclictest0-21swapper/212:30:558
1823327991280,1cyclictest0-21swapper/207:45:228
1823340991270,1cyclictest0-21swapper/1407:56:346
1823336991270,1cyclictest0-21swapper/1012:30:552
1823336991270,1cyclictest0-21swapper/1007:45:222
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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