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2026-09-23 - 04:53
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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 Wed Sep 23, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1348421480,3sleep0242699cyclictest02:49:010
1068911020,4ptp4l401ktimersoftd/321:42:363
106891700,1ptp4l401ktimersoftd/322:41:083
106891690,2ptp4l401ktimersoftd/302:34:143
17172640,6sleep0101ktimersoftd/021:42:490
106891640,1ptp4l401ktimersoftd/301:44:453
106891640,1ptp4l401ktimersoftd/301:44:453
72322620,2sleep30-21swapper/303:16:263
20332600,2sleep10-21swapper/102:04:131
323802590,1sleep30-21swapper/301:29:383
106891590,1ptp4l401ktimersoftd/303:08:213
95752580,4sleep1243199cyclictest02:12:401
169792580,2sleep30-21swapper/302:52:453
117922580,3sleep011798-21cpuspeed_turbos23:12:320
106891580,1ptp4l401ktimersoftd/300:02:253
106891580,1ptp4l401ktimersoftd/300:02:253
106891570,1ptp4l401ktimersoftd/322:10:363
106891570,1ptp4l401ktimersoftd/301:26:483
106891570,1ptp4l401ktimersoftd/300:11:563
106891550,1ptp4l401ktimersoftd/302:58:563
106891550,1ptp4l401ktimersoftd/300:41:173
37172530,2sleep20-21swapper/202:07:072
2426995237,7cyclictest9-21ksoftirqd/000:27:340
106891520,1ptp4l401ktimersoftd/300:46:403
253832510,2sleep30-21swapper/300:17:273
106891490,1ptp4l401ktimersoftd/322:25:363
106891470,1ptp4l401ktimersoftd/302:13:123
204624421,11sleep125-21ksoftirqd/121:43:441
2426994331,5cyclictest9-21ksoftirqd/000:07:330
106891430,1ptp4l401ktimersoftd/323:13:173
106891430,1ptp4l401ktimersoftd/322:29:233
106891420,1ptp4l401ktimersoftd/301:12:363
22132415,24sleep20-21swapper/221:45:552
106891410,6ptp4l401ktimersoftd/302:07:513
106891400,1ptp4l401ktimersoftd/303:02:383
106891390,1ptp4l401ktimersoftd/302:49:483
106891390,1ptp4l401ktimersoftd/301:09:423
106891390,1ptp4l401ktimersoftd/300:49:453
106891380,1ptp4l401ktimersoftd/323:59:093
106891380,1ptp4l401ktimersoftd/323:59:093
106891380,1ptp4l401ktimersoftd/302:26:463
106891380,1ptp4l401ktimersoftd/302:03:453
106891380,1ptp4l401ktimersoftd/301:32:323
106891380,1ptp4l401ktimersoftd/300:12:593
284082370,5sleep3244599cyclictest02:32:263
106891370,3ptp4l16856-21kworker/3:100:57:233
106891370,1ptp4l401ktimersoftd/323:49:513
106891370,1ptp4l401ktimersoftd/301:37:353
106891370,1ptp4l401ktimersoftd/301:37:353
106891370,1ptp4l401ktimersoftd/301:21:053
106891370,1ptp4l401ktimersoftd/301:05:113
106891370,1ptp4l401ktimersoftd/300:57:253
106891370,0ptp4l401ktimersoftd/300:36:333
242699366,17cyclictest10061-21ssh01:07:360
106891360,2ptp4l9720-21kworker/3:201:51:513
106891360,2ptp4l9720-21kworker/3:201:51:513
106891360,1ptp4l401ktimersoftd/302:41:013
106891360,1ptp4l401ktimersoftd/301:59:473
106891360,1ptp4l401ktimersoftd/301:55:143
106891360,1ptp4l401ktimersoftd/300:25:553
243799351,12cyclictest97552ssh01:39:202
243799351,12cyclictest97552ssh01:39:202
2426993525,5cyclictest9-21ksoftirqd/022:52:330
2426993523,6cyclictest9-21ksoftirqd/023:07:330
106891350,0ptp4l401ktimersoftd/302:45:373
2426993422,6cyclictest9-21ksoftirqd/023:42:360
2437993322,8cyclictest33-21ksoftirqd/200:47:472
2426993328,3cyclictest9-21ksoftirqd/002:37:260
106891330,2ptp4l7379-21kworker/3:023:01:293
106891330,1ptp4l401ktimersoftd/323:53:403
106891330,1ptp4l401ktimersoftd/323:07:143
106891330,1ptp4l401ktimersoftd/300:30:583
2437993226,3cyclictest33-21ksoftirqd/221:57:322
2426993222,4cyclictest9-21ksoftirqd/000:57:420
2426993218,6cyclictest9-21ksoftirqd/002:37:390
106891320,1ptp4l401ktimersoftd/322:42:223
106891320,1ptp4l401ktimersoftd/321:52:203
106891320,0ptp4l401ktimersoftd/323:35:003
2445993125,3cyclictest41-21ksoftirqd/323:22:213
2437993125,3cyclictest33-21ksoftirqd/202:42:262
2437993125,3cyclictest33-21ksoftirqd/201:17:402
2431993116,4cyclictest10597-21sh02:47:261
106891310,1ptp4l401ktimersoftd/322:19:533
2445993025,3cyclictest41-21ksoftirqd/323:47:213
2445993025,3cyclictest41-21ksoftirqd/322:17:193
2445993025,3cyclictest41-21ksoftirqd/322:17:193
2445993025,3cyclictest41-21ksoftirqd/321:52:183
243799304,3cyclictest121rcu_preempt02:23:222
2437993025,3cyclictest33-21ksoftirqd/201:57:242
2437993024,3cyclictest33-21ksoftirqd/201:47:492
2437993024,3cyclictest33-21ksoftirqd/201:47:492
2437993024,3cyclictest33-21ksoftirqd/200:17:392
106891300,0ptp4l401ktimersoftd/323:30:323
106891300,0ptp4l401ktimersoftd/322:56:363
2437992924,3cyclictest33-21ksoftirqd/202:47:412
2437992924,3cyclictest33-21ksoftirqd/201:12:242
2437992924,3cyclictest33-21ksoftirqd/201:07:242
2437992923,4cyclictest33-21ksoftirqd/203:07:432
2437992923,3cyclictest33-21ksoftirqd/222:52:392
2437992923,3cyclictest33-21ksoftirqd/202:02:252
2437992923,3cyclictest33-21ksoftirqd/201:17:232
2437992923,3cyclictest33-21ksoftirqd/200:47:232
2437992922,4cyclictest33-21ksoftirqd/202:30:052
2437992912,15cyclictest33-21ksoftirqd/200:36:372
242699294,14cyclictest26784-21ssh01:57:370
2426992924,3cyclictest9-21ksoftirqd/000:42:230
2426992923,4cyclictest9-21ksoftirqd/002:02:290
2426992923,3cyclictest9-21ksoftirqd/023:37:210
2426992923,3cyclictest9-21ksoftirqd/000:07:220
2426992923,3cyclictest9-21ksoftirqd/000:07:220
2426992921,4cyclictest9-21ksoftirqd/023:02:330
2445992820,5cyclictest41-21ksoftirqd/322:37:203
2437992823,3cyclictest33-21ksoftirqd/223:22:542
2437992823,3cyclictest33-21ksoftirqd/202:12:252
2437992823,3cyclictest33-21ksoftirqd/201:47:242
2437992823,3cyclictest33-21ksoftirqd/201:47:242
2437992822,3cyclictest33-21ksoftirqd/222:42:342
2437992822,3cyclictest33-21ksoftirqd/202:17:512
2437992822,3cyclictest33-21ksoftirqd/201:32:282
2437992821,4cyclictest33-21ksoftirqd/223:57:452
2437992821,4cyclictest33-21ksoftirqd/223:57:452
2431992821,4cyclictest7486-21/usr/sbin/munin23:57:521
2431992821,4cyclictest7486-21/usr/sbin/munin23:57:521
2431992821,4cyclictest25-21ksoftirqd/103:14:191
2426992822,3cyclictest9-21ksoftirqd/023:57:220
2426992822,3cyclictest9-21ksoftirqd/023:37:400
2445992722,3cyclictest41-21ksoftirqd/322:52:203
2437992722,3cyclictest33-21ksoftirqd/202:47:262
2437992722,3cyclictest33-21ksoftirqd/202:37:262
2437992722,3cyclictest33-21ksoftirqd/202:17:252
2437992721,3cyclictest33-21ksoftirqd/223:02:492
2437992721,3cyclictest33-21ksoftirqd/222:37:392
2437992721,3cyclictest33-21ksoftirqd/222:37:202
2437992720,3cyclictest33-21ksoftirqd/222:47:332
2426992723,2cyclictest9-21ksoftirqd/022:02:190
2426992722,3cyclictest9-21ksoftirqd/023:47:370
2426992722,3cyclictest9-21ksoftirqd/001:52:380
2426992721,3cyclictest9-21ksoftirqd/023:57:370
2426992721,3cyclictest9-21ksoftirqd/023:57:370
2426992721,3cyclictest9-21ksoftirqd/023:24:570
2426992721,3cyclictest9-21ksoftirqd/022:57:340
2426992718,5cyclictest9-21ksoftirqd/000:12:340
2426992718,5cyclictest15626-21grep01:12:420
242699271,5cyclictest121rcu_preempt01:42:240
242699271,5cyclictest121rcu_preempt01:42:240
2445992619,4cyclictest41-21ksoftirqd/323:24:283
2437992621,3cyclictest33-21ksoftirqd/200:02:362
2437992621,3cyclictest33-21ksoftirqd/200:02:362
2437992620,3cyclictest33-21ksoftirqd/221:57:182
2437992620,3cyclictest33-21ksoftirqd/203:12:272
2437992620,3cyclictest33-21ksoftirqd/202:52:452
2437992619,3cyclictest33-21ksoftirqd/201:27:472
2437992619,3cyclictest33-21ksoftirqd/200:52:342
2431992621,3cyclictest25-21ksoftirqd/123:17:211
2431992621,3cyclictest25-21ksoftirqd/101:32:281
2431992620,3cyclictest25-21ksoftirqd/123:23:161
242699265,10cyclictest19791-21ssh01:17:330
2426992621,3cyclictest9-21ksoftirqd/022:47:200
2426992621,3cyclictest9-21ksoftirqd/022:42:200
2426992621,3cyclictest9-21ksoftirqd/000:42:410
2426992620,3cyclictest9-21ksoftirqd/022:17:190
2426992620,3cyclictest9-21ksoftirqd/022:17:190
2426992620,3cyclictest9-21ksoftirqd/021:47:400
2426992619,4cyclictest9-21ksoftirqd/001:40:350
2426992619,4cyclictest9-21ksoftirqd/001:40:350
106891260,1ptp4l401ktimersoftd/322:05:083
106891260,0ptp4l401ktimersoftd/321:58:413
249182250,4sleep3401ktimersoftd/323:37:493
2437992520,3cyclictest33-21ksoftirqd/223:02:212
2437992520,3cyclictest33-21ksoftirqd/203:02:562
2437992520,3cyclictest33-21ksoftirqd/202:57:442
2437992519,4cyclictest33-21ksoftirqd/223:47:452
2437992518,4cyclictest33-21ksoftirqd/223:19:012
2437992518,4cyclictest33-21ksoftirqd/200:12:412
2437992518,3cyclictest33-21ksoftirqd/223:42:372
2437992516,5cyclictest15518-21tr22:12:342
2437992516,5cyclictest15518-21tr22:12:342
2431992519,3cyclictest25-21ksoftirqd/122:23:111
2431992519,3cyclictest25-21ksoftirqd/100:09:221
2431992519,3cyclictest233-21systemd-journal01:52:241
2431992519,3cyclictest233-21systemd-journal01:52:241
2431992518,4cyclictest25-21ksoftirqd/121:59:351
2431992518,4cyclictest25-21ksoftirqd/102:08:231
2426992520,3cyclictest9-21ksoftirqd/022:37:200
2426992520,3cyclictest9-21ksoftirqd/021:52:380
2426992520,3cyclictest9-21ksoftirqd/002:52:450
2426992520,3cyclictest9-21ksoftirqd/002:22:430
2426992520,3cyclictest9-21ksoftirqd/002:07:390
2426992519,3cyclictest9-21ksoftirqd/023:27:420
2426992519,3cyclictest9-21ksoftirqd/022:30:480
2426992518,4cyclictest9-21ksoftirqd/001:32:360
2426992514,4cyclictest32104-21snmp_o5powerctl03:07:490
2426992513,5cyclictest9-21ksoftirqd/000:32:340
106891250,1ptp4l401ktimersoftd/302:18:093
2437992419,3cyclictest33-21ksoftirqd/223:52:462
2437992419,3cyclictest33-21ksoftirqd/223:37:212
2437992419,3cyclictest33-21ksoftirqd/222:02:382
2437992419,3cyclictest33-21ksoftirqd/200:22:382
2437992417,4cyclictest33-21ksoftirqd/222:27:542
2437992417,4cyclictest33-21ksoftirqd/222:11:162
2437992415,3cyclictest15795-21ssh00:39:282
2431992418,3cyclictest25-21ksoftirqd/123:38:251
2431992418,3cyclictest25-21ksoftirqd/123:03:271
2431992418,3cyclictest25-21ksoftirqd/122:44:411
2431992417,4cyclictest25-21ksoftirqd/123:09:521
2431992417,4cyclictest24471-21sed02:27:441
243199241,20cyclictest18307-21ssh02:53:341
2426992419,3cyclictest9-21ksoftirqd/022:07:350
2426992419,3cyclictest9-21ksoftirqd/003:12:450
2426992419,3cyclictest9-21ksoftirqd/001:22:400
2426992418,3cyclictest9-21ksoftirqd/022:48:440
2426992418,3cyclictest9-21ksoftirqd/000:17:360
106891240,1ptp4l401ktimersoftd/323:07:363
100632240,19sleep10-21swapper/101:07:371
70612231,3sleep17063-21snmp_o5powerctl21:52:451
2437992317,3cyclictest33-21ksoftirqd/201:24:072
2437992316,4cyclictest33-21ksoftirqd/223:29:532
2437992316,4cyclictest33-21ksoftirqd/221:50:532
2437992312,9cyclictest33-21ksoftirqd/223:12:412
243199232,12cyclictest11041-21ssh02:47:411
2431992317,3cyclictest25-21ksoftirqd/122:40:331
2431992316,4cyclictest32263-21cron00:57:231
2431992316,4cyclictest25-21ksoftirqd/123:36:021
2431992316,4cyclictest25-21ksoftirqd/122:49:051
2431992316,4cyclictest25-21ksoftirqd/101:05:431
243199231,19cyclictest14398-21snmp_o5powerctl22:07:441
2426992318,3cyclictest9-21ksoftirqd/002:47:260
2426992318,3cyclictest9-21ksoftirqd/002:12:440
2426992317,3cyclictest9-21ksoftirqd/022:17:330
2426992317,3cyclictest9-21ksoftirqd/022:06:080
2426992317,3cyclictest9-21ksoftirqd/001:02:370
2437992215,4cyclictest33-21ksoftirqd/222:19:472
2437992215,4cyclictest33-21ksoftirqd/200:09:482
2431992216,3cyclictest25-21ksoftirqd/102:36:091
2431992215,4cyclictest25-21ksoftirqd/122:53:311
2431992215,4cyclictest25-21ksoftirqd/122:13:361
2431992215,4cyclictest25-21ksoftirqd/122:13:361
2431992215,4cyclictest22378-21grep00:12:511
2431992214,4cyclictest31650-21phc2sys-jitter00:22:451
243199221,3cyclictest24968-21ssh03:01:391
243199221,18cyclictest9300-21snmp_o5powerctl00:32:471
243199221,18cyclictest14758-21snmpd23:56:421
2426992217,3cyclictest9-21ksoftirqd/003:02:420
2426992216,3cyclictest9-21ksoftirqd/000:24:310
2426992215,4cyclictest15799-21grep02:17:530
2426992214,5cyclictest30311-21cut01:27:420
242699221,18cyclictest18839-21sed01:47:590
242699221,18cyclictest18839-21sed01:47:590
2437992115,3cyclictest33-21ksoftirqd/200:27:372
2437992114,4cyclictest23774-21expr23:37:352
2437992114,4cyclictest20098-21/usr/sbin/munin22:22:332
243799210,18cyclictest408-21tr00:57:432
243199219,9cyclictest29121-21latency_hist01:27:231
243199212,16cyclictest8827-21grep01:37:541
243199212,16cyclictest8827-21grep01:37:541
2431992115,3cyclictest25-21ksoftirqd/123:30:261
2431992114,4cyclictest31746-21ssh01:28:311
2431992114,4cyclictest2847-21/usr/sbin/munin00:27:421
2431992114,4cyclictest27994-21sh00:18:561
2431992114,4cyclictest25-21ksoftirqd/123:20:281
2431992114,4cyclictest24656-21tail00:47:581
243199211,3cyclictest32620-21ssh00:57:361
243199211,3cyclictest1269-21ssh03:09:571
2431992113,6cyclictest1470-21sort02:37:421
243199211,18cyclictest25925-21apt-get23:42:361
243199211,18cyclictest21384-21ssh00:45:351
243199211,17cyclictest28772-21ssh01:58:091
243199211,17cyclictest21249-21snmp_o5powerctl01:17:481
243199211,17cyclictest20961-21ssh02:23:181
2426992116,3cyclictest9-21ksoftirqd/022:22:380
2426992116,3cyclictest9-21ksoftirqd/000:52:380
2426992115,3cyclictest9-21ksoftirqd/000:47:470
243799201,4cyclictest10659-21snmp_o5powerctl23:07:482
2431992016,2cyclictest0-21swapper/122:30:281
2431992015,3cyclictest0-21swapper/100:38:111
2431992014,3cyclictest25507-21if_err_enp1s022:32:381
2431992014,3cyclictest13191-21sh00:03:511
2431992014,3cyclictest13191-21sh00:03:511
2431992013,4cyclictest22542-21if_err_enp1s0.101:52:431
243199201,17cyclictest32474-21ssh23:51:381
243199201,17cyclictest28199-21ssh03:03:491
243199201,17cyclictest16979-21ssh01:13:161
243199201,17cyclictest0-21swapper/122:19:321
2431992010,7cyclictest14486-21gltestperf02:17:401
242699209,8cyclictest9-21ksoftirqd/003:02:260
2426992014,3cyclictest27765-21sh02:31:340
2426992013,4cyclictest14226-21expr23:17:340
2431991915,2cyclictest0-21swapper/121:48:471
2431991913,3cyclictest4810-21cat22:57:351
2431991913,3cyclictest10969-21fschecks_count22:02:341
243199191,16cyclictest0-21swapper/101:42:371
243199191,16cyclictest0-21swapper/101:42:371
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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