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2026-07-18 - 05:17
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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 highest latencies:
System rackbslot6.osadl.org (updated Sat Jul 18, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2925021710,1sleep00-21swapper/001:27:120
1040521700,5sleep02893899cyclictest01:40:490
2728421670,4sleep12894499cyclictest23:15:081
3020521650,5sleep32895499cyclictest02:00:523
2487221650,5sleep22894999cyclictest22:05:442
1799121480,3sleep02893899cyclictest01:49:490
1068911030,3ptp4l401ktimersoftd/321:06:373
159542770,3sleep12894499cyclictest00:08:041
269542700,4sleep20-21swapper/221:05:322
265792700,4sleep22894999cyclictest23:13:572
16862700,5sleep22894999cyclictest01:00:242
106891640,1ptp4l401ktimersoftd/302:38:273
267902594,40sleep00-21swapper/021:05:310
28944995847,6cyclictest25-21ksoftirqd/122:05:321
106891570,1ptp4l401ktimersoftd/300:09:093
299782560,2sleep10-21swapper/100:21:491
291922540,3sleep2311rcuc/202:00:432
28944995443,5cyclictest25-21ksoftirqd/122:50:351
28944995341,5cyclictest25-21ksoftirqd/121:25:311
106891510,1ptp4l401ktimersoftd/301:29:323
106891500,1ptp4l401ktimersoftd/301:59:333
28944994937,6cyclictest25-21ksoftirqd/123:40:331
106891490,1ptp4l401ktimersoftd/301:01:373
28944994833,3cyclictest25-21ksoftirqd/121:40:481
28944994736,6cyclictest25-21ksoftirqd/123:20:341
28944994723,4cyclictest25-21ksoftirqd/101:45:431
28944994722,4cyclictest25-21ksoftirqd/123:55:361
28944994715,8cyclictest25-21ksoftirqd/100:40:431
106891470,13ptp4l11792-21kworker/3:101:24:393
28944994635,3cyclictest25-21ksoftirqd/100:50:371
28944994622,4cyclictest25-21ksoftirqd/102:20:471
28944994621,4cyclictest25-21ksoftirqd/121:35:321
106891460,2ptp4l11792-21kworker/3:100:52:553
106891450,2ptp4l4313-21kworker/3:202:12:463
28944994421,4cyclictest25-21ksoftirqd/101:00:451
2894499440,3cyclictest121rcu_preempt02:30:381
28944994336,3cyclictest25-21ksoftirqd/123:15:271
28944994320,3cyclictest25-21ksoftirqd/100:20:241
28944994319,4cyclictest25-21ksoftirqd/121:10:391
28944994319,4cyclictest25-21ksoftirqd/102:05:411
28944994234,4cyclictest25-21ksoftirqd/123:30:281
28944994219,3cyclictest25-21ksoftirqd/102:20:261
28944994218,4cyclictest25-21ksoftirqd/101:15:481
2894499415,7cyclictest25-21ksoftirqd/101:25:421
28944994135,3cyclictest25-21ksoftirqd/102:00:251
28944994134,4cyclictest25-21ksoftirqd/122:55:261
28944994132,4cyclictest25-21ksoftirqd/122:30:321
28944994127,11cyclictest25-21ksoftirqd/123:25:391
28944994118,7cyclictest25-21ksoftirqd/100:35:411
28944994118,4cyclictest25-21ksoftirqd/123:05:491
28944994116,4cyclictest25-21ksoftirqd/100:00:371
28944994112,5cyclictest25-21ksoftirqd/121:55:371
106891410,1ptp4l401ktimersoftd/323:15:413
2894499409,5cyclictest25-21ksoftirqd/101:05:251
28944994029,3cyclictest25-21ksoftirqd/102:30:271
2894499402,3cyclictest25-21ksoftirqd/100:55:421
28944994021,16cyclictest25-21ksoftirqd/121:15:501
28944994016,4cyclictest25-21ksoftirqd/123:54:391
28944994013,5cyclictest25-21ksoftirqd/121:45:481
2894499393,3cyclictest121rcu_preempt01:40:251
28944993929,5cyclictest25-21ksoftirqd/123:00:351
28944993925,11cyclictest25-21ksoftirqd/101:40:471
28944993920,6cyclictest25-21ksoftirqd/102:35:551
28944993918,7cyclictest25-21ksoftirqd/101:24:561
28944993916,4cyclictest25-21ksoftirqd/101:34:291
106891390,1ptp4l401ktimersoftd/322:30:213
106891390,1ptp4l401ktimersoftd/300:39:403
28944993834,2cyclictest25-21ksoftirqd/102:00:301
28944993820,6cyclictest25-21ksoftirqd/122:10:351
28944993816,4cyclictest25-21ksoftirqd/100:10:521
28944993815,4cyclictest25-21ksoftirqd/122:35:391
28944993810,8cyclictest25-21ksoftirqd/121:30:411
106891380,3ptp4l11792-21kworker/3:101:42:213
106891380,1ptp4l401ktimersoftd/323:49:073
106891380,1ptp4l401ktimersoftd/323:38:473
106891380,1ptp4l401ktimersoftd/323:29:283
106891380,1ptp4l401ktimersoftd/302:24:503
106891380,1ptp4l401ktimersoftd/301:47:003
106891380,1ptp4l401ktimersoftd/301:31:483
106891380,1ptp4l401ktimersoftd/301:18:133
106891380,1ptp4l401ktimersoftd/301:05:433
106891380,1ptp4l401ktimersoftd/300:58:373
106891380,1ptp4l401ktimersoftd/300:30:593
106891380,1ptp4l401ktimersoftd/300:18:483
28944993727,3cyclictest25-21ksoftirqd/100:45:431
28944993713,4cyclictest25-21ksoftirqd/101:50:551
28944993713,4cyclictest25-21ksoftirqd/101:50:551
106891370,1ptp4l401ktimersoftd/323:55:103
106891370,1ptp4l401ktimersoftd/323:14:093
106891370,1ptp4l401ktimersoftd/321:36:083
106891370,1ptp4l401ktimersoftd/321:11:353
106891370,1ptp4l401ktimersoftd/302:27:213
106891370,1ptp4l401ktimersoftd/302:19:173
106891370,1ptp4l401ktimersoftd/301:52:053
106891370,1ptp4l401ktimersoftd/301:52:053
106891370,1ptp4l401ktimersoftd/301:36:103
106891370,1ptp4l401ktimersoftd/301:10:273
106891370,1ptp4l401ktimersoftd/300:27:053
106891370,1ptp4l401ktimersoftd/300:10:313
106891370,1ptp4l401ktimersoftd/300:03:583
106891370,0ptp4l401ktimersoftd/323:33:073
2894499365,9cyclictest25-21ksoftirqd/122:40:351
28944993630,3cyclictest25-21ksoftirqd/102:10:471
28944993628,3cyclictest25-21ksoftirqd/100:25:531
28944993625,3cyclictest25-21ksoftirqd/122:00:361
28944993611,4cyclictest25-21ksoftirqd/101:10:391
2854723615,11sleep125-21ksoftirqd/121:06:321
106891360,1ptp4l401ktimersoftd/323:57:023
106891360,1ptp4l401ktimersoftd/323:22:083
106891360,1ptp4l401ktimersoftd/322:27:543
106891360,1ptp4l401ktimersoftd/321:16:163
106891360,1ptp4l401ktimersoftd/300:46:053
106891360,1ptp4l401ktimersoftd/300:23:443
2894499358,10cyclictest25-21ksoftirqd/122:25:421
2894499358,10cyclictest25-21ksoftirqd/122:25:421
28944993529,3cyclictest25-21ksoftirqd/122:20:251
28944993529,3cyclictest25-21ksoftirqd/121:50:361
28944993529,3cyclictest25-21ksoftirqd/100:30:421
2894499351,6cyclictest25-21ksoftirqd/123:45:361
28944993511,9cyclictest25-21ksoftirqd/122:20:211
28944993511,9cyclictest25-21ksoftirqd/122:20:211
28944993426,3cyclictest25-21ksoftirqd/121:20:371
28944993422,3cyclictest25-21ksoftirqd/123:35:501
28944993411,4cyclictest25-21ksoftirqd/122:50:221
106891340,2ptp4l4924-21kworker/3:022:10:083
106891340,2ptp4l4924-21kworker/3:021:44:093
106891340,2ptp4l22189-21kworker/3:002:31:193
106891340,2ptp4l11792-21kworker/3:102:05:583
106891340,1ptp4l401ktimersoftd/323:41:303
106891330,1ptp4l401ktimersoftd/323:05:233
106891330,1ptp4l401ktimersoftd/322:54:343
71402320,2sleep20-21swapper/201:38:022
28954993225,4cyclictest644-21dbus-daemon23:00:213
28949993227,3cyclictest33-21ksoftirqd/223:35:382
2894999320,6cyclictest121rcu_preempt01:45:382
106891320,1ptp4l401ktimersoftd/322:32:583
106891320,0ptp4l401ktimersoftd/300:44:393
28949993126,3cyclictest33-21ksoftirqd/223:55:222
28949993124,4cyclictest33-21ksoftirqd/202:00:262
2893899312,18cyclictest2076-21ssh01:00:360
106891310,1ptp4l401ktimersoftd/322:11:253
1452913023,3phc2sys41-21ksoftirqd/321:20:403
106891300,0ptp4l401ktimersoftd/322:15:573
106891300,0ptp4l401ktimersoftd/322:15:573
28949992923,3cyclictest33-21ksoftirqd/222:55:212
106891290,1ptp4l401ktimersoftd/323:04:453
28949992822,3cyclictest33-21ksoftirqd/222:40:212
28949992822,3cyclictest33-21ksoftirqd/202:40:272
28949992822,3cyclictest23102-21kworker/2:122:30:332
28949992821,4cyclictest33-21ksoftirqd/200:15:512
28949992817,9cyclictest29274-21cat21:10:312
28938992823,3cyclictest9-21ksoftirqd/002:15:390
106891280,1ptp4l401ktimersoftd/322:47:223
28949992720,4cyclictest33-21ksoftirqd/221:58:382
28949992720,4cyclictest33-21ksoftirqd/201:10:442
28949992719,5cyclictest3332-21cut23:55:392
28949992718,5cyclictest33-21ksoftirqd/222:45:332
2893899275,12cyclictest7920-21ssh00:00:350
28954992620,3cyclictest41-21ksoftirqd/322:41:153
28949992622,3cyclictest33-21ksoftirqd/202:25:372
28949992621,3cyclictest33-21ksoftirqd/202:10:442
28949992621,3cyclictest33-21ksoftirqd/201:00:402
28949992621,3cyclictest33-21ksoftirqd/200:35:512
28949992621,3cyclictest33-21ksoftirqd/200:30:422
28949992621,3cyclictest33-21ksoftirqd/200:00:382
28949992620,3cyclictest33-21ksoftirqd/202:05:532
28949992620,3cyclictest33-21ksoftirqd/200:40:372
28949992619,4cyclictest33-21ksoftirqd/223:07:192
28949992619,4cyclictest33-21ksoftirqd/221:39:142
28949992619,4cyclictest33-21ksoftirqd/221:29:512
2894999260,3cyclictest121rcu_preempt00:54:112
2893899267,4cyclictest10629-1kworker/u9:000:09:320
28938992621,3cyclictest9-21ksoftirqd/002:25:450
28938992621,3cyclictest9-21ksoftirqd/001:35:390
28938992620,3cyclictest9-21ksoftirqd/022:26:460
28938992620,3cyclictest9-21ksoftirqd/022:26:460
106891260,0ptp4l401ktimersoftd/322:21:353
28954992518,4cyclictest41-21ksoftirqd/322:37:133
28954992518,4cyclictest41-21ksoftirqd/321:57:183
2894999252,8cyclictest21165-21apt-get22:00:302
28949992520,3cyclictest33-21ksoftirqd/222:15:402
28949992520,3cyclictest33-21ksoftirqd/222:15:402
28949992519,3cyclictest33-21ksoftirqd/223:00:222
28949992519,3cyclictest33-21ksoftirqd/201:20:252
28949992518,4cyclictest33-21ksoftirqd/222:21:342
28949992518,4cyclictest33-21ksoftirqd/221:50:442
28949992518,4cyclictest33-21ksoftirqd/221:20:522
28949992518,4cyclictest33-21ksoftirqd/221:16:182
28949992518,4cyclictest33-21ksoftirqd/201:25:542
28949992518,4cyclictest2340-21grep23:20:512
28949992518,4cyclictest1540-21snmp_o5powerctl00:25:512
28949992518,3cyclictest33-21ksoftirqd/223:25:362
28938992520,3cyclictest9-21ksoftirqd/023:15:480
28938992520,3cyclictest9-21ksoftirqd/001:21:140
28938992520,3cyclictest9-21ksoftirqd/000:10:420
28938992519,3cyclictest9-21ksoftirqd/022:09:060
28938992519,3cyclictest9-21ksoftirqd/021:43:220
106891250,1ptp4l401ktimersoftd/321:55:143
106891250,0ptp4l401ktimersoftd/321:49:433
28949992419,3cyclictest33-21ksoftirqd/223:45:432
28949992418,3cyclictest33-21ksoftirqd/222:11:322
28949992418,3cyclictest33-21ksoftirqd/201:55:252
28949992418,3cyclictest33-21ksoftirqd/201:55:252
28949992414,8cyclictest33-21ksoftirqd/202:15:292
28949992414,8cyclictest33-21ksoftirqd/200:05:502
28949992413,9cyclictest33-21ksoftirqd/223:30:382
2893899244,11cyclictest16189-21ssh02:20:380
28938992419,3cyclictest9-21ksoftirqd/000:40:440
28938992418,4cyclictest9-21ksoftirqd/022:47:130
28938992418,3cyclictest9-21ksoftirqd/022:51:070
157192240,2sleep00-21swapper/022:55:360
106891240,1ptp4l401ktimersoftd/322:00:323
106891240,1ptp4l401ktimersoftd/321:30:443
28949992318,3cyclictest33-21ksoftirqd/201:20:382
28949992317,3cyclictest33-21ksoftirqd/222:41:182
28949992317,3cyclictest33-21ksoftirqd/221:30:382
28949992317,3cyclictest33-21ksoftirqd/202:25:032
28949992317,3cyclictest33-21ksoftirqd/200:45:422
28949992317,3cyclictest33-21ksoftirqd/200:15:232
28938992317,3cyclictest9-21ksoftirqd/022:44:260
28938992317,3cyclictest9-21ksoftirqd/022:17:340
28938992317,3cyclictest9-21ksoftirqd/022:17:340
28938992317,3cyclictest9-21ksoftirqd/021:33:420
28938992317,3cyclictest9-21ksoftirqd/021:24:540
28938992317,3cyclictest9-21ksoftirqd/000:17:260
28938992316,4cyclictest9-21ksoftirqd/023:30:360
106891230,1ptp4l401ktimersoftd/321:25:333
28949992217,3cyclictest33-21ksoftirqd/201:30:532
28949992217,3cyclictest33-21ksoftirqd/200:20:412
28949992215,4cyclictest33-21ksoftirqd/221:45:572
2893899227,2cyclictest101ktimersoftd/001:16:030
28938992217,3cyclictest9-21ksoftirqd/022:04:460
28938992217,3cyclictest9-21ksoftirqd/001:57:550
28938992216,3cyclictest9-21ksoftirqd/021:19:170
2893899221,4cyclictest22496-21diskmemload00:23:510
28949992115,3cyclictest33-21ksoftirqd/222:29:272
28949992115,3cyclictest33-21ksoftirqd/222:29:272
28938992116,3cyclictest9-21ksoftirqd/021:50:300
28938992116,3cyclictest9-21ksoftirqd/002:02:410
28938992116,3cyclictest9-21ksoftirqd/000:56:570
28938992115,4cyclictest10214-21cut00:35:380
28938992115,3cyclictest9-21ksoftirqd/022:40:190
28938992115,3cyclictest9-21ksoftirqd/021:47:060
28938992115,3cyclictest9-21ksoftirqd/021:25:270
28938992114,4cyclictest7046-21sh23:59:380
28938992114,4cyclictest24464-21sed00:50:250
28949992015,3cyclictest33-21ksoftirqd/223:40:522
28949992015,3cyclictest33-21ksoftirqd/202:30:412
28949992015,3cyclictest33-21ksoftirqd/201:05:372
28949992014,3cyclictest33-21ksoftirqd/223:15:362
28949992014,3cyclictest17991-21/usr/sbin/munin23:00:522
28949992012,5cyclictest12777-21open_inodes21:40:402
2893899202,6cyclictest1055-21runrttasks02:37:200
28938992015,3cyclictest9-21ksoftirqd/021:39:080
28938992014,3cyclictest9-21ksoftirqd/023:25:420
28938992014,3cyclictest9-21ksoftirqd/023:24:150
28938992014,3cyclictest25953-21apt-config22:10:210
28938992014,3cyclictest25294-21ssh23:45:340
28938992014,3cyclictest20258-21cat23:05:220
28938992013,4cyclictest9-21ksoftirqd/021:58:030
28938992013,4cyclictest21658-21ptp4l23:05:440
28949991914,3cyclictest33-21ksoftirqd/201:40:412
28938991913,3cyclictest3327-21/usr/sbin/munin22:30:400
28938991913,3cyclictest22496-21diskmemload23:41:330
28938991913,3cyclictest22496-21diskmemload23:39:300
28938991913,3cyclictest22496-21diskmemload23:14:350
28938991913,3cyclictest12182-21sh01:10:400
28938991912,4cyclictest8790-21awk01:05:530
28938991912,4cyclictest5079-21tr00:30:360
28938991912,4cyclictest3771-21sh02:06:570
28938991912,4cyclictest352-21processes01:30:470
28938991912,4cyclictest32674-21cstates00:25:370
28938991912,4cyclictest26234-21cat00:50:520
28938991912,4cyclictest22496-21diskmemload02:11:380
28938991912,4cyclictest20549-21grep01:50:560
28938991912,4cyclictest20549-21grep01:50:560
2893899190,3cyclictest22496-21diskmemload02:31:560
28938991812,3cyclictest31169-21sed23:50:430
28938991811,4cyclictest31020-21acpi22:20:320
28938991711,4cyclictest29444-21expr21:10:320
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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