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2025-12-05 - 12:02
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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 Fri Dec 05, 2025 00:49:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2482912620,253ptp4l0-21swapper/119:05:471
53529921842,173cyclictest151rcu_preempt21:19:0631
5424991991,1cyclictest151rcu_preempt23:09:1417
5424991963,181cyclictest161-21ksoftirqd/2421:00:2917
53979917645,130cyclictest0-21swapper/1820:11:2110
5424991745,140cyclictest161-21ksoftirqd/2423:11:5117
5348991666,0cyclictest64-21ksoftirqd/800:33:1130
53979916231,106cyclictest0-21swapper/1800:15:3710
54199915216,111cyclictest0-21swapper/2321:40:3516
54249915017,100cyclictest0-21swapper/2400:30:2917
53169914913,115cyclictest0-21swapper/121:25:391
53579914730,95cyclictest0-21swapper/1000:25:392
5357991470,85cyclictest0-21swapper/1000:34:432
5340991470,87cyclictest0-21swapper/621:34:3428
5340991460,86cyclictest0-21swapper/623:17:4228
5316991449,125cyclictest0-21swapper/123:47:331
54249914330,109cyclictest9516-21cut21:20:0117
5340991430,86cyclictest0-21swapper/622:37:3628
5340991420,85cyclictest0-21swapper/621:45:4628
5340991410,83cyclictest0-21swapper/623:12:2128
5357991400,82cyclictest0-21swapper/1021:21:482
53409914048,60cyclictest0-21swapper/622:19:5828
53579913927,69cyclictest0-21swapper/1019:14:372
53579913927,69cyclictest0-21swapper/1019:14:372
5419991380,86cyclictest0-21swapper/2321:07:3316
53579913853,61cyclictest0-21swapper/1022:33:572
53579913828,69cyclictest0-21swapper/1020:40:152
53579913827,110cyclictest0-21swapper/1021:17:002
5357991380,87cyclictest0-21swapper/1000:17:382
5357991380,80cyclictest0-21swapper/1000:10:082
53409913849,58cyclictest0-21swapper/621:44:4228
53409913848,59cyclictest0-21swapper/621:51:0828
53409913847,57cyclictest0-21swapper/622:48:4928
5340991380,86cyclictest0-21swapper/621:28:4028
5340991380,84cyclictest0-21swapper/623:20:2328
5340991380,83cyclictest0-21swapper/600:31:3728
5411991375,130cyclictest0-21swapper/2123:16:2014
5340991370,85cyclictest0-21swapper/622:07:1028
5340991370,80cyclictest0-21swapper/622:10:2128
5357991360,84cyclictest0-21swapper/1022:18:412
53409913644,58cyclictest0-21swapper/600:01:0028
53409913627,69cyclictest0-21swapper/622:26:2328
5340991360,84cyclictest0-21swapper/622:21:3428
5316991361,98cyclictest0-21swapper/122:35:231
5419991350,81cyclictest0-21swapper/2322:49:3316
53579913543,62cyclictest0-21swapper/1022:20:342
5357991350,79cyclictest0-21swapper/1019:25:202
5357991350,79cyclictest0-21swapper/1019:25:192
53409913553,59cyclictest0-21swapper/621:15:2328
54289913449,57cyclictest167-21ksoftirqd/2522:17:5518
5411991346,89cyclictest0-21swapper/2119:46:1614
5411991346,89cyclictest0-21swapper/2119:46:1514
5411991345,127cyclictest0-21swapper/2122:16:5614
53579913439,64cyclictest0-21swapper/1023:40:132
53579913439,64cyclictest0-21swapper/1023:40:132
53579913431,76cyclictest0-21swapper/1023:48:452
53579913429,68cyclictest0-21swapper/1022:38:452
53409913451,60cyclictest0-21swapper/623:45:1628
53409913448,58cyclictest0-21swapper/600:27:4228
53409913421,71cyclictest0-21swapper/621:36:0828
5340991340,79cyclictest0-21swapper/622:02:2128
5411991335,83cyclictest0-21swapper/2121:54:0214
5411991335,128cyclictest0-21swapper/2121:34:4914
53979913329,66cyclictest0-21swapper/1821:45:2710
53979913326,62cyclictest0-21swapper/1819:55:2310
53979913325,67cyclictest0-21swapper/1820:41:2010
53579913343,58cyclictest0-21swapper/1023:29:312
53579913331,67cyclictest0-21swapper/1021:39:252
53579913326,63cyclictest0-21swapper/1021:05:142
53579913315,74cyclictest0-21swapper/1021:55:282
5357991330,77cyclictest0-21swapper/1020:30:312
53409913329,69cyclictest0-21swapper/623:59:2228
5340991330,78cyclictest0-21swapper/619:40:1328
5340991330,78cyclictest0-21swapper/619:40:1328
5411991325,126cyclictest0-21swapper/2122:32:5914
53979913229,70cyclictest0-21swapper/1821:40:3810
53979913226,66cyclictest0-21swapper/1822:16:5810
53839913249,46cyclictest151rcu_preempt00:20:438
53579913230,75cyclictest0-21swapper/1022:46:472
53579913225,62cyclictest0-21swapper/1022:40:212
5357991320,83cyclictest0-21swapper/1021:25:332
5357991320,81cyclictest0-21swapper/1000:20:172
53409913222,72cyclictest0-21swapper/600:11:0928
53409913217,72cyclictest0-21swapper/600:38:3428
5405991310,80cyclictest0-21swapper/1900:00:4111
53979913129,67cyclictest0-21swapper/1822:05:1310
53979913129,66cyclictest0-21swapper/1822:47:1410
53979913129,64cyclictest0-21swapper/1800:26:4910
53979913127,64cyclictest0-21swapper/1819:30:1610
53979913127,64cyclictest0-21swapper/1819:30:1610
53979913126,61cyclictest0-21swapper/1819:48:2610
53979913126,61cyclictest0-21swapper/1819:48:2610
53579913129,67cyclictest0-21swapper/1023:56:152
53579913125,67cyclictest0-21swapper/1023:34:522
53579913125,62cyclictest0-21swapper/1023:36:032
5357991310,80cyclictest0-21swapper/1020:01:132
53409913134,62cyclictest0-21swapper/620:30:2728
53409913126,62cyclictest0-21swapper/621:04:5028
5340991310,76cyclictest0-21swapper/620:25:0528
53979913030,74cyclictest0-21swapper/1823:26:2710
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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