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2026-04-22 - 17:57
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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 Apr 22, 2026 12:49:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3273913360,324ptp4l0-21swapper/107:05:121
248609932831,227cyclictest0-21swapper/307:20:2223
249239920120,136cyclictest0-21swapper/1310:08:525
330891183175,6phc2sys0-21swapper/207:07:3712
249919917631,96cyclictest0-21swapper/3009:05:0224
249919917631,96cyclictest0-21swapper/3009:05:0124
248739916311,135cyclictest0-21swapper/511:12:2027
249239915421,123cyclictest0-21swapper/1311:36:505
249239915420,98cyclictest0-21swapper/1307:20:005
249239915321,95cyclictest0-21swapper/1308:25:125
249239915321,85cyclictest0-21swapper/1310:47:535
249239915321,101cyclictest0-21swapper/1310:00:225
248739915211,90cyclictest0-21swapper/510:32:1527
248739915011,101cyclictest0-21swapper/510:27:2827
2495199149109,18cyclictest0-21swapper/2011:28:2713
249239914920,79cyclictest0-21swapper/1311:23:105
248739914511,85cyclictest0-21swapper/509:59:0727
248739914411,94cyclictest0-21swapper/510:08:5627
248739914411,88cyclictest0-21swapper/508:53:0227
248739914411,88cyclictest0-21swapper/508:53:0227
249239914119,93cyclictest0-21swapper/1311:17:015
248739914111,79cyclictest0-21swapper/508:30:2427
249209914037,63cyclictest0-21swapper/1209:39:174
249209914037,63cyclictest0-21swapper/1209:39:174
249239913920,90cyclictest0-21swapper/1311:07:405
24911991390,87cyclictest0-21swapper/1011:24:432
249099913931,64cyclictest0-21swapper/911:40:1231
249589913852,61cyclictest0-21swapper/2207:10:2715
249589913845,60cyclictest0-21swapper/2210:59:1615
249589913747,58cyclictest0-21swapper/2212:09:5015
24958991370,80cyclictest0-21swapper/2212:00:0615
249209913748,51cyclictest0-21swapper/1209:58:304
249209913727,69cyclictest0-21swapper/1210:07:054
24920991370,87cyclictest0-21swapper/1212:30:224
249589913650,61cyclictest0-21swapper/2207:23:1615
249209913628,72cyclictest0-21swapper/1207:30:014
249209913628,71cyclictest0-21swapper/1209:52:164
249209913627,70cyclictest0-21swapper/1207:20:174
249209913626,68cyclictest0-21swapper/1210:57:174
249209913626,68cyclictest0-21swapper/1210:21:294
248739913611,78cyclictest0-21swapper/512:18:3827
249559913535,1cyclictest151rcu_preempt12:40:0014
24923991350,85cyclictest0-21swapper/1307:39:155
249209913528,71cyclictest0-21swapper/1207:30:164
249209913528,70cyclictest0-21swapper/1210:53:234
249589913452,50cyclictest0-21swapper/2212:25:1215
249589913442,57cyclictest0-21swapper/2211:04:3615
249589913436,64cyclictest0-21swapper/2210:12:4615
249209913429,74cyclictest0-21swapper/1211:42:574
249209913429,65cyclictest0-21swapper/1211:06:554
249209913424,65cyclictest0-21swapper/1211:16:464
249589913328,65cyclictest0-21swapper/2208:20:3215
249589913326,64cyclictest0-21swapper/2208:10:2315
249209913329,75cyclictest0-21swapper/1210:25:154
249209913329,74cyclictest0-21swapper/1208:10:024
249209913329,72cyclictest0-21swapper/1208:49:014
249209913329,72cyclictest0-21swapper/1208:49:004
249209913327,73cyclictest0-21swapper/1207:11:164
249209913327,68cyclictest0-21swapper/1212:01:284
249099913349,54cyclictest0-21swapper/909:41:3331
249099913349,54cyclictest0-21swapper/909:41:3331
249099913348,59cyclictest0-21swapper/911:48:4731
249589913260,63cyclictest0-21swapper/2212:30:0715
249589913231,76cyclictest0-21swapper/2212:22:5415
249589913229,70cyclictest0-21swapper/2209:25:4415
249589913229,70cyclictest0-21swapper/2209:25:4415
249589913228,63cyclictest0-21swapper/2208:00:1515
249589913226,74cyclictest0-21swapper/2211:28:3915
249209913253,59cyclictest0-21swapper/1209:25:044
249209913253,59cyclictest0-21swapper/1209:25:044
249209913231,75cyclictest0-21swapper/1209:46:424
249209913231,75cyclictest0-21swapper/1209:46:414
249209913229,68cyclictest0-21swapper/1209:31:434
249209913229,68cyclictest0-21swapper/1209:31:434
249209913229,68cyclictest0-21swapper/1209:15:154
249209913229,68cyclictest0-21swapper/1209:15:154
249209913228,73cyclictest0-21swapper/1210:10:184
249209913228,72cyclictest0-21swapper/1210:40:434
249209913228,70cyclictest0-21swapper/1207:41:424
249589913130,75cyclictest0-21swapper/2210:51:4815
249589913128,71cyclictest0-21swapper/2209:33:1315
249589913128,71cyclictest0-21swapper/2209:33:1315
249589913127,68cyclictest0-21swapper/2212:16:4615
249399913111,91cyclictest0-21swapper/1711:56:219
249209913132,75cyclictest0-21swapper/1209:21:194
249209913132,75cyclictest0-21swapper/1209:21:194
249209913130,74cyclictest0-21swapper/1210:34:014
249209913130,72cyclictest0-21swapper/1209:00:164
249209913130,72cyclictest0-21swapper/1209:00:164
249209913128,74cyclictest0-21swapper/1211:52:214
249209913127,73cyclictest0-21swapper/1210:45:024
249209913127,68cyclictest0-21swapper/1212:12:114
249209913127,68cyclictest0-21swapper/1211:57:574
249209913127,68cyclictest0-21swapper/1207:18:124
249209913125,63cyclictest0-21swapper/1211:20:484
249099913145,60cyclictest0-21swapper/912:38:5531
249099913125,67cyclictest0-21swapper/911:51:5931
249589913045,64cyclictest0-21swapper/2209:24:3915
249589913045,64cyclictest0-21swapper/2209:24:3915
249589913029,71cyclictest0-21swapper/2208:32:5015
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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