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2026-05-14 - 10:44
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 rackbslot6.osadl.org (updated Thu May 14, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2653521710,5sleep3399399cyclictest21:19:423
1002521580,4sleep3399399cyclictest20:44:413
1159621400,5sleep3399399cyclictest00:28:313
2062621370,5sleep0397699cyclictest22:57:460
1068911020,3ptp4l401ktimersoftd/320:29:583
131782750,4sleep1398199cyclictest00:29:461
106891670,1ptp4l401ktimersoftd/300:44:313
38402664,10sleep20-21swapper/220:33:572
36092664,9sleep00-21swapper/020:30:560
66812630,2sleep20-21swapper/201:29:492
3976996053,4cyclictest9-21ksoftirqd/001:04:430
3993995847,6cyclictest41-21ksoftirqd/322:29:383
3993995845,7cyclictest41-21ksoftirqd/323:39:413
3993995845,7cyclictest41-21ksoftirqd/323:39:413
106891580,1ptp4l401ktimersoftd/323:00:253
106891580,1ptp4l401ktimersoftd/322:38:563
3976995748,5cyclictest9-21ksoftirqd/001:19:430
3976995748,5cyclictest9-21ksoftirqd/001:19:430
106891570,1ptp4l401ktimersoftd/301:01:083
3976995648,4cyclictest9-21ksoftirqd/023:04:400
69692540,1sleep10-21swapper/121:44:491
3993995343,4cyclictest41-21ksoftirqd/300:44:433
3993995341,5cyclictest41-21ksoftirqd/300:04:423
3993995338,6cyclictest41-21ksoftirqd/323:34:413
86942520,2sleep00-21swapper/020:39:520
3976995038,8cyclictest9-21ksoftirqd/001:49:440
106891490,1ptp4l401ktimersoftd/323:09:283
3976994735,6cyclictest9-21ksoftirqd/021:19:380
97462460,3sleep10-21swapper/100:59:451
3993994533,5cyclictest41-21ksoftirqd/321:09:383
3976994533,5cyclictest9-21ksoftirqd/022:49:400
20802444,24sleep12094-21/usr/sbin/munin20:29:401
106891440,1ptp4l401ktimersoftd/301:16:033
106891430,1ptp4l401ktimersoftd/320:52:563
106891430,1ptp4l401ktimersoftd/301:41:183
3976994229,6cyclictest9-21ksoftirqd/023:24:400
3993994034,3cyclictest41-21ksoftirqd/301:04:433
3993994028,6cyclictest41-21ksoftirqd/301:29:433
3976994028,6cyclictest9-21ksoftirqd/023:54:410
106891400,1ptp4l401ktimersoftd/300:20:503
3993993929,5cyclictest41-21ksoftirqd/322:19:383
106891390,1ptp4l401ktimersoftd/323:51:053
106891390,1ptp4l401ktimersoftd/323:21:443
106891390,1ptp4l401ktimersoftd/300:55:063
106891390,1ptp4l401ktimersoftd/300:31:443
3976993828,5cyclictest9-21ksoftirqd/000:54:420
3976993827,4cyclictest9-21ksoftirqd/000:09:420
3976993825,7cyclictest9-21ksoftirqd/021:29:380
106891380,1ptp4l401ktimersoftd/323:45:373
106891380,1ptp4l401ktimersoftd/323:25:333
106891380,1ptp4l401ktimersoftd/323:19:163
106891380,1ptp4l401ktimersoftd/322:40:373
106891380,1ptp4l401ktimersoftd/302:03:333
106891380,1ptp4l401ktimersoftd/301:52:003
106891380,1ptp4l401ktimersoftd/301:45:443
106891380,1ptp4l401ktimersoftd/301:25:043
106891380,1ptp4l401ktimersoftd/300:17:063
106891380,1ptp4l401ktimersoftd/300:14:003
106891380,1ptp4l401ktimersoftd/300:02:173
397699374,18cyclictest6051-21snmpd23:14:390
106891370,1ptp4l401ktimersoftd/323:30:483
106891370,1ptp4l401ktimersoftd/323:10:343
106891370,1ptp4l401ktimersoftd/301:38:113
106891370,1ptp4l401ktimersoftd/301:22:123
106891370,1ptp4l401ktimersoftd/301:22:123
106891370,1ptp4l401ktimersoftd/300:39:023
106891370,0ptp4l401ktimersoftd/322:55:223
315812360,3sleep10-21swapper/101:54:531
106891360,1ptp4l401ktimersoftd/320:59:443
106891360,1ptp4l401ktimersoftd/301:58:313
106891360,0ptp4l401ktimersoftd/322:51:183
3976993527,4cyclictest9-21ksoftirqd/021:49:380
106891350,1ptp4l401ktimersoftd/300:50:153
3976993424,5cyclictest9-21ksoftirqd/021:59:390
129512340,3sleep00-21swapper/001:02:490
3993993322,9cyclictest41-21ksoftirqd/321:59:563
106891330,1ptp4l401ktimersoftd/322:45:333
3993993226,3cyclictest41-21ksoftirqd/321:54:273
3993993220,5cyclictest41-21ksoftirqd/322:09:403
3981993225,3cyclictest25-21ksoftirqd/122:59:541
3976993227,3cyclictest9-21ksoftirqd/000:39:500
3976993226,3cyclictest9-21ksoftirqd/023:54:290
3976993214,4cyclictest9-21ksoftirqd/000:04:240
106891320,2ptp4l26719-21kworker/3:222:24:453
106891320,2ptp4l26719-21kworker/3:220:57:593
106891320,1ptp4l20307-21kworker/3:223:58:163
3993993125,3cyclictest41-21ksoftirqd/320:34:383
397699315,15cyclictest11019-21ssh01:34:420
3976993125,3cyclictest9-21ksoftirqd/022:24:280
3976993124,4cyclictest9-21ksoftirqd/023:09:410
106891310,1ptp4l401ktimersoftd/322:15:433
106891310,1ptp4l401ktimersoftd/321:30:103
106891310,1ptp4l401ktimersoftd/321:18:243
3986993023,4cyclictest33-21ksoftirqd/200:29:552
398699300,3cyclictest121rcu_preempt23:40:252
398699300,3cyclictest121rcu_preempt23:40:252
3976993025,3cyclictest9-21ksoftirqd/023:04:290
3976993025,3cyclictest9-21ksoftirqd/001:29:320
3976993025,3cyclictest9-21ksoftirqd/001:14:310
3976993024,3cyclictest9-21ksoftirqd/021:59:270
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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