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2026-08-20 - 18:42
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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 Thu Aug 20, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1068911820,5ptp4l401ktimersoftd/309:26:433
559821730,5sleep02126999cyclictest11:09:100
2046521720,7sleep20-21swapper/209:24:152
136612780,2sleep00-21swapper/014:13:580
141592670,3sleep00-21swapper/011:24:190
34822660,5sleep13485-21sh11:49:131
21275996553,5cyclictest25-21ksoftirqd/113:14:041
2126999626,31cyclictest1055-21runrttasks10:55:370
49402600,3sleep22127999cyclictest14:37:572
246422600,5sleep09-21ksoftirqd/014:58:020
2126999591,3cyclictest0-21swapper/010:10:070
261042580,2sleep20-21swapper/213:19:122
159292580,5sleep12127599cyclictest14:49:081
25402570,2sleep30-21swapper/314:01:533
21275995445,4cyclictest25-21ksoftirqd/110:39:001
21275995445,4cyclictest25-21ksoftirqd/110:39:001
211412534,10sleep10-21swapper/109:28:311
114312530,1sleep30-21swapper/311:58:353
21275994839,5cyclictest25-21ksoftirqd/112:04:031
2126999446,24cyclictest15605-21cat11:29:080
2126999430,2cyclictest326882sleep013:25:440
2128799420,8cyclictest0-21swapper/310:14:083
21275994235,4cyclictest25-21ksoftirqd/112:13:561
2126999422,31cyclictest19907-21apt-get11:34:020
21275994129,6cyclictest25-21ksoftirqd/112:29:041
2126999413,31cyclictest1022-21apt-get14:34:040
2126999413,30cyclictest23206-21apt-get10:39:000
2126999413,30cyclictest23206-21apt-get10:39:000
2126999412,32cyclictest31738-21apt-get12:19:040
2126999411,6cyclictest2266-21apt-get11:49:050
106891410,0ptp4l401ktimersoftd/314:25:153
21275994029,6cyclictest25-21ksoftirqd/111:24:031
2126999402,6cyclictest16891-21apt-get12:04:030
2126999402,35cyclictest8998-21head11:54:220
2126999402,31cyclictest10617-21apt-get13:04:050
2126999402,30cyclictest20811-21apt-get10:34:010
21269994016,21cyclictest46950irq/100-ens3-Tx13:29:050
21287993911,24cyclictest22942-21expr13:49:133
2126999392,29cyclictest26804-21apt-get13:54:060
2126999392,29cyclictest25574-21apt-get10:44:000
21269993913,23cyclictest23760-21munin-node12:39:030
2126999390,5cyclictest30439-21kernelversion09:44:070
2126999390,4cyclictest9356-21tune2fs12:29:070
2126999390,4cyclictest32621-21/usr/sbin/munin13:59:130
2126999390,4cyclictest23395-21/usr/sbin/munin13:49:170
106891390,1ptp4l401ktimersoftd/312:39:153
106891390,1ptp4l401ktimersoftd/311:59:443
21287993812,23cyclictest15161-21ls10:19:183
2128799380,4cyclictest32674-21/usr/sbin/munin12:19:113
2126999389,25cyclictest5454-21date12:58:530
2126999388,28cyclictest28244-21awk14:28:550
2126999383,30cyclictest28080-21tr10:49:040
2126999382,30cyclictest0-21swapper/010:19:010
2126999382,29cyclictest7358-21apt-get13:34:050
2126999380,4cyclictest27546-21fschecks_time09:39:030
106891380,1ptp4l401ktimersoftd/314:51:313
106891380,1ptp4l401ktimersoftd/314:46:253
106891380,1ptp4l401ktimersoftd/314:13:043
106891380,1ptp4l401ktimersoftd/313:41:563
106891380,1ptp4l401ktimersoftd/313:38:173
106891380,1ptp4l401ktimersoftd/313:20:433
106891380,1ptp4l401ktimersoftd/313:10:163
106891380,1ptp4l401ktimersoftd/312:53:053
106891380,1ptp4l401ktimersoftd/312:14:403
106891380,1ptp4l401ktimersoftd/312:09:243
106891380,1ptp4l401ktimersoftd/311:38:293
106891380,1ptp4l401ktimersoftd/310:44:083
106891380,0ptp4l401ktimersoftd/312:59:253
21287993712,22cyclictest25584-21cat09:34:093
2128799370,4cyclictest1689-21ssh14:34:103
21275993728,4cyclictest25-21ksoftirqd/113:54:061
2126999378,25cyclictest32552-21irqrtprio09:49:060
2126999372,7cyclictest20329-21apt-get13:14:040
2126999372,5cyclictest2637-21apt-get11:04:010
2126999372,28cyclictest4224-21apt-get09:59:000
21269993713,21cyclictest1871-21latency_hist11:48:520
2126999370,7cyclictest20325-21python14:19:180
2126999370,4cyclictest18338-21/usr/sbin/munin13:44:170
2126999370,4cyclictest13810-21munin-node12:34:030
2126999370,3cyclictest14613-21diskmemload13:22:160
106891370,1ptp4l401ktimersoftd/314:54:583
106891370,1ptp4l401ktimersoftd/314:30:243
106891370,1ptp4l401ktimersoftd/314:21:153
106891370,1ptp4l401ktimersoftd/314:17:063
106891370,1ptp4l401ktimersoftd/313:31:093
106891370,1ptp4l401ktimersoftd/313:27:373
106891370,1ptp4l401ktimersoftd/313:16:193
106891370,1ptp4l401ktimersoftd/313:05:433
106891370,1ptp4l401ktimersoftd/312:55:523
106891370,1ptp4l401ktimersoftd/312:31:583
106891370,1ptp4l401ktimersoftd/312:27:113
106891370,1ptp4l401ktimersoftd/312:27:113
106891370,1ptp4l401ktimersoftd/311:40:303
106891370,1ptp4l401ktimersoftd/311:29:233
106891370,0ptp4l401ktimersoftd/311:01:313
21287993612,21cyclictest21774-21df09:29:013
21275993624,6cyclictest25-21ksoftirqd/110:34:011
21275993623,10cyclictest25-21ksoftirqd/109:54:031
2126999368,24cyclictest6612-21cat14:39:130
2126999362,5cyclictest4189-21apt-get12:24:050
2126999362,5cyclictest4189-21apt-get12:24:050
21269993614,19cyclictest16530-21missed_timers13:09:130
21269993612,21cyclictest23572-21basename12:44:030
21269993612,21cyclictest22730-21cut12:09:110
21269993611,22cyclictest4920-21irqrtprio14:04:120
21269993611,22cyclictest4920-21irqrtprio14:04:120
2126999360,4cyclictest2177-21fschecks_time09:54:040
106891360,1ptp4l401ktimersoftd/314:06:313
106891360,1ptp4l401ktimersoftd/314:06:313
106891360,1ptp4l401ktimersoftd/313:44:013
106891360,0ptp4l401ktimersoftd/312:34:033
21287993511,21cyclictest18708-21sh12:04:213
21287993510,21cyclictest27723-21sed13:54:123
2126999356,26cyclictest10331-21grep14:09:180
2126999352,7cyclictest12023-21apt-get11:59:040
2126999352,28cyclictest11317-21apt-get10:14:010
2126999352,27cyclictest28508-21apt-get12:49:060
21269993511,21cyclictest14613-21diskmemload14:53:500
2126999350,4cyclictest8405-21ssh13:00:440
2126999350,3cyclictest11077-21diskstats14:44:100
2101623514,11sleep09-21ksoftirqd/009:26:520
21287993413,18cyclictest25420-21sed10:43:503
21287993413,18cyclictest25420-21sed10:43:503
21287993412,19cyclictest9452-21basename11:18:513
21287993412,19cyclictest10144-21expr11:19:033
2128799340,31cyclictest6284-21sh10:03:483
21275993425,5cyclictest25-21ksoftirqd/111:29:031
21275993424,6cyclictest25-21ksoftirqd/109:59:001
2126999349,21cyclictest31324-21latency_hist12:18:520
2126999349,21cyclictest1055-21runrttasks13:43:320
2126999345,26cyclictest10617-21grep11:19:080
21269993412,19cyclictest14613-21diskmemload11:40:070
2126999340,4cyclictest30099-21snmp_o5powerctl14:29:220
2126999340,30cyclictest9634-21cat11:18:510
28892330,4sleep2321ktimersoftd/212:54:352
2128799337,23cyclictest6159-21expr14:39:093
2128799335,4cyclictest10039-21open_files10:09:073
2128799333,26cyclictest25450-21head12:44:213
2128799331,26cyclictest0-21swapper/310:24:033
21287993310,20cyclictest2145-21fschecks_count09:54:043
21287993310,20cyclictest20105-21unixbench_singl10:29:193
2128799330,4cyclictest29764-21apt-get11:44:023
21279993320,7cyclictest33-21ksoftirqd/213:49:052
21275993328,3cyclictest25-21ksoftirqd/112:39:221
21275993327,3cyclictest31582-21cron09:48:491
21275993325,3cyclictest25-21ksoftirqd/112:49:061
2126999330,4cyclictest20439-21runrttasks10:33:050
2126999330,3cyclictest24812-21df09:34:030
2128799328,21cyclictest6735-21cut10:04:013
21287993210,19cyclictest28278-21phc2sys09:39:093
2128799320,4cyclictest3737-21snmp_o5powerctl11:49:183
21275993226,3cyclictest25-21ksoftirqd/114:58:561
21275993226,3cyclictest25-21ksoftirqd/114:29:111
21275993221,6cyclictest25-21ksoftirqd/110:44:001
2126999327,22cyclictest1499-21grep10:59:140
2126999325,24cyclictest21821-21fschecks_count09:29:020
2126999320,4cyclictest7568-21memory10:04:080
2128799314,22cyclictest0-21swapper/311:09:043
2128799313,24cyclictest0-21swapper/310:54:033
2128799310,3cyclictest21172-21perl10:34:053
21275993126,3cyclictest25-21ksoftirqd/112:09:221
21275993126,3cyclictest25-21ksoftirqd/111:18:511
21275993126,3cyclictest25-21ksoftirqd/109:33:531
21275993125,3cyclictest25-21ksoftirqd/114:18:551
21275993125,3cyclictest25-21ksoftirqd/111:08:501
21275993119,9cyclictest25-21ksoftirqd/112:34:031
2126999311,6cyclictest16558-21gltestperf10:24:070
2128799308,19cyclictest13313-21irqrtprio11:24:093
2128799306,21cyclictest29959-21gltestperf09:44:043
2128799303,22cyclictest27946-21apt-get10:49:043
21275993025,3cyclictest25-21ksoftirqd/109:49:151
21275993024,3cyclictest25-21ksoftirqd/114:43:561
21275993024,3cyclictest25-21ksoftirqd/113:24:121
21275993024,3cyclictest25-21ksoftirqd/112:54:141
21275993024,3cyclictest25-21ksoftirqd/111:58:511
21275993019,6cyclictest25-21ksoftirqd/114:34:041
205462300,3sleep20-21swapper/213:14:062
2128799290,4cyclictest412-21memory09:49:083
21279992923,3cyclictest33-21ksoftirqd/211:34:062
2127599295,14cyclictest2512-21ssh13:29:061
21275992924,3cyclictest47050irq/101-ens3-Tx11:44:091
21275992924,3cyclictest25-21ksoftirqd/113:09:221
21275992924,3cyclictest25-21ksoftirqd/112:24:131
21275992924,3cyclictest25-21ksoftirqd/112:24:131
21275992924,3cyclictest25-21ksoftirqd/111:13:511
21275992924,3cyclictest25-21ksoftirqd/110:28:491
21275992923,4cyclictest25-21ksoftirqd/114:44:091
21275992923,3cyclictest25-21ksoftirqd/110:09:021
21275992922,4cyclictest25-21ksoftirqd/111:23:511
21275992922,4cyclictest25-21ksoftirqd/110:18:491
21275992921,5cyclictest25-21ksoftirqd/114:19:131
181682290,6sleep2321ktimersoftd/214:50:142
2128799285,4cyclictest2581-21acpi11:04:003
21279992820,6cyclictest33-21ksoftirqd/214:19:162
21275992823,3cyclictest25-21ksoftirqd/113:39:041
21275992823,3cyclictest25-21ksoftirqd/113:04:071
21275992823,3cyclictest25-21ksoftirqd/110:04:021
21275992823,3cyclictest25-21ksoftirqd/109:33:491
21275992822,4cyclictest25-21ksoftirqd/111:39:101
21275992822,3cyclictest47050irq/101-ens3-Tx14:08:541
21275992822,3cyclictest47050irq/101-ens3-Tx14:08:541
21275992822,3cyclictest25-21ksoftirqd/113:44:181
21275992822,3cyclictest25-21ksoftirqd/110:49:041
21275992822,3cyclictest25-21ksoftirqd/110:23:491
21275992822,3cyclictest25-21ksoftirqd/109:43:491
21279992722,3cyclictest33-21ksoftirqd/212:48:532
21279992721,4cyclictest15101-21kworker/2:014:04:122
21279992721,4cyclictest15101-21kworker/2:014:04:122
21275992722,3cyclictest25-21ksoftirqd/114:28:551
21275992722,3cyclictest25-21ksoftirqd/114:09:111
21275992722,3cyclictest25-21ksoftirqd/113:19:171
21275992722,3cyclictest25-21ksoftirqd/112:44:131
21275992722,3cyclictest25-21ksoftirqd/112:19:051
21275992721,3cyclictest25-21ksoftirqd/113:34:221
21275992721,3cyclictest25-21ksoftirqd/111:34:071
21275992721,3cyclictest25-21ksoftirqd/110:54:201
2127999264,11cyclictest29769-21ssh11:44:022
21279992620,3cyclictest33-21ksoftirqd/211:15:202
21279992619,4cyclictest33-21ksoftirqd/209:56:372
21275992621,3cyclictest25-21ksoftirqd/113:59:081
21275992621,3cyclictest25-21ksoftirqd/113:49:211
21275992620,3cyclictest25-21ksoftirqd/113:03:541
164032260,2sleep10-21swapper/112:03:431
2127999252,14cyclictest21530-21chrt09:28:592
21279992519,3cyclictest33-21ksoftirqd/211:27:082
21279992518,4cyclictest33-21ksoftirqd/214:31:512
21279992518,4cyclictest33-21ksoftirqd/210:51:212
21279992518,4cyclictest33-21ksoftirqd/210:11:472
21275992520,3cyclictest25-21ksoftirqd/110:29:031
262522241,4sleep226609-21apt-config12:13:532
21279992419,3cyclictest33-21ksoftirqd/210:48:502
21279992418,3cyclictest33-21ksoftirqd/212:05:452
21279992418,3cyclictest33-21ksoftirqd/211:53:202
21279992418,3cyclictest33-21ksoftirqd/210:25:212
21279992417,4cyclictest8405-21/usr/sbin/munin13:34:132
21279992417,4cyclictest33-21ksoftirqd/213:27:272
21279992417,4cyclictest33-21ksoftirqd/211:20:042
21279992417,4cyclictest33-21ksoftirqd/210:19:462
21279992417,4cyclictest33-21ksoftirqd/209:37:142
21275992419,3cyclictest25-21ksoftirqd/110:59:081
21279992317,4cyclictest33-21ksoftirqd/213:54:092
21279992317,3cyclictest33-21ksoftirqd/211:03:442
21279992316,4cyclictest33-21ksoftirqd/212:20:182
21279992316,4cyclictest33-21ksoftirqd/210:06:172
21279992316,4cyclictest33-21ksoftirqd/209:46:052
21279992310,8cyclictest47150irq/102-ens3-Tx13:39:042
21279992215,4cyclictest33-21ksoftirqd/209:51:232
21279992215,4cyclictest14373-21if_enp1s014:14:102
2127999216,12cyclictest233-21systemd-journal12:33:522
21279992116,3cyclictest33-21ksoftirqd/210:18:192
21279992115,3cyclictest33-21ksoftirqd/214:56:582
21279992115,3cyclictest33-21ksoftirqd/214:40:422
21279992114,4cyclictest33-21ksoftirqd/214:46:002
21279992114,4cyclictest33-21ksoftirqd/210:33:272
21279992114,4cyclictest24310-21open_inodes10:39:102
21279992114,4cyclictest24310-21open_inodes10:39:102
21279992114,4cyclictest20097-21sh13:46:232
21279992114,4cyclictest19580-21sh13:13:162
2127999210,18cyclictest26595-21grep11:39:202
2127999205,8cyclictest33-21ksoftirqd/212:09:052
21279992015,3cyclictest33-21ksoftirqd/211:30:032
21279992014,3cyclictest8149-21latency11:54:122
21279992014,3cyclictest7647-21sh12:27:112
21279992014,3cyclictest7647-21sh12:27:112
21279992014,3cyclictest32199-21gltestperf13:59:112
21279992013,4cyclictest8895-21/usr/sbin/munin14:09:242
21279992013,4cyclictest7151-21sendmail_mailst12:59:152
21279992013,4cyclictest33-21ksoftirqd/210:54:552
21279992013,4cyclictest28480-21basename12:49:052
21279992013,4cyclictest23617-21sh14:23:572
21279992013,4cyclictest22877-21cron10:38:492
21279992013,4cyclictest19756-21expr12:39:122
21279992012,5cyclictest13871-21sh12:34:042
21279991913,3cyclictest5901-21sh13:32:042
21279991913,3cyclictest13046-21sh13:05:242
21279991912,4cyclictest3492-21sed11:04:072
21279991911,5cyclictest6675-21head11:09:212
21279991911,5cyclictest12620-21iwlist11:59:092
2127999183,2cyclictest121rcu_preempt09:40:572
21279991812,3cyclictest4391-21cstates09:59:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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