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2026-06-17 - 04:34
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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 Wed Jun 17, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
533521310,5sleep3337899cyclictest00:39:273
106891980,3ptp4l401ktimersoftd/320:49:003
3359997655,14cyclictest9-21ksoftirqd/001:03:300
106891710,1ptp4l401ktimersoftd/300:58:143
106891690,1ptp4l401ktimersoftd/300:01:233
162742680,6sleep316279-21gltestperf00:18:353
77692670,1sleep20-21swapper/202:21:442
21922665,47sleep00-21swapper/020:48:340
336799659,25cyclictest1900-21seq02:15:031
336799640,32cyclictest28901-21diskmemload23:13:221
3359996350,6cyclictest9-21ksoftirqd/002:03:320
106891630,1ptp4l401ktimersoftd/302:02:313
296652620,4sleep2337399cyclictest21:43:372
296652620,4sleep2337399cyclictest21:43:372
336799611,26cyclictest20926-21ptp4l-jitter01:28:421
31562614,10sleep20-21swapper/220:52:032
245482610,4sleep0101ktimersoftd/021:33:320
336799601,28cyclictest15550-21ssh00:50:101
336799600,27cyclictest31085-21ssh02:12:531
336799591,25cyclictest9195-21mailstats22:08:381
3367995910,26cyclictest13119-21sh00:14:281
106891590,1ptp4l401ktimersoftd/323:56:323
106891590,1ptp4l401ktimersoftd/323:20:423
106891590,1ptp4l401ktimersoftd/323:20:423
68072580,2sleep00-21swapper/002:20:050
336799581,32cyclictest22724-21ssh00:24:091
336799581,25cyclictest2466-21seq21:54:031
336799580,25cyclictest27722-21sh23:57:281
3359995847,6cyclictest9-21ksoftirqd/023:03:280
3359995846,5cyclictest9-21ksoftirqd/023:23:270
225832580,4sleep2321ktimersoftd/223:18:362
225832580,4sleep2321ktimersoftd/223:18:362
36402570,26sleep03740-21if_ens300:38:370
336799571,24cyclictest30051-21sh23:26:151
336799570,29cyclictest0-21swapper/101:52:221
336799570,28cyclictest31124-21ssh01:06:451
336799570,27cyclictest15771-21seq21:17:421
336799570,26cyclictest31570-21ssh01:39:051
336799570,26cyclictest14462-21seq22:20:491
336799570,25cyclictest32225-21sh00:01:491
336799570,24cyclictest13656-21sh01:22:141
336799570,24cyclictest13656-21sh01:22:141
336799570,24cyclictest1347-21taskset22:58:131
336799561,27cyclictest5424-21chrt20:55:071
336799560,26cyclictest7011-21ssh02:20:261
336799560,24cyclictest28901-21diskmemload02:05:561
336799560,24cyclictest18053-21seq00:19:331
3359995647,4cyclictest9-21ksoftirqd/023:18:290
3359995647,4cyclictest9-21ksoftirqd/023:18:290
3359995645,6cyclictest9-21ksoftirqd/001:58:330
3359995644,7cyclictest9-21ksoftirqd/021:28:270
336799551,28cyclictest24690-21sh00:59:081
336799550,29cyclictest5979-21sh23:33:471
336799550,23cyclictest12129-21taskset00:47:411
3359995543,5cyclictest9-21ksoftirqd/001:23:310
336799530,24cyclictest11058-21ssh23:07:381
48982520,5sleep04832-21irqrtprio23:33:360
336799521,26cyclictest8950-21/usr/sbin/munin21:03:271
336799521,22cyclictest14718-21ssh01:55:011
336799520,25cyclictest7382-21runrttasks22:05:591
336799520,22cyclictest13315-21runrttasks21:11:311
336799520,21cyclictest7475-21ssh00:08:451
293842510,1sleep20-21swapper/200:31:512
336799500,25cyclictest30476-21turbostat.cron21:48:091
336799500,25cyclictest30476-21turbostat.cron21:48:091
336799500,23cyclictest12931-21sh23:42:191
336799500,22cyclictest4104-21ssh22:59:331
336799500,22cyclictest24460-21ssh23:20:271
336799500,22cyclictest24460-21ssh23:20:271
3359994939,6cyclictest9-21ksoftirqd/020:58:250
30512494,33sleep10-21swapper/120:50:411
143291490,4getstats337899cyclictest01:45:423
3359994841,3cyclictest9-21ksoftirqd/000:23:310
105791480,3getstats46850irq/99-ens3-TxR01:05:103
336799471,24cyclictest23814-21chrt22:39:081
336799471,24cyclictest21422-21fschecks_time21:28:301
336799471,23cyclictest0-21swapper/101:10:241
3359994737,4cyclictest9-21ksoftirqd/023:48:320
3359994735,6cyclictest9-21ksoftirqd/023:53:270
336799461,31cyclictest31565-21/usr/sbin/munin23:28:351
336799461,25cyclictest27920-21chrt21:40:591
106891460,2ptp4l29727-21kworker/3:122:28:293
336799451,26cyclictest20175-21ssh00:54:441
336799450,31cyclictest8586-21taskset01:16:551
336799450,24cyclictest28901-21diskmemload00:04:241
336799450,21cyclictest0-21swapper/100:34:281
336799441,27cyclictest26975-21grep22:48:291
336799440,27cyclictest19084-21chrt22:29:091
336799440,21cyclictest0-21swapper/123:49:461
3359994432,5cyclictest9-21ksoftirqd/021:43:260
3359994432,5cyclictest9-21ksoftirqd/021:43:260
3359994431,6cyclictest9-21ksoftirqd/022:08:270
336799431,25cyclictest21583-21taskset22:35:531
336799431,24cyclictest6356-21ssh01:47:401
336799430,30cyclictest25708-21seq21:38:051
336799430,25cyclictest29437-21taskset00:31:561
336799430,24cyclictest0-21swapper/101:36:211
26392430,1sleep20-21swapper/200:38:142
336799420,25cyclictest7074-21chrt00:42:261
336799420,22cyclictest15777-21users23:43:491
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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