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2025-12-08 - 19:34
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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 rackfslot7.osadl.org (updated Mon Dec 08, 2025 12:46:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
34795899602,39cyclictest0-21swapper/211:25:172
34796099590,40cyclictest386523-21lpstat08:15:194
34796099590,39cyclictest0-21swapper/409:22:074
347958995756,1cyclictest421ktimers/209:05:162
34796099560,37cyclictest402481-21date08:45:034
34796099560,37cyclictest402481-21date08:45:024
347960995518,18cyclictest489712-21munin-run11:20:014
347960995517,19cyclictest460102-21lpstat10:25:224
347960995517,19cyclictest377884-21if_enxbe3af2b6008:00:164
347960995417,18cyclictest441764-21munin-run09:55:014
347960995416,19cyclictest482733-21ntpq11:05:194
347960995315,19cyclictest393300-21users08:25:224
347960995314,19cyclictest0-21swapper/409:35:134
347960995313,39cyclictest0-21swapper/411:40:154
347960995234,18cyclictest601ktimers/408:37:384
347960995213,19cyclictest0-21swapper/408:10:124
347960995212,39cyclictest417278-21gltestperf09:10:154
347961995113,19cyclictest0-21swapper/507:50:205
347960995112,19cyclictest0-21swapper/407:50:024
347958995113,19cyclictest0-21swapper/207:10:172
347960995012,38cyclictest0-21swapper/412:04:004
347960995012,19cyclictest0-21swapper/411:04:414
347960995011,39cyclictest0-21swapper/412:23:454
347958995031,19cyclictest0-21swapper/210:00:182
347960994911,19cyclictest0-21swapper/409:05:184
347960994830,18cyclictest0-21swapper/409:25:194
347963994728,19cyclictest0-21swapper/707:20:177
34795899477,39cyclictest0-21swapper/207:40:162
347960994628,18cyclictest0-21swapper/407:28:544
34795899468,19cyclictest0-21swapper/210:50:192
34795899467,20cyclictest0-21swapper/209:25:182
347960994324,19cyclictest0-21swapper/410:20:154
347960994122,19cyclictest0-21swapper/411:32:574
347960994122,19cyclictest0-21swapper/410:50:044
34796099410,1cyclictest0-21swapper/407:30:434
34795899413,19cyclictest0-21swapper/208:45:182
347960994022,18cyclictest0-21swapper/411:12:324
347960994022,18cyclictest0-21swapper/410:18:424
34796099402,19cyclictest601ktimers/412:12:494
34795899400,40cyclictest0-21swapper/209:20:172
34795799402,19cyclictest0-21swapper/111:55:191
347960993920,1cyclictest3759292sleep407:56:124
34796099390,39cyclictest0-21swapper/412:37:424
34796099390,39cyclictest0-21swapper/410:09:544
34796099390,39cyclictest0-21swapper/409:32:524
34796099390,39cyclictest0-21swapper/408:51:094
34796099390,39cyclictest0-21swapper/408:20:544
34796099390,39cyclictest0-21swapper/407:15:344
34796099390,20cyclictest0-21swapper/411:20:164
34796099390,20cyclictest0-21swapper/407:10:224
34795899390,37cyclictest0-21swapper/211:50:232
347957993938,1cyclictest331ktimers/107:45:181
34796399380,38cyclictest0-21swapper/710:20:177
34796299380,19cyclictest0-21swapper/610:35:186
34796099380,38cyclictest0-21swapper/412:34:294
34796099380,38cyclictest0-21swapper/412:28:514
34796099380,38cyclictest0-21swapper/411:56:514
34796099380,38cyclictest0-21swapper/411:53:234
34796099380,38cyclictest0-21swapper/411:48:544
34796099380,38cyclictest0-21swapper/411:38:404
34796099380,38cyclictest0-21swapper/411:26:274
34796099380,38cyclictest0-21swapper/410:55:394
34796099380,38cyclictest0-21swapper/410:30:374
34796099380,38cyclictest0-21swapper/410:01:294
34796099380,38cyclictest0-21swapper/409:47:414
34796099380,38cyclictest0-21swapper/409:43:184
34796099380,38cyclictest0-21swapper/409:17:414
34796099380,38cyclictest0-21swapper/408:57:594
34796099380,38cyclictest0-21swapper/408:57:584
34796099380,38cyclictest0-21swapper/408:47:224
34796099380,38cyclictest0-21swapper/408:05:084
34796099380,38cyclictest0-21swapper/407:39:364
34796099380,38cyclictest0-21swapper/407:21:274
34796099380,18cyclictest468768-21ntpq10:40:224
34795999380,37cyclictest0-21swapper/311:45:163
347957993837,1cyclictest877-21mta-sts-daemon11:00:201
34795799380,18cyclictest0-21swapper/111:05:221
34796099370,37cyclictest0-21swapper/412:18:414
34796099370,37cyclictest0-21swapper/410:13:414
34796099370,37cyclictest0-21swapper/408:31:324
34796099370,37cyclictest0-21swapper/408:31:324
34796099370,37cyclictest0-21swapper/407:46:344
34796099370,37cyclictest0-21swapper/407:43:104
34795899370,18cyclictest0-21swapper/207:25:182
347957993719,0cyclictest877-21mta-sts-daemon11:25:171
34796099360,36cyclictest0-21swapper/412:09:314
34796099360,36cyclictest0-21swapper/410:39:114
34796099360,36cyclictest0-21swapper/409:55:294
34796099360,36cyclictest0-21swapper/409:01:104
34795999360,35cyclictest0-21swapper/307:45:193
34795899360,36cyclictest0-21swapper/211:55:202
34795899360,35cyclictest0-21swapper/212:10:152
34796399350,35cyclictest0-21swapper/712:05:227
347961993519,16cyclictest0-21swapper/511:40:185
34796199350,35cyclictest0-21swapper/512:05:285
347960993516,19cyclictest472861-21unin-run10:50:014
34795999350,15cyclictest0-21swapper/312:30:163
347958993514,20cyclictest0-21swapper/207:50:202
34795899350,35cyclictest0-21swapper/210:20:172
34795899350,15cyclictest0-21swapper/212:15:162
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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