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2026-03-12 - 21:59
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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 rackcslot8.osadl.org (updated Thu Mar 12, 2026 12:48:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3273913270,319ptp4l0-21swapper/107:07:571
1759399322143,1cyclictest151rcu_preempt11:18:0227
177769927880,1cyclictest151rcu_preempt09:36:2225
176889923635,1cyclictest151rcu_preempt12:05:4810
177209916728,83cyclictest0-21swapper/2311:12:5816
156142150140,7sleep290-21swapper/2907:05:2422
17720991480,86cyclictest0-21swapper/2308:50:1616
175779914215,85cyclictest0-21swapper/310:48:3523
175779914215,85cyclictest0-21swapper/310:48:3523
177719914126,69cyclictest0-21swapper/3010:11:3824
177719914126,69cyclictest0-21swapper/3010:11:3824
177569914132,71cyclictest0-21swapper/2810:50:2521
177569914132,71cyclictest0-21swapper/2810:50:2521
177209914045,58cyclictest0-21swapper/2311:16:1116
175599913942,61cyclictest0-21swapper/012:02:540
177209913825,67cyclictest0-21swapper/2308:39:3516
177719913729,63cyclictest0-21swapper/3007:45:1124
177569913649,59cyclictest0-21swapper/2807:35:3521
1773699136134,1cyclictest151rcu_preempt11:55:1418
1773699136134,1cyclictest151rcu_preempt10:00:1918
175599913628,66cyclictest0-21swapper/011:55:060
175599913628,64cyclictest0-21swapper/011:51:400
177719913537,60cyclictest0-21swapper/3012:12:5724
177569913561,46cyclictest0-21swapper/2810:37:0321
177569913561,46cyclictest0-21swapper/2810:37:0321
177569913552,55cyclictest0-21swapper/2811:00:1921
177569913552,55cyclictest0-21swapper/2811:00:1821
177569913549,56cyclictest0-21swapper/2807:30:1621
177569913546,63cyclictest0-21swapper/2809:50:0221
177209913525,64cyclictest0-21swapper/2309:25:3316
177209913518,86cyclictest2941-21latency_hist08:15:0116
175779913515,76cyclictest0-21swapper/311:39:3623
177719913430,73cyclictest0-21swapper/3009:03:1324
177719913430,66cyclictest0-21swapper/3008:33:1824
17771991340,81cyclictest0-21swapper/3011:00:1624
17771991340,81cyclictest0-21swapper/3011:00:1524
177569913423,69cyclictest0-21swapper/2810:13:3321
177569913423,69cyclictest0-21swapper/2810:13:3221
177209913456,65cyclictest0-21swapper/2312:00:1816
177209913445,56cyclictest0-21swapper/2310:40:2216
177209913445,56cyclictest0-21swapper/2310:40:2216
177209913440,61cyclictest0-21swapper/2308:42:3216
177209913428,66cyclictest0-21swapper/2312:34:1316
176569913420,40cyclictest0-21swapper/1312:01:465
17569991347,74cyclictest28-21ksoftirqd/209:23:4912
175639913429,92cyclictest0-21swapper/112:14:041
177719913330,69cyclictest0-21swapper/3010:39:2424
177719913330,69cyclictest0-21swapper/3010:39:2424
177719913328,65cyclictest0-21swapper/3008:57:5224
177719913327,71cyclictest0-21swapper/3012:25:1424
177569913326,70cyclictest0-21swapper/2812:27:5021
177209913349,61cyclictest0-21swapper/2309:57:0516
177719913253,60cyclictest0-21swapper/3009:49:1124
177719913249,69cyclictest0-21swapper/3011:51:3424
177719913244,52cyclictest0-21swapper/3009:36:5324
177719913229,69cyclictest0-21swapper/3008:24:1324
177719913229,68cyclictest0-21swapper/3012:34:3524
177719913227,67cyclictest0-21swapper/3012:08:4124
177569913219,66cyclictest0-21swapper/2811:17:1321
177369913212,119cyclictest0-21swapper/2510:21:4318
177209913258,63cyclictest0-21swapper/2311:00:0816
177209913258,63cyclictest0-21swapper/2311:00:0816
177209913240,58cyclictest0-21swapper/2309:50:4116
177209913226,72cyclictest0-21swapper/2310:31:4916
176569913232,30cyclictest0-21swapper/1310:20:115
175599913232,58cyclictest0-21swapper/009:45:170
177719913153,61cyclictest0-21swapper/3011:25:5624
177719913131,74cyclictest0-21swapper/3009:14:2724
177719913131,69cyclictest0-21swapper/3008:52:3224
177719913130,73cyclictest0-21swapper/3009:50:4724
177719913128,72cyclictest0-21swapper/3007:40:1224
177719913126,65cyclictest0-21swapper/3011:08:4824
177719913126,65cyclictest0-21swapper/3011:08:4824
17771991310,82cyclictest0-21swapper/3007:28:0624
177569913150,54cyclictest0-21swapper/2810:00:0821
177569913146,64cyclictest0-21swapper/2810:09:1521
177569913138,64cyclictest0-21swapper/2811:28:2621
177569913127,69cyclictest0-21swapper/2809:08:3621
177569913125,62cyclictest0-21swapper/2810:20:3721
177209913143,58cyclictest0-21swapper/2309:49:5016
177209913135,67cyclictest0-21swapper/2310:50:0016
177209913135,67cyclictest0-21swapper/2310:50:0016
177209913133,70cyclictest0-21swapper/2308:20:2116
177209913132,66cyclictest0-21swapper/2310:07:1416
177209913130,73cyclictest0-21swapper/2310:04:0216
177209913128,71cyclictest0-21swapper/2309:39:4116
177209913128,67cyclictest0-21swapper/2311:31:4116
176019913120,66cyclictest0-21swapper/611:46:5628
175639913114,100cyclictest151rcu_preempt08:00:281
175599913125,64cyclictest0-21swapper/010:02:220
175599913119,65cyclictest0-21swapper/010:41:380
175599913119,65cyclictest0-21swapper/010:41:370
177719913033,72cyclictest0-21swapper/3012:01:4324
177719913032,75cyclictest0-21swapper/3008:45:2424
177719913031,76cyclictest0-21swapper/3010:10:0024
177719913029,69cyclictest0-21swapper/3009:08:0324
177719913028,69cyclictest0-21swapper/3011:55:5124
177719913028,67cyclictest0-21swapper/3009:20:5124
177719913027,69cyclictest0-21swapper/3009:43:1824
177719913027,68cyclictest0-21swapper/3012:17:1424
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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