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2026-06-17 - 13:44
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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 Jun 17, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
533521310,5sleep3337899cyclictest00:39:273
106891980,3ptp4l401ktimersoftd/320:49:003
3359997655,14cyclictest9-21ksoftirqd/001:03:300
106891710,1ptp4l401ktimersoftd/300:58:143
106891690,1ptp4l401ktimersoftd/300:01:233
162742680,6sleep316279-21gltestperf00:18:353
77692670,1sleep20-21swapper/202:21:442
21922665,47sleep00-21swapper/020:48:340
336799659,25cyclictest1900-21seq02:15:031
336799640,32cyclictest28901-21diskmemload23:13:221
3359996350,6cyclictest9-21ksoftirqd/002:03:320
106891630,1ptp4l401ktimersoftd/302:02:313
296652620,4sleep2337399cyclictest21:43:372
296652620,4sleep2337399cyclictest21:43:372
336799611,26cyclictest20926-21ptp4l-jitter01:28:421
31562614,10sleep20-21swapper/220:52:032
245482610,4sleep0101ktimersoftd/021:33:320
336799601,28cyclictest15550-21ssh00:50:101
336799600,27cyclictest31085-21ssh02:12:531
336799591,25cyclictest9195-21mailstats22:08:381
3367995910,26cyclictest13119-21sh00:14:281
106891590,1ptp4l401ktimersoftd/323:56:323
106891590,1ptp4l401ktimersoftd/323:20:423
106891590,1ptp4l401ktimersoftd/323:20:423
68072580,2sleep00-21swapper/002:20:050
336799581,32cyclictest22724-21ssh00:24:091
336799581,25cyclictest2466-21seq21:54:031
336799580,25cyclictest27722-21sh23:57:281
3359995847,6cyclictest9-21ksoftirqd/023:03:280
3359995846,5cyclictest9-21ksoftirqd/023:23:270
225832580,4sleep2321ktimersoftd/223:18:362
225832580,4sleep2321ktimersoftd/223:18:362
36402570,26sleep03740-21if_ens300:38:370
336799571,24cyclictest30051-21sh23:26:151
336799570,29cyclictest0-21swapper/101:52:221
336799570,28cyclictest31124-21ssh01:06:451
336799570,27cyclictest15771-21seq21:17:421
336799570,26cyclictest31570-21ssh01:39:051
336799570,26cyclictest14462-21seq22:20:491
336799570,25cyclictest32225-21sh00:01:491
336799570,24cyclictest13656-21sh01:22:141
336799570,24cyclictest13656-21sh01:22:141
336799570,24cyclictest1347-21taskset22:58:131
336799561,27cyclictest5424-21chrt20:55:071
336799560,26cyclictest7011-21ssh02:20:261
336799560,24cyclictest28901-21diskmemload02:05:561
336799560,24cyclictest18053-21seq00:19:331
3359995647,4cyclictest9-21ksoftirqd/023:18:290
3359995647,4cyclictest9-21ksoftirqd/023:18:290
3359995645,6cyclictest9-21ksoftirqd/001:58:330
3359995644,7cyclictest9-21ksoftirqd/021:28:270
336799551,28cyclictest24690-21sh00:59:081
336799550,29cyclictest5979-21sh23:33:471
336799550,23cyclictest12129-21taskset00:47:411
3359995543,5cyclictest9-21ksoftirqd/001:23:310
336799530,24cyclictest11058-21ssh23:07:381
48982520,5sleep04832-21irqrtprio23:33:360
336799521,26cyclictest8950-21/usr/sbin/munin21:03:271
336799521,22cyclictest14718-21ssh01:55:011
336799520,25cyclictest7382-21runrttasks22:05:591
336799520,22cyclictest13315-21runrttasks21:11:311
336799520,21cyclictest7475-21ssh00:08:451
293842510,1sleep20-21swapper/200:31:512
336799500,25cyclictest30476-21turbostat.cron21:48:091
336799500,25cyclictest30476-21turbostat.cron21:48:091
336799500,23cyclictest12931-21sh23:42:191
336799500,22cyclictest4104-21ssh22:59:331
336799500,22cyclictest24460-21ssh23:20:271
336799500,22cyclictest24460-21ssh23:20:271
3359994939,6cyclictest9-21ksoftirqd/020:58:250
30512494,33sleep10-21swapper/120:50:411
143291490,4getstats337899cyclictest01:45:423
3359994841,3cyclictest9-21ksoftirqd/000:23:310
105791480,3getstats46850irq/99-ens3-TxR01:05:103
336799471,24cyclictest23814-21chrt22:39:081
336799471,24cyclictest21422-21fschecks_time21:28:301
336799471,23cyclictest0-21swapper/101:10:241
3359994737,4cyclictest9-21ksoftirqd/023:48:320
3359994735,6cyclictest9-21ksoftirqd/023:53:270
336799461,31cyclictest31565-21/usr/sbin/munin23:28:351
336799461,25cyclictest27920-21chrt21:40:591
106891460,2ptp4l29727-21kworker/3:122:28:293
336799451,26cyclictest20175-21ssh00:54:441
336799450,31cyclictest8586-21taskset01:16:551
336799450,24cyclictest28901-21diskmemload00:04:241
336799450,21cyclictest0-21swapper/100:34:281
336799441,27cyclictest26975-21grep22:48:291
336799440,27cyclictest19084-21chrt22:29:091
336799440,21cyclictest0-21swapper/123:49:461
3359994432,5cyclictest9-21ksoftirqd/021:43:260
3359994432,5cyclictest9-21ksoftirqd/021:43:260
3359994431,6cyclictest9-21ksoftirqd/022:08:270
336799431,25cyclictest21583-21taskset22:35:531
336799431,24cyclictest6356-21ssh01:47:401
336799430,30cyclictest25708-21seq21:38:051
336799430,25cyclictest29437-21taskset00:31:561
336799430,24cyclictest0-21swapper/101:36:211
26392430,1sleep20-21swapper/200:38:142
336799420,25cyclictest7074-21chrt00:42:261
336799420,22cyclictest15777-21users23:43:491
143291420,4getstats337899cyclictest01:25:413
3378994134,3cyclictest41-21ksoftirqd/322:58:293
336799411,24cyclictest11761-21/usr/sbin/munin23:08:331
336799410,31cyclictest1055-21runrttasks21:22:031
336799410,21cyclictest26225-21runrttasks22:44:281
336799410,20cyclictest0-21swapper/102:02:571
3359994134,3cyclictest9-21ksoftirqd/001:38:240
3359994131,5cyclictest9-21ksoftirqd/000:03:300
3359994130,6cyclictest9-21ksoftirqd/000:28:320
3359994129,6cyclictest9-21ksoftirqd/021:23:260
3378994034,3cyclictest41-21ksoftirqd/302:13:323
336799400,22cyclictest0-21swapper/101:25:291
336799390,25cyclictest12270-21chrt22:18:011
336799390,23cyclictest19537-21missed_timers21:23:341
106891390,1ptp4l401ktimersoftd/301:19:543
106891390,1ptp4l401ktimersoftd/301:19:543
106891390,0ptp4l401ktimersoftd/321:08:273
3378993832,3cyclictest41-21ksoftirqd/321:03:143
336799381,22cyclictest1055-21runrttasks21:48:491
336799380,23cyclictest6092-21forks20:58:151
3359993830,4cyclictest9-21ksoftirqd/000:33:310
106891380,1ptp4l401ktimersoftd/323:32:413
106891380,1ptp4l401ktimersoftd/321:58:323
106891380,1ptp4l401ktimersoftd/301:49:573
106891380,1ptp4l401ktimersoftd/301:36:043
106891380,1ptp4l401ktimersoftd/301:15:503
106891380,1ptp4l401ktimersoftd/301:10:563
106891380,1ptp4l401ktimersoftd/300:45:353
106891380,1ptp4l401ktimersoftd/300:25:543
3359993732,3cyclictest9-21ksoftirqd/022:43:160
106891370,1ptp4l401ktimersoftd/323:52:353
106891370,1ptp4l401ktimersoftd/323:40:323
106891370,1ptp4l401ktimersoftd/323:17:073
106891370,1ptp4l401ktimersoftd/322:55:223
106891370,1ptp4l401ktimersoftd/300:49:433
106891370,1ptp4l401ktimersoftd/300:35:233
106891370,1ptp4l401ktimersoftd/300:08:573
106891370,15ptp4l401ktimersoftd/323:45:063
106891370,0ptp4l401ktimersoftd/322:23:433
3359993631,3cyclictest9-21ksoftirqd/000:58:180
3359993626,5cyclictest9-21ksoftirqd/022:18:280
106891360,3ptp4l4124-21kworker/3:220:54:253
106891360,1ptp4l401ktimersoftd/302:03:363
106891360,1ptp4l401ktimersoftd/301:01:233
106891360,1ptp4l401ktimersoftd/300:31:563
106891360,1ptp4l401ktimersoftd/300:17:533
106891360,1ptp4l401ktimersoftd/300:06:283
106891360,0ptp4l401ktimersoftd/301:41:343
3378993530,3cyclictest41-21ksoftirqd/322:43:163
3359993527,4cyclictest9-21ksoftirqd/023:28:280
3359993523,9cyclictest9-21ksoftirqd/021:13:290
3359993522,10cyclictest9-21ksoftirqd/002:13:380
106891350,2ptp4l9635-21kworker/3:201:56:063
106891350,1ptp4l401ktimersoftd/323:11:343
106891350,0ptp4l401ktimersoftd/323:35:223
106891350,0ptp4l401ktimersoftd/302:20:303
3367993414,17cyclictest4084-21load21:58:341
3359993429,3cyclictest9-21ksoftirqd/023:43:300
3359993428,3cyclictest9-21ksoftirqd/001:38:200
3359993428,3cyclictest9-21ksoftirqd/001:18:190
3359993422,9cyclictest9-21ksoftirqd/000:43:360
106891340,2ptp4l29727-21kworker/3:123:25:333
106891340,2ptp4l29727-21kworker/3:123:06:053
106891340,1ptp4l401ktimersoftd/301:32:423
336799332,26cyclictest16330-21snmp_o5powerctl22:23:421
335999339,4cyclictest9-21ksoftirqd/021:43:140
3359993328,3cyclictest9-21ksoftirqd/001:43:350
3359993328,3cyclictest9-21ksoftirqd/001:23:190
3359993328,3cyclictest9-21ksoftirqd/001:23:190
3359993328,3cyclictest9-21ksoftirqd/001:13:190
3359993328,3cyclictest9-21ksoftirqd/000:18:390
106891330,1ptp4l401ktimersoftd/302:11:053
3373993227,3cyclictest33-21ksoftirqd/200:23:182
3359993227,3cyclictest9-21ksoftirqd/022:18:150
3359993227,3cyclictest9-21ksoftirqd/021:53:350
3359993226,3cyclictest9-21ksoftirqd/001:58:210
3359993221,9cyclictest9-21ksoftirqd/022:53:310
3359993220,3cyclictest9-21ksoftirqd/000:08:390
286802320,4sleep2337399cyclictest01:03:392
245012320,3sleep2321ktimersoftd/200:27:132
106891320,1ptp4l401ktimersoftd/322:48:553
106891320,1ptp4l401ktimersoftd/322:34:053
106891320,1ptp4l401ktimersoftd/322:19:293
3378993122,4cyclictest41-21ksoftirqd/321:18:253
3359993126,3cyclictest9-21ksoftirqd/020:53:430
3359993126,3cyclictest9-21ksoftirqd/001:48:470
3359993125,3cyclictest9-21ksoftirqd/022:48:290
3359993125,3cyclictest9-21ksoftirqd/002:08:500
3359993125,3cyclictest9-21ksoftirqd/001:33:200
106891310,1ptp4l401ktimersoftd/321:15:203
3378993025,3cyclictest41-21ksoftirqd/321:33:143
3378993024,3cyclictest41-21ksoftirqd/321:53:153
337399300,2cyclictest121rcu_preempt23:39:332
3359993025,3cyclictest9-21ksoftirqd/023:14:370
3359993025,3cyclictest9-21ksoftirqd/023:13:160
3359993025,3cyclictest9-21ksoftirqd/022:23:300
3359993024,3cyclictest9-21ksoftirqd/022:58:400
3359993024,3cyclictest9-21ksoftirqd/022:28:310
3359993020,6cyclictest9-21ksoftirqd/000:58:300
255732300,1sleep20-21swapper/201:00:382
106891300,1ptp4l401ktimersoftd/322:14:003
106891300,0ptp4l401ktimersoftd/322:46:333
3378992923,3cyclictest41-21ksoftirqd/321:23:303
337399293,6cyclictest121rcu_preempt21:33:312
3373992919,8cyclictest33-21ksoftirqd/222:56:072
3359992924,3cyclictest9-21ksoftirqd/023:38:320
3359992924,3cyclictest9-21ksoftirqd/022:08:150
3359992924,3cyclictest9-21ksoftirqd/021:48:340
3359992924,3cyclictest9-21ksoftirqd/021:08:330
3359992923,3cyclictest9-21ksoftirqd/023:58:350
3359992923,3cyclictest9-21ksoftirqd/022:33:450
3359992923,3cyclictest9-21ksoftirqd/000:48:360
3359992923,3cyclictest9-21ksoftirqd/000:18:180
106891290,0ptp4l401ktimersoftd/322:08:173
106891290,0ptp4l401ktimersoftd/322:04:053
3373992811,3cyclictest33-21ksoftirqd/200:48:092
3359992823,3cyclictest9-21ksoftirqd/021:03:330
3359992822,3cyclictest9-21ksoftirqd/021:18:270
3359992815,10cyclictest25047-21if_ens322:43:310
3378992722,3cyclictest41-21ksoftirqd/321:53:293
3378992722,3cyclictest41-21ksoftirqd/321:43:143
3378992721,3cyclictest41-21ksoftirqd/321:43:443
3378992721,3cyclictest41-21ksoftirqd/321:43:443
337399272,2cyclictest121rcu_preempt01:15:282
3373992722,3cyclictest33-21ksoftirqd/202:11:192
3373992722,3cyclictest33-21ksoftirqd/200:03:312
3373992721,3cyclictest33-21ksoftirqd/222:58:322
3373992721,3cyclictest33-21ksoftirqd/221:40:112
3373992720,4cyclictest33-21ksoftirqd/221:20:412
3373992621,3cyclictest33-21ksoftirqd/223:58:362
3373992621,3cyclictest33-21ksoftirqd/223:28:352
3373992621,3cyclictest33-21ksoftirqd/221:48:322
3373992621,3cyclictest33-21ksoftirqd/201:18:312
3373992621,3cyclictest33-21ksoftirqd/201:18:312
3373992620,3cyclictest33-21ksoftirqd/202:03:202
3373992619,4cyclictest33-21ksoftirqd/222:38:212
3373992619,4cyclictest33-21ksoftirqd/221:23:252
3373992619,4cyclictest33-21ksoftirqd/201:28:322
3359992621,3cyclictest9-21ksoftirqd/021:58:300
106891260,0ptp4l401ktimersoftd/321:35:373
3378992520,3cyclictest41-21ksoftirqd/321:08:143
3373992521,3cyclictest33-21ksoftirqd/223:23:392
3373992520,3cyclictest33-21ksoftirqd/201:43:202
3373992520,3cyclictest33-21ksoftirqd/200:38:472
3373992519,3cyclictest33-21ksoftirqd/221:13:272
3373992519,3cyclictest33-21ksoftirqd/220:54:222
3373992518,4cyclictest33-21ksoftirqd/222:20:512
3373992518,4cyclictest33-21ksoftirqd/221:07:162
3373992518,4cyclictest33-21ksoftirqd/221:02:102
3373992420,3cyclictest33-21ksoftirqd/201:43:202
3373992419,3cyclictest26526-21cron22:48:162
3373992418,3cyclictest33-21ksoftirqd/222:02:142
3373992418,3cyclictest33-21ksoftirqd/221:55:372
3373992417,4cyclictest33-21ksoftirqd/221:10:412
337399233,11cyclictest12177-21ssh01:53:322
3373992318,3cyclictest33-21ksoftirqd/201:23:342
3373992318,3cyclictest33-21ksoftirqd/200:53:342
3373992318,3cyclictest33-21ksoftirqd/200:49:332
3373992318,3cyclictest33-21ksoftirqd/200:08:322
3373992317,3cyclictest33-21ksoftirqd/223:49:232
3373992317,3cyclictest33-21ksoftirqd/223:13:352
3373992316,4cyclictest33-21ksoftirqd/222:49:012
3373992316,4cyclictest33-21ksoftirqd/202:14:332
3373992316,4cyclictest33-21ksoftirqd/201:38:002
337399223,11cyclictest11847-21ssh23:08:292
3373992217,3cyclictest33-21ksoftirqd/221:30:572
3373992216,3cyclictest33-21ksoftirqd/222:10:372
3373992216,3cyclictest33-21ksoftirqd/202:03:402
3373992116,3cyclictest33-21ksoftirqd/223:43:342
3373992116,3cyclictest33-21ksoftirqd/222:08:102
3373992116,3cyclictest33-21ksoftirqd/201:08:332
3373992115,3cyclictest33-21ksoftirqd/223:34:212
3373992114,4cyclictest12944-21sh00:14:102
337399210,3cyclictest121rcu_preempt01:52:092
3373992015,3cyclictest33-21ksoftirqd/223:55:172
3373992013,4cyclictest14913-21/usr/sbin/munin22:23:412
3373991914,3cyclictest33-21ksoftirqd/223:03:162
3373991914,3cyclictest33-21ksoftirqd/222:33:292
3373991913,3cyclictest10156-21/usr/sbin/munin22:13:282
3373991711,3cyclictest17606-21sh22:28:292
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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