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2025-04-03 - 23:53

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #1, 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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  Intel
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack1slot6s.osadl.org (updated Thu Apr 03, 2025 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29527999728,14cyclictest0-21swapper/005:54:300
2952799944,28cyclictest0-21swapper/006:29:190
2952799915,28cyclictest0-21swapper/008:38:350
29527999135,12cyclictest12683-21cpuspeed_turbos08:29:090
2953399893,11cyclictest0-21swapper/105:44:001
2952799894,33cyclictest0-21swapper/006:23:580
2953399873,12cyclictest0-21swapper/110:34:041
2953399864,9cyclictest1263-21runrttasks08:24:031
2953399834,12cyclictest0-21swapper/107:54:231
2953399833,12cyclictest0-21swapper/110:29:131
2953399823,12cyclictest0-21swapper/107:09:101
2953399814,12cyclictest0-21swapper/106:34:341
2953399814,12cyclictest0-21swapper/106:34:341
29533998115,38cyclictest26694-21netstat09:04:191
2952799811,40cyclictest0-21swapper/010:14:230
2952799811,40cyclictest0-21swapper/010:14:230
227799810,5rtkit-daemon2276-21rtkit-daemon05:34:433
2953399804,12cyclictest0-21swapper/110:24:051
2953399794,12cyclictest0-21swapper/109:09:271
2953399794,12cyclictest0-21swapper/108:49:121
2953399794,12cyclictest0-21swapper/108:49:121
2953399794,12cyclictest0-21swapper/108:44:101
2953399793,12cyclictest0-21swapper/105:44:381
227799790,4rtkit-daemon2276-21rtkit-daemon09:29:343
227799790,4rtkit-daemon2276-21rtkit-daemon09:29:343
227799790,4rtkit-daemon2276-21rtkit-daemon08:06:453
227799790,4rtkit-daemon2276-21rtkit-daemon08:06:453
29533997844,28cyclictest22173-21gltestperf07:29:151
2953399784,10cyclictest0-21swapper/108:04:171
2953399784,10cyclictest0-21swapper/108:04:171
29533997816,55cyclictest13594-21head09:54:041
227799780,4rtkit-daemon2276-21rtkit-daemon07:33:163
2953399774,12cyclictest0-21swapper/108:54:051
2953399774,12cyclictest0-21swapper/106:24:271
2953399773,11cyclictest28484-21munin-node06:29:331
227799770,4rtkit-daemon2276-21rtkit-daemon06:14:343
2953399764,13cyclictest0-21swapper/105:24:011
2953399764,11cyclictest0-21swapper/110:49:181
2953399763,12cyclictest0-21swapper/107:24:081
29533997618,41cyclictest32104-21cat05:29:021
2953399754,9cyclictest23842-21runrttasks06:19:101
2953399754,49cyclictest0-21swapper/109:14:241
2953399754,13cyclictest0-21swapper/108:38:451
2953399754,12cyclictest0-21swapper/107:19:301
2953399754,12cyclictest0-21swapper/107:19:301
2953399753,64cyclictest0-21swapper/109:49:041
2953399753,11cyclictest0-21swapper/107:08:571
29533997524,44cyclictest19306-21cpuspeed_turbos06:09:161
2953399744,63cyclictest0-21swapper/109:03:531
2953399744,12cyclictest0-21swapper/108:43:531
2953399744,12cyclictest0-21swapper/106:44:231
2953399743,57cyclictest0-21swapper/107:14:091
2953399743,12cyclictest0-21swapper/107:53:501
29533997421,47cyclictest13996-21latency_hist05:59:001
29533997414,53cyclictest13984-21unixbench-2d08:29:281
29533997413,54cyclictest0-21swapper/107:43:551
2953399734,62cyclictest4547-21munin-node08:09:101
2953399734,61cyclictest5459-21sshd09:33:251
2953399734,61cyclictest5459-21sshd09:33:251
2953399733,12cyclictest0-21swapper/106:09:001
2953399733,10cyclictest6932-21munin-node08:14:241
29533997319,47cyclictest1263-21runrttasks07:34:051
2953399724,61cyclictest0-21swapper/105:59:131
29533997225,40cyclictest1584-21fschecks_time09:24:061
29533997224,42cyclictest595-21hwlatdetect05:29:221
29533997223,43cyclictest9710-21cpuspeed_turbos05:49:151
2953399719,9cyclictest108850irq/46-eth010:44:051
2953399715,14cyclictest0-21swapper/110:13:511
2953399715,14cyclictest0-21swapper/110:13:511
2953399714,20cyclictest0-21swapper/106:42:101
2953399713,62cyclictest0-21swapper/109:45:061
2953399713,61cyclictest0-21swapper/109:38:311
29533997113,51cyclictest4245-21cpuspeed_turbos06:49:131
29533997017,46cyclictest28425-21unixbench_singl07:44:301
29533997014,48cyclictest1641-21nscd05:39:001
29533997010,52cyclictest0-21swapper/110:08:511
2953399699,52cyclictest0-21swapper/109:43:521
2953399694,9cyclictest554-21crond09:23:511
2953399693,59cyclictest21890-21munin-node06:14:161
2953399693,12cyclictest0-21swapper/110:39:271
2953399693,12cyclictest0-21swapper/108:23:541
2953399684,56cyclictest2090-21cat08:03:561
2953399684,12cyclictest0-21swapper/110:23:501
2953399683,58cyclictest0-21swapper/106:54:111
2953399683,16cyclictest0-21swapper/110:11:291
2953399673,19cyclictest0-21swapper/110:03:191
2953399664,9cyclictest8751-21runrttasks06:59:151
227799640,4rtkit-daemon2276-21rtkit-daemon07:18:092
227799610,6rtkit-daemon0-21swapper/208:43:363
227799600,4rtkit-daemon2276-21rtkit-daemon06:43:032
227799590,7rtkit-daemon0-21swapper/210:41:243
227799590,7rtkit-daemon0-21swapper/208:26:213
227799590,7rtkit-daemon0-21swapper/206:33:033
227799590,7rtkit-daemon0-21swapper/206:28:263
227799590,7rtkit-daemon0-21swapper/206:07:423
227799590,6rtkit-daemon0-21swapper/208:14:593
227799590,4rtkit-daemon2276-21rtkit-daemon09:40:492
227799590,13rtkit-daemon2276-21rtkit-daemon09:34:193
227799580,7rtkit-daemon0-21swapper/209:21:043
227799580,7rtkit-daemon0-21swapper/209:08:353
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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