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2026-09-14 - 02:53
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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 Sun Sep 13, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2050921660,5sleep3776999cyclictest13:41:353
3254421540,5sleep0775099cyclictest14:58:480
2593021340,5sleep3776999cyclictest13:12:363
1068911070,4ptp4l401ktimersoftd/309:39:533
32072690,4sleep3401ktimersoftd/313:22:363
130212670,2sleep30-21swapper/314:38:483
76352644,10sleep00-21swapper/009:42:000
99412630,1sleep20-21swapper/214:36:542
106891610,1ptp4l401ktimersoftd/311:54:173
100912590,4sleep3401ktimersoftd/309:47:043
106891550,1ptp4l401ktimersoftd/310:08:493
106891500,1ptp4l401ktimersoftd/314:14:383
106891470,3ptp4l23693-21kworker/3:112:21:283
106891470,3ptp4l1785-21kworker/3:113:54:093
106891470,3ptp4l1785-21kworker/3:113:54:093
71192450,1sleep10-21swapper/112:53:071
7750994414,27cyclictest604-21grep10:32:280
106891430,1ptp4l401ktimersoftd/314:29:153
775099422,5cyclictest0-21swapper/014:42:230
775099412,9cyclictest21310-21rm13:42:250
775099412,9cyclictest21310-21rm13:42:250
775099402,5cyclictest0-21swapper/013:32:210
775099402,4cyclictest0-21swapper/013:17:210
106891400,1ptp4l401ktimersoftd/314:24:133
106891400,1ptp4l401ktimersoftd/311:58:043
106891400,1ptp4l401ktimersoftd/310:02:193
775099392,5cyclictest0-21swapper/014:37:220
7750993911,3cyclictest17525-21wc12:32:080
106891390,1ptp4l401ktimersoftd/314:01:463
106891390,1ptp4l401ktimersoftd/313:32:063
106891390,1ptp4l401ktimersoftd/312:05:053
106891390,10ptp4l401ktimersoftd/313:03:213
7763993817,18cyclictest17403-21sh13:04:052
775099383,8cyclictest1794-21ssh13:22:250
775099383,4cyclictest0-21swapper/013:57:220
775099382,9cyclictest26346-21ssh13:47:220
775099382,9cyclictest26346-21ssh13:47:220
775099382,7cyclictest13428-21apt-get09:52:180
7750993814,21cyclictest10575-21sh12:23:360
7750993813,22cyclictest46950irq/100-ens3-Tx13:02:260
106891380,1ptp4l401ktimersoftd/314:58:153
106891380,1ptp4l401ktimersoftd/314:54:283
106891380,1ptp4l401ktimersoftd/314:51:533
106891380,1ptp4l401ktimersoftd/314:34:003
106891380,1ptp4l401ktimersoftd/314:03:403
106891380,1ptp4l401ktimersoftd/313:34:393
106891380,1ptp4l401ktimersoftd/313:00:223
106891380,1ptp4l401ktimersoftd/312:53:483
106891380,1ptp4l401ktimersoftd/312:44:083
106891380,1ptp4l401ktimersoftd/312:31:483
106891380,1ptp4l401ktimersoftd/312:24:533
106891380,1ptp4l401ktimersoftd/312:14:263
106891380,1ptp4l401ktimersoftd/311:32:193
106891380,1ptp4l401ktimersoftd/310:47:213
776399372,30cyclictest0-21swapper/214:07:212
776399371,33cyclictest18518-21grep10:02:182
7763993711,22cyclictest6230-21readlink10:42:302
775099379,4cyclictest10231-21sort12:57:240
775099378,4cyclictest2863-21fschecks_time15:02:300
775099373,8cyclictest10945-21apt-get11:52:180
775099373,6cyclictest28325-21apt-get14:22:250
7750993713,21cyclictest642-21diskmemload11:50:190
7750993712,4cyclictest8010-21cat15:07:290
7750993712,4cyclictest642-21diskmemload12:00:280
106891370,1ptp4l401ktimersoftd/315:07:423
106891370,1ptp4l401ktimersoftd/314:45:003
106891370,1ptp4l401ktimersoftd/314:18:073
106891370,1ptp4l401ktimersoftd/314:10:393
106891370,1ptp4l401ktimersoftd/312:49:273
106891370,1ptp4l401ktimersoftd/312:39:313
106891370,1ptp4l401ktimersoftd/312:33:233
106891370,1ptp4l401ktimersoftd/311:48:243
106891370,0ptp4l401ktimersoftd/315:06:243
106891370,0ptp4l401ktimersoftd/313:45:023
106891370,0ptp4l401ktimersoftd/313:45:023
106891370,0ptp4l401ktimersoftd/312:07:393
776399361,4cyclictest21342-21load14:47:332
776399361,4cyclictest17329-21snmp_o5powerctl11:57:332
776399361,3cyclictest19644-21chrt13:40:052
776399360,5cyclictest10375-21ssh14:02:372
776399360,4cyclictest29984-21cat13:17:282
776399360,4cyclictest22966-21/usr/sbin/munin11:17:332
7755993629,4cyclictest18175-21sendmail14:12:101
775099369,4cyclictest693-21acpi14:27:220
775099369,3cyclictest30143-21grep10:27:160
775099369,3cyclictest27962-21cat14:22:100
775099368,5cyclictest642-21diskmemload12:09:040
775099368,3cyclictest29756-21open_inodes11:32:270
775099362,5cyclictest0-21swapper/012:32:190
775099362,5cyclictest0-21swapper/010:52:170
7750993612,3cyclictest642-21diskmemload13:53:160
7750993612,3cyclictest642-21diskmemload13:53:160
7750993612,3cyclictest24759-21latency_hist14:52:120
7750993612,3cyclictest20702-21seq12:02:190
7750993611,4cyclictest7785-21open_files13:27:290
7750993611,4cyclictest642-21diskmemload14:11:540
7750993611,3cyclictest8753-21sh14:34:510
775099361,11cyclictest15328-21grep11:02:250
7750993610,3cyclictest17980-21sed13:37:370
106891360,2ptp4l23693-21kworker/3:113:20:033
106891360,0ptp4l401ktimersoftd/310:00:553
776399352,11cyclictest18599-21apt-get14:12:232
7763993515,17cyclictest12831-21sh11:52:392
7763993512,20cyclictest22066-21sed13:42:322
7763993512,20cyclictest22066-21sed13:42:322
7763993511,21cyclictest25247-21snmp_o5powerctl11:22:322
776399350,4cyclictest7269-21chrt14:00:132
776399350,3cyclictest0-21swapper/211:37:212
775099359,4cyclictest12731-21vmstat09:47:320
775099359,3cyclictest4574-21latency_hist12:52:090
775099353,6cyclictest4984-21apt-get12:52:200
775099353,6cyclictest22763-21apt-get12:37:190
775099352,7cyclictest8807-21apt-get14:02:200
7750993512,3cyclictest5242-21tune2fs10:42:220
7750993512,3cyclictest17348-21sed09:57:330
7750993511,3cyclictest642-21diskmemload14:52:490
7750993511,3cyclictest642-21diskmemload13:16:440
7750993511,3cyclictest32233-21timerandwakeup12:12:350
106891350,1ptp4l401ktimersoftd/313:48:053
106891350,1ptp4l401ktimersoftd/313:48:053
106891350,1ptp4l401ktimersoftd/310:12:593
776399349,22cyclictest1055-21runrttasks11:43:282
776399347,23cyclictest16470-21cron11:07:062
776399343,25cyclictest30049-21ssh14:57:232
776399342,4cyclictest0-21swapper/213:27:202
7763993412,18cyclictest17529-21wc12:32:082
7763993411,20cyclictest22050-21sh12:36:362
7763993410,21cyclictest14768-21snmp_o5powerctl09:52:312
7763993410,21cyclictest13780-21sh13:33:212
776399340,5cyclictest18548-21ssh14:44:542
776399340,5cyclictest11197-21grep12:57:312
776399340,4cyclictest5628-21ssh13:26:082
776399340,31cyclictest28497-21ssh14:55:132
776399340,12cyclictest0-21swapper/213:15:242
775099348,3cyclictest25706-21gltestperf10:17:220
775099348,3cyclictest25706-21gltestperf10:17:220
7750993412,3cyclictest22833-21/usr/sbin/munin10:12:220
7750993412,19cyclictest19530-21fschecks_time11:12:220
775099341,10cyclictest18257-21grep10:02:160
106891340,2ptp4l5081-21kworker/3:211:20:223
776399339,21cyclictest24235-21sed13:12:092
776399339,20cyclictest12138-21grep10:57:202
776399332,26cyclictest0-21swapper/212:22:232
7763993314,16cyclictest3721-21fschecks_time12:17:262
7763993314,16cyclictest21316-21latency_hist11:17:062
776399331,26cyclictest6003-21apt-get11:47:182
7763993310,20cyclictest47150irq/102-ens3-Tx12:37:262
776399330,5cyclictest8709-21sh12:55:512
776399330,5cyclictest10352-21sh14:37:132
776399330,4cyclictest24411-21taskset12:05:382
775099339,4cyclictest17188-21tail11:07:230
775099331,7cyclictest9351-21snmp_o5powerctl09:42:320
775099331,10cyclictest4135-21grep10:37:350
7750993310,3cyclictest101ktimersoftd/011:37:300
106891330,1ptp4l401ktimersoftd/311:45:233
106891330,1ptp4l401ktimersoftd/310:22:223
106891330,1ptp4l401ktimersoftd/310:22:223
776399329,20cyclictest642-21diskmemload12:49:122
776399329,19cyclictest32079-21ls10:32:052
776399329,19cyclictest16941-21cat11:07:202
776399323,22cyclictest23415-21apt-get14:17:212
776399323,10cyclictest20527-21apt-get10:07:182
776399322,24cyclictest27683-21ssh12:42:242
776399321,28cyclictest7539-21df_inode10:47:202
7763993211,17cyclictest47150irq/102-ens3-Tx15:07:222
776399320,5cyclictest28784-21tail14:22:292
776399320,4cyclictest9682-21dpkg10:52:162
776399320,4cyclictest22822-21taskset10:12:072
776399320,29cyclictest26565-21expr13:47:232
776399320,29cyclictest26565-21expr13:47:232
775599325,15cyclictest32511-21ssh12:47:191
775099328,3cyclictest22768-21ptp4l-jitter11:17:270
775099327,3cyclictest1090-21cpu11:42:190
775099320,5cyclictest31006-21ssh12:45:150
775099320,10cyclictest20911-21ptp4l-jitter13:07:310
106891320,1ptp4l401ktimersoftd/310:27:313
106891320,11ptp4l401ktimersoftd/310:45:103
106891320,0ptp4l401ktimersoftd/311:01:293
776399316,4cyclictest31433-21cut12:12:252
776399311,4cyclictest1766-21memory14:27:312
776399311,3cyclictest27337-21cat12:07:372
776399310,3cyclictest32702-21snmp_o5powerctl13:52:362
776399310,3cyclictest32702-21snmp_o5powerctl13:52:362
776399310,28cyclictest2371-21rm15:02:202
69432316,10sleep10-21swapper/109:37:331
106891310,1ptp4l401ktimersoftd/311:22:093
776399306,4cyclictest29103-21tail11:32:232
776399306,3cyclictest3325-21cut10:37:252
776399302,25cyclictest27568-21/usr/sbin/munin10:22:362
776399302,25cyclictest27568-21/usr/sbin/munin10:22:362
776399301,5cyclictest0-21swapper/210:17:182
776399301,5cyclictest0-21swapper/210:17:182
776399300,4cyclictest8647-21ps09:42:232
776399300,4cyclictest27620-21snmp_o5powerctl11:27:332
775099309,3cyclictest1055-21runrttasks10:50:550
775099307,4cyclictest25412-21timerwakeupswit11:22:340
775099307,3cyclictest0-21swapper/012:18:040
106891300,1ptp4l401ktimersoftd/313:10:033
776399291,4cyclictest12376-21/usr/sbin/munin09:47:282
775599294,16cyclictest8810-21ssh14:02:201
775099299,3cyclictest13118-21needreboot10:57:270
74852296,10sleep20-21swapper/209:40:052
106891290,1ptp4l401ktimersoftd/311:05:413
7769992822,3cyclictest41-21ksoftirqd/311:32:063
776399289,17cyclictest16485-21sed09:57:232
776399281,4cyclictest1593-21grep10:32:382
775599284,13cyclictest20827-21ssh12:02:231
7769992722,3cyclictest41-21ksoftirqd/310:42:053
7769992720,4cyclictest41-21ksoftirqd/309:53:473
775599274,14cyclictest14714-21ssh13:02:201
775099279,2cyclictest101ktimersoftd/014:15:150
2739122720,3sleep125-21ksoftirqd/113:14:321
1452912719,3phc2sys41-21ksoftirqd/311:12:203
143322270,2sleep10-21swapper/114:41:031
119112270,4sleep3776999cyclictest10:57:063
106891270,1ptp4l401ktimersoftd/311:10:313
106891270,1ptp4l401ktimersoftd/310:17:533
106891270,1ptp4l401ktimersoftd/310:17:533
7769992618,4cyclictest41-21ksoftirqd/309:47:083
7755992621,3cyclictest25-21ksoftirqd/114:17:101
7755992621,3cyclictest25-21ksoftirqd/110:21:451
7755992621,3cyclictest25-21ksoftirqd/110:21:451
106891260,1ptp4l401ktimersoftd/310:36:033
7755992518,4cyclictest7761-21needreboot13:27:281
7755992518,4cyclictest25-21ksoftirqd/114:29:311
7755992518,4cyclictest25-21ksoftirqd/111:10:091
7755992517,5cyclictest8028-21ps15:07:291
775599242,13cyclictest25164-21ssh14:52:221
7755992419,3cyclictest25-21ksoftirqd/111:57:241
7755992418,3cyclictest25-21ksoftirqd/114:44:271
7755992417,4cyclictest28524-21irqstats10:22:241
7755992417,4cyclictest28524-21irqstats10:22:241
7755992417,4cyclictest25-21ksoftirqd/111:32:011
7755992417,4cyclictest25-21ksoftirqd/110:35:441
7755992416,4cyclictest32744-21idleruntime-cro14:27:101
106891240,1ptp4l401ktimersoftd/311:37:323
7755992318,3cyclictest25-21ksoftirqd/113:49:591
7755992318,3cyclictest25-21ksoftirqd/113:49:591
7755992318,3cyclictest25-21ksoftirqd/111:47:301
7755992317,3cyclictest25-21ksoftirqd/114:48:541
7755992317,3cyclictest25-21ksoftirqd/111:39:431
7755992317,3cyclictest25-21ksoftirqd/110:57:431
7755992317,3cyclictest25-21ksoftirqd/110:15:251
7755992317,3cyclictest25-21ksoftirqd/109:42:151
7755992316,4cyclictest25-21ksoftirqd/111:04:471
7755992316,4cyclictest25-21ksoftirqd/110:41:061
7750992317,3cyclictest9-21ksoftirqd/011:31:070
7750992317,3cyclictest9-21ksoftirqd/010:11:090
299062230,1sleep10-21swapper/111:32:291
7755992217,3cyclictest25-21ksoftirqd/114:02:101
7755992216,3cyclictest25-21ksoftirqd/112:57:161
7755992216,3cyclictest25-21ksoftirqd/110:47:401
7755992215,4cyclictest25-21ksoftirqd/111:19:321
7755992215,4cyclictest25-21ksoftirqd/109:53:411
7755992215,4cyclictest11585-21ssh12:25:211
7755992214,4cyclictest23782-21fschecks_time14:17:251
7755992116,3cyclictest25-21ksoftirqd/113:07:271
7755992115,3cyclictest25-21ksoftirqd/110:11:071
7755992115,3cyclictest2210-21sh11:42:261
7755992114,4cyclictest8130-21sh14:33:471
7755992114,4cyclictest47050irq/101-ens3-Tx13:17:351
7755992114,4cyclictest25-21ksoftirqd/110:54:071
7755992114,4cyclictest21121-21sh13:42:151
7755992114,4cyclictest21121-21sh13:42:151
7755992114,4cyclictest15718-21sh12:29:041
7755992113,4cyclictest1649-21apt-key13:54:041
7755992113,4cyclictest1649-21apt-key13:54:041
7750992114,4cyclictest28250-21if_err_enp1s0.110:22:230
7750992114,4cyclictest28250-21if_err_enp1s0.110:22:230
775599201,8cyclictest229472cstates12:37:211
7755992014,3cyclictest7656-21seq12:21:581
7755992014,3cyclictest750-21sh12:13:501
7755992014,3cyclictest30241-21expr14:57:241
7755992014,3cyclictest25-21ksoftirqd/109:57:141
775599201,3cyclictest25249-21snmp_o5powerctl11:22:321
7755992013,5cyclictest47050irq/101-ens3-Tx13:37:391
7755992013,4cyclictest27061-21expr12:07:311
7755992012,5cyclictest15989-21apt13:37:081
775599197,9cyclictest2983-21gltestperf15:02:311
7755991913,3cyclictest3404-21ls13:22:411
7755991913,3cyclictest31114-21sh12:45:261
7755991913,3cyclictest25-21ksoftirqd/109:47:141
7755991913,3cyclictest19810-21interrupts11:12:251
7755991913,3cyclictest17891-21apt-get12:32:181
7755991912,4cyclictest20324-21ls10:07:041
7755991911,5cyclictest4910-21acpi10:42:181
108552191,14sleep110862-21/usr/sbin/munin11:52:171
775599180,15cyclictest32062-21cron10:32:041
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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