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2025-12-06 - 17:14
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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 Sat Dec 06, 2025 12:49:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2482912310,223ptp4l0-21swapper/107:07:011
2482912310,223ptp4l0-21swapper/107:07:011
30893991530,105cyclictest10341-21missed_timers09:45:1916
308939914433,108cyclictest28918-21switchtime07:30:2416
30880991436,116cyclictest151rcu_preempt11:26:0714
30880991436,116cyclictest151rcu_preempt11:26:0614
308029914253,55cyclictest0-21swapper/912:10:1631
308029914253,55cyclictest0-21swapper/912:10:1531
308939914053,65cyclictest0-21swapper/2309:52:5016
308029914053,58cyclictest0-21swapper/910:15:3431
308029914052,59cyclictest0-21swapper/907:15:3031
308029914052,59cyclictest0-21swapper/907:15:3031
309469913952,55cyclictest0-21swapper/3109:39:3625
308029913948,58cyclictest0-21swapper/912:15:1731
308029913948,58cyclictest0-21swapper/912:15:1731
308029913931,68cyclictest0-21swapper/911:03:4031
308029913928,67cyclictest0-21swapper/910:40:4131
30946991380,81cyclictest0-21swapper/3109:28:3925
308029913847,58cyclictest0-21swapper/909:20:0631
308029913842,59cyclictest0-21swapper/912:36:0831
308029913831,69cyclictest0-21swapper/911:19:4231
308029913829,66cyclictest0-21swapper/910:56:5931
30946991370,78cyclictest0-21swapper/3110:11:0625
308939913747,61cyclictest0-21swapper/2311:43:5916
308939913747,61cyclictest0-21swapper/2311:43:5916
308029913756,66cyclictest0-21swapper/909:05:0131
308029913751,65cyclictest0-21swapper/911:27:4331
308029913751,65cyclictest0-21swapper/911:27:4331
308029913731,73cyclictest0-21swapper/912:25:1631
308029913731,73cyclictest0-21swapper/912:25:1531
308029913730,66cyclictest0-21swapper/911:46:2531
308029913730,66cyclictest0-21swapper/911:46:2531
308029913730,65cyclictest0-21swapper/907:55:4131
308029913729,69cyclictest0-21swapper/910:13:2731
309469913627,71cyclictest0-21swapper/3110:38:2425
30946991360,79cyclictest0-21swapper/3109:00:3525
308029913658,57cyclictest0-21swapper/909:52:3531
30946991350,78cyclictest0-21swapper/3111:48:2425
30946991350,78cyclictest0-21swapper/3111:48:2425
308029913559,67cyclictest0-21swapper/910:38:3331
308029913528,68cyclictest0-21swapper/907:30:2731
309469913442,66cyclictest0-21swapper/3110:19:4125
309469913430,65cyclictest0-21swapper/3108:14:0625
30946991340,83cyclictest0-21swapper/3109:13:2425
30946991340,79cyclictest0-21swapper/3111:51:0225
30946991340,79cyclictest0-21swapper/3111:51:0225
30946991340,79cyclictest0-21swapper/3108:30:0825
30946991340,79cyclictest0-21swapper/3108:00:1225
308939913428,69cyclictest0-21swapper/2309:03:3916
308029913448,64cyclictest0-21swapper/910:10:0031
308029913446,60cyclictest0-21swapper/910:24:5531
308029913430,63cyclictest0-21swapper/912:03:0031
308029913430,63cyclictest0-21swapper/912:02:5931
308029913429,69cyclictest0-21swapper/908:30:1831
30946991330,75cyclictest0-21swapper/3111:05:3825
308939913328,70cyclictest0-21swapper/2308:34:1616
308029913351,63cyclictest0-21swapper/909:42:3331
308029913332,71cyclictest0-21swapper/911:30:5531
308029913331,70cyclictest0-21swapper/911:41:3831
308029913331,70cyclictest0-21swapper/911:41:3731
308029913331,69cyclictest0-21swapper/909:38:0931
308029913330,66cyclictest0-21swapper/907:20:1831
308029913330,66cyclictest0-21swapper/907:20:1831
308029913329,66cyclictest0-21swapper/909:10:5431
309469913227,63cyclictest0-21swapper/3107:45:1525
30946991320,81cyclictest0-21swapper/3111:32:2225
30946991320,79cyclictest0-21swapper/3110:23:2525
30946991320,77cyclictest0-21swapper/3110:08:5925
308939913231,68cyclictest0-21swapper/2311:50:2516
308939913231,68cyclictest0-21swapper/2311:50:2416
308029913231,68cyclictest0-21swapper/912:05:4131
308029913231,68cyclictest0-21swapper/912:05:4031
308029913229,68cyclictest0-21swapper/909:31:4531
308029913229,67cyclictest0-21swapper/907:10:0931
308029913229,67cyclictest0-21swapper/907:10:0931
308029913229,62cyclictest0-21swapper/910:30:1631
308029913228,65cyclictest0-21swapper/909:45:3831
308029913227,65cyclictest0-21swapper/909:15:4431
309469913131,71cyclictest0-21swapper/3109:22:2925
309469913130,70cyclictest0-21swapper/3111:13:3925
309469913130,70cyclictest0-21swapper/3111:13:3925
309469913129,64cyclictest0-21swapper/3107:22:1625
309469913129,64cyclictest0-21swapper/3107:22:1625
30946991310,78cyclictest0-21swapper/3110:00:2425
30946991310,78cyclictest0-21swapper/3108:52:5125
30946991310,76cyclictest0-21swapper/3109:05:2325
308939913129,67cyclictest0-21swapper/2307:40:3416
308939913127,67cyclictest0-21swapper/2312:17:0716
308939913127,67cyclictest0-21swapper/2312:17:0716
3088899131130,1cyclictest151rcu_preempt09:12:1215
308029913131,67cyclictest0-21swapper/911:37:2031
308029913131,67cyclictest0-21swapper/911:37:2031
308029913130,63cyclictest0-21swapper/912:25:0131
309469913049,62cyclictest0-21swapper/3109:49:1225
309469913030,70cyclictest0-21swapper/3109:18:1325
309469913030,69cyclictest0-21swapper/3111:00:1825
309469913030,63cyclictest0-21swapper/3112:14:3525
309469913030,63cyclictest0-21swapper/3112:14:3525
309469913026,62cyclictest0-21swapper/3108:55:1425
30946991300,78cyclictest0-21swapper/3109:55:0425
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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