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2026-06-03 - 10:19
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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 03, 2026 00:49:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
11459927678,1cyclictest151rcu_preempt23:20:220
11459927578,1cyclictest151rcu_preempt21:55:200
3273912120,205ptp4l0-21swapper/119:08:371
3273912120,205ptp4l0-21swapper/119:08:371
330891179172,6phc2sys0-21swapper/219:09:4712
330891179172,6phc2sys0-21swapper/219:09:4712
12469915037,106cyclictest0-21swapper/2021:50:2213
12469914833,114cyclictest0-21swapper/2021:39:5613
11969914650,82cyclictest751rcuc/1000:15:172
11969914650,82cyclictest751rcuc/1000:15:172
1232991440,86cyclictest0-21swapper/1823:47:0310
1196991440,89cyclictest0-21swapper/1023:53:522
1196991440,89cyclictest0-21swapper/1023:53:512
1196991440,87cyclictest0-21swapper/1023:42:392
12149914345,64cyclictest0-21swapper/1400:22:486
12149914345,64cyclictest0-21swapper/1400:22:486
12469914126,72cyclictest0-21swapper/2022:20:2613
12469914126,114cyclictest0-21swapper/2000:20:0913
12469914126,114cyclictest0-21swapper/2000:20:0913
12739914050,58cyclictest0-21swapper/2523:35:1618
11969914052,57cyclictest0-21swapper/1022:19:162
1196991400,83cyclictest0-21swapper/1019:20:152
12149913929,66cyclictest0-21swapper/1423:27:136
12739913854,56cyclictest0-21swapper/2523:01:4418
12149913848,55cyclictest0-21swapper/1420:43:406
11969913827,69cyclictest0-21swapper/1022:24:372
12739913737,63cyclictest0-21swapper/2500:18:5818
12739913737,63cyclictest0-21swapper/2500:18:5818
1196991370,83cyclictest0-21swapper/1023:29:172
12739913631,72cyclictest0-21swapper/2521:40:1718
12149913633,68cyclictest0-21swapper/1419:14:256
1196991360,85cyclictest0-21swapper/1020:35:242
1150991364,131cyclictest0-21swapper/123:27:011
1150991364,131cyclictest0-21swapper/123:17:401
1150991364,124cyclictest0-21swapper/100:30:041
1150991364,124cyclictest0-21swapper/100:30:041
1150991363,132cyclictest0-21swapper/123:35:021
12739913551,61cyclictest0-21swapper/2519:15:0918
12739913530,70cyclictest0-21swapper/2519:50:2518
12329913552,63cyclictest0-21swapper/1821:28:0410
12149913528,65cyclictest0-21swapper/1400:28:086
12149913528,65cyclictest0-21swapper/1400:28:086
11969913533,66cyclictest0-21swapper/1023:37:502
1196991350,81cyclictest0-21swapper/1022:33:102
1196991350,78cyclictest0-21swapper/1000:35:012
1150991354,126cyclictest0-21swapper/123:45:101
1150991354,114cyclictest0-21swapper/122:45:181
1150991354,101cyclictest0-21swapper/122:31:431
1304991340,85cyclictest0-21swapper/2919:10:1222
12739913439,71cyclictest0-21swapper/2523:09:1318
12739913431,75cyclictest0-21swapper/2500:34:1218
12739913431,75cyclictest0-21swapper/2500:34:1218
12739913430,84cyclictest0-21swapper/2519:55:1418
12739913429,74cyclictest0-21swapper/2500:29:5618
12739913429,74cyclictest0-21swapper/2500:29:5618
12739913429,71cyclictest0-21swapper/2523:25:0018
12739913428,72cyclictest0-21swapper/2521:33:3318
12739913426,71cyclictest0-21swapper/2522:45:1018
12739913426,63cyclictest0-21swapper/2519:27:2718
12149913431,59cyclictest0-21swapper/1420:15:536
12149913430,69cyclictest0-21swapper/1423:24:326
12149913430,61cyclictest0-21swapper/1419:55:356
12149913429,69cyclictest0-21swapper/1422:35:226
12149913428,64cyclictest0-21swapper/1400:07:186
12149913428,64cyclictest0-21swapper/1400:07:186
12149913428,62cyclictest0-21swapper/1419:50:146
1196991340,80cyclictest0-21swapper/1020:59:382
1196991340,78cyclictest0-21swapper/1022:00:332
1150991344,98cyclictest0-21swapper/121:29:101
1150991344,97cyclictest0-21swapper/122:36:331
1150991344,106cyclictest0-21swapper/100:02:341
1150991344,106cyclictest0-21swapper/100:02:331
1150991344,103cyclictest0-21swapper/119:36:231
1150991344,102cyclictest0-21swapper/121:56:041
1150991343,91cyclictest0-21swapper/121:50:301
12739913331,74cyclictest0-21swapper/2521:58:2718
12739913331,73cyclictest0-21swapper/2521:49:3518
12739913328,69cyclictest0-21swapper/2521:25:3218
12329913326,67cyclictest0-21swapper/1819:58:2610
12149913359,62cyclictest0-21swapper/1422:15:376
12149913330,63cyclictest0-21swapper/1400:11:016
12149913330,63cyclictest0-21swapper/1400:11:016
12149913328,64cyclictest0-21swapper/1419:22:276
1150991334,105cyclictest0-21swapper/120:45:241
1150991333,112cyclictest0-21swapper/123:22:301
12329913226,66cyclictest0-21swapper/1822:11:2310
12329913226,64cyclictest0-21swapper/1821:58:3310
12149913257,67cyclictest0-21swapper/1421:51:006
12149913228,60cyclictest0-21swapper/1423:51:166
12149913228,60cyclictest0-21swapper/1423:51:166
11969913240,62cyclictest0-21swapper/1019:40:012
1196991320,77cyclictest0-21swapper/1022:05:222
12739913147,54cyclictest0-21swapper/2519:40:1618
12739913128,69cyclictest0-21swapper/2523:13:3018
12739913127,70cyclictest0-21swapper/2520:30:3018
12739913127,70cyclictest0-21swapper/2500:07:2918
12739913127,70cyclictest0-21swapper/2500:07:2918
12739913127,69cyclictest0-21swapper/2523:56:1518
12739913127,69cyclictest0-21swapper/2523:56:1518
12739913127,68cyclictest0-21swapper/2522:32:5318
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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