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2026-04-04 - 10:52

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 the 792 highest latencies:
System rackeslot6s.osadl.org (updated Sat Apr 04, 2026 00:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
533644998478,4cyclictest30-21rcuc/219:20:012
53363999771,9cyclictest558965-21/usr/sbin/munin21:35:190
533639997642,29cyclictest167350irq/118-8000000.ethernet-tx019:20:240
533639997642,29cyclictest167350irq/118-8000000.ethernet-tx019:20:240
533639997439,32cyclictest539807-21grep19:44:590
533639997428,10cyclictest0-21swapper/022:00:200
533639997212,53cyclictest0-21swapper/022:10:200
53363999711,11cyclictest0-21swapper/019:30:170
533639996923,15cyclictest131ktimers/021:55:140
533639996923,15cyclictest131ktimers/021:55:140
53363999672,31cyclictest566459-21latency_hist22:20:010
533639996711,51cyclictest0-21swapper/000:00:020
533639996638,23cyclictest570546-21apt22:45:000
53363999661,31cyclictest581780-21latency_hist23:50:020
533639996425,9cyclictest0-21swapper/022:25:280
533644996345,12cyclictest311ktimers/223:55:142
53363999591,7cyclictest590533-21latency_hist00:40:020
533639995817,34cyclictest534593-21latency_hist19:15:020
53364499565,25cyclictest32-21ksoftirqd/221:30:012
533639995645,7cyclictest586944-21sendmail00:19:590
53363999551,39cyclictest14-21rcu_preempt20:00:010
533644995444,5cyclictest587794-21munin-plugin-st00:25:002
533639995434,16cyclictest167350irq/118-8000000.ethernet-tx020:40:260
53363999541,50cyclictest0-21swapper/023:30:110
533644995236,13cyclictest311ktimers/200:10:142
533644995214,7cyclictest579820-21apt-get23:40:012
533641995215,16cyclictest566227-21apt-get22:20:021
533644995042,5cyclictest584414-21munin-plugin-st00:05:002
533644995031,10cyclictest0-21swapper/223:50:012
533644994937,9cyclictest311ktimers/221:45:142
533644994929,13cyclictest311ktimers/200:35:122
533644994838,5cyclictest538860-21grep19:35:282
533644994833,10cyclictest552562-21grep20:55:272
533644994824,17cyclictest311ktimers/219:30:122
53364199485,6cyclictest0-21swapper/120:55:001
53364199481,2cyclictest0-21swapper/122:35:001
533639994821,6cyclictest582803-21latency_hist23:55:020
533644994726,14cyclictest0-21swapper/220:40:012
53363999472,41cyclictest584300-21sed00:00:280
533644994640,4cyclictest30-21rcuc/222:05:022
533644994632,10cyclictest0-21swapper/223:20:282
533644994630,12cyclictest311ktimers/219:20:152
533644994630,12cyclictest311ktimers/219:20:152
533644994627,14cyclictest311ktimers/223:00:112
533644994626,14cyclictest311ktimers/222:00:112
533644994624,16cyclictest311ktimers/223:30:132
533641994634,8cyclictest0-21swapper/121:54:591
53364199462,9cyclictest0-21swapper/120:00:001
53363999464,12cyclictest0-21swapper/019:10:000
533644994539,4cyclictest311ktimers/219:50:162
533644994537,5cyclictest30-21rcuc/200:35:002
533644994533,9cyclictest311ktimers/222:20:122
533644994530,10cyclictest0-21swapper/220:45:272
533641994537,4cyclictest549131-21grep20:35:291
533639994538,3cyclictest167350irq/118-8000000.ethernet-tx000:10:000
533639994533,7cyclictest585978-21grep00:10:250
533644994431,9cyclictest0-21swapper/221:10:282
533644994426,13cyclictest311ktimers/221:30:142
533644994411,30cyclictest0-21swapper/219:40:272
53363999442,31cyclictest578263-21latency_hist23:30:000
53363999441,4cyclictest587683-21grep00:20:290
533644994331,9cyclictest311ktimers/222:50:152
533644994331,9cyclictest311ktimers/222:50:152
533644994329,7cyclictest0-21swapper/223:15:232
533644994327,12cyclictest0-21swapper/221:20:262
533641994332,7cyclictest0-21swapper/100:10:251
53364199431,7cyclictest0-21swapper/123:35:021
533639994336,4cyclictest167350irq/118-8000000.ethernet-tx019:50:240
533639994334,5cyclictest0-21swapper/022:55:280
53363999431,7cyclictest0-21swapper/019:50:000
533644994231,8cyclictest0-21swapper/220:30:002
533644994229,10cyclictest311ktimers/221:50:142
533644994228,8cyclictest0-21swapper/220:50:282
533639994236,3cyclictest167350irq/118-8000000.ethernet-tx023:00:210
53363999422,4cyclictest564654-21latency_hist22:10:000
533644994131,6cyclictest554260-21grep21:05:282
533644994129,7cyclictest0-21swapper/223:05:272
533644994129,7cyclictest0-21swapper/220:40:272
533644994129,10cyclictest311ktimers/220:00:142
533644994125,12cyclictest311ktimers/220:15:122
533644994124,11cyclictest311ktimers/200:05:122
53364199411,4cyclictest0-21swapper/120:30:011
533639994124,15cyclictest0-21swapper/023:35:150
53363999411,4cyclictest552921-21diskstats21:00:180
53363999411,4cyclictest552921-21diskstats21:00:180
53363999411,37cyclictest0-21swapper/021:50:270
53364499409,3cyclictest0-21swapper/221:00:222
53364499409,3cyclictest0-21swapper/221:00:222
533644994028,7cyclictest0-21swapper/223:40:282
533644994026,10cyclictest0-21swapper/223:10:272
533644994024,13cyclictest311ktimers/222:10:142
533644994022,11cyclictest311ktimers/222:40:132
533641994031,5cyclictest587702-21grep00:20:301
533641994027,10cyclictest0-21swapper/123:10:191
533641994024,10cyclictest0-21swapper/100:30:291
533641994023,13cyclictest231ktimers/121:20:151
533639994034,4cyclictest20850irq/208-8000000.ethernet21:50:020
533639994034,4cyclictest0-21swapper/021:10:120
533639994034,3cyclictest20650irq/252-8000000.ethernet19:35:110
53363999402,4cyclictest575935-21fschecks_time23:15:190
53363999402,4cyclictest557705-21apt-get21:30:020
53363999402,36cyclictest0-21swapper/022:20:320
533639994022,16cyclictest0-21swapper/023:05:170
533644993925,8cyclictest0-21swapper/219:10:172
533644993925,5cyclictest0-21swapper/222:55:212
533644993923,11cyclictest311ktimers/221:40:122
533641993931,5cyclictest0-21swapper/119:35:001
533641993928,6cyclictest0-21swapper/119:15:011
53364199391,4cyclictest0-21swapper/100:20:011
533639993933,2cyclictest0-21swapper/019:20:010
533639993931,5cyclictest20850irq/208-8000000.ethernet22:30:260
533639993931,4cyclictest0-21swapper/020:05:010
53363999391,4cyclictest0-21swapper/021:05:010
53363999391,3cyclictest559694-21apt-get21:40:130
53363999391,36cyclictest576820-21ssh23:20:190
533644993831,4cyclictest566221-21cron22:19:592
533644993828,5cyclictest311ktimers/221:55:122
533644993828,5cyclictest311ktimers/221:55:122
533641993829,6cyclictest543273-21munin-plugin-st20:05:001
533641993820,10cyclictest0-21swapper/119:50:201
533639993832,4cyclictest0-21swapper/020:20:150
533639993830,4cyclictest588586-21unixbench_singl00:25:280
533639993830,4cyclictest588586-21unixbench_singl00:25:270
53363999381,35cyclictest0-21swapper/022:35:190
53363999381,35cyclictest0-21swapper/021:15:150
53363999381,35cyclictest0-21swapper/020:55:180
533644993728,4cyclictest0-21swapper/200:15:202
533644993725,9cyclictest0-21swapper/219:30:022
533644993724,9cyclictest0-21swapper/221:35:152
53364199379,17cyclictest583772-21/usr/sbin/munin00:00:181
533641993726,8cyclictest22-21rcuc/119:25:211
533641993724,9cyclictest0-21swapper/122:50:271
533641993724,9cyclictest0-21swapper/122:50:271
533641993724,9cyclictest0-21swapper/119:40:291
533641993723,10cyclictest0-21swapper/120:10:241
53364199371,32cyclictest0-21swapper/120:15:251
53364199371,12cyclictest583469-21apt-get00:00:011
53363999375,28cyclictest0-21swapper/021:20:280
533639993730,4cyclictest0-21swapper/022:50:130
533639993730,4cyclictest0-21swapper/022:50:130
53363999371,4cyclictest0-21swapper/021:35:010
53363999371,4cyclictest0-21swapper/000:30:120
53363999371,3cyclictest575268-21awk23:10:240
533644993624,6cyclictest0-21swapper/222:45:172
533644993624,6cyclictest0-21swapper/219:45:252
53364499361,2cyclictest0-21swapper/220:15:012
533641993627,5cyclictest0-21swapper/122:55:181
533641993627,4cyclictest0-21swapper/123:00:181
533639993629,4cyclictest0-21swapper/023:40:140
53363999361,33cyclictest0-21swapper/022:45:170
53363999361,33cyclictest0-21swapper/020:45:200
53363999361,33cyclictest0-21swapper/020:09:440
53364199356,4cyclictest549167-21apt-get20:40:011
533641993527,4cyclictest0-21swapper/120:05:291
533641993526,5cyclictest0-21swapper/122:35:291
533641993522,9cyclictest0-21swapper/120:30:281
533641993519,9cyclictest0-21swapper/100:35:281
53364199351,28cyclictest0-21swapper/122:00:001
53364199351,28cyclictest0-21swapper/122:00:001
533639993522,8cyclictest0-21swapper/019:25:260
53363999351,4cyclictest545448-21meminfo20:15:230
53363999351,3cyclictest0-21swapper/020:25:110
53363999351,32cyclictest0-21swapper/020:35:130
53363999351,32cyclictest0-21swapper/020:34:200
533644993429,2cyclictest0-21swapper/220:25:022
533644993420,7cyclictest0-21swapper/222:25:252
533644993417,12cyclictest311ktimers/223:50:122
533641993425,5cyclictest0-21swapper/122:45:191
533641993423,8cyclictest0-21swapper/122:40:291
533641993422,8cyclictest0-21swapper/122:05:211
53364199341,27cyclictest0-21swapper/123:15:141
53363999341,3cyclictest0-21swapper/020:50:310
533644993321,6cyclictest0-21swapper/222:30:162
533641993323,7cyclictest0-21swapper/121:15:291
533641993321,8cyclictest0-21swapper/122:15:261
533641993320,9cyclictest0-21swapper/121:45:181
533641993318,11cyclictest0-21swapper/123:40:011
533641993314,11cyclictest0-21swapper/100:05:191
53363999331,7cyclictest544928-21sshd20:11:150
53364499321,5cyclictest0-21swapper/221:17:192
533641993224,5cyclictest0-21swapper/119:45:261
533641993223,6cyclictest574123-21/usr/sbin/munin23:05:231
533641993222,8cyclictest555162-21cron21:15:011
53364499319,15cyclictest311ktimers/220:05:152
53364499315,15cyclictest542308-21sed19:55:272
533644993123,5cyclictest0-21swapper/222:35:302
533644993122,4cyclictest0-21swapper/200:25:272
533644993122,4cyclictest0-21swapper/200:25:262
533644993121,7cyclictest311ktimers/223:25:242
53364199316,13cyclictest559691-21/usr/sbin/munin21:40:191
53364199315,2cyclictest0-21swapper/121:40:001
533641993125,4cyclictest167450irq/126-8000000.ethernet-tx119:40:011
533641993124,5cyclictest231ktimers/122:25:251
533641993123,4cyclictest0-21swapper/123:20:201
533641993122,7cyclictest558626-21sshd21:34:151
533641993116,12cyclictest0-21swapper/123:40:291
533644993022,5cyclictest547685-21/usr/sbin/munin20:30:272
533641993021,5cyclictest0-21swapper/123:45:291
533641993019,8cyclictest0-21swapper/122:10:291
533641993017,8cyclictest0-21swapper/119:10:011
533641993013,4cyclictest167450irq/126-8000000.ethernet-tx100:25:281
533641993013,4cyclictest167450irq/126-8000000.ethernet-tx100:25:281
53364199301,23cyclictest0-21swapper/122:00:111
533641992923,4cyclictest0-21swapper/120:20:261
533644992823,3cyclictest533634-21cyclictest19:10:012
533641992822,4cyclictest0-21swapper/121:00:271
533641992822,4cyclictest0-21swapper/121:00:271
533641992821,4cyclictest0-21swapper/119:20:111
533641992821,4cyclictest0-21swapper/119:20:111
533641992819,6cyclictest0-21swapper/120:55:271
53364199281,4cyclictest0-21swapper/123:25:211
533641992811,4cyclictest167450irq/126-8000000.ethernet-tx119:15:261
533641992717,7cyclictest0-21swapper/121:05:251
533641992716,8cyclictest0-21swapper/123:50:291
533641992715,10cyclictest557715-21gpgv21:30:021
533641992615,7cyclictest0-21swapper/120:45:261
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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