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2026-04-15 - 04:04
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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 Apr 15, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2927521460,3sleep12041599cyclictest22:33:401
2205121390,3sleep12041599cyclictest22:58:491
1855521290,4sleep10-21swapper/120:13:381
106891970,4ptp4l401ktimersoftd/320:16:323
106891720,1ptp4l401ktimersoftd/320:48:403
242232710,2sleep10-21swapper/122:28:381
242232710,2sleep10-21swapper/122:28:381
106891700,2ptp4l401ktimersoftd/301:14:003
106891690,9ptp4l401ktimersoftd/323:18:463
106891690,1ptp4l401ktimersoftd/323:17:563
106891690,1ptp4l401ktimersoftd/320:25:573
43312670,3sleep233-21ksoftirqd/223:48:412
200382664,10sleep00-21swapper/020:14:510
106891650,1ptp4l401ktimersoftd/322:40:503
131052620,2sleep00-21swapper/022:49:170
282772610,5sleep028268-21apt-get00:13:400
282772610,5sleep028268-21apt-get00:13:400
106891580,1ptp4l401ktimersoftd/323:31:553
106891580,1ptp4l401ktimersoftd/301:06:013
139052570,3sleep013214-21/usr/sbin/munin01:38:470
106891560,1ptp4l401ktimersoftd/322:35:293
146062550,2sleep30-21swapper/323:24:213
106891540,1ptp4l401ktimersoftd/300:47:133
221232510,2sleep20-21swapper/200:39:352
139982490,1sleep10-21swapper/122:50:501
106891490,1ptp4l401ktimersoftd/301:31:453
7622460,1sleep00-21swapper/023:10:400
143291460,1getstats0-21swapper/322:02:493
2042099431,27cyclictest27217-21awk21:38:242
106891430,1ptp4l401ktimersoftd/323:10:583
106891420,7ptp4l401ktimersoftd/301:36:303
2042099419,20cyclictest19940-21ptp4l00:03:492
81372400,3sleep12041599cyclictest00:25:251
153512400,1sleep20-21swapper/200:33:412
123092400,2sleep20-21swapper/201:37:292
106891400,1ptp4l401ktimersoftd/301:46:503
20420993922,14cyclictest33-21ksoftirqd/220:33:342
20420993922,14cyclictest33-21ksoftirqd/220:33:342
106891390,1ptp4l401ktimersoftd/322:25:053
106891390,1ptp4l401ktimersoftd/322:25:053
106891390,1ptp4l401ktimersoftd/301:43:043
2042099382,28cyclictest1936-21apt-get00:53:412
106891380,1ptp4l401ktimersoftd/322:59:463
106891380,1ptp4l401ktimersoftd/322:30:203
106891380,1ptp4l401ktimersoftd/322:30:203
106891380,1ptp4l401ktimersoftd/301:27:243
106891380,1ptp4l401ktimersoftd/300:25:453
106891380,0ptp4l401ktimersoftd/323:07:293
106891370,1ptp4l401ktimersoftd/323:51:513
106891370,1ptp4l401ktimersoftd/323:41:553
106891370,1ptp4l401ktimersoftd/323:36:243
106891370,1ptp4l401ktimersoftd/322:54:203
106891370,1ptp4l401ktimersoftd/321:28:593
106891370,1ptp4l401ktimersoftd/301:19:253
106891370,1ptp4l401ktimersoftd/301:00:233
106891370,1ptp4l401ktimersoftd/300:57:143
106891370,1ptp4l401ktimersoftd/300:41:153
106891370,1ptp4l401ktimersoftd/300:34:183
106891370,1ptp4l401ktimersoftd/300:31:443
106891370,1ptp4l401ktimersoftd/300:10:393
106891370,0ptp4l401ktimersoftd/322:18:363
2042099364,25cyclictest7696-21apt-get23:18:362
106891360,1ptp4l401ktimersoftd/323:59:373
106891360,1ptp4l401ktimersoftd/323:46:113
106891360,1ptp4l401ktimersoftd/300:13:373
106891360,1ptp4l401ktimersoftd/300:13:373
106891360,0ptp4l401ktimersoftd/301:11:573
106891360,0ptp4l401ktimersoftd/300:48:453
106891360,0ptp4l401ktimersoftd/300:20:443
20424993529,3cyclictest41-21ksoftirqd/322:08:243
2042099353,24cyclictest31042-21apt-get20:38:342
2042099352,25cyclictest23922-21apt-get20:23:352
2042099351,20cyclictest27904-21snmp_o5powerctl01:18:542
2042099350,4cyclictest9609-21chrt20:58:502
106891350,0ptp4l401ktimersoftd/321:46:583
106891350,0ptp4l401ktimersoftd/321:41:403
106891350,0ptp4l401ktimersoftd/300:04:243
2042099342,26cyclictest2421-21apt-get21:53:382
2042099342,25cyclictest7153-21apt-get22:03:362
2042099342,25cyclictest31282-21apt-get01:23:412
2042099342,25cyclictest20702-21apt-get22:58:382
20420993418,13cyclictest33-21ksoftirqd/221:45:392
20420993414,17cyclictest7910-21sed22:43:542
20420993414,17cyclictest731-21sh00:52:052
20420993414,17cyclictest21523-21sh22:24:362
20420993414,17cyclictest21523-21sh22:24:362
2042099341,30cyclictest13726-21gltestperf01:38:462
2042099341,29cyclictest11722-21mailstats00:28:522
2042099340,2cyclictest0-21swapper/222:19:242
20415993417,14cyclictest25-21ksoftirqd/123:33:391
106891340,1ptp4l401ktimersoftd/322:48:513
106891340,1ptp4l401ktimersoftd/321:12:363
211602330,2sleep10-21swapper/123:32:221
2042099332,26cyclictest11553-21apt-get01:03:422
20420993314,16cyclictest31218-21sh22:34:362
20420993314,16cyclictest17872-21switchtime01:08:572
20420993314,16cyclictest14663-21sh22:52:012
20420993313,17cyclictest18066-21sh22:54:302
20420993313,16cyclictest13771-21acpi23:58:392
2042099331,26cyclictest31830-21apt-get23:43:392
2042099331,26cyclictest0-21swapper/220:43:352
2042099330,4cyclictest3939-21sed23:13:452
2042099330,4cyclictest31111-21taskset00:15:432
2042099330,4cyclictest31111-21taskset00:15:432
2042099330,4cyclictest29210-21sed21:38:512
2042099330,4cyclictest25650-21switchtime22:28:522
2042099330,4cyclictest25650-21switchtime22:28:522
2042099330,3cyclictest27260-21df23:38:422
2042099330,3cyclictest10781-21tail22:08:482
20424993227,3cyclictest41-21ksoftirqd/320:23:223
20424993227,3cyclictest41-21ksoftirqd/320:23:223
20424993226,4cyclictest41-21ksoftirqd/321:08:243
2042099323,22cyclictest30358-21apt-get23:08:382
2042099322,26cyclictest2109-21latency_hist21:53:242
2042099322,24cyclictest0-21swapper/222:13:382
2042099321,26cyclictest3633-21taskset20:48:382
20420993212,17cyclictest14177-21timerwakeupswit23:23:562
20420993212,17cyclictest12085-21sh23:56:062
2042099320,4cyclictest6933-21snmp_o5powerctl00:23:552
2042099320,4cyclictest19235-21ssh21:18:512
2042099320,3cyclictest19953-21sh23:30:142
2042099320,2cyclictest0-21swapper/201:47:132
2042099320,2cyclictest0-21swapper/200:44:272
2041099323,2cyclictest121rcu_preempt23:30:180
106891320,1ptp4l401ktimersoftd/322:44:023
106891320,1ptp4l401ktimersoftd/322:17:323
2042099313,22cyclictest3696-21apt-get01:28:422
2042099312,25cyclictest13479-21grep21:08:392
2042099312,23cyclictest0-21swapper/221:28:352
20420993111,17cyclictest1055-21runrttasks01:14:022
2042099310,3cyclictest13974-21diskmemload23:33:502
2042099310,3cyclictest10772-21fschecks_count21:03:382
2042099310,2cyclictest0-21swapper/222:40:042
2042099310,2cyclictest0-21swapper/200:58:482
2042099310,2cyclictest0-21swapper/200:10:222
187192316,12sleep20-21swapper/220:13:402
106891310,1ptp4l401ktimersoftd/320:31:053
106891310,0ptp4l401ktimersoftd/323:53:593
2042099301,25cyclictest26402-21grep20:28:362
2042099301,25cyclictest21140-21sed20:18:372
2042099301,25cyclictest21140-21sed20:18:372
2042099300,3cyclictest26451-21irqstats23:03:452
2042099300,2cyclictest0-21swapper/200:23:032
20410993025,3cyclictest9-21ksoftirqd/020:58:230
106891300,9ptp4l401ktimersoftd/321:14:193
106891300,1ptp4l401ktimersoftd/321:48:543
106891300,1ptp4l401ktimersoftd/321:19:413
106891300,0ptp4l401ktimersoftd/321:35:003
2042099298,18cyclictest6450-21cut20:53:422
2042099291,24cyclictest20074-21latency_hist21:23:242
2042099290,2cyclictest0-21swapper/221:58:432
20415992919,3cyclictest25-21ksoftirqd/100:33:041
106891290,0ptp4l401ktimersoftd/321:00:033
20424992823,3cyclictest41-21ksoftirqd/320:33:413
20424992823,3cyclictest41-21ksoftirqd/320:33:413
2042099281,24cyclictest16406-21/usr/sbin/munin21:13:422
106891280,1ptp4l401ktimersoftd/322:08:253
20415992720,4cyclictest27262-21ssh00:45:121
20410992721,3cyclictest9-21ksoftirqd/020:44:180
277962260,2sleep013974-21diskmemload00:46:090
20424992620,3cyclictest41-21ksoftirqd/321:23:383
20415992621,3cyclictest25-21ksoftirqd/120:38:221
20415992621,3cyclictest25-21ksoftirqd/120:38:221
20415992620,4cyclictest25-21ksoftirqd/101:12:071
20410992620,4cyclictest4076-21kworker/0:000:53:480
20410992617,5cyclictest101ktimersoftd/023:23:390
2041599253,16cyclictest2909-21apt-get23:13:371
20415992520,3cyclictest25-21ksoftirqd/101:18:341
20415992519,3cyclictest25-21ksoftirqd/121:22:341
20415992519,3cyclictest25-21ksoftirqd/101:03:551
20415992518,4cyclictest25-21ksoftirqd/120:41:431
20415992518,4cyclictest25-21ksoftirqd/120:30:311
2041099254,16cyclictest0-21swapper/023:13:370
20410992519,3cyclictest9-21ksoftirqd/021:54:270
20410992519,3cyclictest9-21ksoftirqd/021:48:190
20410992519,3cyclictest9-21ksoftirqd/021:38:020
20410992519,3cyclictest22943-21munin-node20:23:260
20410992512,10cyclictest3830-21sh22:39:580
202822518,3sleep09-21ksoftirqd/001:26:200
168982250,2sleep00-21swapper/022:20:030
106891250,1ptp4l401ktimersoftd/320:44:213
106891250,1ptp4l401ktimersoftd/320:38:353
106891250,0ptp4l401ktimersoftd/321:56:193
20415992418,4cyclictest25-21ksoftirqd/121:38:351
20415992418,3cyclictest25-21ksoftirqd/121:33:361
20415992417,4cyclictest25-21ksoftirqd/121:29:481
20410992419,3cyclictest9-21ksoftirqd/001:33:410
20410992418,3cyclictest9-21ksoftirqd/023:48:470
20410992418,3cyclictest9-21ksoftirqd/022:11:390
20410992418,3cyclictest9-21ksoftirqd/021:14:190
20410992417,4cyclictest9-21ksoftirqd/020:59:040
2041099241,20cyclictest22679-21grep23:33:430
189122240,2sleep10-21swapper/101:43:461
106891240,1ptp4l401ktimersoftd/320:53:473
20415992318,3cyclictest25-21ksoftirqd/120:23:241
20415992317,3cyclictest25-21ksoftirqd/100:52:401
20415992316,4cyclictest25-21ksoftirqd/120:48:171
2041599231,3cyclictest13254-21snmp_o5powerctl22:13:531
2041599231,20cyclictest0-21swapper/123:04:511
2041599231,19cyclictest14402-21snmp_o5powerctl21:08:481
2041599230,4cyclictest2812-21rm01:27:411
20410992318,3cyclictest9-21ksoftirqd/022:33:400
20410992318,3cyclictest9-21ksoftirqd/022:01:430
20410992317,3cyclictest9-21ksoftirqd/023:53:480
20410992317,3cyclictest9-21ksoftirqd/021:09:360
20410992316,4cyclictest9-21ksoftirqd/021:52:320
20410992316,4cyclictest1183-21grep23:43:560
2041599221,7cyclictest27861-21cron00:13:271
20415992217,3cyclictest25-21ksoftirqd/121:47:341
20415992217,3cyclictest25-21ksoftirqd/100:38:571
20415992216,4cyclictest25-21ksoftirqd/123:41:231
20415992216,4cyclictest25-21ksoftirqd/122:06:541
20415992216,4cyclictest25-21ksoftirqd/100:34:041
20415992216,3cyclictest25-21ksoftirqd/122:11:161
20415992216,3cyclictest25-21ksoftirqd/122:02:321
20415992216,3cyclictest25-21ksoftirqd/121:27:281
2041599221,19cyclictest0-21swapper/122:39:221
2041599220,4cyclictest367-21ssh23:10:031
20410992217,3cyclictest9-21ksoftirqd/000:08:570
20410992216,3cyclictest9-21ksoftirqd/023:03:220
20410992216,3cyclictest9-21ksoftirqd/022:06:010
20410992216,3cyclictest9-21ksoftirqd/020:32:520
20410992216,3cyclictest29335-21tr20:33:410
20410992216,3cyclictest29335-21tr20:33:410
20410992215,4cyclictest785-21cut00:18:410
2041099221,2cyclictest0-21swapper/021:27:160
20415992116,3cyclictest25-21ksoftirqd/122:57:311
20415992116,3cyclictest25-21ksoftirqd/120:55:001
20415992116,3cyclictest25-21ksoftirqd/120:50:411
20415992116,3cyclictest14342-21head23:23:561
20415992115,4cyclictest25-21ksoftirqd/121:15:511
20415992115,4cyclictest22029-21sed01:13:491
20415992115,3cyclictest25-21ksoftirqd/121:55:511
20415992115,3cyclictest25-21ksoftirqd/121:49:131
20415992114,4cyclictest6655-21/usr/sbin/munin00:58:441
20415992114,4cyclictest13413-21cpuspeed_turbos01:38:431
2041599211,18cyclictest17445-21ssh22:20:581
2041599211,17cyclictest0-21swapper/123:53:361
2041599211,17cyclictest0-21swapper/100:55:011
2041599211,17cyclictest0-21swapper/100:21:321
20410992115,3cyclictest9-21ksoftirqd/021:22:030
20410992115,3cyclictest6383-21sh01:30:290
20410992114,4cyclictest9-21ksoftirqd/023:03:420
20410992114,4cyclictest9-21ksoftirqd/022:28:050
20410992114,4cyclictest9-21ksoftirqd/022:28:050
20410992114,4cyclictest9-21ksoftirqd/000:05:010
20410992114,4cyclictest24858-21gpgconf21:33:240
20410992114,4cyclictest22174-21timerwakeupswit20:18:500
20410992114,4cyclictest22174-21timerwakeupswit20:18:500
20410992114,4cyclictest17190-21processes22:53:480
20410992113,4cyclictest18085-21cpu01:43:410
20410992113,4cyclictest11934-21timerandwakeup00:28:570
2041099211,2cyclictest0-21swapper/021:39:490
2041099210,2cyclictest0-21swapper/020:52:510
2041599202,15cyclictest9464-21grep01:33:491
20415992014,4cyclictest25-21ksoftirqd/100:03:371
20415992014,3cyclictest8042-21sh23:52:251
20415992014,3cyclictest7994-21unixbench_singl22:43:551
20415992014,3cyclictest25-21ksoftirqd/123:43:341
20415992014,3cyclictest21944-21sendmail_mailst20:18:441
20415992014,3cyclictest21944-21sendmail_mailst20:18:441
20415992013,4cyclictest19595-21sh22:23:421
20415992013,4cyclictest19595-21sh22:23:421
2041599201,17cyclictest0-21swapper/120:58:481
2041599200,18cyclictest0-21swapper/123:19:511
2041599200,18cyclictest0-21swapper/121:06:201
2041099204,10cyclictest24145-21ssh22:28:360
2041099204,10cyclictest24145-21ssh22:28:360
2041099202,15cyclictest12298-21grep22:13:430
2041099201,3cyclictest954-21ssh00:52:290
2041099201,3cyclictest15819-21ssh23:59:120
20410992013,4cyclictest31683-21interrupts20:38:410
20410992012,4cyclictest13974-21diskmemload23:40:540
2041099201,16cyclictest21279-21apt-get01:13:420
2041099200,2cyclictest0-21swapper/021:04:080
20415991913,3cyclictest15445-21sh23:58:561
20415991912,4cyclictest3932-21expr01:28:431
2041599190,17cyclictest0-21swapper/100:13:481
2041599190,17cyclictest0-21swapper/100:13:481
2041099193,9cyclictest16386-21apt-get01:08:420
20410991914,3cyclictest9-21ksoftirqd/001:19:480
20410991913,4cyclictest6579-21grep22:43:410
20410991913,3cyclictest20426-21tail00:38:440
20410991913,3cyclictest13974-21diskmemload23:21:150
20410991912,5cyclictest46950irq/100-ens3-Tx00:23:480
20410991912,4cyclictest13974-21diskmemload01:03:360
20410991912,4cyclictest13974-21diskmemload00:37:590
2041099183,9cyclictest6737-21apt-get00:58:390
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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