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2026-06-28 - 12:34
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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 Sun Jun 28, 2026 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2862521820,3sleep2700599cyclictest01:05:222
1858121680,4sleep1700099cyclictest02:01:101
1068911190,8ptp4l25608-21kworker/3:220:55:073
27202960,4sleep32724-21irqrtprio00:39:413
140782760,2sleep20-21swapper/201:57:012
279912690,2sleep10-21swapper/123:26:201
151582640,4sleep1700099cyclictest00:52:241
316562620,2sleep30-21swapper/323:29:483
223092590,1sleep10-21swapper/101:32:471
196922580,3sleep0699399cyclictest00:24:330
47462574,10sleep10-21swapper/120:54:231
106891570,1ptp4l401ktimersoftd/300:09:073
700599565,11cyclictest22175-21latency_hist21:29:182
700599563,20cyclictest18923-21ssh01:29:362
700599555,18cyclictest23719-21awk21:29:462
7015995442,5cyclictest41-21ksoftirqd/323:19:313
224172540,1sleep30-21swapper/300:26:203
178852540,3sleep125-21ksoftirqd/123:49:371
142822540,3sleep00-21swapper/021:09:450
700599533,18cyclictest6309-21cpuspeed_turbos01:49:382
700599533,13cyclictest20031-21fschecks_count00:24:372
67622534,38sleep00-21swapper/020:57:450
7015995242,5cyclictest41-21ksoftirqd/301:14:343
700599525,10cyclictest3570-21ls00:39:512
700599523,18cyclictest30932-21fschecks_count02:14:412
700599522,13cyclictest15023-21open_files01:24:442
700599515,10cyclictest19010-21sed21:19:432
700599514,10cyclictest8634-21cut02:24:422
700599513,13cyclictest12841-21ssh23:44:342
700599502,12cyclictest21622-21cut02:04:442
51252500,2sleep30-21swapper/323:04:103
700599492,19cyclictest18630-21wc22:29:332
700599492,12cyclictest25286-21grep23:24:342
7015994838,5cyclictest41-21ksoftirqd/300:49:343
700599486,7cyclictest0-21swapper/222:34:372
700599486,7cyclictest0-21swapper/200:59:362
700599484,11cyclictest25810-21cat02:09:382
700599484,10cyclictest27916-21latency_hist22:49:202
700599483,12cyclictest10231-21ssh23:40:552
700599483,10cyclictest10917-21fschecks_count23:09:362
700599481,13cyclictest643-21date01:44:232
700599481,12cyclictest28475-21/usr/sbin/munin23:59:412
700599480,12cyclictest5011-21ssh00:09:342
700599474,11cyclictest3999-21ls02:19:452
700599473,11cyclictest3707-21sed23:34:392
700599471,13cyclictest24035-21cut22:39:362
700599471,13cyclictest24035-21cut22:39:362
700599471,12cyclictest25187-21gltestperf21:34:342
700599470,15cyclictest15717-21latency_hist22:24:192
106891470,1ptp4l401ktimersoftd/323:35:553
700599466,7cyclictest21624-21processes23:19:412
700599465,8cyclictest0-21swapper/221:09:402
700599464,8cyclictest2677-21snmp_o5powerctl01:44:492
700599463,12cyclictest18319-21timerandwakeup00:54:512
700599462,10cyclictest31484-21cpuspeed_turbos01:09:352
700599460,12cyclictest28026-21/usr/sbin/munin22:49:312
700599460,12cyclictest17292-21processes01:59:482
700599451,13cyclictest22897-21perl23:54:382
700599451,12cyclictest32537-21diskmemload01:14:452
700599450,13cyclictest14600-21ssh00:51:272
700599450,12cyclictest11400-21switchtime00:14:502
700599442,10cyclictest15781-21diskstats23:14:372
7015994332,5cyclictest41-21ksoftirqd/323:04:333
7015994231,5cyclictest41-21ksoftirqd/300:09:343
7015994113,4cyclictest41-21ksoftirqd/301:04:383
106891410,1ptp4l401ktimersoftd/321:16:423
7015994019,3cyclictest41-21ksoftirqd/302:04:553
7015994017,8cyclictest41-21ksoftirqd/301:44:233
7015994017,4cyclictest41-21ksoftirqd/322:49:483
700599404,6cyclictest0-21swapper/200:34:452
700599401,20cyclictest7873-21snmp_o5powerctl22:04:432
6993994034,4cyclictest26789-21latency_hist21:39:180
106891400,1ptp4l401ktimersoftd/323:25:593
7015993933,3cyclictest41-21ksoftirqd/301:29:243
7015993925,11cyclictest41-21ksoftirqd/301:29:393
700599393,5cyclictest0-21swapper/223:29:402
106891390,1ptp4l401ktimersoftd/322:39:433
106891390,1ptp4l401ktimersoftd/322:39:433
106891390,1ptp4l401ktimersoftd/301:53:273
106891390,15ptp4l401ktimersoftd/301:19:393
106891380,1ptp4l401ktimersoftd/323:57:123
106891380,1ptp4l401ktimersoftd/323:11:283
106891380,1ptp4l401ktimersoftd/321:29:423
106891380,1ptp4l401ktimersoftd/302:17:283
106891380,1ptp4l401ktimersoftd/301:59:543
106891380,1ptp4l401ktimersoftd/301:56:363
106891380,1ptp4l401ktimersoftd/300:46:173
106891380,1ptp4l401ktimersoftd/300:19:253
106891380,1ptp4l401ktimersoftd/300:19:253
106891380,0ptp4l401ktimersoftd/302:11:373
701599375,7cyclictest41-21ksoftirqd/301:14:233
7015993725,9cyclictest41-21ksoftirqd/322:29:373
700599377,6cyclictest0-21swapper/200:29:432
700599374,5cyclictest0-21swapper/223:06:372
700599373,8cyclictest31812-21snmp_o5powerctl22:54:452
269492370,2sleep10-21swapper/123:59:201
106891370,1ptp4l401ktimersoftd/323:49:503
106891370,1ptp4l401ktimersoftd/323:42:413
106891370,1ptp4l401ktimersoftd/322:24:363
106891370,1ptp4l401ktimersoftd/301:03:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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