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2026-07-11 - 05:10
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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 Jul 11, 2026 00:49:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3273912590,251ptp4l0-21swapper/119:08:461
3273912590,251ptp4l0-21swapper/119:08:461
158829925962,1cyclictest151rcu_preempt23:20:029
159199917522,133cyclictest0-21swapper/2421:45:0317
159199915821,136cyclictest0-21swapper/2423:26:0217
159199915821,136cyclictest0-21swapper/2423:26:0217
159199915821,136cyclictest0-21swapper/2422:57:2517
159199915821,136cyclictest0-21swapper/2422:57:2517
159199915821,136cyclictest0-21swapper/2421:37:1717
159199915821,133cyclictest0-21swapper/2423:36:3017
159199915821,133cyclictest0-21swapper/2423:36:2917
159199915820,137cyclictest0-21swapper/2400:27:1617
159199915721,105cyclictest0-21swapper/2400:35:0417
159199915720,136cyclictest0-21swapper/2422:09:5317
159199915720,122cyclictest0-21swapper/2400:35:0017
159199915720,122cyclictest0-21swapper/2400:34:5917
159199915621,108cyclictest0-21swapper/2423:45:1817
159199915621,108cyclictest0-21swapper/2423:45:1817
159199915621,106cyclictest0-21swapper/2422:40:2117
159199915621,104cyclictest0-21swapper/2400:20:1917
159199915621,104cyclictest0-21swapper/2400:20:1917
159199915621,102cyclictest0-21swapper/2400:10:1017
159199915621,102cyclictest0-21swapper/2400:10:1017
159199915421,124cyclictest0-21swapper/2422:54:4817
159199915220,98cyclictest0-21swapper/2421:20:1217
159199915120,97cyclictest0-21swapper/2422:32:5117
159199915120,97cyclictest0-21swapper/2422:32:5117
158439914823,84cyclictest0-21swapper/1122:59:333
158439914823,84cyclictest0-21swapper/1122:59:333
158339914856,87cyclictest0-21swapper/921:46:5331
15833991460,83cyclictest0-21swapper/920:50:1431
158439914523,76cyclictest0-21swapper/1122:35:333
1578499144142,1cyclictest151rcu_preempt00:29:451
159199914320,85cyclictest0-21swapper/2423:50:2417
159199914320,85cyclictest0-21swapper/2423:50:2317
158439914323,71cyclictest0-21swapper/1123:06:333
158439914323,71cyclictest0-21swapper/1123:06:323
15833991409,60cyclictest70-21ksoftirqd/921:50:5931
158039914055,61cyclictest0-21swapper/520:55:1727
159199913821,97cyclictest0-21swapper/2419:58:3017
15833991380,85cyclictest0-21swapper/921:37:1531
158039913849,60cyclictest0-21swapper/523:54:3327
158039913849,60cyclictest0-21swapper/523:54:3327
158039913848,60cyclictest0-21swapper/522:33:1927
158039913848,60cyclictest0-21swapper/522:33:1827
158439913723,63cyclictest0-21swapper/1100:00:323
158039913730,68cyclictest0-21swapper/523:28:5327
158039913730,68cyclictest0-21swapper/523:28:5327
158039913729,68cyclictest0-21swapper/522:55:1327
158039913729,68cyclictest0-21swapper/522:55:1327
15784991370,84cyclictest0-21swapper/122:47:391
158129913655,62cyclictest0-21swapper/623:40:4028
158129913655,62cyclictest0-21swapper/623:40:3928
158039913647,57cyclictest0-21swapper/522:51:2827
158039913628,70cyclictest0-21swapper/523:47:0427
158039913628,70cyclictest0-21swapper/523:47:0327
15789991360,81cyclictest0-21swapper/222:15:0512
159449913552,57cyclictest0-21swapper/3022:48:0924
159199913516,93cyclictest0-21swapper/2421:43:1117
158129913551,57cyclictest0-21swapper/623:14:2828
158129913548,60cyclictest0-21swapper/623:35:2028
158129913548,60cyclictest0-21swapper/623:35:1928
158039913552,57cyclictest0-21swapper/522:09:1427
159199913416,89cyclictest0-21swapper/2421:31:2617
158129913430,73cyclictest0-21swapper/600:09:0028
158129913430,73cyclictest0-21swapper/600:09:0028
158129913428,66cyclictest0-21swapper/621:11:0028
158129913427,70cyclictest0-21swapper/621:35:3528
158039913429,69cyclictest0-21swapper/519:35:2527
158039913428,68cyclictest0-21swapper/521:50:4427
158039913428,64cyclictest0-21swapper/519:14:4927
158039913420,30cyclictest0-21swapper/522:23:2827
158039913419,32cyclictest0-21swapper/522:43:2827
158039913417,92cyclictest0-21swapper/523:19:0727
159449913339,58cyclictest0-21swapper/3022:56:4224
159449913339,58cyclictest0-21swapper/3022:56:4224
159449913337,63cyclictest0-21swapper/3020:55:0824
158129913330,69cyclictest0-21swapper/620:39:2828
158129913329,75cyclictest0-21swapper/621:56:5928
158129913329,68cyclictest0-21swapper/621:20:3728
158129913328,63cyclictest0-21swapper/620:15:2628
158039913329,68cyclictest0-21swapper/523:39:0327
158039913329,68cyclictest0-21swapper/523:39:0227
158039913329,67cyclictest0-21swapper/500:37:1927
158039913328,71cyclictest0-21swapper/523:42:4727
158039913328,71cyclictest0-21swapper/523:42:4727
158039913328,70cyclictest0-21swapper/522:27:5727
158039913328,69cyclictest0-21swapper/521:35:0327
158039913326,67cyclictest0-21swapper/522:10:2027
159449913253,65cyclictest0-21swapper/3020:15:1824
159449913243,64cyclictest0-21swapper/3022:12:2124
159449913242,61cyclictest0-21swapper/3023:20:4624
159449913228,68cyclictest0-21swapper/3022:43:3824
159449913227,67cyclictest0-21swapper/3021:55:3124
159449913227,65cyclictest0-21swapper/3021:48:1824
158339913232,62cyclictest0-21swapper/920:45:1231
158129913247,63cyclictest0-21swapper/619:23:0428
158129913231,73cyclictest0-21swapper/600:11:2528
158129913231,73cyclictest0-21swapper/600:11:2528
158129913230,72cyclictest0-21swapper/623:52:2628
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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