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2026-06-24 - 21:31
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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 Wed Jun 24, 2026 12:49:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3273913060,298ptp4l0-21swapper/107:06:411
3273913060,298ptp4l0-21swapper/107:06:411
191019917853,77cyclictest0-21swapper/607:10:0128
191019917853,77cyclictest0-21swapper/607:10:0128
330891172163,6phc2sys0-21swapper/207:05:2212
330891172163,6phc2sys0-21swapper/207:05:2112
191939916946,122cyclictest0-21swapper/2309:30:1816
164372164154,7sleep290-21swapper/2907:05:2022
164372164154,7sleep290-21swapper/2907:05:2022
191939916340,99cyclictest0-21swapper/2311:20:2416
191939916340,99cyclictest0-21swapper/2311:20:2416
19215991602,156cyclictest151rcu_preempt12:00:0120
19215991602,156cyclictest151rcu_preempt12:00:0120
19092991574,152cyclictest0-21swapper/409:15:2326
19092991544,129cyclictest0-21swapper/411:25:1426
19092991544,129cyclictest0-21swapper/411:25:1426
19092991503,88cyclictest0-21swapper/410:45:2426
19215991480,89cyclictest0-21swapper/2707:25:2020
19092991473,100cyclictest0-21swapper/409:34:3526
191889914655,47cyclictest0-21swapper/2211:05:5615
192159914452,59cyclictest0-21swapper/2711:50:2420
192159914452,59cyclictest0-21swapper/2711:50:2420
19092991443,104cyclictest0-21swapper/411:52:1126
19092991443,104cyclictest0-21swapper/411:52:1126
19215991420,84cyclictest0-21swapper/2710:15:4720
19215991420,82cyclictest0-21swapper/2708:57:4520
192159914121,81cyclictest0-21swapper/2711:40:1520
192159914121,81cyclictest0-21swapper/2711:40:1420
191089914128,65cyclictest0-21swapper/809:40:0130
192159914046,60cyclictest0-21swapper/2712:05:2220
192159914046,60cyclictest0-21swapper/2712:05:2120
19215991390,83cyclictest0-21swapper/2710:50:0020
19140991390,86cyclictest0-21swapper/1512:13:437
19140991390,86cyclictest0-21swapper/1512:13:427
192379913826,82cyclictest0-21swapper/3010:15:5124
19215991380,83cyclictest0-21swapper/2710:37:4320
19215991370,77cyclictest0-21swapper/2707:46:4120
19188991370,85cyclictest0-21swapper/2211:00:2315
19117991370,81cyclictest0-21swapper/1007:26:072
191089913727,62cyclictest0-21swapper/809:30:2330
190929913737,21cyclictest40-21ksoftirqd/412:32:3426
190929913737,21cyclictest40-21ksoftirqd/412:32:3426
19092991363,76cyclictest0-21swapper/410:57:5526
19188991350,83cyclictest0-21swapper/2209:42:0215
191089913547,61cyclictest0-21swapper/810:17:2730
19215991341,79cyclictest0-21swapper/2711:24:1320
19215991341,79cyclictest0-21swapper/2711:24:1220
19215991340,81cyclictest0-21swapper/2708:10:1320
19108991345,75cyclictest0-21swapper/812:20:0430
19108991345,75cyclictest0-21swapper/812:20:0430
191089913452,60cyclictest0-21swapper/808:10:1430
191089913448,59cyclictest0-21swapper/811:40:1830
191089913448,59cyclictest0-21swapper/811:40:1730
191089913427,60cyclictest0-21swapper/812:30:3030
191089913427,60cyclictest0-21swapper/812:30:2930
19092991344,119cyclictest0-21swapper/407:10:2126
192159913352,62cyclictest0-21swapper/2709:33:3520
192159913343,64cyclictest0-21swapper/2709:26:3720
192159913312,78cyclictest0-21swapper/2707:44:3420
19215991330,79cyclictest0-21swapper/2712:11:4720
19215991330,79cyclictest0-21swapper/2712:11:4620
191089913327,71cyclictest0-21swapper/810:10:2730
19092991333,80cyclictest0-21swapper/410:21:5026
19215991320,79cyclictest0-21swapper/2708:20:2120
191089913228,75cyclictest0-21swapper/811:08:4430
191089913226,70cyclictest0-21swapper/811:45:0230
191089913226,70cyclictest0-21swapper/811:45:0130
191089913226,70cyclictest0-21swapper/810:30:1430
191089913226,62cyclictest0-21swapper/808:15:0230
191089913218,83cyclictest0-21swapper/807:12:3730
192159913127,66cyclictest0-21swapper/2710:00:4920
19215991310,78cyclictest0-21swapper/2709:20:1220
19117991314,78cyclictest0-21swapper/1007:45:532
191089913153,62cyclictest0-21swapper/808:44:3430
191089913141,59cyclictest0-21swapper/808:45:1730
191089913130,66cyclictest0-21swapper/807:17:5130
191089913128,71cyclictest0-21swapper/811:58:5530
191089913128,71cyclictest0-21swapper/811:58:5430
191089913128,69cyclictest0-21swapper/810:00:2030
191089913127,74cyclictest0-21swapper/810:08:4930
191089913125,58cyclictest0-21swapper/811:51:2830
191089913125,58cyclictest0-21swapper/811:51:2830
192379913046,54cyclictest0-21swapper/3010:48:2624
192159913029,66cyclictest0-21swapper/2709:49:2620
19215991300,76cyclictest0-21swapper/2708:25:2720
191089913025,63cyclictest0-21swapper/807:26:5730
191089912933,80cyclictest0-21swapper/812:09:0730
191089912933,80cyclictest0-21swapper/812:09:0630
191089912930,73cyclictest0-21swapper/810:48:5630
191089912930,72cyclictest0-21swapper/811:11:3830
191089912926,65cyclictest6450-21entropy12:25:1330
191089912926,65cyclictest6450-21entropy12:25:1230
191089912926,60cyclictest0-21swapper/812:11:4830
191089912926,60cyclictest0-21swapper/812:11:4830
192159912827,60cyclictest0-21swapper/2707:55:1520
191179912850,57cyclictest0-21swapper/1007:10:042
191089912829,71cyclictest0-21swapper/812:04:5130
191089912829,71cyclictest0-21swapper/812:04:5030
192229912732,66cyclictest0-21swapper/2810:45:0021
19215991270,78cyclictest0-21swapper/2711:39:4220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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