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2026-06-29 - 22:49

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 100 highest latencies:
System rackeslot6s.osadl.org (updated Mon Jun 29, 2026 12:44:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1467491996928,28cyclictest0-21swapper/212:30:002
1467491996618,13cyclictest1503862-21/usr/sbin/munin10:40:202
1467489996357,2cyclictest0-21swapper/107:40:031
1467489996357,2cyclictest0-21swapper/107:40:021
1467491996131,26cyclictest274-21systemd-journal08:55:002
1467491996127,5cyclictest0-21swapper/208:45:292
146748699611,58cyclictest0-21swapper/009:00:090
1467491996026,27cyclictest0-21swapper/212:10:202
146749199599,13cyclictest1523350-21/usr/sbin/munin12:35:242
1467491995920,8cyclictest0-21swapper/208:20:212
1467491995830,23cyclictest1507816-21grep11:00:272
1467491995830,23cyclictest0-21swapper/208:10:312
1467491995725,25cyclictest0-21swapper/210:10:012
146748999579,18cyclictest1487542-21/usr/sbin/munin09:05:201
146748999579,18cyclictest1487542-21/usr/sbin/munin09:05:201
1467491995626,25cyclictest1482120-21unixbench_singl08:30:262
1467491995619,10cyclictest0-21swapper/209:25:252
1467491995523,5cyclictest1514517-21grep11:40:282
1467491995423,7cyclictest0-21swapper/211:45:302
1467491995423,7cyclictest0-21swapper/211:45:302
1467491995421,6cyclictest0-21swapper/212:30:142
1467491995421,4cyclictest0-21swapper/211:30:212
1467491995327,21cyclictest0-21swapper/207:35:182
1467491995327,21cyclictest0-21swapper/207:35:182
1467489995346,4cyclictest1501878-21grep10:30:011
1467489995319,13cyclictest22-21rcuc/110:55:191
146748699532,7cyclictest0-21swapper/010:55:010
1467491995112,12cyclictest1467650-21/usr/sbin/munin07:10:182
1467486995137,9cyclictest1517197-21latency_hist12:00:010
1467486995137,9cyclictest1517197-21latency_hist12:00:010
1467491995024,5cyclictest1493273-21grep09:35:282
1467489995041,5cyclictest1489869-21munin-plugin-st09:20:001
1467486995041,4cyclictest1504505-21munin-plugin-st10:45:010
1467486995037,10cyclictest1283-21cron11:14:590
146748999496,13cyclictest24-21ksoftirqd/108:55:001
1467489994913,29cyclictest231ktimers/107:55:231
146748999485,29cyclictest1469635-21/usr/sbin/munin07:20:191
1467489994839,5cyclictest0-21swapper/109:25:271
1467491994719,8cyclictest1479544-21grep08:15:292
1467486994740,4cyclictest20850irq/208-8000000.ethernet09:55:280
1467491994631,10cyclictest0-21swapper/208:00:282
1467491994631,10cyclictest0-21swapper/208:00:282
1467486994637,4cyclictest0-21swapper/010:15:130
1467491994511,8cyclictest1477024-21apt-get08:05:022
1467489994536,6cyclictest1517157-21sendmail12:00:001
1467489994536,6cyclictest1517157-21sendmail12:00:001
1467489994511,28cyclictest0-21swapper/111:40:161
1467486994538,4cyclictest0-21swapper/012:10:100
1467486994535,6cyclictest1520625-21sendmail12:20:000
146748699451,5cyclictest1479507-21xargs08:15:270
146748699451,3cyclictest0-21swapper/012:35:280
1467491994428,10cyclictest0-21swapper/211:10:222
1467486994414,28cyclictest0-21swapper/008:05:010
1467486994414,28cyclictest0-21swapper/008:05:010
1467491994332,7cyclictest1471953-21munin-plugin-st07:35:012
1467489994335,5cyclictest0-21swapper/110:50:001
1467489994332,7cyclictest231ktimers/108:20:021
1467489994332,7cyclictest0-21swapper/112:35:351
146748999433,14cyclictest0-21swapper/112:30:011
1467489994315,23cyclictest231ktimers/108:22:401
1467486994336,4cyclictest167350irq/118-8000000.ethernet-tx012:00:130
1467486994336,4cyclictest167350irq/118-8000000.ethernet-tx007:10:290
1467486994315,6cyclictest15-21rcuc/008:40:090
1467489994229,8cyclictest0-21swapper/109:00:181
1467486994236,4cyclictest0-21swapper/007:30:130
1467486994230,8cyclictest0-21swapper/008:30:000
1467486994227,9cyclictest0-21swapper/011:30:290
1467491994128,8cyclictest0-21swapper/209:10:012
1467491994128,8cyclictest0-21swapper/209:10:012
1467489994131,6cyclictest1516305-21cron11:55:001
1467489994129,7cyclictest0-21swapper/108:25:301
1467489994124,10cyclictest0-21swapper/109:30:291
146748699415,4cyclictest14-21rcu_preempt12:30:000
1467486994134,5cyclictest1283-21cron10:35:000
1467486994133,6cyclictest1488186-21munin-plugin-st09:10:010
1467486994133,6cyclictest1488186-21munin-plugin-st09:10:010
1467486994133,5cyclictest0-21swapper/011:25:010
1467491994032,5cyclictest1501778-21grep10:25:292
1467489994029,7cyclictest0-21swapper/108:05:011
1467489994029,7cyclictest0-21swapper/108:05:011
1467489994027,9cyclictest0-21swapper/108:10:001
1467489994026,5cyclictest0-21swapper/110:30:291
146748699408,19cyclictest15-21rcuc/007:40:010
146748699408,19cyclictest15-21rcuc/007:40:010
1467486994033,4cyclictest167350irq/118-8000000.ethernet-tx011:01:460
146748699403,2cyclictest0-21swapper/007:45:000
1467486994032,4cyclictest167350irq/118-8000000.ethernet-tx011:40:280
1467486994031,6cyclictest0-21swapper/007:50:160
1467486994031,5cyclictest1505239-21grep10:45:300
1467486994031,3cyclictest0-21swapper/009:00:000
1467486994018,20cyclictest0-21swapper/008:45:200
1467491993930,5cyclictest1487259-21grep09:00:272
1467491993929,5cyclictest0-21swapper/211:20:282
1467489993930,5cyclictest0-21swapper/111:15:231
1467489993929,6cyclictest231ktimers/109:10:171
1467489993927,7cyclictest0-21swapper/109:50:291
1467489993925,9cyclictest0-21swapper/110:40:221
146748999391,29cyclictest0-21swapper/112:15:181
1467486993932,4cyclictest20850irq/208-8000000.ethernet09:20:010
1467486993926,10cyclictest0-21swapper/007:45:270
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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