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2026-07-26 - 10:26
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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 highest latencies:
System rackbslot6.osadl.org (updated Sun Jul 26, 2026 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
90221850,4sleep21551999cyclictest01:18:132
1068911050,4ptp4l401ktimersoftd/321:10:013
43802750,1sleep10-21swapper/101:20:491
106891690,10ptp4l401ktimersoftd/300:03:553
306662640,1sleep20-21swapper/201:49:082
264502630,5sleep21551999cyclictest01:10:182
322662610,5sleep01550799cyclictest02:23:230
322662610,5sleep01550799cyclictest02:23:230
106891580,1ptp4l401ktimersoftd/322:15:153
106891570,2ptp4l12711-21kworker/3:200:36:273
85592550,2sleep20-21swapper/223:14:472
238382550,2sleep10-21swapper/101:40:441
216422520,2sleep10-21swapper/123:27:111
152612484,32sleep20-21swapper/221:12:512
139792470,6sleep10-21swapper/121:10:021
106891470,1ptp4l401ktimersoftd/323:28:103
106891460,2ptp4l9571-21kworker/3:021:38:023
106891460,1ptp4l401ktimersoftd/323:43:123
15528994536,4cyclictest41-21ksoftirqd/301:15:013
1527924421,11sleep09-21ksoftirqd/021:13:050
106891430,1ptp4l401ktimersoftd/302:17:383
159822400,2sleep30-21swapper/323:55:033
15519993918,18cyclictest24154-21grep02:15:072
106891390,1ptp4l401ktimersoftd/323:44:493
106891390,1ptp4l401ktimersoftd/301:32:333
106891390,1ptp4l401ktimersoftd/301:07:313
214952380,5sleep233-21ksoftirqd/201:05:122
15519993815,20cyclictest11463-21sh01:29:392
15519993814,20cyclictest3464-21sh00:15:052
106891380,2ptp4l5816-21kworker/3:023:39:223
106891380,2ptp4l12711-21kworker/3:202:35:093
106891380,1ptp4l401ktimersoftd/323:53:413
106891380,1ptp4l401ktimersoftd/302:31:483
106891380,1ptp4l401ktimersoftd/302:00:383
106891380,1ptp4l401ktimersoftd/301:45:053
106891380,1ptp4l401ktimersoftd/301:40:233
106891380,1ptp4l401ktimersoftd/301:36:523
106891380,1ptp4l401ktimersoftd/301:02:253
106891380,1ptp4l401ktimersoftd/300:24:253
106891380,1ptp4l401ktimersoftd/300:16:283
106891380,1ptp4l401ktimersoftd/300:13:523
106891370,1ptp4l401ktimersoftd/323:21:143
106891370,1ptp4l401ktimersoftd/302:27:593
106891370,1ptp4l401ktimersoftd/302:27:593
106891370,1ptp4l401ktimersoftd/302:06:353
106891370,1ptp4l401ktimersoftd/301:51:313
106891370,1ptp4l401ktimersoftd/301:25:233
106891370,1ptp4l401ktimersoftd/301:12:213
106891370,1ptp4l401ktimersoftd/300:47:463
106891370,12ptp4l401ktimersoftd/300:55:183
106891370,0ptp4l401ktimersoftd/301:22:063
15528993629,3cyclictest6057-21cron23:09:463
1551999362,5cyclictest0-21swapper/201:20:042
15519993613,19cyclictest31405-21/usr/sbin/munin01:50:072
15519993613,19cyclictest18875-21cstates23:25:022
15519993610,3cyclictest21376-21cat21:24:582
15519993610,3cyclictest2104-21expr02:25:112
15519993610,3cyclictest2104-21expr02:25:112
15513993623,6cyclictest25-21ksoftirqd/102:20:051
15513993623,6cyclictest25-21ksoftirqd/102:20:051
106891360,2ptp4l12711-21kworker/3:200:41:453
106891360,2ptp4l12711-21kworker/3:200:41:453
106891360,1ptp4l401ktimersoftd/323:18:093
106891360,1ptp4l401ktimersoftd/300:29:283
106891360,0ptp4l401ktimersoftd/301:56:413
106891360,0ptp4l401ktimersoftd/300:09:203
15519993510,4cyclictest16926-21turbostat22:24:462
15519993510,3cyclictest15949-21expr02:40:072
106891350,1ptp4l401ktimersoftd/322:20:193
106891350,1ptp4l401ktimersoftd/300:51:133
1551999349,4cyclictest639-21cron00:59:492
1551999348,4cyclictest1997-21ls21:50:152
15519993413,18cyclictest5026-21sh23:44:002
15519993413,18cyclictest22490-21sh00:34:522
15519993412,5cyclictest47150irq/102-ens3-Tx00:24:092
106891340,2ptp4l9571-21kworker/3:022:52:143
106891340,1ptp4l401ktimersoftd/323:31:593
106891340,1ptp4l401ktimersoftd/321:30:103
106891340,0ptp4l401ktimersoftd/302:09:583
1551999338,3cyclictest10694-21cat22:10:042
15519993319,11cyclictest33-21ksoftirqd/222:07:392
1551999331,4cyclictest32189-21ssh02:23:162
1551999331,4cyclictest32189-21ssh02:23:162
15519993313,17cyclictest8650-21sh23:46:472
15519993313,17cyclictest12557-21sh23:18:272
15519993312,3cyclictest20498-21sh00:31:492
1551999331,12cyclictest15360-21snmp_o5powerctl02:05:192
1551999331,11cyclictest22127-21cat22:34:582
106891330,2ptp4l9571-21kworker/3:022:38:453
106891330,1ptp4l401ktimersoftd/302:44:333
106891330,11ptp4l401ktimersoftd/300:33:513
1551999329,3cyclictest20911-21sh00:00:022
1551999324,7cyclictest23509-21unixbench_multi01:40:212
15519993215,14cyclictest33-21ksoftirqd/221:38:402
15519993214,15cyclictest33-21ksoftirqd/222:53:472
15519993211,3cyclictest27933-21ls22:45:082
15519993211,3cyclictest1456-21sh00:12:582
15519993210,4cyclictest19174-21fschecks_time02:10:102
15519993210,3cyclictest29731-21sh00:40:352
15519993210,3cyclictest29731-21sh00:40:352
106891320,1ptp4l401ktimersoftd/322:40:173
106891320,1ptp4l401ktimersoftd/321:55:283
1551999319,3cyclictest8427-21diskmemload23:50:002
1551999318,4cyclictest1581-21mailstats00:45:122
1551999318,3cyclictest720-21cat22:55:162
1551999318,3cyclictest28052-21sh23:34:432
1551999318,3cyclictest11988-21needreboot02:35:142
1551999313,5cyclictest19822-21apt-get22:29:592
1551999311,4cyclictest27034-21snmp_o5powerctl00:05:152
1551999311,3cyclictest0-21swapper/200:53:102
1551999310,3cyclictest264032sleep222:42:112
15507993125,4cyclictest9-21ksoftirqd/000:54:540
15507993125,3cyclictest9-21ksoftirqd/000:29:490
106891310,1ptp4l401ktimersoftd/322:28:213
106891310,1ptp4l401ktimersoftd/322:08:523
106891310,1ptp4l401ktimersoftd/321:50:423
106891310,1ptp4l401ktimersoftd/321:40:003
106891310,1ptp4l401ktimersoftd/321:26:303
1551999309,3cyclictest30354-21ssh23:35:192
1551999308,3cyclictest354-21latency_hist21:49:452
1551999308,3cyclictest18880-21cpuspeed_turbos21:19:582
1551999305,5cyclictest24334-21irqrtprio21:30:042
1551999301,9cyclictest9266-21gltestperf02:00:082
1551999300,10cyclictest15824-21rm00:27:322
15513993025,3cyclictest25-21ksoftirqd/102:44:521
15513993024,3cyclictest25-21ksoftirqd/100:39:491
106891300,1ptp4l401ktimersoftd/322:14:463
198062290,4sleep019755-21ssh23:25:090
1551999299,3cyclictest21353-21latency_hist01:39:512
1551999298,4cyclictest47150irq/102-ens3-Tx23:20:142
1551999297,3cyclictest4479-21sh01:55:082
1551999291,11cyclictest13721-21ptp4l-jitter22:15:102
15519992910,3cyclictest30487-21latency_hist21:44:452
1551399294,14cyclictest3945-21ssh01:55:041
15513992924,3cyclictest25-21ksoftirqd/102:24:521
15513992924,3cyclictest25-21ksoftirqd/102:24:521
15513992923,3cyclictest25-21ksoftirqd/100:59:541
120902290,2sleep00-21swapper/002:35:150
106891290,0ptp4l401ktimersoftd/321:24:343
1551999289,3cyclictest3356-21uniq21:55:012
1551999284,4cyclictest0-21swapper/201:00:182
1551999282,6cyclictest6703-21snmp_o5powerctl22:00:142
1551999281,10cyclictest18301-21ssh23:56:302
1551399287,13cyclictest47050irq/101-ens3-Tx00:15:001
15513992823,3cyclictest25-21ksoftirqd/100:54:501
15513992822,3cyclictest25-21ksoftirqd/100:04:481
1550799284,12cyclictest21206-21snmpd00:25:020
106891280,1ptp4l401ktimersoftd/322:47:483
106891280,0ptp4l401ktimersoftd/322:01:193
1551999278,4cyclictest5233-21ptp4l-jitter23:05:102
1551999270,3cyclictest8427-21diskmemload02:31:012
15513992722,3cyclictest25-21ksoftirqd/121:19:441
15513992722,3cyclictest25-21ksoftirqd/102:00:101
15513992722,3cyclictest25-21ksoftirqd/101:10:091
15513992721,4cyclictest25-21ksoftirqd/123:40:021
15513992721,4cyclictest25-21ksoftirqd/101:30:081
15513992721,3cyclictest25-21ksoftirqd/123:10:061
15513992720,5cyclictest25-21ksoftirqd/123:45:161
15507992722,3cyclictest9-21ksoftirqd/001:06:510
1550799272,15cyclictest8427-21diskmemload00:20:010
15507992720,4cyclictest9-21ksoftirqd/022:17:200
15507992716,6cyclictest9-21ksoftirqd/023:29:590
106891270,1ptp4l401ktimersoftd/323:04:303
106891270,1ptp4l401ktimersoftd/323:04:303
106891270,1ptp4l401ktimersoftd/321:49:113
15519992619,4cyclictest33-21ksoftirqd/222:28:022
1551399264,19cyclictest12934-21sed22:15:031
15513992621,3cyclictest25-21ksoftirqd/123:50:111
15513992621,3cyclictest25-21ksoftirqd/122:49:461
15513992621,3cyclictest25-21ksoftirqd/102:19:511
15513992621,3cyclictest25-21ksoftirqd/101:35:201
15513992620,3cyclictest25-21ksoftirqd/121:51:401
15513992620,3cyclictest25-21ksoftirqd/100:14:481
15513992615,5cyclictest25-21ksoftirqd/100:30:011
1550799262,13cyclictest1130-21runrttasks02:25:040
1550799262,13cyclictest1130-21runrttasks02:25:040
15507992620,3cyclictest9-21ksoftirqd/021:42:020
15507992620,3cyclictest9-21ksoftirqd/001:15:140
15507992619,4cyclictest9-21ksoftirqd/023:06:420
15528992520,3cyclictest41-21ksoftirqd/322:55:133
15528992518,4cyclictest41-21ksoftirqd/321:18:383
1551999257,4cyclictest33-21ksoftirqd/221:19:332
15513992520,3cyclictest25-21ksoftirqd/123:35:121
15513992520,3cyclictest25-21ksoftirqd/123:24:471
15513992520,3cyclictest25-21ksoftirqd/121:35:001
15513992520,3cyclictest25-21ksoftirqd/121:29:441
15513992520,3cyclictest25-21ksoftirqd/102:10:091
15513992520,3cyclictest25-21ksoftirqd/100:29:491
15513992520,3cyclictest25-21ksoftirqd/100:20:011
15507992519,3cyclictest9-21ksoftirqd/022:06:400
15507992519,3cyclictest9-21ksoftirqd/021:27:450
15507992519,3cyclictest9-21ksoftirqd/021:22:160
15507992518,4cyclictest3332-21ssh01:54:320
106891250,1ptp4l401ktimersoftd/323:10:003
1551399243,6cyclictest121rcu_preempt01:08:481
15513992420,3cyclictest25-21ksoftirqd/100:40:031
15513992420,3cyclictest25-21ksoftirqd/100:40:031
15513992419,3cyclictest25-21ksoftirqd/123:00:041
15513992419,3cyclictest25-21ksoftirqd/123:00:041
15513992419,3cyclictest25-21ksoftirqd/121:45:201
15513992419,3cyclictest25-21ksoftirqd/101:50:101
15513992419,3cyclictest25-21ksoftirqd/101:25:191
15513992419,3cyclictest25-21ksoftirqd/100:54:501
15513992418,3cyclictest25-21ksoftirqd/122:54:471
15513992417,4cyclictest25-21ksoftirqd/123:09:081
15513992417,4cyclictest25-21ksoftirqd/122:33:271
15507992419,3cyclictest9-21ksoftirqd/021:36:120
15507992418,3cyclictest9-21ksoftirqd/023:11:360
15507992418,3cyclictest9-21ksoftirqd/022:57:510
15507992418,3cyclictest9-21ksoftirqd/022:34:580
15507992418,3cyclictest9-21ksoftirqd/021:59:590
15507992418,3cyclictest9-21ksoftirqd/021:54:360
15507992418,3cyclictest9-21ksoftirqd/002:04:550
15507992418,3cyclictest9-21ksoftirqd/000:40:450
15507992418,3cyclictest9-21ksoftirqd/000:40:450
1550799241,20cyclictest0-21swapper/022:45:110
106891240,1ptp4l401ktimersoftd/322:30:023
106891240,1ptp4l401ktimersoftd/302:20:103
106891240,1ptp4l401ktimersoftd/302:20:103
15513992317,4cyclictest25-21ksoftirqd/122:57:161
15513992317,3cyclictest25-21ksoftirqd/121:44:451
15513992317,3cyclictest25-21ksoftirqd/102:05:231
15513992317,3cyclictest25-21ksoftirqd/101:45:101
15513992316,4cyclictest25-21ksoftirqd/123:55:051
15513992316,4cyclictest25-21ksoftirqd/122:37:241
1550799233,13cyclictest1010-21ssh23:40:010
15507992318,3cyclictest9-21ksoftirqd/001:35:040
15507992317,3cyclictest9-21ksoftirqd/023:45:160
15507992317,3cyclictest9-21ksoftirqd/021:31:190
15513992215,4cyclictest25-21ksoftirqd/123:19:121
15513992215,4cyclictest25-21ksoftirqd/122:41:141
15513992215,4cyclictest25-21ksoftirqd/122:04:411
15513992215,4cyclictest25-21ksoftirqd/102:30:111
15507992217,3cyclictest9-21ksoftirqd/022:24:460
15507992216,3cyclictest9-21ksoftirqd/022:52:210
15507992216,3cyclictest9-21ksoftirqd/021:18:550
15507992216,3cyclictest9-21ksoftirqd/002:13:280
1550799221,4cyclictest4327-21snmp_o5powerctl21:55:100
1550799221,3cyclictest12315-21snmp_o5powerctl23:50:160
1550799221,18cyclictest0-21swapper/021:45:180
1550799220,3cyclictest8427-21diskmemload02:32:400
15513992116,3cyclictest25-21ksoftirqd/100:45:081
15513992116,3cyclictest25-21ksoftirqd/100:08:581
15513992115,3cyclictest25-21ksoftirqd/122:14:461
15513992115,3cyclictest25-21ksoftirqd/121:55:321
15513992115,3cyclictest25-21ksoftirqd/121:19:471
15507992116,3cyclictest9-21ksoftirqd/001:14:500
15507992116,3cyclictest9-21ksoftirqd/000:10:460
15507992115,4cyclictest9-21ksoftirqd/022:10:460
15507992115,3cyclictest9-21ksoftirqd/022:42:530
15507992115,3cyclictest9-21ksoftirqd/022:25:540
15507992115,3cyclictest9-21ksoftirqd/001:47:380
15507992115,3cyclictest9-21ksoftirqd/001:41:400
15507992114,4cyclictest3849-21/usr/sbin/munin01:55:110
15507992114,4cyclictest18265-21latency_hist23:24:470
1550799211,3cyclictest27677-21ssh02:18:530
1550799211,18cyclictest23070-21ssh00:01:170
1550799211,17cyclictest15672-21/usr/sbin/munin23:55:100
2712222013,3sleep125-21ksoftirqd/123:33:101
15519992015,3cyclictest33-21ksoftirqd/223:03:592
15519992015,3cyclictest33-21ksoftirqd/223:03:592
15519992013,4cyclictest13346-21sendmail_mailst01:30:122
15513992015,3cyclictest25-21ksoftirqd/121:30:041
15513992014,3cyclictest25-21ksoftirqd/122:05:211
15513992013,4cyclictest31247-21sh01:15:141
15507992014,4cyclictest15684-21acpi02:40:040
15507992014,3cyclictest9-21ksoftirqd/023:01:550
15507992014,3cyclictest9-21ksoftirqd/023:01:550
15507992014,3cyclictest6430-21tr00:50:130
15507992014,3cyclictest21323-21timerwakeupswit22:30:160
15507992014,3cyclictest1556-21sendmail_mailst00:45:120
1550799201,3cyclictest10797-21ssh23:15:280
15507992013,4cyclictest8427-21diskmemload00:18:390
15507992013,4cyclictest8427-21diskmemload00:05:580
15507992013,4cyclictest29816-21ptp4l23:35:110
1550799201,2cyclictest0-21swapper/001:20:020
1550799201,17cyclictest11352-21ssh01:29:270
15513991913,3cyclictest18097-21interrupts22:25:051
15513991912,4cyclictest10789-21/usr/sbin/munin02:35:141
1550799191,3cyclictest16309-21ssh01:00:100
15507991913,3cyclictest8427-21diskmemload00:35:080
1550799191,2cyclictest0-21swapper/001:31:070
1550799191,16cyclictest10644-21ssh02:00:210
15513991813,3cyclictest25-21ksoftirqd/122:24:471
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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