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2026-06-25 - 15:43

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 Jun 25, 2026 12:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
119591670,32ptp4l0-21swapper/007:05:150
119591580,41ptp4l0-21swapper/107:08:321
1523025148,1sleep30-21swapper/307:05:243
1594025043,2sleep20-21swapper/207:09:592
276082430,0sleep30-21swapper/309:30:153
119591190,1ptp4l30633-21ls12:35:240
119591180,2ptp4l0-21swapper/010:30:210
119591180,0ptp4l0-21swapper/111:20:211
119591180,0ptp4l0-21swapper/110:35:171
119591180,0ptp4l0-21swapper/011:40:180
119591180,0ptp4l0-21swapper/011:10:230
119591180,0ptp4l0-21swapper/010:00:170
119591180,0ptp4l0-21swapper/008:05:200
119591150,1ptp4l9879-21ls09:55:231
119591150,1ptp4l7083-21ls09:50:220
119591150,1ptp4l6985-21snmp_o5powerctl10:50:211
119591150,1ptp4l4879-21ls08:45:231
119591150,1ptp4l28428-21ls11:30:240
119591150,1ptp4l26847-21snmp_o5powerctl07:25:211
119591150,1ptp4l2082-21apt-get11:45:121
119591150,1ptp4l20781-21snmp_o5powerctl09:15:211
119591150,1ptp4l17990-21apt-get12:15:130
119591150,1ptp4l17843-21ntp_states07:10:211
119591150,1ptp4l17763-21snmp_o5powerctl10:10:210
119591150,1ptp4l17763-21snmp_o5powerctl10:10:210
119591150,1ptp4l16941-21diskstats09:10:120
119591150,1ptp4l15113-21snmp_o5powerctl10:05:210
119591150,1ptp4l12624-21snmp_o5powerctl09:00:220
119591150,0ptp4l24800-21apt-get08:25:130
119591150,0ptp4l0-21swapper/110:26:151
119591150,0ptp4l0-21swapper/109:35:121
119591150,0ptp4l0-21swapper/109:03:051
119591150,0ptp4l0-21swapper/012:21:590
119591150,0ptp4l0-21swapper/011:20:110
119591150,0ptp4l0-21swapper/010:40:110
119591150,0ptp4l0-21swapper/009:55:130
119591150,0ptp4l0-21swapper/009:25:170
119591150,0ptp4l0-21swapper/008:40:130
119591140,1ptp4l7307-21snmp_o5powerctl08:50:210
119591140,1ptp4l6164-21sed07:50:011
119591140,1ptp4l5738-21diskstats09:50:131
119591140,1ptp4l5520-21cpuspeed_turbos10:50:130
119591140,1ptp4l4882-21head07:45:201
119591140,1ptp4l4557-21ls10:45:231
119591140,1ptp4l4286-21snmp_o5powerctl09:45:210
119591140,1ptp4l32134-21perf09:40:010
119591140,1ptp4l32132-21python07:35:191
119591140,1ptp4l31281-21head10:35:190
119591140,1ptp4l29675-21/usr/sbin/munin11:35:141
119591140,1ptp4l2959-21/usr/sbin/munin08:45:150
119591140,1ptp4l29121-21snmp_o5powerctl08:30:220
119591140,1ptp4l28947-21ls10:30:241
119591140,1ptp4l24626-21cpuspeed_turbos09:25:151
119591140,1ptp4l23474-21/usr/sbin/munin08:20:171
119591140,1ptp4l20784-21snmp_o5powerctl09:15:220
119591140,1ptp4l1936-21ls07:40:191
119591140,1ptp4l19211-21memory12:15:181
119591140,1ptp4l18585-21cat10:15:011
119591140,1ptp4l18585-21cat10:15:011
119591140,1ptp4l17446-21proc_pri11:10:201
119591140,1ptp4l17283-21if_err_enp0s31f07:10:180
119591140,1ptp4l17061-21cpuspeed_turbos08:10:140
119591140,1ptp4l16325-21cpuspeed_turbos10:10:132
119591140,1ptp4l16325-21cpuspeed_turbos10:10:132
119591140,1ptp4l16226-21perf09:10:010
119591140,1ptp4l14520-21irqrtprio10:05:161
119591140,1ptp4l14489-21memory11:05:161
119591140,1ptp4l13214-21snmp_o5powerctl08:00:231
119591140,1ptp4l1230-21sed09:40:180
119591140,1ptp4l10699-21aten_r9power_po11:00:131
119591140,0ptp4l25714-21ls11:25:241
119591140,0ptp4l16214-21diskmemload12:30:170
119591140,0ptp4l0-21swapper/210:20:222
119591140,0ptp4l0-21swapper/112:32:141
119591140,0ptp4l0-21swapper/112:25:021
119591140,0ptp4l0-21swapper/112:20:221
119591140,0ptp4l0-21swapper/112:00:121
119591140,0ptp4l0-21swapper/111:40:041
119591140,0ptp4l0-21swapper/111:30:231
119591140,0ptp4l0-21swapper/111:20:011
119591140,0ptp4l0-21swapper/110:55:241
119591140,0ptp4l0-21swapper/110:40:211
119591140,0ptp4l0-21swapper/110:20:021
119591140,0ptp4l0-21swapper/110:19:391
119591140,0ptp4l0-21swapper/110:00:221
119591140,0ptp4l0-21swapper/109:45:111
119591140,0ptp4l0-21swapper/109:40:221
119591140,0ptp4l0-21swapper/109:30:131
119591140,0ptp4l0-21swapper/109:20:221
119591140,0ptp4l0-21swapper/109:10:221
119591140,0ptp4l0-21swapper/109:05:011
119591140,0ptp4l0-21swapper/108:40:211
119591140,0ptp4l0-21swapper/108:30:111
119591140,0ptp4l0-21swapper/108:25:231
119591140,0ptp4l0-21swapper/108:10:231
119591140,0ptp4l0-21swapper/108:05:141
119591140,0ptp4l0-21swapper/107:30:171
119591140,0ptp4l0-21swapper/107:15:211
119591140,0ptp4l0-21swapper/012:25:120
119591140,0ptp4l0-21swapper/011:00:210
119591140,0ptp4l0-21swapper/010:15:020
119591140,0ptp4l0-21swapper/008:55:170
119591140,0ptp4l0-21swapper/008:35:120
119591140,0ptp4l0-21swapper/008:20:110
119591140,0ptp4l0-21swapper/008:00:240
119591140,0ptp4l0-21swapper/007:55:210
119591140,0ptp4l0-21swapper/007:15:120
119591130,0ptp4l0-21swapper/212:20:222
119591130,0ptp4l0-21swapper/211:40:222
119591130,0ptp4l0-21swapper/211:25:142
119591130,0ptp4l0-21swapper/211:10:222
119591130,0ptp4l0-21swapper/210:05:172
119591130,0ptp4l0-21swapper/209:50:212
119591130,0ptp4l0-21swapper/208:10:152
119591130,0ptp4l0-21swapper/207:55:152
119591130,0ptp4l0-21swapper/207:50:222
119591130,0ptp4l0-21swapper/207:35:192
119591130,0ptp4l0-21swapper/207:20:132
119591130,0ptp4l0-21swapper/112:35:121
119591130,0ptp4l0-21swapper/112:10:111
119591130,0ptp4l0-21swapper/112:05:141
119591130,0ptp4l0-21swapper/111:55:161
119591130,0ptp4l0-21swapper/111:50:131
119591130,0ptp4l0-21swapper/108:55:131
119591130,0ptp4l0-21swapper/108:50:151
119591130,0ptp4l0-21swapper/108:35:131
119591130,0ptp4l0-21swapper/108:15:161
119591130,0ptp4l0-21swapper/107:55:141
119591130,0ptp4l0-21swapper/107:20:121
119591130,0ptp4l0-21swapper/012:10:140
119591130,0ptp4l0-21swapper/012:05:140
119591130,0ptp4l0-21swapper/012:00:120
119591130,0ptp4l0-21swapper/011:55:150
119591130,0ptp4l0-21swapper/011:50:170
119591130,0ptp4l0-21swapper/011:45:150
119591130,0ptp4l0-21swapper/011:35:190
119591130,0ptp4l0-21swapper/011:25:130
119591130,0ptp4l0-21swapper/011:15:120
119591130,0ptp4l0-21swapper/011:05:110
119591130,0ptp4l0-21swapper/010:55:170
119591130,0ptp4l0-21swapper/010:45:140
119591130,0ptp4l0-21swapper/010:25:110
119591130,0ptp4l0-21swapper/010:20:140
119591130,0ptp4l0-21swapper/009:30:150
119591130,0ptp4l0-21swapper/009:20:150
119591130,0ptp4l0-21swapper/008:15:130
119591130,0ptp4l0-21swapper/007:50:160
119591130,0ptp4l0-21swapper/007:45:210
119591130,0ptp4l0-21swapper/007:40:150
119591130,0ptp4l0-21swapper/007:35:120
119591130,0ptp4l0-21swapper/007:30:150
119591130,0ptp4l0-21swapper/007:25:130
119591130,0ptp4l0-21swapper/007:20:160
119591120,0ptp4l0-21swapper/211:15:192
119591120,0ptp4l0-21swapper/210:35:112
119591120,0ptp4l0-21swapper/210:25:162
119591120,0ptp4l0-21swapper/208:35:152
119591120,0ptp4l0-21swapper/208:20:222
119591110,0ptp4l0-21swapper/209:02:152
119591100,2ptp4l0-21swapper/212:38:392
119591100,0ptp4l0-21swapper/310:39:453
119591100,0ptp4l0-21swapper/210:31:152
119591100,0ptp4l0-21swapper/209:39:152
119591100,0ptp4l0-21swapper/208:42:152
119591100,0ptp4l0-21swapper/208:28:152
119591100,0ptp4l0-21swapper/207:30:272
163449997,1cyclictest4693-21taskset11:50:073
163449997,1cyclictest3540-21egrep07:45:123
163449997,1cyclictest30858-21snmp_o5powerctl11:35:213
163449997,1cyclictest29410-21chrt10:33:413
163449997,1cyclictest27436-21chrt07:28:213
163449997,1cyclictest2694-21cut09:45:123
163449997,1cyclictest267272sleep310:28:123
163449997,1cyclictest25280-21sh11:25:203
163449997,1cyclictest2256-21egrep11:45:133
163449997,1cyclictest18845-21chrt09:14:543
163449997,1cyclictest18359-21expr12:15:143
163449997,1cyclictest1517-21taskset11:41:003
163449997,1cyclictest12952-21grep12:05:143
163449997,1cyclictest124232sleep312:04:523
163449997,1cyclictest11622-21head09:00:143
163449997,1cyclictest10061-21sort07:55:173
163449992,2cyclictest589-21dbus-daemon10:50:203
163449990,8cyclictest15815-21chrt10:09:513
163419997,1cyclictest6460-21cat11:50:242
163419997,1cyclictest24636-21grep09:25:152
163419997,1cyclictest23303-21chrt11:20:442
163419997,1cyclictest176832sleep212:14:202
163419997,1cyclictest1344-21expr07:40:162
11959190,0ptp4l0-21swapper/212:32:022
11959190,0ptp4l0-21swapper/212:25:582
11959190,0ptp4l0-21swapper/212:15:282
11959190,0ptp4l0-21swapper/212:05:272
11959190,0ptp4l0-21swapper/212:01:392
11959190,0ptp4l0-21swapper/211:55:262
11959190,0ptp4l0-21swapper/211:46:262
11959190,0ptp4l0-21swapper/211:38:362
11959190,0ptp4l0-21swapper/211:31:072
11959190,0ptp4l0-21swapper/211:07:152
11959190,0ptp4l0-21swapper/211:01:292
11959190,0ptp4l0-21swapper/210:55:222
11959190,0ptp4l0-21swapper/210:50:352
11959190,0ptp4l0-21swapper/210:47:282
11959190,0ptp4l0-21swapper/210:40:112
11959190,0ptp4l0-21swapper/210:18:432
11959190,0ptp4l0-21swapper/209:47:412
11959190,0ptp4l0-21swapper/209:40:112
11959190,0ptp4l0-21swapper/209:32:002
11959190,0ptp4l0-21swapper/209:22:382
11959190,0ptp4l0-21swapper/209:19:172
11959190,0ptp4l0-21swapper/209:11:122
11959190,0ptp4l0-21swapper/209:06:062
11959190,0ptp4l0-21swapper/208:55:202
11959190,0ptp4l0-21swapper/208:52:442
11959190,0ptp4l0-21swapper/208:45:102
11959190,0ptp4l0-21swapper/208:32:402
11959190,0ptp4l0-21swapper/208:17:452
11959190,0ptp4l0-21swapper/208:05:292
11959190,0ptp4l0-21swapper/208:04:542
11959190,0ptp4l0-21swapper/207:45:302
11959190,0ptp4l0-21swapper/207:28:152
11959190,0ptp4l0-21swapper/207:15:052
163449986,1cyclictest9046-21snmp_o5powerctl11:55:223
163449986,1cyclictest8950-21tail08:55:153
163449986,1cyclictest8587-21tail10:55:163
163449986,1cyclictest8090-21seq09:55:103
163449986,1cyclictest7081-21cat07:50:163
163449986,1cyclictest6739-21cut09:50:193
163449986,1cyclictest5926-21cat08:50:143
163449986,1cyclictest4676-21head10:45:243
163449986,1cyclictest3196-21cat07:45:013
163449986,1cyclictest30716-21tr07:35:113
163449986,1cyclictest30626-21grep08:35:143
163449986,1cyclictest29920-21tr09:35:133
163449986,1cyclictest2949-21chrt08:45:033
163449986,1cyclictest28898-21aten2.4-expect12:35:133
163449986,1cyclictest27857-21aten_r9power_en07:30:123
163449986,1cyclictest27462-21cut08:30:123
163449986,1cyclictest26919-21chrt08:26:303
163449986,1cyclictest26583-21cat12:30:133
163449986,1cyclictest26518-21cat11:30:123
163449986,1cyclictest25142sleep308:42:113
163449986,1cyclictest24675-21cut09:25:153
163449986,1cyclictest24147-21grep12:25:153
163449986,1cyclictest23450-21taskset09:20:213
163449986,1cyclictest22767-21head08:20:143
163449986,1cyclictest22592-21aten2.4-expect07:20:123
163449986,1cyclictest2252-21chrt10:42:573
163449986,1cyclictest22504-21head10:20:153
163449986,1cyclictest2122-21chrt09:41:563
163449986,1cyclictest21035-21cat12:20:143
163449986,1cyclictest20639-21taskset11:15:493
163449986,1cyclictest20068-21grep10:15:173
163449986,1cyclictest19986-21sort08:15:153
163449986,1cyclictest19678-21sed07:15:033
163449986,1cyclictest19355-21grep09:15:143
163449986,1cyclictest17313-21memory10:10:183
163449986,1cyclictest17313-21memory10:10:183
163449986,1cyclictest17308-21df08:10:143
163449986,1cyclictest16401-21sed07:10:023
163449986,1cyclictest15950-21stty11:10:123
163449986,1cyclictest15739-21expr12:10:123
163449986,1cyclictest15409-21fgrep09:05:213
163449986,1cyclictest14523-21expr08:05:133
163449986,1cyclictest13325-21cut11:05:113
163449986,1cyclictest12128-21tr11:00:203
163449986,1cyclictest11865-21expr08:00:143
163449986,1cyclictest11122-21expr10:00:143
163419986,1cyclictest16461-21apt07:10:142
163419986,1cyclictest11479-21smartctl10:00:152
11959180,0ptp4l0-21swapper/209:56:382
163449975,1cyclictest21675-21expr11:20:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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