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2026-07-28 - 10:38
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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 all highest latencies:
System rackbslot6.osadl.org (updated Tue Jul 28, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3252121670,3sleep3512999cyclictest23:17:573
1353521410,3sleep1511699cyclictest01:11:171
1068911050,4ptp4l401ktimersoftd/321:11:143
27932780,3sleep20-21swapper/201:33:422
27932780,3sleep20-21swapper/201:33:422
106891650,1ptp4l401ktimersoftd/301:25:483
65982640,2sleep10-21swapper/123:25:371
190782620,2sleep10-21swapper/101:16:271
106891620,0ptp4l401ktimersoftd/302:40:023
154002600,2sleep10-21swapper/121:36:131
106891590,1ptp4l401ktimersoftd/323:45:593
106891590,1ptp4l401ktimersoftd/321:21:543
106891580,1ptp4l401ktimersoftd/300:24:123
106891560,1ptp4l401ktimersoftd/323:24:503
106891560,1ptp4l401ktimersoftd/301:06:513
204242550,2sleep30-21swapper/321:46:153
97772530,2sleep00-21swapper/002:13:470
30642520,2sleep20-21swapper/200:26:492
106891500,2ptp4l23144-21kworker/3:222:06:593
106891500,2ptp4l23144-21kworker/3:222:06:593
106891500,1ptp4l401ktimersoftd/323:32:033
106891480,2ptp4l29811-21kworker/3:201:05:483
106891470,1ptp4l401ktimersoftd/300:02:303
106891450,1ptp4l401ktimersoftd/301:45:303
106891430,2ptp4l23144-21kworker/3:223:43:093
106891430,1ptp4l401ktimersoftd/300:56:393
106891410,2ptp4l9531-21kworker/3:002:26:123
106891400,2ptp4l29811-21kworker/3:201:40:103
106891400,2ptp4l29811-21kworker/3:201:40:103
106891400,1ptp4l401ktimersoftd/301:51:353
39542395,20sleep20-21swapper/221:11:202
106891390,1ptp4l401ktimersoftd/302:11:473
106891390,1ptp4l401ktimersoftd/300:31:223
106891380,1ptp4l401ktimersoftd/302:08:543
106891380,1ptp4l401ktimersoftd/301:27:123
106891380,1ptp4l401ktimersoftd/300:49:223
106891380,0ptp4l401ktimersoftd/300:54:483
511699377,9cyclictest16750-21fschecks_time02:21:121
5116993712,4cyclictest28187-21mailstats23:46:171
106891370,1ptp4l401ktimersoftd/323:59:433
106891370,1ptp4l401ktimersoftd/323:53:503
106891370,1ptp4l401ktimersoftd/323:39:533
106891370,1ptp4l401ktimersoftd/323:26:183
106891370,1ptp4l401ktimersoftd/302:44:003
106891370,1ptp4l401ktimersoftd/302:24:123
106891370,1ptp4l401ktimersoftd/302:17:583
106891370,1ptp4l401ktimersoftd/301:58:103
106891370,1ptp4l401ktimersoftd/301:46:403
106891370,1ptp4l401ktimersoftd/301:31:533
106891370,1ptp4l401ktimersoftd/301:31:533
106891370,1ptp4l401ktimersoftd/301:17:113
106891370,1ptp4l401ktimersoftd/300:42:223
106891370,1ptp4l401ktimersoftd/300:36:583
106891370,1ptp4l401ktimersoftd/300:26:023
106891370,0ptp4l401ktimersoftd/322:35:023
511699361,18cyclictest32505-21ssh00:57:131
5116993611,4cyclictest28442-21latency_hist02:00:571
106891360,2ptp4l9531-21kworker/3:002:34:213
106891360,1ptp4l401ktimersoftd/300:09:373
106891360,0ptp4l401ktimersoftd/322:01:093
106891360,0ptp4l401ktimersoftd/322:01:093
106891360,0ptp4l401ktimersoftd/302:03:023
106891360,0ptp4l401ktimersoftd/301:12:003
5116993512,3cyclictest29221-21date23:15:541
5116993511,4cyclictest24418-21grep23:05:531
19512350,4sleep1511699cyclictest02:06:131
106891350,2ptp4l23144-21kworker/3:223:08:043
67542340,2sleep00-21swapper/001:05:210
511699348,7cyclictest8233-21irqrtprio01:06:151
511699346,9cyclictest0-21swapper/123:40:001
511699343,8cyclictest31664-21apt-get23:51:051
5116993413,3cyclictest15137-21/usr/sbin/munin22:46:081
5116993412,3cyclictest11209-21uptime01:41:281
5116993411,4cyclictest29017-21expr02:01:121
5116993411,3cyclictest28609-21mailstats01:26:201
5123993327,3cyclictest33-21ksoftirqd/222:05:512
5123993327,3cyclictest33-21ksoftirqd/222:05:512
511699337,9cyclictest0-21swapper/100:32:031
511699336,9cyclictest0-21swapper/100:05:311
5116993312,3cyclictest29128-21diskmemload00:09:021
5116993311,4cyclictest29676-21/usr/sbin/munin23:16:151
5112993326,4cyclictest23582-21cron21:55:510
5112993326,4cyclictest233-21systemd-journal22:10:290
5112993326,4cyclictest233-21systemd-journal22:10:290
106891330,1ptp4l401ktimersoftd/321:37:413
106891330,1ptp4l401ktimersoftd/300:16:593
511699326,8cyclictest0-21swapper/100:49:541
511699322,7cyclictest31019-21apt-get22:11:041
5116993212,4cyclictest2574-21timerandwakeup00:26:231
5116993212,3cyclictest24428-21if_enp1s021:56:081
5116993211,3cyclictest26827-21grep02:31:171
511699320,17cyclictest0-21swapper/101:39:571
511699320,17cyclictest0-21swapper/101:39:571
511699320,14cyclictest19227-21ssh00:44:311
106891320,1ptp4l401ktimersoftd/322:26:093
106891320,1ptp4l401ktimersoftd/322:11:173
106891320,1ptp4l401ktimersoftd/322:00:253
106891320,0ptp4l401ktimersoftd/322:41:053
512399317,16cyclictest2650-21ssh01:01:102
5123993125,3cyclictest33-21ksoftirqd/202:05:572
299882310,2sleep00-21swapper/002:34:310
204352310,2sleep00-21swapper/022:56:100
106891310,1ptp4l401ktimersoftd/323:13:313
106891310,1ptp4l401ktimersoftd/322:52:163
106891310,1ptp4l401ktimersoftd/321:19:023
5123993024,3cyclictest33-21ksoftirqd/223:36:122
5123993024,3cyclictest33-21ksoftirqd/221:16:102
5116993020,6cyclictest25-21ksoftirqd/102:26:101
43222305,10sleep10-21swapper/121:11:271
5116992911,3cyclictest12984-21switchtime21:31:181
45662296,10sleep00-21swapper/021:11:300
191332290,5sleep019135-21cpu01:51:100
106891290,1ptp4l401ktimersoftd/321:51:103
106891290,1ptp4l401ktimersoftd/300:12:283
512399285,14cyclictest12402-21ssh01:11:082
5123992821,5cyclictest33-21ksoftirqd/223:21:182
5123992814,6cyclictest33-21ksoftirqd/222:46:042
5112992822,3cyclictest9-21ksoftirqd/002:41:100
5123992721,3cyclictest33-21ksoftirqd/222:36:082
5123992721,3cyclictest33-21ksoftirqd/202:35:582
5123992721,3cyclictest33-21ksoftirqd/200:34:392
5123992721,3cyclictest33-21ksoftirqd/200:16:132
5123992720,4cyclictest33-21ksoftirqd/222:26:452
5123992720,4cyclictest33-21ksoftirqd/222:17:542
5112992720,4cyclictest9-21ksoftirqd/022:40:040
5112992715,7cyclictest101ktimersoftd/002:36:100
227182270,2sleep20-21swapper/202:26:262
106891270,1ptp4l401ktimersoftd/321:32:153
106891270,10ptp4l401ktimersoftd/321:28:293
63442260,4sleep0101ktimersoftd/022:26:110
5123992621,3cyclictest33-21ksoftirqd/223:26:072
5123992621,3cyclictest33-21ksoftirqd/222:56:082
5123992621,3cyclictest33-21ksoftirqd/221:51:202
5123992620,3cyclictest33-21ksoftirqd/222:54:002
5123992620,3cyclictest33-21ksoftirqd/221:20:552
5123992620,3cyclictest33-21ksoftirqd/202:11:172
5123992620,3cyclictest33-21ksoftirqd/202:06:162
5123992619,4cyclictest33-21ksoftirqd/223:16:122
5123992619,4cyclictest33-21ksoftirqd/200:11:122
511299265,14cyclictest9391-21ssh01:41:110
5112992620,3cyclictest9-21ksoftirqd/000:55:560
5112992615,7cyclictest29128-21diskmemload01:21:000
321432260,2sleep20-21swapper/202:36:172
219372260,2sleep00-21swapper/000:13:420
106891260,0ptp4l401ktimersoftd/321:44:193
5129992518,4cyclictest41-21ksoftirqd/322:15:583
512399253,18cyclictest20588-21cut00:46:092
512399253,12cyclictest4519-21ssh01:36:092
512399253,12cyclictest4519-21ssh01:36:092
5123992520,3cyclictest33-21ksoftirqd/202:16:172
5123992520,3cyclictest33-21ksoftirqd/201:51:132
5123992519,3cyclictest33-21ksoftirqd/223:41:132
5123992519,3cyclictest33-21ksoftirqd/222:15:522
5123992519,3cyclictest33-21ksoftirqd/201:58:152
5123992519,3cyclictest33-21ksoftirqd/200:41:102
5123992519,3cyclictest33-21ksoftirqd/200:06:072
5123992518,4cyclictest33-21ksoftirqd/223:08:082
5123992518,4cyclictest33-21ksoftirqd/222:33:432
5123992518,4cyclictest14386-21tr01:46:102
5123992515,6cyclictest13423-21processes23:31:182
511699255,3cyclictest0-21swapper/121:26:101
5116992519,4cyclictest25-21ksoftirqd/100:16:411
5116992518,4cyclictest25-21ksoftirqd/122:57:191
5116992513,9cyclictest0-21swapper/123:41:071
5112992519,3cyclictest9-21ksoftirqd/022:43:170
5112992519,3cyclictest9-21ksoftirqd/021:26:320
5112992518,4cyclictest9-21ksoftirqd/023:08:140
5112992518,4cyclictest9-21ksoftirqd/021:23:000
106891250,1ptp4l401ktimersoftd/322:57:373
106891250,1ptp4l401ktimersoftd/322:36:043
5123992419,3cyclictest33-21ksoftirqd/223:55:542
5123992419,3cyclictest33-21ksoftirqd/221:31:142
5123992419,3cyclictest33-21ksoftirqd/202:45:332
5123992418,3cyclictest33-21ksoftirqd/223:05:542
5123992418,3cyclictest33-21ksoftirqd/200:00:542
5123992417,4cyclictest33-21ksoftirqd/222:44:232
5123992417,4cyclictest33-21ksoftirqd/221:41:282
5116992417,4cyclictest25-21ksoftirqd/122:44:421
5116992417,4cyclictest25-21ksoftirqd/121:48:541
511299244,12cyclictest31672-21ssh23:51:040
511299244,12cyclictest23632-21ssh00:16:060
511299243,12cyclictest20483-21ssh00:46:070
5112992419,3cyclictest9-21ksoftirqd/000:09:570
5112992418,4cyclictest9-21ksoftirqd/022:49:510
5112992417,4cyclictest9-21ksoftirqd/022:51:040
5112992417,4cyclictest7626-21cat21:20:510
106891240,1ptp4l401ktimersoftd/322:46:043
106891240,0ptp4l401ktimersoftd/322:25:493
93162230,5sleep2321ktimersoftd/200:01:122
64112230,4sleep1511699cyclictest23:57:091
512399234,2cyclictest121rcu_preempt01:10:562
5123992318,3cyclictest33-21ksoftirqd/201:45:572
5123992317,3cyclictest33-21ksoftirqd/201:25:562
5123992317,3cyclictest16477-21grep02:21:092
5123992316,4cyclictest33-21ksoftirqd/223:13:262
5123992316,4cyclictest33-21ksoftirqd/200:51:582
5116992317,4cyclictest7094-21sh01:05:561
5116992316,4cyclictest12787-21ssh00:36:481
511699231,20cyclictest0-21swapper/101:31:171
511699231,20cyclictest0-21swapper/101:31:171
106891230,1ptp4l401ktimersoftd/323:01:103
5123992218,3cyclictest33-21ksoftirqd/201:26:552
5123992217,3cyclictest33-21ksoftirqd/222:21:072
5123992217,3cyclictest33-21ksoftirqd/221:46:082
5123992216,3cyclictest33-21ksoftirqd/221:36:102
5123992215,4cyclictest33-21ksoftirqd/200:36:012
5123992210,3cyclictest321ktimersoftd/201:16:082
5116992217,3cyclictest25-21ksoftirqd/121:19:271
5116992216,3cyclictest25-21ksoftirqd/122:34:511
5116992216,3cyclictest25-21ksoftirqd/122:26:291
5116992216,3cyclictest25-21ksoftirqd/122:06:561
5116992216,3cyclictest25-21ksoftirqd/122:06:561
5116992215,4cyclictest25-21ksoftirqd/122:18:571
5116992215,4cyclictest25-21ksoftirqd/121:45:171
5116992215,4cyclictest11312-21ssh02:16:021
5112992216,4cyclictest9-21ksoftirqd/021:47:040
5112992214,5cyclictest29946-21sh00:21:190
5123992115,3cyclictest33-21ksoftirqd/200:56:222
5116992116,3cyclictest8471-21ssh02:11:461
5116992115,3cyclictest7911-21irqrtprio23:26:121
5116992115,3cyclictest25-21ksoftirqd/121:21:141
5116992115,3cyclictest21893-21grep21:51:071
5116992114,4cyclictest26186-21/usr/sbin/munin22:01:211
5116992114,4cyclictest26186-21/usr/sbin/munin22:01:211
511699211,18cyclictest0-21swapper/100:21:171
511299212,10cyclictest7187-21ssh23:26:050
5112992115,4cyclictest9-21ksoftirqd/022:15:070
5112992115,3cyclictest9-21ksoftirqd/001:00:390
5112992115,3cyclictest7947-21grep01:06:120
5112992115,3cyclictest12316-21/usr/sbin/munin01:11:110
511299211,2cyclictest0-21swapper/021:41:560
207202211,16sleep00-21swapper/023:39:350
5123992015,3cyclictest33-21ksoftirqd/221:26:092
5123992015,3cyclictest33-21ksoftirqd/200:22:332
5123992013,4cyclictest33-21ksoftirqd/222:07:142
5123992013,4cyclictest33-21ksoftirqd/222:07:142
511699207,10cyclictest19029-21acpi01:51:091
5116992015,3cyclictest28594-21ssh00:53:521
5116992014,4cyclictest22240-21/usr/sbin/munin01:21:151
5116992014,3cyclictest25-21ksoftirqd/122:54:411
5116992014,3cyclictest18900-21tr00:11:091
5116992014,3cyclictest12110-21awk22:36:211
511699201,17cyclictest0-21swapper/123:32:581
511699200,4cyclictest14061-21ssh01:45:571
511299207,9cyclictest0-21swapper/023:21:100
511299203,5cyclictest32085-21apt-get01:31:110
511299203,5cyclictest32085-21apt-get01:31:110
5112992015,3cyclictest9-21ksoftirqd/002:20:330
511299201,4cyclictest12747-21ssh00:36:440
5112992014,4cyclictest9-21ksoftirqd/022:33:290
5112992014,4cyclictest9-21ksoftirqd/021:38:530
5112992014,4cyclictest31216-21sh02:02:210
5112992014,3cyclictest9-21ksoftirqd/023:01:050
5112992014,3cyclictest9-21ksoftirqd/022:03:340
5112992014,3cyclictest9-21ksoftirqd/022:03:340
5112992014,3cyclictest3252-21/usr/sbin/munin22:21:090
5112992014,3cyclictest1055-21runrttasks23:56:270
5112992013,4cyclictest6223-21cut02:10:580
5112992013,4cyclictest25257-21cut01:56:190
5112992013,4cyclictest23833-21basename21:56:020
5112992013,4cyclictest13681-21cat23:31:230
5112992013,4cyclictest1055-21runrttasks01:28:500
5112992013,4cyclictest10307-21idleruntime-cro00:35:550
5112992012,5cyclictest27144-21sh23:46:080
5112992012,5cyclictest16038-21gltestperf00:41:120
5112992010,7cyclictest30029-21df23:16:080
5123991913,3cyclictest23819-21/usr/sbin/munin21:56:062
512399191,15cyclictest26991-21cat23:46:062
5116991914,3cyclictest26755-21sh23:10:531
5116991913,4cyclictest5531-21who02:41:281
5116991912,4cyclictest5493-21date22:25:521
5112991913,4cyclictest951-21apt-get22:16:050
5112991913,3cyclictest14525-21sh01:46:120
5112991913,3cyclictest11863-21sh00:03:080
5112991913,3cyclictest11542-21/usr/sbin/munin21:31:080
5112991912,4cyclictest29128-21diskmemload02:28:080
5112991912,4cyclictest1472-21gltestperf00:26:100
5116991812,4cyclictest31610-21fschecks_time02:36:141
511299181,2cyclictest0-21swapper/001:35:570
511299181,2cyclictest0-21swapper/001:35:570
5112991812,3cyclictest28163-21open_inodes23:11:160
5112991812,3cyclictest18504-21proc_pri01:16:190
5112991812,3cyclictest16524-21expr02:21:100
511299178,5cyclictest22635-21sed23:41:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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