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2025-12-20 - 07:47
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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 rack0slot5.osadl.org (updated Sat Dec 20, 2025 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
35677849956240,521cyclictest0-21swapper/1200:02:464
35677719953612,523cyclictest0-21swapper/923:15:4615
356778499495495,0cyclictest3641441-21kworker/12:2+i915-unordered20:47:464
356779299492490,1cyclictest3787141-21kworker/14:2+i915-unordered00:27:466
35677719947123,29cyclictest0-21swapper/920:00:4615
35677849947021,30cyclictest0-21swapper/1223:05:464
356775799466465,1cyclictest0-21swapper/600:27:4612
35677579946518,29cyclictest0-21swapper/619:38:3212
35677849946215,30cyclictest0-21swapper/1222:06:464
356775799461458,2cyclictest3588548-21kworker/6:0+events19:44:3112
356774899461460,1cyclictest3799518-21kworker/4:0+i915-unordered00:02:4610
3567796994504,30cyclictest0-21swapper/1522:11:467
3567738994505,30cyclictest0-21swapper/119:47:091
3567738994500,30cyclictest0-21swapper/122:19:311
3567738994500,30cyclictest0-21swapper/121:52:311
3567738994500,30cyclictest0-21swapper/121:08:301
3567738994500,30cyclictest0-21swapper/121:08:301
3567784994460,29cyclictest0-21swapper/1220:30:464
356775799446443,2cyclictest3819581-21kworker/6:2+events00:21:3012
3567752994460,28cyclictest0-21swapper/522:00:3111
35677389944625,420cyclictest0-21swapper/122:53:291
3567752994450,443cyclictest0-21swapper/520:39:2911
356773399445444,1cyclictest0-21swapper/020:27:420
3567796994440,442cyclictest0-21swapper/1522:57:467
35677719944324,417cyclictest0-21swapper/920:57:4615
35677719944324,417cyclictest0-21swapper/920:57:4615
35677609944323,420cyclictest0-21swapper/722:59:4113
35677719944111,30cyclictest0-21swapper/921:52:4615
35677849944022,416cyclictest0-21swapper/1219:40:464
35677719944024,414cyclictest0-21swapper/923:51:4615
35677719944024,414cyclictest0-21swapper/923:51:4615
35677719944023,416cyclictest0-21swapper/922:14:4215
35677929943921,417cyclictest0-21swapper/1400:37:466
35677849943921,417cyclictest0-21swapper/1223:21:074
35677849943921,416cyclictest0-21swapper/1221:01:464
35677849943921,416cyclictest0-21swapper/1221:01:464
356778099439437,2cyclictest3714293-21kworker/u64:1+events_unbound22:32:463
35677719943919,419cyclictest0-21swapper/922:17:4615
35677609943818,419cyclictest0-21swapper/723:12:2813
35677849943720,416cyclictest0-21swapper/1222:40:464
35677849943717,419cyclictest0-21swapper/1221:11:464
35677719943719,417cyclictest0-21swapper/923:59:0815
35677719943716,420cyclictest0-21swapper/923:33:0815
35677609943717,419cyclictest0-21swapper/700:04:3013
35677609943714,422cyclictest0-21swapper/723:02:0913
35677849943618,416cyclictest0-21swapper/1200:17:464
35677719943618,417cyclictest0-21swapper/922:24:0815
356776099436434,1cyclictest3596873-21kworker/7:1+i915-unordered19:50:4613
356774499436435,1cyclictest3762852-21kworker/3:1+i915-unordered23:10:469
35677929943517,417cyclictest0-21swapper/1423:32:466
35677849943515,419cyclictest0-21swapper/1221:06:074
35677849943515,419cyclictest0-21swapper/1221:06:074
35677929943413,419cyclictest0-21swapper/1420:54:416
356776399434432,2cyclictest1802-21snmpd20:27:4214
35677609943414,419cyclictest0-21swapper/722:54:0913
35677609943413,420cyclictest0-21swapper/723:53:0713
35677609943413,420cyclictest0-21swapper/723:53:0713
35677609943413,420cyclictest0-21swapper/722:28:2913
35677609943413,420cyclictest0-21swapper/721:19:3113
35677609943413,420cyclictest0-21swapper/719:55:3313
35677849943315,417cyclictest0-21swapper/1200:07:094
35677719943315,417cyclictest0-21swapper/900:38:3015
35677719943314,418cyclictest0-21swapper/923:39:2815
35677609943314,418cyclictest0-21swapper/721:29:0913
35677609943314,416cyclictest0-21swapper/700:20:0913
35677609943313,419cyclictest0-21swapper/723:30:3213
35677609943313,419cyclictest0-21swapper/722:16:3213
35677609943312,420cyclictest0-21swapper/720:29:3113
35677609943312,420cyclictest0-21swapper/720:03:0913
35677969943215,416cyclictest0-21swapper/1519:35:467
35677849943213,417cyclictest0-21swapper/1223:30:094
35677849943211,420cyclictest0-21swapper/1223:46:084
35677849943211,420cyclictest0-21swapper/1223:46:084
35677849943111,419cyclictest0-21swapper/1220:43:094
35677849943111,419cyclictest0-21swapper/1219:48:294
3567738994319,29cyclictest0-21swapper/119:26:461
35677389943113,417cyclictest0-21swapper/100:23:321
35677849943011,418cyclictest0-21swapper/1223:14:094
35677849943011,418cyclictest0-21swapper/1223:03:284
35677609943010,419cyclictest0-21swapper/722:20:3013
356778899429428,1cyclictest142-21ksoftirqd/1300:06:465
3567760994298,420cyclictest0-21swapper/722:34:3013
3567784994286,420cyclictest0-21swapper/1200:22:294
356774499428427,1cyclictest0-21swapper/320:38:589
3567738994280,29cyclictest0-21swapper/119:22:081
356779299427427,0cyclictest0-21swapper/1421:01:296
356779299427427,0cyclictest0-21swapper/1421:01:296
3567784994278,418cyclictest0-21swapper/1223:54:304
3567784994278,418cyclictest0-21swapper/1223:54:304
3567760994274,419cyclictest0-21swapper/723:43:0913
356774899427425,2cyclictest0-21swapper/421:17:4610
3567738994270,30cyclictest0-21swapper/119:30:301
3567738994270,29cyclictest0-21swapper/119:40:301
3567796994269,416cyclictest0-21swapper/1523:00:467
3567792994267,418cyclictest0-21swapper/1419:55:466
3567784994265,418cyclictest0-21swapper/1200:31:084
3567771994268,417cyclictest0-21swapper/920:20:0815
3567760994267,417cyclictest0-21swapper/722:43:4613
356775299426424,1cyclictest3803329-21kworker/u64:0+events_unbound00:06:4611
3567738994261,30cyclictest0-21swapper/121:15:301
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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