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2026-08-16 - 19:57

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 792 highest latencies:
System rack9slot3s.osadl.org (updated Sun Aug 16, 2026 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
119591680,51ptp4l0-21swapper/007:06:340
2362026656,7sleep10-21swapper/107:05:031
2379125350,1sleep20-21swapper/207:05:172
2584025046,2sleep30-21swapper/307:07:223
29482440,0sleep12951-21irqrtprio08:25:181
324602420,0sleep20-21swapper/207:20:132
119591300,0ptp4l0-21swapper/010:30:220
119591180,0ptp4l0-21swapper/111:45:171
119591180,0ptp4l0-21swapper/010:25:170
119591170,2ptp4l0-21swapper/011:53:160
119591170,0ptp4l0-21swapper/108:20:221
119591160,1ptp4l31990-21apt-get10:20:141
119591160,1ptp4l17499-21apt-get11:55:010
119591160,0ptp4l0-21swapper/109:10:151
119591150,3ptp4l0-21swapper/009:29:280
119591150,1ptp4l6164-21snmp_o5powerctl11:30:232
119591150,1ptp4l4043-21ls10:25:251
119591150,1ptp4l31423-21snmp_o5powerctl07:15:230
119591150,1ptp4l30988-21snmp_o5powerctl10:15:250
119591150,1ptp4l2652-21apt-get07:25:142
119591150,1ptp4l24173-21apt-get09:05:120
119591150,1ptp4l17568-21snmp_o5powerctl07:50:211
119591150,1ptp4l14091-21hddtemp_smartct09:45:170
119591150,1ptp4l13407-21apt-get09:45:141
119591150,0ptp4l0-21swapper/111:40:131
119591150,0ptp4l0-21swapper/110:45:151
119591150,0ptp4l0-21swapper/108:30:111
119591150,0ptp4l0-21swapper/107:10:141
119591150,0ptp4l0-21swapper/010:40:210
119591150,0ptp4l0-21swapper/009:40:130
2630999140,4cyclictest0-21swapper/308:20:153
119591140,1ptp4l4537-21aten_r9power_en11:30:130
119591140,1ptp4l4466-21apt-get08:30:020
119591140,1ptp4l4098-21perf12:30:000
119591140,1ptp4l32634-21cpuspeed_turbos07:20:140
119591140,1ptp4l31282-21apt-config12:20:001
119591140,1ptp4l29317-21apt-get10:15:151
119591140,1ptp4l29274-21fschecks_time07:15:012
119591140,1ptp4l27943-21users12:10:240
119591140,1ptp4l26580-21diskmemload09:15:210
119591140,1ptp4l2582-21if_enp0s31f611:25:171
119591140,1ptp4l25102-21snmp_o5powerctl11:05:230
119591140,1ptp4l24539-21/usr/sbin/munin11:05:181
119591140,1ptp4l2282-21cstates11:25:150
119591140,1ptp4l22745-21ntp_states10:00:201
119591140,1ptp4l21759-21tr09:00:150
119591140,1ptp4l21647-21aten2.4-expect09:00:131
119591140,1ptp4l21052-21kworker/0:209:10:210
119591140,1ptp4l19919-21memory09:55:190
119591140,1ptp4l16995-21irqrtprio09:50:191
119591140,1ptp4l15923-21/usr/sbin/munin08:50:180
119591140,1ptp4l11668-21memory08:40:190
119591140,1ptp4l11299-21hddtemp_smartct07:40:140
119591140,1ptp4l1040-21sed11:20:251
119591140,1ptp4l0-21swapper/007:57:540
119591140,0ptp4l23271-21apt-get12:05:130
119591140,0ptp4l0-21swapper/211:00:232
119591140,0ptp4l0-21swapper/209:40:032
119591140,0ptp4l0-21swapper/112:15:141
119591140,0ptp4l0-21swapper/111:50:241
119591140,0ptp4l0-21swapper/111:37:321
119591140,0ptp4l0-21swapper/111:34:111
119591140,0ptp4l0-21swapper/111:15:241
119591140,0ptp4l0-21swapper/110:35:151
119591140,0ptp4l0-21swapper/110:32:261
119591140,0ptp4l0-21swapper/110:10:231
119591140,0ptp4l0-21swapper/110:05:171
119591140,0ptp4l0-21swapper/109:55:131
119591140,0ptp4l0-21swapper/109:40:021
119591140,0ptp4l0-21swapper/109:25:231
119591140,0ptp4l0-21swapper/109:09:151
119591140,0ptp4l0-21swapper/108:45:121
119591140,0ptp4l0-21swapper/108:05:211
119591140,0ptp4l0-21swapper/108:00:211
119591140,0ptp4l0-21swapper/107:45:231
119591140,0ptp4l0-21swapper/107:40:121
119591140,0ptp4l0-21swapper/107:31:151
119591140,0ptp4l0-21swapper/011:20:110
119591140,0ptp4l0-21swapper/010:45:240
119591140,0ptp4l0-21swapper/010:35:250
119591140,0ptp4l0-21swapper/010:14:280
119591140,0ptp4l0-21swapper/009:50:150
119591140,0ptp4l0-21swapper/009:35:230
119591140,0ptp4l0-21swapper/009:30:140
119591140,0ptp4l0-21swapper/008:56:420
119591140,0ptp4l0-21swapper/008:05:390
119591140,0ptp4l0-21swapper/007:35:220
119591140,0ptp4l0-21swapper/007:10:230
119591130,0ptp4l24015-21apt-get10:05:140
119591130,0ptp4l19906-21strings08:55:182
119591130,0ptp4l15497-21apt-get08:50:011
119591130,0ptp4l0-21swapper/211:50:202
119591130,0ptp4l0-21swapper/211:45:252
119591130,0ptp4l0-21swapper/211:07:002
119591130,0ptp4l0-21swapper/210:50:142
119591130,0ptp4l0-21swapper/208:30:142
119591130,0ptp4l0-21swapper/112:35:181
119591130,0ptp4l0-21swapper/112:30:131
119591130,0ptp4l0-21swapper/112:25:191
119591130,0ptp4l0-21swapper/112:10:141
119591130,0ptp4l0-21swapper/112:05:151
119591130,0ptp4l0-21swapper/112:00:161
119591130,0ptp4l0-21swapper/111:55:151
119591130,0ptp4l0-21swapper/111:13:121
119591130,0ptp4l0-21swapper/111:00:141
119591130,0ptp4l0-21swapper/110:55:141
119591130,0ptp4l0-21swapper/110:50:151
119591130,0ptp4l0-21swapper/110:40:141
119591130,0ptp4l0-21swapper/109:35:131
119591130,0ptp4l0-21swapper/109:30:171
119591130,0ptp4l0-21swapper/109:20:171
119591130,0ptp4l0-21swapper/109:15:161
119591130,0ptp4l0-21swapper/108:55:151
119591130,0ptp4l0-21swapper/108:40:141
119591130,0ptp4l0-21swapper/108:35:021
119591130,0ptp4l0-21swapper/108:15:141
119591130,0ptp4l0-21swapper/108:10:151
119591130,0ptp4l0-21swapper/107:55:151
119591130,0ptp4l0-21swapper/107:35:151
119591130,0ptp4l0-21swapper/107:25:171
119591130,0ptp4l0-21swapper/107:20:131
119591130,0ptp4l0-21swapper/107:15:021
119591130,0ptp4l0-21swapper/012:35:140
119591130,0ptp4l0-21swapper/012:20:150
119591130,0ptp4l0-21swapper/012:15:170
119591130,0ptp4l0-21swapper/012:00:150
119591130,0ptp4l0-21swapper/011:45:180
119591130,0ptp4l0-21swapper/011:40:160
119591130,0ptp4l0-21swapper/011:35:180
119591130,0ptp4l0-21swapper/011:15:140
119591130,0ptp4l0-21swapper/011:10:200
119591130,0ptp4l0-21swapper/011:00:160
119591130,0ptp4l0-21swapper/010:55:130
119591130,0ptp4l0-21swapper/010:50:160
119591130,0ptp4l0-21swapper/010:20:160
119591130,0ptp4l0-21swapper/010:00:150
119591130,0ptp4l0-21swapper/009:20:130
119591130,0ptp4l0-21swapper/008:45:140
119591130,0ptp4l0-21swapper/008:35:010
119591130,0ptp4l0-21swapper/008:25:140
119591130,0ptp4l0-21swapper/008:20:170
119591130,0ptp4l0-21swapper/008:15:200
119591130,0ptp4l0-21swapper/008:10:240
119591130,0ptp4l0-21swapper/008:00:150
119591130,0ptp4l0-21swapper/007:50:180
119591130,0ptp4l0-21swapper/007:45:160
119591130,0ptp4l0-21swapper/007:30:140
119591130,0ptp4l0-21swapper/007:25:240
119591120,0ptp4l0-21swapper/212:35:222
119591120,0ptp4l0-21swapper/212:10:232
119591120,0ptp4l0-21swapper/212:05:182
119591120,0ptp4l0-21swapper/211:35:152
119591120,0ptp4l0-21swapper/210:10:212
119591120,0ptp4l0-21swapper/209:30:152
119591120,0ptp4l0-21swapper/209:15:152
119591120,0ptp4l0-21swapper/209:10:122
119591120,0ptp4l0-21swapper/209:00:252
119591120,0ptp4l0-21swapper/208:49:472
119591120,0ptp4l0-21swapper/208:15:262
119591120,0ptp4l0-21swapper/207:30:122
119591120,0ptp4l0-21swapper/012:30:140
2630999119,1cyclictest20371-21grep12:00:003
119591110,0ptp4l0-21swapper/212:15:182
119591110,0ptp4l0-21swapper/209:45:152
119591100,0ptp4l0-21swapper/209:09:562
263099997,1cyclictest837-21cat10:20:203
263099997,1cyclictest2980-21cat10:25:173
263099997,1cyclictest24179-21expr08:05:133
263099997,1cyclictest21360-21cat10:00:133
263099997,1cyclictest155272sleep307:48:293
263099997,1cyclictest15351-21chrt08:48:223
263099997,1cyclictest14498-21snmp_o5powerctl10:45:243
263089997,1cyclictest308562sleep211:16:372
263089997,1cyclictest24884-21cut08:05:172
263089997,1cyclictest18513-21expr10:55:142
263089990,8cyclictest32427-21cut12:20:172
11959190,1ptp4l0-21swapper/209:58:052
11959190,1ptp4l0-21swapper/207:56:132
11959190,0ptp4l0-21swapper/212:04:142
11959190,0ptp4l0-21swapper/211:56:182
11959190,0ptp4l0-21swapper/211:42:002
11959190,0ptp4l0-21swapper/211:26:072
11959190,0ptp4l0-21swapper/211:20:402
11959190,0ptp4l0-21swapper/211:11:232
11959190,0ptp4l0-21swapper/210:46:382
11959190,0ptp4l0-21swapper/210:43:222
11959190,0ptp4l0-21swapper/210:35:372
11959190,0ptp4l0-21swapper/210:30:242
11959190,0ptp4l0-21swapper/210:21:072
11959190,0ptp4l0-21swapper/210:16:592
11959190,0ptp4l0-21swapper/210:07:142
11959190,0ptp4l0-21swapper/209:51:152
11959190,0ptp4l0-21swapper/209:26:272
11959190,0ptp4l0-21swapper/208:44:272
11959190,0ptp4l0-21swapper/208:35:522
11959190,0ptp4l0-21swapper/208:00:462
11959190,0ptp4l0-21swapper/207:45:272
11959190,0ptp4l0-21swapper/207:43:382
11959190,0ptp4l0-21swapper/207:35:022
11959190,0ptp4l0-21swapper/207:10:262
263099986,1cyclictest9365-21chrt12:39:573
263099986,1cyclictest9289-21tr08:35:193
263099986,1cyclictest9050-21tr07:35:183
263099986,1cyclictest8278-21expr09:35:133
263099986,1cyclictest8130-21grep10:35:183
263099986,1cyclictest8085-21cut11:35:173
263099986,1cyclictest7360-21taskset09:31:363
263099986,1cyclictest6389-21tr07:30:173
263099986,1cyclictest6075-21grep11:30:213
263099986,1cyclictest5299-21expr10:30:133
263099986,1cyclictest5242-21expr08:30:153
263099986,1cyclictest4874-21seq07:27:513
263099986,1cyclictest4319-21basename12:30:123
263099986,1cyclictest3445-21wc11:25:223
263099986,1cyclictest32640-21cstates09:20:133
263099986,1cyclictest3208-21expr09:25:163
263099986,1cyclictest31681-21cut12:20:143
263099986,1cyclictest315772sleep311:20:073
263099986,1cyclictest3099-21cut08:25:183
263099986,1cyclictest30542-21cat09:15:183
263099986,1cyclictest30162-21grep11:15:233
263099986,1cyclictest29650-21uname07:15:023
263099986,1cyclictest29586-21grep10:15:173
263099986,1cyclictest29475-21cut12:15:193
263099986,1cyclictest28708-21taskset10:10:303
263099986,1cyclictest28625-21grep09:10:213
263099986,1cyclictest28573-21taskset07:12:503
263099986,1cyclictest26852-21expr08:10:153
263099986,1cyclictest26478-21expr11:10:133
263099986,1cyclictest25882-21taskset12:10:083
263099986,1cyclictest25434-21cat09:05:173
263099986,1cyclictest239782sleep310:05:083
263099986,1cyclictest23748-21expr11:05:153
263099986,1cyclictest23229-21chrt12:05:023
263099986,1cyclictest2319-21chrt07:24:033
263099986,1cyclictest22236-21ls09:00:173
263099986,1cyclictest21399-21cat12:00:183
263099986,1cyclictest2119-21expr12:25:123
263099986,1cyclictest20788-21seq07:58:063
263099986,1cyclictest207662sleep309:55:513
263099986,1cyclictest19742-21cut08:55:183
263099986,1cyclictest18789-21head10:55:163
263099986,1cyclictest177472sleep310:53:363
263099986,1cyclictest17383-21cut07:50:203
263099986,1cyclictest15810-21cat08:50:003
263099986,1cyclictest15761-21cut11:50:183
263099986,1cyclictest14170-21cat09:45:183
263099986,1cyclictest12956-21cut11:45:173
263099986,1cyclictest11950-21tr08:40:213
263099986,1cyclictest11869-21chrt11:40:483
263099986,1cyclictest11847-21chrt10:40:233
263099986,1cyclictest11414-21head09:40:163
263099986,1cyclictest10954-21cat07:40:133
263089987,1cyclictest16560-21grep08:50:162
263089986,1cyclictest7949-21basename09:35:122
263089986,1cyclictest6141-21cat12:30:222
263089986,1cyclictest558-21tail09:20:162
263089986,1cyclictest32053-21tr08:20:172
263089986,1cyclictest2668-21head08:25:152
263089986,1cyclictest1656-21taskset12:25:102
11959180,0ptp4l0-21swapper/210:25:092
11959180,0ptp4l0-21swapper/210:00:032
11959180,0ptp4l0-21swapper/208:10:342
11959180,0ptp4l0-21swapper/207:50:422
263099976,1cyclictest22136-21ntpq11:00:193
263099975,1cyclictest29557-21expr08:15:163
263099975,1cyclictest22449-21sed08:00:183
263099975,1cyclictest16096-21hostname09:50:153
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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