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2026-08-10 - 03:29

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 Mon Aug 10, 2026 00:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
119591670,40ptp4l0-21swapper/019:05:160
119591660,48ptp4l0-21swapper/119:05:221
2405625349,2sleep20-21swapper/219:07:412
2405725147,2sleep30-21swapper/319:07:413
119591190,0ptp4l0-21swapper/023:15:170
2449799185,12cyclictest25-21ksoftirqd/120:15:171
119591180,0ptp4l0-21swapper/122:10:191
119591180,0ptp4l0-21swapper/100:00:181
119591180,0ptp4l0-21swapper/019:25:120
119591170,1ptp4l20808-21apt-get00:05:170
119591170,0ptp4l0-21swapper/122:45:341
119591170,0ptp4l0-21swapper/000:15:210
119591160,1ptp4l9689-21ls21:40:191
119591160,1ptp4l28917-21ls22:15:231
119591160,1ptp4l27024-21apt-get22:15:110
119591160,1ptp4l2580-21apt-get22:30:110
119591160,1ptp4l23787-21apt-get23:10:130
119591160,1ptp4l22478-21snmp_o5powerctl00:05:271
119591160,1ptp4l2207-21apt-get23:30:131
119591160,1ptp4l19891-21diskstats20:00:231
119591160,1ptp4l19454-21apt-get21:00:121
119591160,1ptp4l18543-21ls20:55:260
119591160,1ptp4l1604-21snmp_o5powerctl22:25:241
119591160,1ptp4l12956-21snmp_o5powerctl20:45:221
119591160,0ptp4l0-21swapper/122:35:251
119591160,0ptp4l0-21swapper/121:10:171
119591160,0ptp4l0-21swapper/021:35:110
119591160,0ptp4l0-21swapper/021:20:220
119591160,0ptp4l0-21swapper/000:10:170
119591150,1ptp4l9517-21tail23:40:230
119591150,1ptp4l7891-21apt-get22:40:120
119591150,1ptp4l4842-21snmp_o5powerctl21:30:260
119591150,1ptp4l4602-21apt-get23:34:560
119591150,1ptp4l3952-21df19:30:140
119591150,1ptp4l32623-21tr22:25:140
119591150,1ptp4l32123-21sort22:25:010
119591150,1ptp4l31373-21snmp_o5powerctl22:20:221
119591150,1ptp4l29616-21snmp_o5powerctl19:15:250
119591150,1ptp4l25651-21irqstats19:10:181
119591150,1ptp4l2517-21unixbench_singl21:25:230
119591150,1ptp4l25024-21missed_timers23:10:192
119591150,1ptp4l2475-21grep00:30:140
119591150,1ptp4l23430-21ntpq20:05:201
119591150,1ptp4l22418-21hddtemp_smartct22:05:161
119591150,1ptp4l17209-21ntp_states22:55:200
119591150,1ptp4l16124-21cstates22:55:151
119591150,1ptp4l15943-21timerwakeupswit19:50:240
119591150,1ptp4l15593-21snmp_o5powerctl20:50:200
119591150,1ptp4l14566-21ntp_states22:50:190
119591150,1ptp4l14249-21diskstats21:50:150
119591150,1ptp4l13627-21sed21:50:010
119591150,1ptp4l10770-21fschecks_time23:45:141
119591150,1ptp4l10392-21unixbench_singl20:40:240
119591150,0ptp4l31759-21apt-get00:25:160
119591150,0ptp4l27346-21apt-get20:15:120
119591150,0ptp4l0-21swapper/123:55:231
119591150,0ptp4l0-21swapper/123:25:111
119591150,0ptp4l0-21swapper/123:15:231
119591150,0ptp4l0-21swapper/122:50:151
119591150,0ptp4l0-21swapper/122:00:251
119591150,0ptp4l0-21swapper/121:55:211
119591150,0ptp4l0-21swapper/121:50:131
119591150,0ptp4l0-21swapper/121:15:141
119591150,0ptp4l0-21swapper/120:40:021
119591150,0ptp4l0-21swapper/120:35:131
119591150,0ptp4l0-21swapper/120:20:121
119591150,0ptp4l0-21swapper/119:55:241
119591150,0ptp4l0-21swapper/119:37:321
119591150,0ptp4l0-21swapper/119:15:141
119591150,0ptp4l0-21swapper/100:30:171
119591150,0ptp4l0-21swapper/100:25:251
119591150,0ptp4l0-21swapper/100:10:011
119591150,0ptp4l0-21swapper/022:00:150
119591150,0ptp4l0-21swapper/021:40:240
119591150,0ptp4l0-21swapper/020:45:130
119591150,0ptp4l0-21swapper/020:05:220
119591150,0ptp4l0-21swapper/019:55:140
119591140,1ptp4l9910-21users22:40:261
119591140,1ptp4l6563-21snmp_o5powerctl23:35:220
119591140,1ptp4l6501-21grep00:35:230
119591140,1ptp4l10667-21df23:45:130
119591140,0ptp4l26203-21ls22:10:230
119591140,0ptp4l0-21swapper/221:55:132
119591140,0ptp4l0-21swapper/123:50:141
119591140,0ptp4l0-21swapper/123:40:141
119591140,0ptp4l0-21swapper/123:35:171
119591140,0ptp4l0-21swapper/123:20:241
119591140,0ptp4l0-21swapper/123:10:151
119591140,0ptp4l0-21swapper/123:05:141
119591140,0ptp4l0-21swapper/122:30:141
119591140,0ptp4l0-21swapper/121:45:171
119591140,0ptp4l0-21swapper/121:35:131
119591140,0ptp4l0-21swapper/121:30:171
119591140,0ptp4l0-21swapper/121:25:171
119591140,0ptp4l0-21swapper/121:20:121
119591140,0ptp4l0-21swapper/121:05:141
119591140,0ptp4l0-21swapper/120:55:191
119591140,0ptp4l0-21swapper/120:50:131
119591140,0ptp4l0-21swapper/120:30:141
119591140,0ptp4l0-21swapper/120:25:181
119591140,0ptp4l0-21swapper/120:10:211
119591140,0ptp4l0-21swapper/119:50:151
119591140,0ptp4l0-21swapper/119:45:241
119591140,0ptp4l0-21swapper/119:40:161
119591140,0ptp4l0-21swapper/119:30:151
119591140,0ptp4l0-21swapper/119:25:171
119591140,0ptp4l0-21swapper/119:20:181
119591140,0ptp4l0-21swapper/119:20:181
119591140,0ptp4l0-21swapper/100:35:141
119591140,0ptp4l0-21swapper/100:20:141
119591140,0ptp4l0-21swapper/100:15:191
119591140,0ptp4l0-21swapper/023:55:150
119591140,0ptp4l0-21swapper/023:50:220
119591140,0ptp4l0-21swapper/023:25:140
119591140,0ptp4l0-21swapper/023:20:230
119591140,0ptp4l0-21swapper/023:05:220
119591140,0ptp4l0-21swapper/023:00:230
119591140,0ptp4l0-21swapper/022:45:150
119591140,0ptp4l0-21swapper/022:35:150
119591140,0ptp4l0-21swapper/022:05:190
119591140,0ptp4l0-21swapper/021:55:140
119591140,0ptp4l0-21swapper/021:15:170
119591140,0ptp4l0-21swapper/021:10:180
119591140,0ptp4l0-21swapper/020:35:180
119591140,0ptp4l0-21swapper/020:30:180
119591140,0ptp4l0-21swapper/020:25:230
119591140,0ptp4l0-21swapper/020:20:140
119591140,0ptp4l0-21swapper/020:10:190
119591140,0ptp4l0-21swapper/020:00:260
119591140,0ptp4l0-21swapper/019:45:140
119591140,0ptp4l0-21swapper/019:20:160
119591140,0ptp4l0-21swapper/019:20:160
119591140,0ptp4l0-21swapper/019:10:140
119591140,0ptp4l0-21swapper/000:20:170
119591140,0ptp4l0-21swapper/000:00:190
119591130,0ptp4l0-21swapper/223:40:192
119591130,0ptp4l0-21swapper/223:25:132
119591130,0ptp4l0-21swapper/222:35:172
119591130,0ptp4l0-21swapper/222:10:212
119591130,0ptp4l0-21swapper/221:35:212
119591130,0ptp4l0-21swapper/219:55:202
119591130,0ptp4l0-21swapper/219:15:142
119591130,0ptp4l0-21swapper/200:35:172
119591130,0ptp4l0-21swapper/123:00:121
119591130,0ptp4l0-21swapper/021:05:130
119591130,0ptp4l0-21swapper/021:00:140
119591130,0ptp4l0-21swapper/019:40:140
119591130,0ptp4l0-21swapper/019:35:160
322842110,0sleep30-21swapper/323:25:133
119591110,2ptp4l0-21swapper/223:20:302
119591110,0ptp4l0-21swapper/223:04:132
119591110,0ptp4l0-21swapper/222:50:172
119591100,1ptp4l31131-21kworker/2:120:22:102
119591100,1ptp4l0-21swapper/223:48:492
119591100,1ptp4l0-21swapper/220:14:552
119591100,0ptp4l0-21swapper/222:34:572
119591100,0ptp4l0-21swapper/222:20:182
119591100,0ptp4l0-21swapper/222:04:032
244999997,1cyclictest8446-21seq21:40:103
244999997,1cyclictest8179-21cat22:40:143
244999997,1cyclictest7408-21chrt22:37:213
244999997,1cyclictest3668-21tr19:30:133
244999997,1cyclictest30822-21expr19:20:143
244999997,1cyclictest30822-21expr19:20:143
244999997,1cyclictest26051-21snmp_o5powerctl22:10:223
244999997,1cyclictest2430-21chrt20:27:143
244999997,1cyclictest239512sleep322:07:513
244999997,1cyclictest19898-21cat00:00:313
244999997,1cyclictest18458-21taskset21:55:333
244999997,1cyclictest1530-21cut21:25:173
244999997,1cyclictest14295-21tr19:50:153
244999997,1cyclictest13727-21interrupts23:50:173
244999997,1cyclictest12848-21chrt22:48:583
244999997,1cyclictest10174-21chrt23:45:113
244989997,1cyclictest8607-21ls19:40:002
244989997,1cyclictest32122-21tr19:20:212
244989997,1cyclictest32122-21tr19:20:212
244989997,1cyclictest29723-21chrt20:19:452
244989997,1cyclictest27740-21cut23:15:192
244989997,1cyclictest242682sleep221:07:062
11959190,1ptp4l0-21swapper/220:58:122
11959190,0ptp4l0-21swapper/321:08:013
11959190,0ptp4l0-21swapper/223:56:262
11959190,0ptp4l0-21swapper/223:35:472
11959190,0ptp4l0-21swapper/223:30:112
11959190,0ptp4l0-21swapper/223:05:102
11959190,0ptp4l0-21swapper/222:58:022
11959190,0ptp4l0-21swapper/222:47:312
11959190,0ptp4l0-21swapper/222:26:292
11959190,0ptp4l0-21swapper/222:15:032
11959190,0ptp4l0-21swapper/222:06:092
11959190,0ptp4l0-21swapper/221:51:322
11959190,0ptp4l0-21swapper/221:46:302
11959190,0ptp4l0-21swapper/221:42:092
11959190,0ptp4l0-21swapper/221:32:502
11959190,0ptp4l0-21swapper/221:26:262
11959190,0ptp4l0-21swapper/221:21:122
11959190,0ptp4l0-21swapper/220:54:352
11959190,0ptp4l0-21swapper/220:45:342
11959190,0ptp4l0-21swapper/220:32:502
11959190,0ptp4l0-21swapper/220:27:182
11959190,0ptp4l0-21swapper/220:01:032
11959190,0ptp4l0-21swapper/219:53:412
11959190,0ptp4l0-21swapper/219:41:132
11959190,0ptp4l0-21swapper/219:27:342
11959190,0ptp4l0-21swapper/219:11:022
11959190,0ptp4l0-21swapper/200:22:092
11959190,0ptp4l0-21swapper/200:16:282
11959190,0ptp4l0-21swapper/200:11:152
11959190,0ptp4l0-21swapper/200:07:382
244999986,1cyclictest9074-21cut20:40:163
244999986,1cyclictest8841-21grep23:40:183
244999986,1cyclictest7026-21chrt23:36:423
244999986,1cyclictest6521-21basename21:35:143
244999986,1cyclictest5821-21cut20:35:143
244999986,1cyclictest4856-21aten_r9power_cu00:35:143
244999986,1cyclictest4177-21wc22:30:193
244999986,1cyclictest414-21uname00:25:213
244999986,1cyclictest3581-21expr21:30:173
244999986,1cyclictest3375-21df20:30:143
244999986,1cyclictest31831-21chrt21:20:233
244999986,1cyclictest31545-21sed22:20:233
244999986,1cyclictest30995-21date00:20:223
244999986,1cyclictest30233-21taskset19:18:443
244999986,1cyclictest30100-21basename20:20:133
244999986,1cyclictest29170-21head23:20:133
244999986,1cyclictest28190-21if_enp3s021:15:193
244999986,1cyclictest27952-21tr00:15:213
244999986,1cyclictest27480-21egrep20:15:133
244999986,1cyclictest2744-21grep00:30:153
244999986,1cyclictest27116-21tail22:15:123
244999986,1cyclictest26503-21stty23:15:133
244999986,1cyclictest2627-21expr23:30:143
244999986,1cyclictest25395-21head21:10:193
244999986,1cyclictest24912-21tr20:10:183
244999986,1cyclictest24561-21cut19:10:123
244999986,1cyclictest24002-21tr23:10:143
244999986,1cyclictest23697-21cat00:10:013
244999986,1cyclictest23359-21taskset23:07:463
244999986,1cyclictest22243-21cat20:05:143
244999986,1cyclictest20957-21tr21:00:223
244999986,1cyclictest20840-21threads22:00:253
244999986,1cyclictest20773-21taskset00:05:123
244999986,1cyclictest19730-21cat20:00:223
244999986,1cyclictest18523-21telnet23:00:123
244999986,1cyclictest18045-21cut19:55:203
244999986,1cyclictest1764-21cat22:25:243
244999986,1cyclictest17168-21expr20:55:173
244999986,1cyclictest17034-21date22:55:183
244999986,1cyclictest16832-21nfs4_client23:55:183
244999986,1cyclictest15249-21cut21:50:203
244999986,1cyclictest14897-21tr20:50:163
244999986,1cyclictest14410-21expr22:50:173
244999986,1cyclictest130142sleep321:45:253
244999986,1cyclictest12943-21sensors20:45:223
244999986,1cyclictest12716-21cat19:45:183
244989986,1cyclictest8422-21apt-get20:40:142
244989986,1cyclictest7985-21stty22:40:132
244989986,1cyclictest55072sleep220:35:062
244989986,1cyclictest334-21tr00:25:202
244989986,1cyclictest3077-21interrupts00:30:182
244989986,1cyclictest27628-21tr21:15:162
244989986,1cyclictest24938-21cpuspeed_turbos21:10:172
244989986,1cyclictest22037-21cat20:05:132
244989986,1cyclictest20605-21grep21:00:182
244989986,1cyclictest18517-21cat00:00:162
244989986,1cyclictest13817-21tr23:50:172
244989986,1cyclictest13027-21gunzip19:45:212
11959180,0ptp4l0-21swapper/219:32:422
244999976,1cyclictest10224-21phc2sys19:40:213
244999975,1cyclictest786-21chrt19:25:093
244999975,1cyclictest6564-21expr19:35:173
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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