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2024-07-27 - 03:23
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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 Fri Jul 26, 2024 12:45:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2888859915716,140cyclictest0-21swapper/1509:30:027
288869991200,119cyclictest0-21swapper/009:30:020
288878991160,1cyclictest0-21swapper/809:30:0314
288874991160,1cyclictest0-21swapper/409:30:0210
288883991150,0cyclictest0-21swapper/1309:30:035
288870991140,0cyclictest0-21swapper/109:30:021
28888199103101,2cyclictest3547244-21chrome11:00:193
288877999817,0cyclictest0-21swapper/708:30:2313
288877999817,0cyclictest0-21swapper/708:30:2313
288881999514,1cyclictest364367-21ntpq08:30:233
288881999514,1cyclictest364367-21ntpq08:30:233
288885999212,0cyclictest0-21swapper/1508:30:227
288885999212,0cyclictest0-21swapper/1508:30:227
288869998784,3cyclictest261irq_work/009:01:580
288878998584,1cyclictest1041rcuc/809:01:5914
288873998417,1cyclictest400229-21kworker/3:1+i915-unordered@
__intel_wakeref_put_work
06:08:339
28887999830,1cyclictest0-21swapper/909:30:0215
288877998381,2cyclictest5024-21Xorg09:30:0213
288881998178,2cyclictest2537944-21gnome-shell09:30:023
288884997260,4cyclictest0-21swapper/1409:43:236
288884996665,0cyclictest0-21swapper/1409:01:596
288872996664,1cyclictest431rcuc/211:27:588
288875996444,16cyclictest1078223-21Compositor09:29:1211
288874996361,1cyclictest5024-21Xorg09:01:5810
288870996339,11cyclictest11384-21thunderbird12:38:031
288885996159,1cyclictest0-21swapper/1511:50:357
28887999619,39cyclictest11384-21thunderbird09:36:2615
288877996156,3cyclictest392454-21neo4j.VmPauseMo09:29:4813
28886999573,49cyclictest2538065-21WRScene~der#19509:29:520
288883995245,2cyclictest0-21swapper/1309:37:545
288878995127,12cyclictest11384-21thunderbird10:25:2914
28887899493,40cyclictest11384-21thunderbird09:29:3914
28888299482,10cyclictest2538070-21WRScene~lder#3309:32:534
28888099480,20cyclictest0-21swapper/1009:37:192
288874994836,11cyclictest0-21swapper/409:35:2310
288884994743,1cyclictest0-21swapper/1409:30:036
28886999472,35cyclictest0-21swapper/009:35:230
288881994643,3cyclictest5024-21Xorg09:36:453
28886999460,1cyclictest0-21swapper/009:23:320
288876994520,3cyclictest1078160-21IPDL23:32:3612
288883994440,2cyclictest5024-21Xorg12:21:515
28888099430,42cyclictest0-21swapper/1009:33:372
288875994310,18cyclictest0-21swapper/509:43:1311
288884994242,0cyclictest0-21swapper/1409:23:546
288884994235,3cyclictest0-21swapper/1409:36:266
288874994240,1cyclictest11384-21thunderbird09:23:5410
288873994237,5cyclictest0-21swapper/309:35:239
288870994237,2cyclictest2537944-21gnome-shell09:27:401
288884994127,3cyclictest0-21swapper/1409:29:166
28887299412,15cyclictest2538065-21WRScene~der#19509:29:488
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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