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2026-09-24 - 19:45

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 Thu Sep 24, 2026 12:44:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
119591620,31ptp4l0-21swapper/007:07:320
119591600,43ptp4l0-21swapper/107:05:331
1300915447,5phc2sys0-21swapper/207:05:042
514325349,2sleep30-21swapper/307:05:423
172802430,0sleep30-21swapper/311:30:243
1300913027,1phc2sys0-21swapper/207:10:012
119591200,3ptp4l0-21swapper/108:46:141
119591190,0ptp4l0-21swapper/010:10:170
119591180,0ptp4l0-21swapper/007:20:130
119591170,0ptp4l0-21swapper/108:20:221
119591170,0ptp4l0-21swapper/007:30:140
119591160,4ptp4l25-21ksoftirqd/112:30:261
119591160,2ptp4l23459-21ntp_states08:40:170
119591160,1ptp4l25664-21apt-get11:45:340
119591160,1ptp4l19411-21apt-get08:35:130
119591160,1ptp4l19248-21apt-get09:35:121
119591160,0ptp4l0-21swapper/110:10:211
119591160,0ptp4l0-21swapper/108:55:211
119591160,0ptp4l0-21swapper/010:50:200
308722150,0sleep30-21swapper/307:55:143
119591150,2ptp4l20451-21timerandwakeup10:35:221
119591150,1ptp4l934-21ls11:00:200
119591150,1ptp4l9279-21memory10:15:190
119591150,1ptp4l6547-21/usr/sbin/munin12:10:280
119591150,1ptp4l6396-21snmp_o5powerctl12:10:261
119591150,1ptp4l32067-21snmp_o5powerctl07:55:220
119591150,1ptp4l28267-21hddtemp_smartct08:50:141
119591150,1ptp4l27206-21apt-get09:50:111
119591150,1ptp4l21328-21apt-get10:40:122
119591150,1ptp4l21085-21snmp_o5powerctl08:35:221
119591150,1ptp4l19859-21snmp_o5powerctl12:35:220
119591150,1ptp4l16146-21apt-get09:30:021
119591150,1ptp4l16146-21apt-get09:30:021
119591150,1ptp4l15421-21snmp_o5powerctl09:25:220
119591150,1ptp4l15124-21ls10:25:221
119591150,1ptp4l14824-21ls11:25:221
119591150,1ptp4l12444-21munin-run12:25:011
119591150,1ptp4l0-21swapper/108:00:161
119591150,0ptp4l0-21swapper/112:35:171
119591150,0ptp4l0-21swapper/110:40:111
119591150,0ptp4l0-21swapper/109:55:121
119591150,0ptp4l0-21swapper/108:25:121
119591150,0ptp4l0-21swapper/107:45:121
119591150,0ptp4l0-21swapper/011:57:480
119591150,0ptp4l0-21swapper/008:55:220
119591150,0ptp4l0-21swapper/008:25:180
119591150,0ptp4l0-21swapper/007:25:250
119591140,2ptp4l0-21swapper/008:08:080
119591140,1ptp4l5804-21irqrtprio12:10:222
119591140,1ptp4l5244-21cpuspeed_turbos11:10:160
119591140,1ptp4l5045-21cut11:10:151
119591140,1ptp4l4176-21timerandwakeup11:05:251
119591140,1ptp4l342-21ls10:00:131
119591140,1ptp4l25221-21cut09:45:150
119591140,1ptp4l25185-21latency10:45:161
119591140,1ptp4l21309-21cstates11:40:131
119591140,1ptp4l20106-21phc2sys-jitter10:35:190
119591140,1ptp4l19933-21hddtemp_smartct09:35:150
119591140,1ptp4l17073-21df09:30:140
119591140,1ptp4l17073-21df09:30:140
119591140,1ptp4l16375-21awk11:30:190
119591140,1ptp4l13893-21/usr/sbin/munin11:25:160
119591140,1ptp4l13545-21cat12:25:150
119591140,1ptp4l12972-21cstates12:25:121
119591140,1ptp4l12212-21irqstats09:20:171
119591140,1ptp4l12108-21ntp_states10:20:191
119591140,1ptp4l11573-21df_inode09:20:140
119591140,0ptp4l8431-21apt-get09:15:121
119591140,0ptp4l13524-21snmp_o5powerctl07:20:221
119591140,0ptp4l0-21swapper/112:15:101
119591140,0ptp4l0-21swapper/111:50:131
119591140,0ptp4l0-21swapper/111:45:341
119591140,0ptp4l0-21swapper/111:30:251
119591140,0ptp4l0-21swapper/111:20:201
119591140,0ptp4l0-21swapper/111:00:151
119591140,0ptp4l0-21swapper/110:50:271
119591140,0ptp4l0-21swapper/110:30:271
119591140,0ptp4l0-21swapper/110:05:221
119591140,0ptp4l0-21swapper/109:45:121
119591140,0ptp4l0-21swapper/109:05:191
119591140,0ptp4l0-21swapper/108:30:201
119591140,0ptp4l0-21swapper/108:15:021
119591140,0ptp4l0-21swapper/108:10:121
119591140,0ptp4l0-21swapper/107:40:131
119591140,0ptp4l0-21swapper/107:35:221
119591140,0ptp4l0-21swapper/107:15:071
119591140,0ptp4l0-21swapper/107:10:381
119591140,0ptp4l0-21swapper/011:06:130
119591140,0ptp4l0-21swapper/010:30:280
119591140,0ptp4l0-21swapper/010:00:230
119591140,0ptp4l0-21swapper/009:15:190
119591140,0ptp4l0-21swapper/009:05:240
119591140,0ptp4l0-21swapper/008:50:110
119591140,0ptp4l0-21swapper/008:31:440
119591140,0ptp4l0-21swapper/008:10:220
119591140,0ptp4l0-21swapper/007:45:120
119591140,0ptp4l0-21swapper/007:15:180
119591130,1ptp4l8150-21df11:15:110
119591130,1ptp4l31824-21apt-get12:00:120
119591130,0ptp4l0-21swapper/212:20:142
119591130,0ptp4l0-21swapper/212:00:132
119591130,0ptp4l0-21swapper/211:40:222
119591130,0ptp4l0-21swapper/210:55:012
119591130,0ptp4l0-21swapper/210:00:182
119591130,0ptp4l0-21swapper/209:15:212
119591130,0ptp4l0-21swapper/209:00:172
119591130,0ptp4l0-21swapper/208:35:152
119591130,0ptp4l0-21swapper/207:55:122
119591130,0ptp4l0-21swapper/207:35:222
119591130,0ptp4l0-21swapper/207:25:222
119591130,0ptp4l0-21swapper/207:15:162
119591130,0ptp4l0-21swapper/112:05:171
119591130,0ptp4l0-21swapper/112:00:151
119591130,0ptp4l0-21swapper/111:55:131
119591130,0ptp4l0-21swapper/111:35:181
119591130,0ptp4l0-21swapper/111:35:181
119591130,0ptp4l0-21swapper/111:15:101
119591130,0ptp4l0-21swapper/110:55:181
119591130,0ptp4l0-21swapper/110:15:181
119591130,0ptp4l0-21swapper/109:40:151
119591130,0ptp4l0-21swapper/109:10:101
119591130,0ptp4l0-21swapper/109:00:191
119591130,0ptp4l0-21swapper/108:40:191
119591130,0ptp4l0-21swapper/108:05:161
119591130,0ptp4l0-21swapper/107:55:191
119591130,0ptp4l0-21swapper/107:50:151
119591130,0ptp4l0-21swapper/107:30:131
119591130,0ptp4l0-21swapper/107:25:141
119591130,0ptp4l0-21swapper/012:30:180
119591130,0ptp4l0-21swapper/012:20:110
119591130,0ptp4l0-21swapper/012:15:190
119591130,0ptp4l0-21swapper/012:05:140
119591130,0ptp4l0-21swapper/011:50:170
119591130,0ptp4l0-21swapper/011:35:230
119591130,0ptp4l0-21swapper/011:35:230
119591130,0ptp4l0-21swapper/011:20:110
119591130,0ptp4l0-21swapper/010:55:150
119591130,0ptp4l0-21swapper/010:45:110
119591130,0ptp4l0-21swapper/010:40:140
119591130,0ptp4l0-21swapper/010:25:170
119591130,0ptp4l0-21swapper/010:20:120
119591130,0ptp4l0-21swapper/010:05:120
119591130,0ptp4l0-21swapper/009:55:150
119591130,0ptp4l0-21swapper/009:50:170
119591130,0ptp4l0-21swapper/009:14:180
119591130,0ptp4l0-21swapper/009:00:160
119591130,0ptp4l0-21swapper/008:20:150
119591130,0ptp4l0-21swapper/008:15:190
119591130,0ptp4l0-21swapper/008:00:130
119591130,0ptp4l0-21swapper/007:50:180
119591130,0ptp4l0-21swapper/007:40:150
119591130,0ptp4l0-21swapper/007:35:140
119591130,0ptp4l0-21swapper/007:10:020
119591120,0ptp4l0-21swapper/212:05:232
119591120,0ptp4l0-21swapper/211:55:222
119591120,0ptp4l0-21swapper/210:25:162
119591120,0ptp4l0-21swapper/209:30:192
119591120,0ptp4l0-21swapper/209:30:192
119591120,0ptp4l0-21swapper/208:30:142
119591120,0ptp4l0-21swapper/109:25:131
119591120,0ptp4l0-21swapper/011:40:120
119591120,0ptp4l0-21swapper/009:40:140
119591120,0ptp4l0-21swapper/008:45:010
119591110,0ptp4l0-21swapper/210:15:272
119591110,0ptp4l0-21swapper/209:10:222
119591110,0ptp4l0-21swapper/209:05:132
119591110,0ptp4l0-21swapper/208:45:172
119591110,0ptp4l0-21swapper/208:40:162
119591110,0ptp4l0-21swapper/207:41:152
119591100,1ptp4l0-21swapper/209:20:542
119591100,0ptp4l0-21swapper/211:49:142
119591100,0ptp4l0-21swapper/211:03:142
119591100,0ptp4l0-21swapper/208:15:172
119591100,0ptp4l0-21swapper/207:45:152
57409997,1cyclictest7967-21taskset09:12:173
57409997,1cyclictest5057-21expr12:10:193
57409997,1cyclictest5001-21seq11:10:113
57409997,1cyclictest31875-21cat11:00:013
57409997,1cyclictest297202sleep308:51:473
57409997,1cyclictest25848-21cat07:45:153
57409997,1cyclictest24007-21aten_r9power_en10:45:113
57409997,1cyclictest21673-21sed07:35:233
57409997,1cyclictest19617-21cat07:35:013
57409997,1cyclictest14832-21expr07:25:133
57409997,1cyclictest1241-21sort12:00:233
57409997,1cyclictest11864-21wc12:20:213
57409997,1cyclictest10267-21expr09:15:233
57409996,2cyclictest26547-21head09:45:233
57409995,1cyclictest41-21ksoftirqd/308:35:013
57399997,1cyclictest5937-21sed11:10:192
57399997,1cyclictest20113-21grep10:35:192
57399997,1cyclictest19277-21telnet09:35:122
57399997,1cyclictest18709-21cat11:35:142
57399997,1cyclictest18709-21cat11:35:142
57399997,1cyclictest13029-21expr12:25:122
57399996,2cyclictest9144-21cat12:15:212
57399995,3cyclictest33-21ksoftirqd/208:10:132
11959190,1ptp4l0-21swapper/210:46:162
11959190,0ptp4l0-21swapper/212:35:362
11959190,0ptp4l0-21swapper/212:31:242
11959190,0ptp4l0-21swapper/211:51:152
11959190,0ptp4l0-21swapper/211:32:382
11959190,0ptp4l0-21swapper/211:25:042
11959190,0ptp4l0-21swapper/211:23:152
11959190,0ptp4l0-21swapper/211:17:022
11959190,0ptp4l0-21swapper/211:07:122
11959190,0ptp4l0-21swapper/210:51:002
11959190,0ptp4l0-21swapper/210:21:162
11959190,0ptp4l0-21swapper/210:13:042
11959190,0ptp4l0-21swapper/210:05:262
11959190,0ptp4l0-21swapper/209:51:142
11959190,0ptp4l0-21swapper/209:48:182
11959190,0ptp4l0-21swapper/208:58:182
11959190,0ptp4l0-21swapper/208:51:092
11959190,0ptp4l0-21swapper/208:25:052
11959190,0ptp4l0-21swapper/208:20:342
11959190,0ptp4l0-21swapper/208:05:022
11959190,0ptp4l0-21swapper/208:02:092
11959190,0ptp4l0-21swapper/207:52:372
11959190,0ptp4l0-21swapper/207:34:422
11959190,0ptp4l0-21swapper/207:20:022
57409986,1cyclictest9791-21cut08:15:163
57409986,1cyclictest9297-21sed12:15:223
57409986,1cyclictest9070-21cut07:15:023
57409986,1cyclictest886-21cat09:00:163
57409986,1cyclictest8484-21expr10:15:153
57409986,1cyclictest8290-21grep11:15:123
57409986,1cyclictest6399-21grep07:10:163
57409986,1cyclictest6227-21expr08:10:133
57409986,1cyclictest6011-21cut10:10:203
57409986,1cyclictest3767-21head09:05:173
57409986,1cyclictest3466-21grep08:05:113
57409986,1cyclictest3334-21tr11:05:183
57409986,1cyclictest3215-21expr10:05:133
57409986,1cyclictest32065-21cat11:00:013
57409986,1cyclictest31573-21nfs4_client08:55:193
57409986,1cyclictest3046-21cut12:05:163
57409986,1cyclictest30201-21expr09:55:133
57409986,1cyclictest29835-21cut11:55:143
57409986,1cyclictest28373-21head07:50:143
57409986,1cyclictest27607-21expr09:50:123
57409986,1cyclictest26663-21stty10:50:183
57409986,1cyclictest26616-21cut11:50:143
57409986,1cyclictest25435-21sort08:45:153
57409986,1cyclictest24016-21expr11:45:123
57409986,1cyclictest23313-21cat07:40:173
57409986,1cyclictest22993-21tr08:40:143
57409986,1cyclictest22813-21ps09:40:163
57409986,1cyclictest2234-21taskset10:01:323
57409986,1cyclictest21800-21df10:40:143
57409986,1cyclictest21462-21chrt08:35:373
57409986,1cyclictest21336-21cat11:40:133
57409986,1cyclictest19953-21cat09:35:153
57409986,1cyclictest18714-21hostname10:35:123
57409986,1cyclictest182552sleep311:35:053
57409986,1cyclictest182552sleep311:35:053
57409986,1cyclictest18016-21chmod12:35:013
57409986,1cyclictest17056-21expr09:30:143
57409986,1cyclictest17056-21expr09:30:143
57409986,1cyclictest16564-21fschecks_time10:30:193
57409986,1cyclictest15801-21chrt09:25:423
57409986,1cyclictest15371-21basename12:30:163
57409986,1cyclictest14150-21stty08:25:123
57409986,1cyclictest14032-21tail10:25:143
57409986,1cyclictest13286-21head12:25:143
57409986,1cyclictest13167-21switchtime08:20:233
57409986,1cyclictest13084-21hostname11:25:113
57409986,1cyclictest1280-21tail08:00:153
57409986,1cyclictest12313-21gzip10:20:203
57409986,1cyclictest12200-21cat07:20:143
57409986,1cyclictest11274-21egrep09:20:133
57409986,1cyclictest10573-21expr11:20:123
57399986,1cyclictest318992sleep209:55:312
57399986,1cyclictest16235-21expr10:30:182
57399986,1cyclictest15732-21grep09:25:232
11959180,0ptp4l0-21swapper/209:41:262
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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