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2026-03-15 - 10:06
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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 highest latencies:
System rackbslot6.osadl.org (updated Sun Mar 15, 2026 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3217021750,4sleep23214699cyclictest21:06:322
312921690,4sleep03213699cyclictest23:16:340
2495121450,5sleep13214199cyclictest00:44:361
565421310,3sleep23214699cyclictest21:16:442
2713621310,2sleep00-21swapper/022:01:420
1068911040,4ptp4l401ktimersoftd/319:57:283
193722650,1sleep10-21swapper/100:06:341
317642614,10sleep20-21swapper/219:57:422
55742580,2sleep00-21swapper/020:11:260
55742580,2sleep00-21swapper/020:11:260
32141994942,4cyclictest25-21ksoftirqd/100:31:321
105791480,5getstats3215499cyclictest20:42:163
32141994739,4cyclictest25-21ksoftirqd/122:56:291
189322470,2sleep30-21swapper/322:59:353
32141994640,3cyclictest25-21ksoftirqd/122:16:291
32141994235,4cyclictest25-21ksoftirqd/123:16:301
106891400,1ptp4l401ktimersoftd/300:27:093
106891390,1ptp4l401ktimersoftd/323:47:173
106891390,1ptp4l401ktimersoftd/323:47:173
106891390,1ptp4l401ktimersoftd/301:18:483
106891390,1ptp4l401ktimersoftd/301:13:503
106891390,1ptp4l401ktimersoftd/300:15:533
106891390,1ptp4l401ktimersoftd/300:08:413
3215499383,27cyclictest25265-21apt-get23:06:323
3215499380,4cyclictest28247-21tune2fs22:36:323
32141993830,4cyclictest25-21ksoftirqd/101:06:331
32136993819,11cyclictest46950irq/100-ens3-Tx00:46:310
3184023820,8sleep00-21swapper/019:58:410
106891380,1ptp4l401ktimersoftd/323:53:353
106891380,1ptp4l401ktimersoftd/323:40:093
106891380,1ptp4l401ktimersoftd/323:16:443
106891380,1ptp4l401ktimersoftd/322:53:113
106891380,1ptp4l401ktimersoftd/322:34:083
106891380,1ptp4l401ktimersoftd/322:28:593
106891380,1ptp4l401ktimersoftd/322:13:183
106891380,1ptp4l401ktimersoftd/322:05:453
106891380,1ptp4l401ktimersoftd/301:31:123
106891380,1ptp4l401ktimersoftd/301:21:523
106891380,1ptp4l401ktimersoftd/300:17:193
32154993710,23cyclictest20977-21expr21:51:293
3215499370,4cyclictest5162-21mailstats00:56:433
3215499370,4cyclictest17441-21/usr/sbin/munin23:31:373
32146993730,4cyclictest2027-21cron20:06:132
32146993730,4cyclictest2027-21cron20:06:132
3214199371,33cyclictest12179-21cron20:26:141
106891370,1ptp4l401ktimersoftd/323:43:243
106891370,1ptp4l401ktimersoftd/323:27:463
106891370,1ptp4l401ktimersoftd/322:06:543
106891370,1ptp4l401ktimersoftd/301:02:433
106891370,1ptp4l401ktimersoftd/300:54:043
106891370,1ptp4l401ktimersoftd/300:42:023
106891370,1ptp4l401ktimersoftd/300:38:453
106891370,1ptp4l401ktimersoftd/300:33:203
106891370,1ptp4l401ktimersoftd/300:22:473
106891360,1ptp4l401ktimersoftd/323:22:423
106891360,1ptp4l401ktimersoftd/300:05:243
106891360,0ptp4l401ktimersoftd/322:00:143
106891360,0ptp4l401ktimersoftd/322:00:143
3215499352,30cyclictest13411-21ls21:36:153
32154993510,22cyclictest16621-21if_enp1s0.121:41:323
32146993515,17cyclictest33-21ksoftirqd/223:46:192
32146993515,17cyclictest33-21ksoftirqd/223:46:192
32146993515,12cyclictest47150irq/102-ens3-Tx22:26:282
3215499342,25cyclictest22183-21apt-get20:46:263
32154993414,17cyclictest27954-21timerandwakeup00:46:483
32154993413,18cyclictest4229-21ptp4l20:06:363
32154993413,18cyclictest30147-21sed21:01:323
32154993411,19cyclictest3851-21latency_hist21:16:163
3215499340,7cyclictest0-21swapper/322:41:443
32154993312,18cyclictest8724-21cat22:16:353
32154993312,18cyclictest5599-21sed21:16:443
32154993311,19cyclictest13922-21timedrift20:26:413
3215499330,3cyclictest5817-21diskstats22:46:323
3215499330,3cyclictest17339-21sh22:25:563
3215499330,3cyclictest14586-21irqrtprio01:06:393
32141993324,5cyclictest25-21ksoftirqd/123:41:311
3215499328,20cyclictest1106-21tail20:01:353
3215499328,20cyclictest1106-21tail20:01:353
3215499327,21cyclictest17164-21/usr/sbin/munin20:36:323
3215499322,4cyclictest0-21swapper/320:21:263
3215499320,4cyclictest7732-21snmp_o5powerctl21:21:423
32141993227,3cyclictest25-21ksoftirqd/123:31:181
32141993226,3cyclictest25-21ksoftirqd/101:31:201
32141993223,5cyclictest25-21ksoftirqd/123:56:311
32141993223,5cyclictest25-21ksoftirqd/100:16:301
31742320,2sleep00-21swapper/001:27:390
3215499318,20cyclictest25149-21if_ens320:51:313
3215499317,20cyclictest6049-21irqrtprio20:11:313
3215499317,20cyclictest6049-21irqrtprio20:11:313
3215499314,3cyclictest31736-21sort21:06:283
3215499310,3cyclictest31290-21rm23:11:373
32146993124,4cyclictest33-21ksoftirqd/220:36:142
32141993125,3cyclictest25-21ksoftirqd/123:11:181
32141993125,3cyclictest25-21ksoftirqd/100:31:201
32141993118,4cyclictest25-21ksoftirqd/123:46:451
32141993118,4cyclictest25-21ksoftirqd/123:46:451
3215499308,19cyclictest14025-21fschecks_count21:36:303
3215499307,20cyclictest16369-21cat20:31:413
3215499307,19cyclictest11027-21latency_hist21:31:153
3215499304,3cyclictest9293-21wc20:16:433
3215499301,3cyclictest0-21swapper/323:01:293
32141993025,3cyclictest25-21ksoftirqd/100:56:491
32141993024,3cyclictest25-21ksoftirqd/123:11:351
32141993021,5cyclictest25-21ksoftirqd/122:01:271
32141993019,6cyclictest25-21ksoftirqd/121:46:271
32136993024,3cyclictest9-21ksoftirqd/023:56:320
3215499290,4cyclictest19421-21memory21:46:353
3215499290,3cyclictest27417-21hddtemp_smartct20:56:303
32141992924,3cyclictest25-21ksoftirqd/123:26:181
32141992924,3cyclictest25-21ksoftirqd/121:21:161
32141992924,3cyclictest25-21ksoftirqd/100:06:191
32141992919,5cyclictest25-21ksoftirqd/121:31:271
3213699290,26cyclictest15767-21cron21:41:150
306212295,10sleep10-21swapper/119:56:321
1013622923,3sleep233-21ksoftirqd/222:17:072
32141992823,3cyclictest25-21ksoftirqd/122:06:351
32141992823,3cyclictest25-21ksoftirqd/121:11:151
32141992823,3cyclictest25-21ksoftirqd/120:51:141
32141992823,3cyclictest25-21ksoftirqd/120:36:141
32141992823,3cyclictest241ktimersoftd/100:51:391
32141992822,4cyclictest25-21ksoftirqd/123:39:151
32141992822,3cyclictest25-21ksoftirqd/122:31:291
80222270,5sleep13214199cyclictest20:16:291
3215499270,4cyclictest9539-21basename23:56:303
32146992721,3cyclictest33-21ksoftirqd/200:31:402
32141992722,3cyclictest25-21ksoftirqd/122:51:311
32141992722,3cyclictest25-21ksoftirqd/101:11:331
32141992722,3cyclictest25-21ksoftirqd/100:26:191
32141992721,3cyclictest25-21ksoftirqd/121:44:461
32141992721,3cyclictest25-21ksoftirqd/100:41:201
32141992717,9cyclictest25-21ksoftirqd/122:46:351
32136992721,3cyclictest9-21ksoftirqd/021:36:150
32136992721,3cyclictest9-21ksoftirqd/020:06:130
32136992721,3cyclictest9-21ksoftirqd/020:06:130
32136992720,4cyclictest9-21ksoftirqd/022:31:340
32146992621,3cyclictest33-21ksoftirqd/201:16:202
32146992619,4cyclictest33-21ksoftirqd/221:27:242
32146992614,9cyclictest20556-21sh23:33:472
32141992621,3cyclictest25-21ksoftirqd/122:21:291
32141992621,3cyclictest25-21ksoftirqd/120:11:311
32141992621,3cyclictest25-21ksoftirqd/120:11:311
32141992621,3cyclictest25-21ksoftirqd/100:11:371
32141992620,3cyclictest25-21ksoftirqd/122:11:361
3213699263,15cyclictest24292-21ssh00:11:300
32136992620,3cyclictest9-21ksoftirqd/000:06:450
32136992620,3cyclictest9-21ksoftirqd/000:01:390
32136992619,4cyclictest9-21ksoftirqd/020:22:220
32136992618,6cyclictest9-21ksoftirqd/001:01:370
3214699259,13cyclictest663-21gdbus00:06:452
3214699253,12cyclictest14516-21ssh00:01:322
32146992520,3cyclictest33-21ksoftirqd/223:36:332
32146992519,3cyclictest33-21ksoftirqd/222:49:142
32146992518,4cyclictest9296-21grep20:16:432
32146992518,4cyclictest33-21ksoftirqd/223:45:032
32146992518,4cyclictest33-21ksoftirqd/221:45:422
32141992521,3cyclictest25-21ksoftirqd/122:41:171
32141992520,3cyclictest25-21ksoftirqd/123:51:371
32141992520,3cyclictest25-21ksoftirqd/123:06:181
32141992520,3cyclictest25-21ksoftirqd/122:26:321
32141992520,3cyclictest25-21ksoftirqd/121:26:161
32141992520,3cyclictest25-21ksoftirqd/120:36:331
32141992520,3cyclictest25-21ksoftirqd/120:01:321
32141992520,3cyclictest25-21ksoftirqd/120:01:321
32141992519,3cyclictest25-21ksoftirqd/121:31:151
32136992520,3cyclictest9-21ksoftirqd/021:16:340
32136992520,3cyclictest9-21ksoftirqd/020:56:150
32136992520,3cyclictest9-21ksoftirqd/001:16:340
32136992519,3cyclictest9-21ksoftirqd/022:10:170
32136992519,3cyclictest9-21ksoftirqd/000:51:390
32136992519,3cyclictest9-21ksoftirqd/000:23:430
32136992518,4cyclictest9-21ksoftirqd/021:23:000
32136992518,4cyclictest9-21ksoftirqd/021:07:140
32136992514,5cyclictest0-21swapper/022:46:300
32146992418,3cyclictest33-21ksoftirqd/222:51:332
32146992418,3cyclictest33-21ksoftirqd/221:11:242
32146992418,3cyclictest33-21ksoftirqd/220:52:382
32146992418,3cyclictest33-21ksoftirqd/220:37:142
32146992418,3cyclictest33-21ksoftirqd/220:09:392
32146992417,4cyclictest33-21ksoftirqd/220:57:412
32141992420,2cyclictest25-21ksoftirqd/123:31:181
32141992419,3cyclictest25-21ksoftirqd/120:51:321
32141992419,3cyclictest25-21ksoftirqd/101:26:211
32141992418,4cyclictest25-21ksoftirqd/121:58:181
32141992418,4cyclictest25-21ksoftirqd/121:58:181
32141992418,3cyclictest25-21ksoftirqd/121:11:251
32141992418,3cyclictest25-21ksoftirqd/121:01:151
32141992418,3cyclictest25-21ksoftirqd/100:46:371
32136992417,4cyclictest9-21ksoftirqd/022:53:580
32136992417,4cyclictest9-21ksoftirqd/021:14:290
3214699233,10cyclictest25274-21ssh23:06:312
32146992317,3cyclictest33-21ksoftirqd/223:22:122
32146992317,3cyclictest33-21ksoftirqd/221:22:512
32146992316,4cyclictest33-21ksoftirqd/221:57:392
32146992316,4cyclictest33-21ksoftirqd/221:57:392
32146992316,4cyclictest33-21ksoftirqd/221:04:482
32141992318,3cyclictest25-21ksoftirqd/122:41:401
32141992318,3cyclictest25-21ksoftirqd/120:41:241
32141992318,3cyclictest25-21ksoftirqd/120:06:331
32141992318,3cyclictest25-21ksoftirqd/101:21:211
32141992318,3cyclictest10600-21grep01:01:491
32141992317,3cyclictest25-21ksoftirqd/121:36:281
32136992318,3cyclictest13595-1kworker/u9:100:33:550
32136992317,3cyclictest9-21ksoftirqd/001:00:080
32136992316,4cyclictest9-21ksoftirqd/020:44:140
32136992316,4cyclictest9-21ksoftirqd/000:37:000
32136992316,4cyclictest7958-21ssh22:16:230
32136992312,5cyclictest0-21swapper/023:11:280
134272230,3sleep2311rcuc/221:36:152
3214699223,12cyclictest64-21kswapd001:21:322
32146992216,3cyclictest33-21ksoftirqd/223:13:282
32146992216,3cyclictest33-21ksoftirqd/223:01:282
32146992216,3cyclictest33-21ksoftirqd/221:55:262
32146992216,3cyclictest33-21ksoftirqd/201:17:172
32146992215,4cyclictest33-21ksoftirqd/223:29:052
32146992215,4cyclictest33-21ksoftirqd/200:30:272
32146992215,4cyclictest33-21ksoftirqd/200:00:402
32141992216,3cyclictest25-21ksoftirqd/121:54:431
32141992216,3cyclictest25-21ksoftirqd/120:29:291
32136992217,3cyclictest9-21ksoftirqd/022:31:170
32136992217,3cyclictest9-21ksoftirqd/001:11:370
32136992217,3cyclictest7840-1kworker/u9:200:30:070
32136992217,3cyclictest30254-1kworker/u9:222:39:380
32136992217,3cyclictest28770-1kworker/u9:200:20:480
32136992216,3cyclictest9-21ksoftirqd/021:48:210
32136992215,4cyclictest9-21ksoftirqd/020:57:430
32136992215,4cyclictest9-21ksoftirqd/020:47:190
32136992215,4cyclictest9-21ksoftirqd/020:37:400
3213699221,2cyclictest0-21swapper/020:34:390
32146992116,3cyclictest33-21ksoftirqd/220:48:352
32146992115,4cyclictest33-21ksoftirqd/220:16:102
32146992115,4cyclictest33-21ksoftirqd/220:16:102
32146992115,3cyclictest33-21ksoftirqd/201:29:012
32146992114,4cyclictest3388-21grep00:56:212
32146992114,4cyclictest33-21ksoftirqd/220:24:432
32146992114,4cyclictest32528-21sh00:19:172
32146992114,4cyclictest22860-21sendmail_mailst00:41:422
32146992114,4cyclictest2161-21timedrift22:41:452
32146992111,7cyclictest18903-21gltestperf21:46:312
3214699210,2cyclictest0-21swapper/201:00:012
32141992115,3cyclictest25-21ksoftirqd/121:06:151
3213699215,5cyclictest1055-21runrttasks22:11:180
3213699212,17cyclictest13421-21grep22:21:320
32136992116,3cyclictest9-21ksoftirqd/023:41:350
32136992116,3cyclictest9-21ksoftirqd/023:21:300
32136992116,3cyclictest9-21ksoftirqd/000:41:310
32136992116,3cyclictest31174-1kworker/u9:123:48:380
32136992116,3cyclictest31174-1kworker/u9:123:48:380
32136992116,3cyclictest26358-1kworker/u9:101:24:370
32136992115,3cyclictest9-21ksoftirqd/023:35:030
32136992114,4cyclictest9201-21cron23:56:180
32136992114,4cyclictest8800-21apt-config21:26:160
32136992114,4cyclictest7685-21/usr/sbin/munin20:16:380
32136992114,4cyclictest4827-21sh20:08:130
32136992114,4cyclictest25257-21diskmemload23:01:180
32136992114,4cyclictest25257-21diskmemload01:09:290
32136992114,4cyclictest20264-21sh23:01:270
127542210,2sleep00-21swapper/023:26:340
3214699204,10cyclictest4716-21apt-get23:51:312
32146992014,3cyclictest28236-21sh22:02:572
32146992013,4cyclictest33-21ksoftirqd/221:40:002
32146992013,4cyclictest28090-21expr22:36:302
32146992013,4cyclictest25736-21seq00:11:422
32146992013,4cyclictest20072-21cut20:41:292
32146992013,4cyclictest16556-21basename00:36:312
32146992013,4cyclictest15310-21sh22:56:242
32146992013,4cyclictest12847-21sh22:21:182
32146992013,4cyclictest11949-21sh01:04:032
3214699201,2cyclictest0-21swapper/223:20:182
3214699200,4cyclictest5283-21ssh22:12:132
3214699200,15cyclictest0-21swapper/222:07:572
32136992015,3cyclictest24238-21grep23:36:470
3213699201,4cyclictest30649-21snmp_o5powerctl21:01:400
32136992014,3cyclictest9-21ksoftirqd/021:42:300
32136992014,3cyclictest23116-21/usr/sbin/munin21:56:380
32136992014,3cyclictest23116-21/usr/sbin/munin21:56:380
32136992013,4cyclictest2350-21grep22:41:460
32136992013,4cyclictest22592-21sshd21:52:350
32146991913,4cyclictest28493-21sh00:47:172
32146991913,3cyclictest25181-21sh22:32:292
32146991913,3cyclictest1549-21sh00:21:232
32146991912,4cyclictest13847-21swap20:26:402
3214699190,16cyclictest15252-21ssh01:06:492
32136991913,3cyclictest14544-21cron20:31:140
32136991912,4cyclictest25084-21sh23:06:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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