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2026-01-11 - 23:17
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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 Jan 11, 2026 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2783021670,3sleep02914899cyclictest10:04:060
502921660,2sleep22916299cyclictest11:53:362
1068911450,4ptp4l401ktimersoftd/307:23:243
1108221400,3sleep22916299cyclictest09:01:532
273872707,46sleep10-21swapper/107:21:541
45952680,4sleep02914899cyclictest11:20:580
101182680,2sleep10-21swapper/110:19:161
289672664,10sleep00-21swapper/007:25:360
127762630,2sleep312777-21ssh09:48:233
96122620,2sleep29614-21ptp4l-jitter08:56:592
106891610,1ptp4l401ktimersoftd/311:57:043
36042590,5sleep13606-21proc_pri11:52:031
192902550,1sleep10-21swapper/108:11:501
2916299548,8cyclictest4145-21grep10:46:542
284302540,2sleep00-21swapper/009:31:540
246362540,3sleep32917099cyclictest11:07:043
246362540,3sleep32917099cyclictest11:07:043
68092520,2sleep10-21swapper/110:16:391
42492510,2sleep00-21swapper/012:26:540
29170995114,21cyclictest23767-21sh10:00:313
2916299511,16cyclictest8287-21/usr/sbin/munin11:57:002
149782510,1sleep20-21swapper/210:57:032
77762500,1sleep20-21swapper/210:16:572
59542490,2sleep2311rcuc/210:15:322
2917099491,25cyclictest19297-21ssh09:56:133
287972474,29sleep20-21swapper/207:23:242
2917099460,27cyclictest8742-21ssh12:31:523
2916299469,5cyclictest33-21ksoftirqd/209:36:282
29162994510,5cyclictest33-21ksoftirqd/212:56:362
2914899453,33cyclictest11926-21apt-get12:36:510
2917099440,23cyclictest22503-21diskmemload09:37:143
2916299445,7cyclictest0-21swapper/211:06:402
2916299445,7cyclictest0-21swapper/211:06:402
2914899442,37cyclictest19976-21apt-get09:56:500
2916299439,5cyclictest33-21ksoftirqd/212:02:122
2914899431,35cyclictest25076-21apt-get11:41:530
2916299429,5cyclictest33-21ksoftirqd/212:19:412
2914899421,35cyclictest10201-21apt-get09:46:500
2914899413,32cyclictest8376-21apt-get08:56:490
2914899413,32cyclictest31547-21apt-get12:21:530
2914899413,32cyclictest15684-21apt-get09:11:490
2914899412,33cyclictest9726-21apt-get07:51:540
2914899412,33cyclictest3625-21apt-get08:46:490
2914899411,36cyclictest0-21swapper/009:26:500
2914899411,35cyclictest0-21swapper/009:51:500
2917099400,24cyclictest5019-21/usr/sbin/munin12:27:003
29162994032,5cyclictest33-21ksoftirqd/208:31:412
29162994011,5cyclictest33-21ksoftirqd/212:23:302
2914899403,32cyclictest23963-21apt-get08:21:480
2914899402,32cyclictest13317-21apt-get09:06:500
2914899402,31cyclictest8663-21apt-get10:51:510
2914899401,35cyclictest0-21swapper/008:16:480
2914899400,5cyclictest20600-21grep11:36:560
2914899400,3cyclictest16789-21ssh11:32:050
2917099393,29cyclictest26681-21apt-get12:16:543
29155993913,23cyclictest18304-21sed08:07:041
2914899393,30cyclictest28915-21apt-get08:31:490
2914899392,31cyclictest3796-21apt-get10:46:510
2914899392,31cyclictest29699-21apt-get10:06:500
2914899392,31cyclictest16837-21apt-get08:06:470
2914899392,30cyclictest26330-21apt-get08:26:480
2914899392,30cyclictest23273-21apt-get11:06:530
2914899392,30cyclictest23273-21apt-get11:06:530
2914899392,30cyclictest11895-21apt-get10:21:500
29148993914,22cyclictest17132-21cut10:26:550
2914899391,32cyclictest5991-21apt-get08:51:500
2914899391,32cyclictest26681-21apt-get12:16:540
2914899391,32cyclictest18073-21apt-get09:16:510
2914899391,32cyclictest18073-21apt-get09:16:510
29148993912,24cyclictest6818-21latency_hist10:16:390
2914899390,5cyclictest31038-21needreboot11:47:000
106891390,1ptp4l401ktimersoftd/311:17:263
106891390,1ptp4l401ktimersoftd/309:46:093
106891390,1ptp4l401ktimersoftd/309:28:153
2916299386,6cyclictest33-21ksoftirqd/209:47:082
2915599383,5cyclictest0-21swapper/112:26:511
2915599383,5cyclictest0-21swapper/108:56:491
2915599382,12cyclictest30330-21cat07:27:001
2915599382,12cyclictest30330-21cat07:27:001
2914899383,29cyclictest7027-21apt-get10:16:500
2914899382,30cyclictest4775-21apt-get07:41:480
2914899382,30cyclictest26725-21apt-get12:51:550
2914899382,29cyclictest31316-21apt-get08:36:520
2914899380,4cyclictest11589-21irqrtprio09:01:560
2914899380,3cyclictest22503-21diskmemload09:45:180
106891380,1ptp4l401ktimersoftd/312:41:573
106891380,1ptp4l401ktimersoftd/312:22:383
106891380,1ptp4l401ktimersoftd/311:50:153
106891380,1ptp4l401ktimersoftd/311:31:243
106891380,1ptp4l401ktimersoftd/311:02:063
106891380,1ptp4l401ktimersoftd/310:30:273
2916299377,5cyclictest33-21ksoftirqd/211:05:202
2916299377,4cyclictest33-21ksoftirqd/211:27:282
29162993710,5cyclictest33-21ksoftirqd/211:16:542
2915599373,9cyclictest29936-21ssh11:46:521
2915599373,5cyclictest0-21swapper/108:26:481
2915599372,4cyclictest0-21swapper/110:06:501
2915599372,30cyclictest21986-21grep08:16:531
29155993713,21cyclictest14901-21sh10:24:091
29155993713,21cyclictest10538-21expr09:46:531
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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