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2026-06-29 - 01:18

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #9, slot #3

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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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.
Unexpectedly long latencies may be caused by SMIs
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 rack9slot3s.osadl.org (updated Sun Jun 28, 2026 12:44:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
119591620,30ptp4l0-21swapper/007:07:050
119591620,29ptp4l0-21swapper/107:07:071
1044625448,4sleep20-21swapper/207:06:072
9822520,0sleep20-21swapper/209:50:162
1042225046,2sleep30-21swapper/307:05:483
77642490,0sleep30-21swapper/308:00:203
265552450,0sleep10-21swapper/108:35:251
1075023027,1sleep30-21swapper/307:10:013
119591220,1ptp4l13025-21ls09:10:230
78492200,0sleep10-21swapper/111:05:141
119591190,0ptp4l0-21swapper/007:30:160
119591170,0ptp4l0-21swapper/111:20:201
119591170,0ptp4l0-21swapper/110:50:151
119591170,0ptp4l0-21swapper/012:25:140
119591170,0ptp4l0-21swapper/009:00:180
119591170,0ptp4l0-21swapper/009:00:180
1101099171,9cyclictest0-21swapper/208:10:132
119591160,2ptp4l12359-21snmp_o5powerctl10:10:220
119591160,1ptp4l25115-21ls12:35:241
119591160,1ptp4l18859-21apt-get10:25:140
119591160,0ptp4l0-21swapper/109:30:191
288772150,1sleep125-21ksoftirqd/111:45:011
119591150,2ptp4l33-21ksoftirqd/209:00:162
119591150,2ptp4l33-21ksoftirqd/209:00:162
119591150,1ptp4l7323-21apt-get12:05:130
119591150,1ptp4l7043-21snmp_o5powerctl10:00:220
119591150,1ptp4l4160-21ls10:55:211
119591150,1ptp4l31050-21df07:45:131
119591150,1ptp4l30424-21apt-get08:45:131
119591150,1ptp4l29605-21snmp_o5powerctl07:40:211
119591150,1ptp4l28466-21hddtemp_smartct08:40:160
119591150,1ptp4l27778-21apt-get08:40:131
119591150,1ptp4l25483-21snmp_o5powerctl11:35:210
119591150,1ptp4l2322-21snmp_o5powerctl08:50:191
119591150,1ptp4l22247-21snmp_o5powerctl12:30:201
119591150,1ptp4l19519-21ls11:25:180
119591150,1ptp4l0-21swapper/010:35:260
119591150,0ptp4l0-21swapper/207:25:222
119591150,0ptp4l0-21swapper/112:12:271
119591150,0ptp4l0-21swapper/112:12:271
119591150,0ptp4l0-21swapper/107:30:231
119591150,0ptp4l0-21swapper/010:30:130
119591150,0ptp4l0-21swapper/009:15:170
119591150,0ptp4l0-21swapper/008:00:110
119591150,0ptp4l0-21swapper/007:10:130
119591140,2ptp4l17649-21phc2sys-jitter10:20:201
119591140,1ptp4l7794-21snmp_o5powerctl08:00:201
119591140,1ptp4l5784-21irqstats12:00:180
119591140,1ptp4l31289-21timerwakeupswit10:45:231
119591140,1ptp4l27512-21cstates09:40:130
119591140,1ptp4l23865-21grep12:35:160
119591140,1ptp4l23715-21missed_timers08:30:190
119591140,1ptp4l19000-21hddtemp_smartct11:25:161
119591140,1ptp4l18246-21python09:20:190
119591140,1ptp4l17248-21egrep07:20:131
119591140,1ptp4l15756-21df12:20:121
119591140,1ptp4l15419-21perf11:20:021
119591140,1ptp4l13533-21snmp_o5powerctl08:10:220
119591140,1ptp4l10371-21ntp_states08:05:180
119591140,0ptp4l13749-21ls08:10:231
119591140,0ptp4l0-21swapper/111:55:171
119591140,0ptp4l0-21swapper/111:35:221
119591140,0ptp4l0-21swapper/111:30:271
119591140,0ptp4l0-21swapper/111:10:241
119591140,0ptp4l0-21swapper/110:35:241
119591140,0ptp4l0-21swapper/110:16:471
119591140,0ptp4l0-21swapper/109:37:191
119591140,0ptp4l0-21swapper/109:20:211
119591140,0ptp4l0-21swapper/108:30:131
119591140,0ptp4l0-21swapper/108:20:351
119591140,0ptp4l0-21swapper/108:05:211
119591140,0ptp4l0-21swapper/107:25:131
119591140,0ptp4l0-21swapper/107:10:131
119591140,0ptp4l0-21swapper/012:30:110
119591140,0ptp4l0-21swapper/011:30:250
119591140,0ptp4l0-21swapper/011:15:420
119591140,0ptp4l0-21swapper/011:10:230
119591140,0ptp4l0-21swapper/011:00:200
119591140,0ptp4l0-21swapper/010:50:150
119591140,0ptp4l0-21swapper/010:05:180
119591140,0ptp4l0-21swapper/009:55:080
119591140,0ptp4l0-21swapper/008:50:100
119591140,0ptp4l0-21swapper/008:45:220
119591140,0ptp4l0-21swapper/008:25:120
119591140,0ptp4l0-21swapper/007:40:010
119591140,0ptp4l0-21swapper/007:37:220
119591130,1ptp4l6438-21df_inode09:00:151
119591130,1ptp4l6438-21df_inode09:00:151
119591130,1ptp4l26190-21snmp_o5powerctl09:35:220
119591130,0ptp4l0-21swapper/311:06:263
119591130,0ptp4l0-21swapper/211:50:122
119591130,0ptp4l0-21swapper/211:45:162
119591130,0ptp4l0-21swapper/211:25:222
119591130,0ptp4l0-21swapper/211:00:202
119591130,0ptp4l0-21swapper/210:40:242
119591130,0ptp4l0-21swapper/210:20:122
119591130,0ptp4l0-21swapper/209:40:192
119591130,0ptp4l0-21swapper/209:20:122
119591130,0ptp4l0-21swapper/209:10:182
119591130,0ptp4l0-21swapper/207:15:012
119591130,0ptp4l0-21swapper/112:25:171
119591130,0ptp4l0-21swapper/112:15:201
119591130,0ptp4l0-21swapper/112:05:141
119591130,0ptp4l0-21swapper/112:00:151
119591130,0ptp4l0-21swapper/111:50:161
119591130,0ptp4l0-21swapper/111:45:181
119591130,0ptp4l0-21swapper/111:00:091
119591130,0ptp4l0-21swapper/110:40:021
119591130,0ptp4l0-21swapper/110:30:161
119591130,0ptp4l0-21swapper/110:25:171
119591130,0ptp4l0-21swapper/110:10:201
119591130,0ptp4l0-21swapper/110:05:131
119591130,0ptp4l0-21swapper/110:00:141
119591130,0ptp4l0-21swapper/109:55:161
119591130,0ptp4l0-21swapper/109:50:141
119591130,0ptp4l0-21swapper/109:45:191
119591130,0ptp4l0-21swapper/109:40:191
119591130,0ptp4l0-21swapper/109:25:151
119591130,0ptp4l0-21swapper/109:15:151
119591130,0ptp4l0-21swapper/109:10:151
119591130,0ptp4l0-21swapper/109:05:141
119591130,0ptp4l0-21swapper/108:55:161
119591130,0ptp4l0-21swapper/108:27:041
119591130,0ptp4l0-21swapper/108:15:141
119591130,0ptp4l0-21swapper/107:55:121
119591130,0ptp4l0-21swapper/107:50:121
119591130,0ptp4l0-21swapper/107:35:121
119591130,0ptp4l0-21swapper/107:15:141
119591130,0ptp4l0-21swapper/012:20:210
119591130,0ptp4l0-21swapper/012:15:190
119591130,0ptp4l0-21swapper/012:10:160
119591130,0ptp4l0-21swapper/012:10:160
119591130,0ptp4l0-21swapper/011:55:140
119591130,0ptp4l0-21swapper/011:50:130
119591130,0ptp4l0-21swapper/011:45:190
119591130,0ptp4l0-21swapper/011:40:180
119591130,0ptp4l0-21swapper/011:20:210
119591130,0ptp4l0-21swapper/011:05:220
119591130,0ptp4l0-21swapper/010:55:120
119591130,0ptp4l0-21swapper/010:45:140
119591130,0ptp4l0-21swapper/010:40:130
119591130,0ptp4l0-21swapper/010:20:140
119591130,0ptp4l0-21swapper/010:15:130
119591130,0ptp4l0-21swapper/009:50:130
119591130,0ptp4l0-21swapper/009:30:020
119591130,0ptp4l0-21swapper/009:25:130
119591130,0ptp4l0-21swapper/009:05:130
119591130,0ptp4l0-21swapper/008:35:070
119591130,0ptp4l0-21swapper/008:20:170
119591130,0ptp4l0-21swapper/008:15:170
119591130,0ptp4l0-21swapper/007:55:130
119591130,0ptp4l0-21swapper/007:50:130
119591130,0ptp4l0-21swapper/007:45:120
119591130,0ptp4l0-21swapper/007:25:140
119591130,0ptp4l0-21swapper/007:20:140
119591130,0ptp4l0-21swapper/007:15:210
119591120,0ptp4l0-21swapper/210:35:212
119591120,0ptp4l0-21swapper/210:25:162
119591120,0ptp4l0-21swapper/207:30:132
119591120,0ptp4l0-21swapper/009:45:140
119591120,0ptp4l0-21swapper/008:55:190
119591110,0ptp4l11006-21cyclictest08:25:072
119591110,0ptp4l0-21swapper/209:45:162
119591110,0ptp4l0-21swapper/208:54:262
119591100,0ptp4l0-21swapper/212:35:382
119591100,0ptp4l0-21swapper/211:10:222
119591100,0ptp4l0-21swapper/210:10:272
119591100,0ptp4l0-21swapper/208:15:052
119591100,0ptp4l0-21swapper/207:58:112
1101199100,5cyclictest0-21swapper/311:40:113
1101099108,1cyclictest33-21ksoftirqd/210:55:102
11959190,0ptp4l41-21ksoftirqd/312:29:543
11959190,0ptp4l0-21swapper/307:27:063
11959190,0ptp4l0-21swapper/212:30:582
11959190,0ptp4l0-21swapper/212:15:142
11959190,0ptp4l0-21swapper/212:11:272
11959190,0ptp4l0-21swapper/212:11:272
11959190,0ptp4l0-21swapper/212:07:102
11959190,0ptp4l0-21swapper/212:01:562
11959190,0ptp4l0-21swapper/211:55:072
11959190,0ptp4l0-21swapper/211:36:262
11959190,0ptp4l0-21swapper/211:34:052
11959190,0ptp4l0-21swapper/211:20:032
11959190,0ptp4l0-21swapper/211:15:402
11959190,0ptp4l0-21swapper/210:50:502
11959190,0ptp4l0-21swapper/210:47:372
11959190,0ptp4l0-21swapper/210:30:352
11959190,0ptp4l0-21swapper/210:17:272
11959190,0ptp4l0-21swapper/210:06:142
11959190,0ptp4l0-21swapper/210:00:102
11959190,0ptp4l0-21swapper/209:58:222
11959190,0ptp4l0-21swapper/209:37:452
11959190,0ptp4l0-21swapper/209:30:232
11959190,0ptp4l0-21swapper/209:26:252
11959190,0ptp4l0-21swapper/209:15:272
11959190,0ptp4l0-21swapper/209:06:492
11959190,0ptp4l0-21swapper/208:56:012
11959190,0ptp4l0-21swapper/208:47:022
11959190,0ptp4l0-21swapper/208:35:312
11959190,0ptp4l0-21swapper/208:31:522
11959190,0ptp4l0-21swapper/208:20:472
11959190,0ptp4l0-21swapper/207:52:412
11959190,0ptp4l0-21swapper/207:40:402
11959190,0ptp4l0-21swapper/207:35:452
11959190,0ptp4l0-21swapper/207:20:482
11959190,0ptp4l0-21swapper/207:10:392
110119997,1cyclictest7072-21chrt11:00:473
110119997,1cyclictest4102-21taskset11:56:133
110119997,1cyclictest290142sleep310:42:303
110119997,1cyclictest28430-21cut08:40:163
110119997,1cyclictest28389-21expr07:40:143
110119997,1cyclictest2338-21taskset09:53:283
110119997,1cyclictest19238-21basename09:25:133
110119997,1cyclictest19220-21expr10:25:153
110119997,1cyclictest17219-21aten_r9power_en08:20:133
110119997,1cyclictest11948-21grep09:10:163
110119997,1cyclictest11292-21taskset08:08:463
110119992,4cyclictest0-21swapper/312:35:133
110109997,1cyclictest9864-21taskset11:07:062
110109997,1cyclictest7554-21grep08:00:192
110109997,1cyclictest326282sleep207:45:302
110109997,1cyclictest19790-21sed12:25:242
110109997,1cyclictest10147-21cat08:05:172
110109990,8cyclictest29503-21sort08:40:242
110109990,8cyclictest17012-21cat12:20:202
11959180,0ptp4l0-21swapper/307:35:043
110119987,1cyclictest943-21runrttasks11:30:143
110119986,1cyclictest8290-21cut10:05:133
110119986,1cyclictest696-21taskset08:50:113
110119986,1cyclictest6833-21cat09:00:183
110119986,1cyclictest6833-21cat09:00:183
110119986,1cyclictest6056-21sort08:00:013
110119986,1cyclictest5367-21basename10:00:123
110119986,1cyclictest4634-21chrt12:00:043
110119986,1cyclictest3991-21sh08:55:173
110119986,1cyclictest32638-21cat11:50:153
110119986,1cyclictest31457-21cut08:45:183
110119986,1cyclictest30555-21tail11:45:203
110119986,1cyclictest30275-21expr09:45:143
110119986,1cyclictest29424-21taskset10:45:033
110119986,1cyclictest28079-21ps09:40:173
110119986,1cyclictest2782-21cut09:55:143
110119986,1cyclictest26649-21taskset09:36:393
110119986,1cyclictest26574-21pmu-power08:35:253
110119986,1cyclictest24137-21cat11:35:133
110119986,1cyclictest24110-21chrt10:35:053
110119986,1cyclictest2364-21cut10:55:103
110119986,1cyclictest22658-21cut07:30:143
110119986,1cyclictest22468-21basename08:30:143
110119986,1cyclictest21861-21bc09:30:093
110119986,1cyclictest21536-21stty10:30:133
110119986,1cyclictest20318-21grep08:25:153
110119986,1cyclictest1999-21ls07:50:173
110119986,1cyclictest18270-21chrt11:25:013
110119986,1cyclictest17440-21expr07:20:143
110119986,1cyclictest16687-21df10:20:133
110119986,1cyclictest15934-21expr11:20:133
110119986,1cyclictest15219-21idleruntime08:15:153
110119986,1cyclictest15156-21tr10:15:203
110119986,1cyclictest14580-21grep07:15:143
110119986,1cyclictest14575-21head09:15:153
110119986,1cyclictest13028-21telnet11:15:123
110119986,1cyclictest12808-21cut08:10:173
110119986,1cyclictest12590-21taskset12:15:073
110119986,1cyclictest10904-21tr10:10:133
110119986,1cyclictest10838-21if_err_enp4s012:10:173
110119986,1cyclictest10838-21if_err_enp4s012:10:173
110119986,1cyclictest10113-21tr09:05:203
110119980,7cyclictest21169-21grep12:30:133
110119980,7cyclictest17186-21grep12:20:213
110119980,4cyclictest0-21swapper/311:10:133
110109986,1cyclictest27163-21smartctl11:40:142
110119975,1cyclictest8805-21cut12:05:213
110119975,1cyclictest32011-21phc2sys07:45:193
110119975,1cyclictest1450-21grep10:50:223
110119971,4cyclictest0-21swapper/309:20:113
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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