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2026-04-19 - 13:17

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #e, slot #6

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.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of all highest latencies:
System rackeslot6s.osadl.org (updated Sun Apr 19, 2026 00:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
124423799907,51cyclictest0-21swapper/121:40:001
1244238998629,24cyclictest311ktimers/223:05:002
124423399781,30cyclictest0-21swapper/023:10:010
1244233997618,30cyclictest0-21swapper/019:15:300
1244237996846,17cyclictest1290531-21munin-plugin-st23:40:011
1244233996843,20cyclictest167350irq/118-8000000.ethernet-tx022:15:180
1244233996843,20cyclictest167350irq/118-8000000.ethernet-tx022:15:180
1244237996426,32cyclictest0-21swapper/119:45:181
1244237996223,33cyclictest0-21swapper/121:40:281
1244237996116,37cyclictest0-21swapper/100:10:281
1244237995917,36cyclictest0-21swapper/120:00:011
1244237995826,28cyclictest167450irq/126-8000000.ethernet-tx120:15:161
124423799573,45cyclictest1257207-21head20:20:271
124423799573,45cyclictest1257207-21head20:20:261
124423799572,48cyclictest1273843-21/usr/sbin/munin22:00:241
1244233995735,16cyclictest20850irq/208-8000000.ethernet19:10:290
124423799565,43cyclictest0-21swapper/121:15:291
124423799562,46cyclictest1264823-21sshd21:06:561
124423799552,45cyclictest1287964-21unixbench_singl23:20:301
1244237995519,29cyclictest0-21swapper/121:05:001
124423799551,47cyclictest1249230-21grep19:35:251
124423799551,45cyclictest1254911-21apt-get20:10:101
1244238995438,9cyclictest1259781-21sendmail20:40:002
124423799543,44cyclictest1267908-21/usr/sbin/munin21:25:241
124423799542,45cyclictest1289045-21apt-get23:30:161
124423799542,45cyclictest1285091-21/usr/sbin/munin23:05:261
124423799542,44cyclictest1283901-21apt-get23:00:161
124423799542,44cyclictest1281667-21/usr/sbin/munin22:45:271
124423799542,43cyclictest1287291-21wc23:20:011
124423799542,43cyclictest1262511-21apt-get20:55:121
1244237995420,29cyclictest0-21swapper/100:35:221
124423799541,43cyclictest1271121-21diskstats21:45:191
124423799532,43cyclictest0-21swapper/120:50:231
124423799532,39cyclictest1283041-21/usr/sbin/munin22:55:121
124423799532,39cyclictest1283041-21/usr/sbin/munin22:55:111
1244237995319,29cyclictest0-21swapper/119:25:011
124423799531,44cyclictest1291722-21ssh23:45:171
124423799531,42cyclictest1268649-21/usr/sbin/munin21:30:221
124423799522,43cyclictest1285876-21/usr/sbin/munin23:10:241
124423799522,43cyclictest1265397-21/usr/sbin/munin21:10:271
124423799522,42cyclictest1295258-21meminfo00:05:241
124423799522,42cyclictest1293452-21ssh23:55:221
124423799522,42cyclictest1276243-21ssh22:15:201
124423799522,42cyclictest1276243-21ssh22:15:201
124423799522,42cyclictest1251533-21apt-get19:50:121
124423799522,41cyclictest1278495-21grep22:25:281
124423799522,40cyclictest1259990-21/usr/sbin/munin20:40:251
124423799521,43cyclictest1277230-21perl22:20:211
124423799521,43cyclictest1272952-21/usr/sbin/munin21:55:231
124423799521,43cyclictest1261128-21meminfo20:45:241
124423799513,38cyclictest1288378-21sh23:25:221
124423799512,42cyclictest1292469-21/usr/sbin/munin23:50:161
1244237995124,21cyclictest1259663-21grep20:35:301
124423799512,41cyclictest1291002-21irqstats23:40:231
124423799512,41cyclictest1282409-21meminfo22:50:241
124423799512,41cyclictest0-21swapper/119:15:021
124423799512,40cyclictest1280133-21/usr/sbin/munin22:35:291
124423799511,44cyclictest1249925-21/usr/sbin/munin19:40:191
124423799511,44cyclictest1249925-21/usr/sbin/munin19:40:181
124423799511,44cyclictest1244403-21apt-get19:10:151
124423799511,43cyclictest1258387-21grep20:30:181
124423799511,43cyclictest1257455-21apt-get20:25:161
124423399512,44cyclictest1279262-21grep22:30:260
124423799505,37cyclictest0-21swapper/122:05:281
124423799505,37cyclictest0-21swapper/122:05:281
124423799502,40cyclictest1248160-21ssh19:30:201
124423799501,9cyclictest1294322-21/usr/sbin/munin00:00:231
124423799501,9cyclictest1294322-21/usr/sbin/munin00:00:221
124423799501,42cyclictest1299185-21apt-get00:30:161
124423799501,42cyclictest1298784-21/usr/sbin/munin00:25:291
124423799501,42cyclictest1298784-21/usr/sbin/munin00:25:291
124423799501,41cyclictest1296639-21apt-get00:15:151
124423799501,40cyclictest1253230-21/usr/sbin/munin20:00:241
124423799495,37cyclictest0-21swapper/122:45:021
124423799492,39cyclictest1278791-21df22:30:151
124423799492,39cyclictest1271960-21/usr/sbin/munin21:50:181
124423799492,39cyclictest1267201-21/usr/sbin/munin21:20:281
124423799492,2cyclictest1297502-21apt-get00:20:111
124423799491,39cyclictest1275464-21/usr/sbin/munin22:10:201
124423799491,39cyclictest1247290-21df_inode19:25:171
1244238994840,5cyclictest1256397-21run-parts20:20:012
1244238994837,7cyclictest1297214-21grep00:15:272
1244238994834,8cyclictest1248642-21grep19:30:302
124423799481,9cyclictest1254070-21/usr/sbin/munin20:05:301
124423399481,4cyclictest1289744-21latency_hist23:35:010
1244238994540,2cyclictest0-21swapper/200:20:182
124423799441,35cyclictest1244327-21latency_hist19:10:021
124423399446,10cyclictest0-21swapper/022:30:010
1244233994437,4cyclictest20650irq/252-8000000.ethernet21:45:190
1244233994436,4cyclictest20650irq/252-8000000.ethernet23:50:280
1244233994432,8cyclictest1258895-21grep20:30:270
1244238994331,6cyclictest0-21swapper/222:15:292
1244238994331,6cyclictest0-21swapper/222:15:292
1244238994328,11cyclictest0-21swapper/219:35:292
1244238994328,10cyclictest0-21swapper/221:20:192
1244233994330,9cyclictest1294654-21grep00:00:290
1244233994330,9cyclictest1294654-21grep00:00:290
124423399431,3cyclictest0-21swapper/019:10:000
1244238994231,7cyclictest1258842-21grep20:30:262
1244238994230,8cyclictest0-21swapper/221:35:282
1244238994221,14cyclictest311ktimers/219:40:162
1244238994221,14cyclictest311ktimers/219:40:152
1244233994237,4cyclictest0-21swapper/023:25:110
1244233994236,4cyclictest0-21swapper/023:35:250
1244233994234,4cyclictest20850irq/208-8000000.ethernet00:20:210
1244233994230,8cyclictest0-21swapper/022:50:280
1244233994227,13cyclictest20850irq/208-8000000.ethernet23:10:210
1244238994128,7cyclictest1261415-21grep20:45:282
1244238994126,10cyclictest0-21swapper/220:10:252
1244238994123,10cyclictest0-21swapper/221:10:292
1244233994133,5cyclictest1269902-21sh21:40:000
124423899403,22cyclictest1271024-21cat21:45:012
1244238994031,5cyclictest1287060-21apt-get23:20:002
1244238994030,5cyclictest0-21swapper/220:10:002
1244238994029,8cyclictest0-21swapper/223:55:012
1244238994029,5cyclictest0-21swapper/219:55:162
1244238994025,10cyclictest0-21swapper/222:25:192
1244238994024,10cyclictest0-21swapper/223:30:192
1244238994022,10cyclictest0-21swapper/221:00:272
1244238994017,17cyclictest30-21rcuc/223:25:192
1244233994034,4cyclictest0-21swapper/021:00:080
1244233994033,5cyclictest0-21swapper/000:10:160
1244233994029,7cyclictest1274966-21grep22:05:290
1244233994029,7cyclictest1274966-21grep22:05:290
1244233994029,7cyclictest0-21swapper/021:25:280
1244233994029,7cyclictest0-21swapper/019:55:280
1244233994029,4cyclictest0-21swapper/019:35:280
1244233994017,21cyclictest1281752-21mailstats22:45:270
124423899395,6cyclictest1256896-21kernelversion20:20:222
124423899395,6cyclictest1256896-21kernelversion20:20:212
1244238993924,11cyclictest311ktimers/219:45:112
1244238993923,10cyclictest30-21rcuc/223:00:012
1244238993923,10cyclictest30-21rcuc/223:00:012
1244238993917,16cyclictest311ktimers/200:10:112
1244233993932,4cyclictest0-21swapper/023:00:180
1244233993931,4cyclictest1257515-21ssh20:25:160
1244233993931,4cyclictest0-21swapper/022:40:000
124423399391,4cyclictest1286482-21df_inode23:15:160
124423399391,36cyclictest0-21swapper/021:55:240
124423399391,35cyclictest1295366-21tail00:05:250
124423399391,13cyclictest0-21swapper/021:25:010
1244238993824,7cyclictest0-21swapper/200:30:292
1244238993822,9cyclictest0-21swapper/200:10:002
124423899381,30cyclictest0-21swapper/222:54:592
124423899381,2cyclictest0-21swapper/220:55:022
124423899381,18cyclictest1300034-21/usr/sbin/munin00:35:192
1244233993832,4cyclictest0-21swapper/020:05:170
1244233993832,4cyclictest0-21swapper/019:29:590
1244233993831,4cyclictest20850irq/208-8000000.ethernet21:45:000
1244233993831,4cyclictest0-21swapper/019:20:120
1244233993830,4cyclictest167350irq/118-8000000.ethernet-tx022:10:200
1244233993829,5cyclictest1262217-21grep20:50:280
1244233993824,10cyclictest0-21swapper/000:15:200
124423399381,35cyclictest0-21swapper/021:10:240
1244238993730,3cyclictest1293901-21sh00:00:002
1244238993727,6cyclictest1280176-21grep22:35:302
1244238993727,4cyclictest0-21swapper/222:20:292
1244238993726,4cyclictest1286173-21head23:10:292
1244238993725,6cyclictest0-21swapper/220:25:282
1244233993731,4cyclictest0-21swapper/019:40:030
1244233993731,4cyclictest0-21swapper/019:40:030
1244233993730,4cyclictest20850irq/208-8000000.ethernet20:19:590
1244233993730,4cyclictest1300670-21cron00:39:590
1244233993716,19cyclictest0-21swapper/020:55:150
124423399371,34cyclictest0-21swapper/000:25:160
124423399371,34cyclictest0-21swapper/000:25:150
124423399371,33cyclictest0-21swapper/022:20:110
1244238993627,5cyclictest0-21swapper/221:05:302
1244238993626,6cyclictest1244932-21grep19:10:282
1244238993624,7cyclictest1274983-21grep22:05:292
1244238993624,7cyclictest1274983-21grep22:05:292
1244238993624,6cyclictest0-21swapper/220:55:302
1244238993622,8cyclictest0-21swapper/221:30:282
124423899361,28cyclictest1287981-21sshd23:20:552
1244233993631,3cyclictest0-21swapper/019:45:170
1244233993630,4cyclictest0-21swapper/020:48:090
1244233993629,4cyclictest0-21swapper/023:55:180
1244233993629,4cyclictest0-21swapper/023:40:260
1244233993628,4cyclictest0-21swapper/022:55:070
1244233993628,4cyclictest0-21swapper/022:55:070
1244233993617,17cyclictest0-21swapper/020:00:240
1244233993615,16cyclictest1280431-21/usr/sbin/munin22:40:170
124423399361,33cyclictest0-21swapper/022:05:000
1244238993523,6cyclictest1252101-21grep19:50:282
1244238993517,11cyclictest1266531-21sendmail21:20:002
1244233993529,4cyclictest0-21swapper/020:35:270
1244238993421,8cyclictest0-21swapper/220:40:272
1244238993419,9cyclictest0-21swapper/222:45:282
1244233993429,3cyclictest0-21swapper/023:45:150
1244233993429,2cyclictest0-21swapper/019:50:270
1244233993428,4cyclictest0-21swapper/023:20:230
1244233993427,4cyclictest0-21swapper/019:30:290
124423399341,21cyclictest1254371-1kworker/0:1H+kblockd21:20:010
1244238993323,4cyclictest0-21swapper/221:45:292
1244238993322,6cyclictest1281018-21grep22:40:272
124423899331,2cyclictest0-21swapper/223:50:002
1244233993326,4cyclictest0-21swapper/000:30:130
1244233993324,5cyclictest0-21swapper/020:40:210
124423399331,4cyclictest1268569-21lsblk21:30:210
1244238993224,5cyclictest0-21swapper/223:35:272
1244238993224,4cyclictest0-21swapper/222:00:282
1244233993223,6cyclictest167350irq/118-8000000.ethernet-tx020:20:150
1244233993223,6cyclictest167350irq/118-8000000.ethernet-tx020:20:150
124423399322,26cyclictest1272326-21rt-features21:50:260
1244233993222,5cyclictest0-21swapper/021:05:200
1244238993124,4cyclictest1253873-21munin-plugin-st20:04:592
1244238993119,6cyclictest0-21swapper/200:00:302
1244238993119,6cyclictest0-21swapper/200:00:302
124423899311,25cyclictest0-21swapper/200:25:192
124423899311,25cyclictest0-21swapper/200:25:182
124423899311,24cyclictest0-21swapper/223:40:262
124423899311,24cyclictest0-21swapper/219:25:242
1244233993125,4cyclictest0-21swapper/020:12:190
1244238993021,6cyclictest0-21swapper/219:15:202
1244238993017,8cyclictest0-21swapper/221:25:242
124423899297,11cyclictest0-21swapper/221:55:022
1244238992921,4cyclictest1285371-21cron23:10:012
1244238992920,5cyclictest0-21swapper/221:55:292
1244238992917,6cyclictest1246987-21grep19:20:292
124423899285,14cyclictest30-21rcuc/219:10:012
1244238992721,3cyclictest1279334-21grep22:30:282
124423899251,22cyclictest0-21swapper/222:12:182
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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