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2026-04-10 - 20:29

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #5, slot #4

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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  Intel
Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

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: ondemand
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rack5slot4s.osadl.org (updated Fri Apr 10, 2026 12:44:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8871432810,3chrt75-21kworker/3:1+events10:01:253
9177502600,3chrt0-21swapper/210:31:252
9214072580,3chrt75-21kworker/3:1+events10:36:203
9942372500,5sleep30-21swapper/311:46:353
9942372500,5sleep30-21swapper/311:46:353
713923994636,8cyclictest831211-21/usr/sbin/munin09:06:341
713923994440,3cyclictest800615-21kworker/u8:3+flush-8:008:56:331
713923994338,3cyclictest4080922-21kworker/u8:1+events_unbound07:46:191
713921994335,5cyclictest1039374-21latency_hist12:35:010
713923994238,3cyclictest845440-21kworker/u8:3+flush-8:009:41:341
7136892414,11sleep10-21swapper/107:09:281
713923994036,3cyclictest845440-21kworker/u8:3+events_unbound10:01:181
713923994036,3cyclictest708865-21kworker/u8:0+flush-8:008:11:321
713923994034,4cyclictest671842-21kworker/u8:2+flush-8:008:51:211
713923994034,4cyclictest4080922-21kworker/u8:1+flush-8:007:36:351
713923994031,6cyclictest280-21systemd-journal12:26:191
713921994034,4cyclictest4080922-21kworker/u8:1+flush-8:007:26:200
71392199401,37cyclictest1-21systemd10:05:000
713921993933,4cyclictest745933-21cp07:40:020
713923993832,4cyclictest671842-21kworker/u8:2+flush-8:008:21:221
713921993832,4cyclictest4080922-21kworker/u8:1+flush-8:007:31:210
713927993730,5cyclictest280-21systemd-journal09:51:172
713923993732,4cyclictest4080922-21kworker/u8:1+events_unbound07:21:281
713923993732,3cyclictest910837-21kworker/u8:4+events_unbound10:56:181
713923993732,3cyclictest671842-21kworker/u8:2+flush-8:008:46:251
713923993731,4cyclictest964676-21kworker/u8:0+flush-8:011:21:201
713923993731,4cyclictest4080922-21kworker/u8:1+flush-8:008:06:211
713927993628,6cyclictest795632-21cp08:30:002
713923993632,3cyclictest910837-21kworker/u8:4+flush-8:011:46:281
713923993632,3cyclictest910837-21kworker/u8:4+flush-8:011:46:281
713923993631,3cyclictest956130-21irqrtprio11:11:231
713923993631,3cyclictest910837-21kworker/u8:4+flush-8:012:16:231
713923993631,3cyclictest671842-21kworker/u8:2+events_unbound10:06:251
713923993627,6cyclictest280-21systemd-journal11:41:181
713923993627,6cyclictest280-21systemd-journal11:41:181
713921993631,3cyclictest4080922-21kworker/u8:1+flush-8:008:01:340
713923993531,3cyclictest910836-21kworker/u8:3+flush-8:010:36:181
713923993530,4cyclictest708865-21kworker/u8:0+flush-8:008:31:211
713923993528,5cyclictest280-21systemd-journal10:31:181
713923993526,6cyclictest860623-21latency_hist09:35:011
713921993526,7cyclictest999882-21/usr/sbin/munin11:56:270
713923993430,3cyclictest875494-21systemd-run09:50:001
713923993429,4cyclictest4080922-21kworker/u8:1+flush-8:008:01:341
713923993424,8cyclictest759845-21ntpq07:51:281
713921993429,4cyclictest708865-21kworker/u8:0+flush-8:007:56:210
713921993429,3cyclictest201rcuc/007:46:190
713921993427,5cyclictest726276-21fschecks_count07:21:190
713921993425,7cyclictest280-21systemd-journal10:20:000
713923993328,4cyclictest708865-21kworker/u8:0+flush-8:008:16:341
713923993328,4cyclictest671842-21kworker/u8:2+flush-8:008:41:201
713921993328,4cyclictest910837-21kworker/u8:4+flush-8:011:41:200
713921993328,4cyclictest910837-21kworker/u8:4+flush-8:011:41:190
713921993328,3cyclictest841852-21irqrtprio09:16:220
713921993328,3cyclictest671842-21kworker/u8:2+flush-8:009:06:350
713921993325,6cyclictest979772-21cron11:35:000
713923993227,4cyclictest708865-21kworker/u8:0+flush-8:007:15:051
713921993227,3cyclictest994602-21cron11:50:000
713921993227,3cyclictest994602-21cron11:50:000
713921993224,6cyclictest1019962-21aten2_r5power_e12:16:170
713921993223,7cyclictest805642-21apt-get08:40:010
713927993122,6cyclictest280-21systemd-journal07:20:002
713923993126,3cyclictest905868-21kworker/u8:2+events_unbound10:25:011
713921993123,6cyclictest280-21systemd-journal08:50:000
713921993116,13cyclictest870081-21wc09:41:350
713927993024,4cyclictest1038998-21unixbench_multi12:31:382
713923993025,3cyclictest960578-21cpuspeed_turbos11:16:191
713923993024,4cyclictest4080922-21kworker/u8:1+flush-8:007:31:351
713921993022,6cyclictest846126-21aten2_r5power_c09:21:170
10077562300,4sleep30-21swapper/312:01:223
71392799293,12cyclictest859835-21ntpq09:31:312
713923992925,2cyclictest911650-21irqrtprio10:26:231
713923992924,3cyclictest0-21swapper/110:11:221
713923992923,4cyclictest950140-21cron11:05:001
713923992923,4cyclictest280-21systemd-journal09:57:171
713923992922,5cyclictest845440-21kworker/u8:3+flush-8:009:36:341
713923992921,5cyclictest718779-21latency_hist07:15:011
713921992925,3cyclictest756222-21aten2_r5power_v07:51:170
713921992924,3cyclictest906019-21aten2_r5power_e10:21:150
713921992922,6cyclictest725605-21cron07:20:000
713921992922,5cyclictest1040083-21fschecks_time12:36:190
71392799282,17cyclictest0-21swapper/211:46:182
71392799282,17cyclictest0-21swapper/211:46:182
713927992818,4cyclictest730919-21apt-get07:26:172
71392799281,15cyclictest890853-21apt-get10:06:172
713923992824,3cyclictest1-21systemd12:40:011
713923992824,2cyclictest846823-21irqrtprio09:21:231
713923992824,2cyclictest0-21swapper/108:26:201
713923992823,4cyclictest671842-21kworker/u8:2+events_unbound09:11:191
713923992823,3cyclictest843296-21kthreadcore09:16:241
713923992822,4cyclictest964676-21kworker/u8:0+events_unbound11:26:311
713923992822,4cyclictest761922-21uname07:56:241
713921992823,3cyclictest885546-21cron10:00:000
713921992822,4cyclictest984761-21sendmail11:40:000
713921992822,4cyclictest900845-21kworker/u8:1+flush-8:010:26:200
713921992818,8cyclictest921129-21diskstats10:36:170
713923992723,3cyclictest750853-21systemd-run07:45:011
713923992722,4cyclictest910837-21kworker/u8:4+events_unbound12:00:011
713923992721,4cyclictest1004726-21kworker/u8:1+flush-8:012:21:251
713923992720,5cyclictest964676-21kworker/u8:0+flush-8:011:36:301
713921992723,2cyclictest820720-21turbostat.cron08:55:000
713921992720,5cyclictest1004870-21aten2_r5power_c12:01:150
713921992720,4cyclictest823242-21sort08:56:250
713921992718,6cyclictest280-21systemd-journal09:49:180
71392799265,7cyclictest955407-21apt-get11:11:172
713927992623,2cyclictest985137-21aten2_r5power_c11:41:172
713927992623,2cyclictest985137-21aten2_r5power_c11:41:172
713927992623,2cyclictest970312-21aten2_r5power_e11:26:172
713927992623,2cyclictest785326-21unixbench_singl08:16:372
713927992622,2cyclictest810489-21unixbench_multi08:41:362
713927992617,4cyclictest900954-21apt-get10:16:162
71392399269,4cyclictest0-21swapper/109:53:531
713923992622,2cyclictest930465-21systemd-run10:45:001
713923992621,4cyclictest910837-21kworker/u8:4+events_unbound10:46:191
713923992621,4cyclictest910836-21kworker/u8:3+events_unbound11:06:311
713923992621,3cyclictest999686-21latency_hist11:55:001
713923992618,6cyclictest4080922-21kworker/u8:1+flush-8:007:26:311
713921992622,2cyclictest864452-21cut09:36:260
713921992621,4cyclictest916833-21kernelversion10:31:240
713921992621,3cyclictest1-21systemd12:26:180
713921992620,4cyclictest717872-21needreboot07:11:290
713921992618,6cyclictest974848-21latency_hist11:30:010
713921992618,6cyclictest775421-21unixbench_singl08:06:370
713927992521,3cyclictest1010014-21cpuspeed_turbos12:06:162
713927992521,2cyclictest896009-21cpuspeed_turbos10:11:182
713927992521,2cyclictest850357-21unixbench_multi09:21:342
71392799251,8cyclictest10328952kthreadcore12:26:252
71392799251,11cyclictest764758-21ntpq07:56:292
713923992520,3cyclictest800615-21kworker/u8:3+events_unbound09:04:591
713923992518,5cyclictest1004726-21kworker/u8:1+flush-8:012:01:321
713921992521,2cyclictest0-21swapper/011:05:000
713921992520,3cyclictest955172-21latency_hist11:10:000
713921992520,3cyclictest910837-21kworker/u8:4+flush-8:011:16:250
713921992520,3cyclictest910836-21kworker/u8:3+flush-8:010:41:290
713921992520,3cyclictest840977-21latency_hist09:15:010
713921992520,3cyclictest809952-21needreboot08:41:280
713921992520,3cyclictest781163-21aten2_r5power_v08:16:180
713921992520,3cyclictest1015028-21aten2_r5power_p12:11:160
713921992520,3cyclictest0-21swapper/012:10:010
713921992520,3cyclictest0-21swapper/011:51:270
713921992520,3cyclictest0-21swapper/009:05:000
713921992519,5cyclictest959987-21cron11:15:000
7135442252,6sleep00-21swapper/007:07:340
71392799243,5cyclictest1043570-21ntpq12:36:302
71392799243,11cyclictest869664-21ntpq09:41:282
71392799243,11cyclictest804813-21ntpq08:36:292
71392799242,11cyclictest889680-21ntpq10:01:302
713927992420,2cyclictest0-21swapper/212:20:012
713927992420,2cyclictest0-21swapper/210:40:002
713927992416,6cyclictest718847-21grep07:15:012
713927992410,9cyclictest831236-21apt-get09:06:172
71392399248,4cyclictest0-21swapper/112:12:191
713923992420,2cyclictest0-21swapper/112:06:171
713923992419,4cyclictest910837-21kworker/u8:4+flush-8:011:31:351
713923992418,4cyclictest804536-21kthreadcore08:36:261
713923992418,3cyclictest845440-21kworker/u8:3+flush-8:010:16:341
713921992421,2cyclictest969914-21idleruntime-cro11:25:000
713921992419,3cyclictest900016-21unixbench_multi10:11:350
713921992419,3cyclictest745259-21unixbench_multi07:36:350
713921992419,3cyclictest0-21swapper/010:06:240
713927992319,3cyclictest851366-21fschecks_count09:26:192
713927992319,2cyclictest776383-21fschecks_count08:11:192
713927992319,2cyclictest766259-21fschecks_count08:01:212
713927992318,3cyclictest930070-21unixbench_multi10:41:362
713927992314,4cyclictest741020-21apt-get07:36:162
71392799231,11cyclictest1028637-21ntpq12:21:282
713923992317,5cyclictest910837-21kworker/u8:4+flush-8:010:51:341
713921992319,3cyclictest708865-21kworker/u8:0+flush-8:008:11:230
713921992316,5cyclictest795535-21apt-get08:30:000
71392799229,10cyclictest915165-21/usr/sbin/munin10:26:352
71392799224,4cyclictest0-21swapper/212:01:262
713927992218,3cyclictest960374-21aten2_r5power_c11:16:182
713927992218,2cyclictest0-21swapper/208:21:242
713927992217,3cyclictest906495-21tr10:21:212
713927992216,4cyclictest280-21systemd-journal12:11:412
713927992213,4cyclictest940630-21apt-get10:56:152
713921992218,2cyclictest1029143-21unixbench_multi12:21:350
713921992218,2cyclictest0-21swapper/010:51:160
713921992218,2cyclictest0-21swapper/008:21:240
713921992217,3cyclictest944447-21ntp_offset10:56:290
713921992217,3cyclictest0-21swapper/008:31:210
713921992216,4cyclictest877495-21kthreadcore09:51:230
71392799216,7cyclictest0-21swapper/207:46:342
71392799216,4cyclictest0-21swapper/211:30:472
71392799215,8cyclictest0-21swapper/211:03:162
71392799215,4cyclictest0-21swapper/209:14:312
71392799215,4cyclictest0-21swapper/207:42:372
71392799215,4cyclictest0-21swapper/207:24:372
71392799212,9cyclictest0-21swapper/211:21:182
713927992118,2cyclictest771245-21aten2_r5power_p08:06:192
713927992117,2cyclictest0-21swapper/212:00:012
713927992116,3cyclictest884643-21grep09:56:272
713927992113,6cyclictest830916-21gpgv09:05:012
71392799210,6cyclictest39-21ksoftirqd/211:37:562
71392799210,5cyclictest931162-21hddtemp_smartct10:46:202
713921992117,3cyclictest855830-21latency_hist09:30:010
71392799207,4cyclictest0-21swapper/210:51:252
71392799205,4cyclictest0-21swapper/208:56:352
713927992016,2cyclictest861086-21aten2_r5power_v09:36:182
713927992016,2cyclictest811423-21cpuspeed_turbos08:46:182
713927992010,8cyclictest871899-21tr09:46:232
71392799200,5cyclictest736106-21diskstats07:31:202
713923992014,4cyclictest0-21swapper/109:26:211
713921992016,2cyclictest0-21swapper/010:46:240
713921992013,5cyclictest859793-21ntpq09:31:290
71392799194,8cyclictest0-21swapper/207:54:192
71392799194,6cyclictest0-21swapper/211:53:172
71392799194,6cyclictest0-21swapper/208:31:232
71392799192,4cyclictest0-21swapper/211:06:432
713927991911,6cyclictest816783-21sed08:51:232
71392799190,5cyclictest844933-21ntpq09:16:292
713923991913,5cyclictest910837-21kworker/u8:4+flush-8:012:31:251
7134992194,11sleep20-21swapper/207:07:002
7091572193,9sleep30-21swapper/307:06:083
8264272166,6sleep30-21swapper/309:01:223
9163842141,8sleep30-21swapper/310:31:233
9406042132,7sleep30-21swapper/310:56:153
8312102132,7sleep30-21swapper/309:06:163
7996682133,6sleep30-21swapper/308:31:283
10406522133,6sleep30-21swapper/312:36:243
9987132122,6sleep30-21swapper/311:51:293
9840052122,6sleep30-21swapper/311:36:323
9724062122,5sleep30-21swapper/311:26:253
9652702122,6sleep30-21swapper/311:21:153
9642232122,6sleep30-21swapper/311:16:343
9590022122,6sleep30-21swapper/311:11:283
9500842122,6sleep30-21swapper/311:04:183
9354002122,5sleep30-21swapper/310:50:013
9258672122,6sleep30-21swapper/310:41:183
9105962122,5sleep30-21swapper/310:25:013
9014692122,6sleep30-21swapper/310:16:223
8948582123,5sleep30-21swapper/310:06:353
8697262124,5sleep30-21swapper/309:41:313
8515652122,7sleep30-21swapper/309:26:223
8157182122,6sleep30-21swapper/308:49:183
8007072122,5sleep30-21swapper/308:35:013
7904532122,6sleep30-21swapper/308:23:183
7815352122,6sleep30-21swapper/308:16:233
7760962122,6sleep30-21swapper/308:11:183
7655282122,6sleep30-21swapper/307:59:183
7568312122,6sleep30-21swapper/307:51:233
7508442122,5sleep30-21swapper/307:45:013
7412632122,6sleep30-21swapper/307:36:183
7364882121,7sleep30-21swapper/307:31:253
7343082120,2sleep3471rcuc/307:26:263
7256132122,5sleep30-21swapper/307:20:013
7193082123,6sleep30-21swapper/307:15:043
7139352122,6sleep30-21swapper/307:10:023
10344532122,6sleep30-21swapper/312:30:023
10202822122,6sleep30-21swapper/312:16:213
10152892122,6sleep30-21swapper/312:11:203
10094682122,5sleep30-21swapper/312:05:023
9998812112,5sleep30-21swapper/311:56:153
9849202112,5sleep30-21swapper/311:40:013
9849202112,5sleep30-21swapper/311:40:013
9790342112,5sleep30-21swapper/311:31:353
9307332112,6sleep30-21swapper/310:45:563
9102892112,6sleep30-21swapper/310:21:363
8957892112,5sleep30-21swapper/310:11:173
8808562112,6sleep30-21swapper/309:55:163
8759992112,5sleep30-21swapper/309:51:143
8712402112,5sleep30-21swapper/309:46:213
8609742112,5sleep30-21swapper/309:36:173
8559362113,5sleep30-21swapper/309:30:563
8410132112,5sleep30-21swapper/309:15:023
8361812112,5sleep30-21swapper/309:11:173
8249242112,5sleep30-21swapper/308:56:323
8160082112,5sleep30-21swapper/308:50:023
8062132112,5sleep30-21swapper/308:41:163
7908752112,5sleep30-21swapper/308:25:423
7713222112,5sleep30-21swapper/308:06:203
7461582112,5sleep30-21swapper/307:40:523
10298452112,5sleep30-21swapper/312:26:163
10247632112,5sleep30-21swapper/312:20:023
9503762102,5sleep30-21swapper/311:05:023
8459732102,5sleep30-21swapper/309:20:043
7658412102,5sleep30-21swapper/308:00:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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