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2026-08-12 - 00:06
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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 376 highest latencies:
System rackbslot6.osadl.org (updated Tue Aug 11, 2026 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1068911800,5ptp4l401ktimersoftd/309:19:193
1881321500,4sleep31523499cyclictest12:06:523
1493521450,2sleep10-21swapper/111:29:201
152292750,1sleep30-21swapper/312:35:513
109642620,2sleep00-21swapper/013:38:430
56282600,4sleep31523499cyclictest11:54:033
288142600,2sleep20-21swapper/213:23:432
129992600,2sleep00-21swapper/013:07:190
281132520,2sleep20-21swapper/211:43:582
119722520,2sleep20-21swapper/213:05:332
1523499497,23cyclictest3299-1kworker/u9:112:58:193
148062474,30sleep20-21swapper/209:19:442
1500724223,8sleep10-21swapper/109:22:221
106891400,1ptp4l401ktimersoftd/314:23:493
15234993918,18cyclictest7076-21grep13:34:133
106891390,1ptp4l401ktimersoftd/314:28:023
106891390,1ptp4l401ktimersoftd/314:28:023
106891390,1ptp4l401ktimersoftd/313:54:593
106891390,1ptp4l401ktimersoftd/312:28:073
106891390,1ptp4l401ktimersoftd/312:14:173
1523499380,3cyclictest23045-21/usr/sbin/munin10:44:193
106891380,1ptp4l401ktimersoftd/313:19:013
106891380,1ptp4l401ktimersoftd/312:47:523
106891380,1ptp4l401ktimersoftd/312:39:433
106891380,1ptp4l401ktimersoftd/312:39:433
106891380,1ptp4l401ktimersoftd/312:00:363
106891380,1ptp4l401ktimersoftd/311:49:493
106891380,1ptp4l401ktimersoftd/311:26:523
106891380,0ptp4l401ktimersoftd/313:18:053
1523499370,4cyclictest17216-21/usr/sbin/munin10:34:073
106891370,1ptp4l401ktimersoftd/314:46:363
106891370,1ptp4l401ktimersoftd/314:37:373
106891370,1ptp4l401ktimersoftd/314:16:513
106891370,1ptp4l401ktimersoftd/314:12:493
106891370,1ptp4l401ktimersoftd/314:01:223
106891370,1ptp4l401ktimersoftd/313:53:433
106891370,1ptp4l401ktimersoftd/313:26:243
106891370,1ptp4l401ktimersoftd/313:10:033
106891370,1ptp4l401ktimersoftd/313:03:063
106891370,1ptp4l401ktimersoftd/311:45:143
106891370,1ptp4l401ktimersoftd/311:40:513
106891370,1ptp4l401ktimersoftd/309:49:043
106891370,0ptp4l401ktimersoftd/314:05:113
106891370,0ptp4l401ktimersoftd/311:30:573
15234993612,21cyclictest5109-21expr14:39:123
1523499360,4cyclictest930-21cat09:59:103
1523499360,4cyclictest28916-21ptp4l-jitter14:29:203
106891360,1ptp4l401ktimersoftd/314:51:193
106891360,1ptp4l401ktimersoftd/313:05:543
106891360,1ptp4l401ktimersoftd/312:33:293
106891360,1ptp4l401ktimersoftd/312:12:043
106891360,1ptp4l401ktimersoftd/309:33:013
106891360,0ptp4l401ktimersoftd/313:43:143
106891360,0ptp4l401ktimersoftd/312:20:183
292622350,2sleep10-21swapper/114:29:271
178212350,3sleep20-21swapper/213:44:232
106891350,1ptp4l401ktimersoftd/313:45:543
106891350,1ptp4l401ktimersoftd/313:31:413
106891350,1ptp4l401ktimersoftd/310:59:003
106891350,1ptp4l401ktimersoftd/309:39:213
106891350,0ptp4l401ktimersoftd/310:18:013
1523499349,22cyclictest31494-21expr11:04:063
1523499348,22cyclictest28660-21sed10:58:533
15234993411,20cyclictest5276-21cat10:09:073
1523499340,4cyclictest3080-21runrttasks11:10:003
106891340,1ptp4l401ktimersoftd/311:35:483
1523499338,22cyclictest16652-21sendmail10:33:513
15234993310,20cyclictest8143-21diskmemload12:53:053
1523499330,2cyclictest0-21swapper/310:49:113
1523499327,4cyclictest6671-21if_ens311:19:103
1523499319,18cyclictest15873-21fw_packets09:24:063
1523499317,22cyclictest11394-21grep10:19:213
1523499310,4cyclictest20303-21memory10:39:153
1523499308,19cyclictest21402-21basename09:34:073
1523499306,21cyclictest3839-21phc2sys-jitter10:04:133
1523499305,4cyclictest26619-21load09:44:113
1523499300,3cyclictest4900-21processes11:14:163
1523499295,3cyclictest31037-21irqrtprio09:54:073
1523499292,6cyclictest0-21swapper/310:24:103
15222992922,4cyclictest25-21ksoftirqd/114:13:411
1521799292,17cyclictest8143-21diskmemload13:29:080
1522899285,15cyclictest32152-21ssh12:54:072
15228992822,4cyclictest33-21ksoftirqd/210:14:102
15228992822,3cyclictest33-21ksoftirqd/214:28:512
15228992822,3cyclictest33-21ksoftirqd/214:28:512
15228992821,4cyclictest33-21ksoftirqd/214:33:012
15222992821,5cyclictest25-21ksoftirqd/113:09:001
15222992820,6cyclictest25-21ksoftirqd/113:01:501
133352286,10sleep00-21swapper/009:19:060
9132273,3sleep09-21ksoftirqd/009:59:110
202922270,1sleep10-21swapper/114:20:271
1522899273,17cyclictest14569-21ssh13:09:092
15228992720,4cyclictest33-21ksoftirqd/210:40:352
15228992713,7cyclictest321ktimersoftd/211:59:072
15222992720,4cyclictest25-21ksoftirqd/109:59:591
244142260,2sleep10-21swapper/113:51:491
1569122619,3sleep233-21ksoftirqd/212:36:392
15228992620,3cyclictest33-21ksoftirqd/214:48:202
15228992620,3cyclictest33-21ksoftirqd/213:55:542
15228992619,4cyclictest33-21ksoftirqd/213:39:572
15228992619,4cyclictest33-21ksoftirqd/210:47:382
15228992619,4cyclictest33-21ksoftirqd/210:33:572
15228992619,4cyclictest33-21ksoftirqd/210:10:322
15222992619,4cyclictest25-21ksoftirqd/112:23:201
15222992619,4cyclictest25-21ksoftirqd/109:47:151
15217992620,3cyclictest22318-21sh14:23:570
15217992617,5cyclictest19452-21ssh13:14:090
15228992519,3cyclictest33-21ksoftirqd/212:30:192
15228992518,4cyclictest12834-21ps10:24:102
15228992512,4cyclictest233272latency12:44:152
15222992519,3cyclictest25-21ksoftirqd/111:09:311
15222992518,4cyclictest25-21ksoftirqd/110:40:501
15222992518,4cyclictest25-21ksoftirqd/110:24:241
15222992518,4cyclictest25-21ksoftirqd/109:24:381
15222992518,4cyclictest19967-21ssh12:40:341
15222992518,4cyclictest19967-21ssh12:40:341
15217992520,3cyclictest9-21ksoftirqd/011:44:270
15217992519,3cyclictest9-21ksoftirqd/011:04:050
15217992519,3cyclictest9-21ksoftirqd/010:52:290
15217992519,3cyclictest9-21ksoftirqd/009:57:010
15217992519,3cyclictest9-21ksoftirqd/009:50:210
15217992519,3cyclictest4746-21grep12:59:100
15217992515,8cyclictest9-21ksoftirqd/011:18:530
1522899242,14cyclictest14807-21ssh14:49:112
1522899242,13cyclictest47150irq/102-ens3-Tx11:54:042
15228992418,3cyclictest33-21ksoftirqd/211:43:032
15228992417,4cyclictest33-21ksoftirqd/211:12:072
15228992417,4cyclictest33-21ksoftirqd/209:46:482
15228992415,6cyclictest23948-21ssh13:51:002
1522899240,3cyclictest121rcu_preempt12:16:152
15222992419,3cyclictest25-21ksoftirqd/112:24:151
15222992419,3cyclictest25-21ksoftirqd/112:14:111
15222992418,3cyclictest25-21ksoftirqd/112:44:141
15222992417,4cyclictest25-21ksoftirqd/114:45:371
15222992417,4cyclictest25-21ksoftirqd/111:05:191
15217992418,3cyclictest9-21ksoftirqd/012:51:380
15217992418,3cyclictest24343-21apt-get13:19:000
15217992417,4cyclictest9-21ksoftirqd/009:32:120
1522899238,12cyclictest3445-21cstates14:04:092
15228992317,3cyclictest33-21ksoftirqd/211:22:472
15228992316,4cyclictest33-21ksoftirqd/210:50:272
15228992316,4cyclictest33-21ksoftirqd/210:31:402
15222992317,3cyclictest25-21ksoftirqd/113:30:091
15222992317,3cyclictest25-21ksoftirqd/110:29:031
15222992316,4cyclictest25-21ksoftirqd/112:04:251
15222992316,4cyclictest25-21ksoftirqd/110:21:551
15222992316,4cyclictest13293-21kworker/1:111:59:151
1522299231,18cyclictest12931-21perl12:34:101
1522299230,20cyclictest0-21swapper/109:28:551
1521799232,13cyclictest15523-21ssh12:04:070
15217992317,4cyclictest9-21ksoftirqd/012:39:250
15217992317,4cyclictest9-21ksoftirqd/012:39:250
15217992317,3cyclictest9-21ksoftirqd/011:10:270
15217992317,3cyclictest9-21ksoftirqd/010:31:370
15217992317,3cyclictest9-21ksoftirqd/010:15:200
1521799231,4cyclictest13452-21ssh12:01:070
1521799231,19cyclictest9609-21memory11:24:140
1521799231,19cyclictest7135-21snmp_o5powerctl11:54:180
1521799231,19cyclictest11394-21snmp_o5powerctl14:44:240
1521799231,19cyclictest0-21swapper/012:15:070
269862220,4sleep01521799cyclictest09:44:170
222482220,2sleep08143-21diskmemload11:37:470
193902221,17sleep20-21swapper/212:07:522
1522899223,16cyclictest19044-21strings14:19:222
15228992217,3cyclictest33-21ksoftirqd/212:50:282
15228992215,4cyclictest33-21ksoftirqd/214:14:342
15228992215,4cyclictest33-21ksoftirqd/209:25:562
15228992215,4cyclictest16671-21sh11:31:402
15228992215,4cyclictest1032-21basename11:08:522
1522899221,18cyclictest8143-21diskmemload13:30:492
1522899221,18cyclictest29348-21snmp_o5powerctl09:49:162
1522899221,18cyclictest24614-21snmp_o5powerctl09:39:152
1522899221,18cyclictest20723-21diskstats12:09:112
1522899220,19cyclictest8143-21diskmemload11:37:102
1522299224,10cyclictest6083-21apt-get11:19:051
15222992216,3cyclictest25-21ksoftirqd/113:47:151
15222992216,3cyclictest25-21ksoftirqd/113:19:431
15222992216,3cyclictest25-21ksoftirqd/110:05:161
15222992215,4cyclictest9966-21gltestperf13:04:131
15222992215,4cyclictest29274-21fgrep09:49:131
15222992215,4cyclictest18994-21sh11:34:111
15222992215,4cyclictest10201-21latency_hist11:58:541
1522299221,4cyclictest22249-21snmp_o5powerctl09:34:151
1522299221,3cyclictest0-21swapper/113:55:011
15222992212,6cyclictest233-21systemd-journal11:03:521
1522299221,18cyclictest6644-21apt-get13:34:091
1521799222,17cyclictest8267-21cpuspeed_turbos14:09:130
15217992217,3cyclictest9-21ksoftirqd/014:04:150
15217992216,3cyclictest9-21ksoftirqd/010:24:270
15217992216,3cyclictest9-21ksoftirqd/010:06:360
15217992216,3cyclictest1163-21snmp_o5powerctl12:54:200
15228992115,4cyclictest33-21ksoftirqd/212:42:322
15228992115,4cyclictest33-21ksoftirqd/212:42:322
15228992115,3cyclictest33-21ksoftirqd/211:53:342
15228992115,3cyclictest33-21ksoftirqd/210:55:312
15228992115,3cyclictest33-21ksoftirqd/210:23:512
15228992114,4cyclictest33-21ksoftirqd/211:03:362
15228992114,4cyclictest22595-21users09:34:202
15228992114,4cyclictest20001-21sh13:14:142
15228992113,5cyclictest30992-21grep13:59:112
1522899210,4cyclictest10784-21ssh13:38:252
1522899210,18cyclictest8143-21diskmemload13:02:362
1522299213,12cyclictest20441-21ssh12:09:081
15222992115,3cyclictest25-21ksoftirqd/110:51:101
15222992115,3cyclictest25-21ksoftirqd/110:44:431
15222992115,3cyclictest16131-21grep14:49:201
15222992114,4cyclictest5937-21kworker/1:014:39:171
15222992114,4cyclictest3020-21sh11:50:051
15222992114,4cyclictest25-21ksoftirqd/114:34:251
15222992114,4cyclictest25-21ksoftirqd/111:40:281
15222992113,5cyclictest25-21ksoftirqd/112:50:341
1522299211,14cyclictest13021-21ssh14:14:111
1522299210,3cyclictest26357-21chrt10:53:591
15217992116,3cyclictest9-21ksoftirqd/014:36:310
15217992116,3cyclictest9-21ksoftirqd/010:12:390
15217992115,3cyclictest9-21ksoftirqd/010:43:540
15217992115,3cyclictest9-21ksoftirqd/010:20:180
15217992115,3cyclictest9-21ksoftirqd/009:25:500
15217992115,3cyclictest1055-21runrttasks12:32:040
15217992114,4cyclictest18606-21sh13:13:140
1521799211,18cyclictest0-21swapper/014:24:100
1521799211,18cyclictest0-21swapper/014:24:100
1521799211,18cyclictest0-21swapper/012:28:490
1521799210,18cyclictest21908-21/usr/sbin/munin13:49:150
136792212,3sleep0121rcu_preempt12:34:160
1522899202,3cyclictest2066-21seq12:23:312
15228992014,3cyclictest1183-21open_files14:34:182
15228992013,4cyclictest8750-21cat11:24:072
15228992013,4cyclictest8076-21sh14:41:492
15228992013,4cyclictest10776-21sh14:10:502
15228992012,4cyclictest29503-21grep13:24:092
1522899201,16cyclictest4915-21latency_hist10:08:522
1522899200,16cyclictest32644-21cut09:58:522
15222992014,3cyclictest29728-21snmp_o5powerctl11:44:211
15222992014,3cyclictest25-21ksoftirqd/113:24:311
15222992013,4cyclictest7131-21sendmail10:13:521
15222992013,4cyclictest31985-21tail13:59:181
1522299201,2cyclictest8143-21diskmemload12:57:241
1522299201,2cyclictest0-21swapper/110:14:061
15222992012,4cyclictest20463-21latency13:14:161
1522299201,17cyclictest0-21swapper/109:56:521
1522299201,16cyclictest11514-21apt-get13:39:111
1522299200,4cyclictest3521-21cstates14:04:091
1522299200,18cyclictest0-21swapper/114:24:421
1522299200,18cyclictest0-21swapper/114:24:421
1522299200,18cyclictest0-21swapper/111:14:091
1522299200,18cyclictest0-21swapper/110:35:371
1522299200,18cyclictest0-21swapper/109:42:391
15217992015,3cyclictest9-21ksoftirqd/014:43:470
15217992015,3cyclictest9-21ksoftirqd/014:14:280
15217992014,3cyclictest8143-21diskmemload11:29:060
15217992014,3cyclictest23198-21/usr/sbin/munin09:39:070
15217992014,3cyclictest16634-21diskstats13:44:110
15217992013,4cyclictest8143-21diskmemload12:23:060
15217992013,4cyclictest8143-21diskmemload11:42:000
15217992013,4cyclictest32659-21grep13:59:270
15217992013,4cyclictest28734-21cat10:59:030
15217992013,4cyclictest26681-21if_ens313:54:150
15217992013,4cyclictest20437-21phc2sys10:39:170
1521799201,2cyclictest0-21swapper/011:53:140
1521799201,17cyclictest0-21swapper/012:44:560
1521799200,18cyclictest0-21swapper/013:43:010
15228991913,3cyclictest18740-21cat09:29:042
1522899190,9cyclictest4183-21grep11:14:102
1522899190,2cyclictest0-21swapper/212:24:072
1522299194,9cyclictest8562-21apt-get11:24:061
1522299191,15cyclictest7902-21diskstats12:29:101
15217991914,2cyclictest9-21ksoftirqd/010:57:260
15217991913,3cyclictest8143-21diskmemload14:49:080
15217991913,3cyclictest17323-21fschecks_time10:34:080
1521799191,16cyclictest0-21swapper/012:10:030
1521799190,4cyclictest0-21swapper/014:30:390
15228991813,3cyclictest33-21ksoftirqd/209:59:002
15217991813,3cyclictest9-21ksoftirqd/011:18:580
15217991812,3cyclictest8143-21diskmemload13:24:000
15217991810,4cyclictest21015-21cpuspeed_turbos09:34:040
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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