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2026-07-09 - 04:04

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 Thu Jul 09, 2026 00:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1461514997972,5cyclictest0-21swapper/023:25:020
1461518995744,9cyclictest0-21swapper/219:15:012
1461516995645,6cyclictest167450irq/126-8000000.ethernet-tx120:25:001
1461518995541,10cyclictest1488213-21sh21:44:592
1461516995442,6cyclictest1502665-21latency_hist23:10:011
1461514995345,5cyclictest0-21swapper/020:25:010
1461516995134,9cyclictest0-21swapper/122:10:201
1461516994936,8cyclictest231ktimers/122:45:111
1461516994836,8cyclictest0-21swapper/121:09:591
1461516994825,13cyclictest1497400-21grep22:35:261
1461518994738,5cyclictest0-21swapper/219:15:292
1461516994634,7cyclictest0-21swapper/100:00:281
1461516994632,9cyclictest1467562-21grep19:40:281
1461516994631,9cyclictest231ktimers/123:40:151
1461516994534,6cyclictest1507758-21grep23:35:291
1461516994532,9cyclictest1485523-21grep21:25:271
1461514994538,4cyclictest20850irq/208-8000000.ethernet00:00:290
1461514994536,5cyclictest0-21swapper/000:15:000
1461514994536,5cyclictest0-21swapper/000:15:000
1461516994433,7cyclictest0-21swapper/120:35:271
1461516994432,7cyclictest1500910-21grep22:55:301
1461516994432,7cyclictest1500910-21grep22:55:301
1461516994431,8cyclictest231ktimers/122:50:111
1461516994428,7cyclictest0-21swapper/121:40:201
1461516994427,9cyclictest0-21swapper/123:50:291
1461514994430,9cyclictest0-21swapper/022:35:270
146151499441,5cyclictest1471055-21apt-get20:05:010
146151899432,35cyclictest1509703-21/usr/sbin/munin23:50:152
146151899431,11cyclictest30-21rcuc/219:50:012
146151899431,11cyclictest30-21rcuc/219:50:012
1461516994331,7cyclictest1479637-21grep20:50:301
1461516994330,8cyclictest0-21swapper/100:05:271
1461516994330,7cyclictest0-21swapper/121:30:301
146151699431,34cyclictest1486771-21df21:35:151
1461518994232,6cyclictest0-21swapper/223:35:022
1461516994236,4cyclictest231ktimers/122:25:111
1461516994230,5cyclictest1511077-21grep23:55:271
1461516994229,8cyclictest0-21swapper/123:30:281
1461516994227,10cyclictest0-21swapper/100:35:271
1461516994225,9cyclictest0-21swapper/123:15:211
1461514994234,5cyclictest1472826-21munin-plugin-st20:15:000
146151499421,2cyclictest0-21swapper/021:35:010
1461518994131,5cyclictest0-21swapper/220:25:282
1461518994127,10cyclictest0-21swapper/220:30:322
1461518994125,9cyclictest0-21swapper/222:45:272
1461516994131,7cyclictest0-21swapper/120:40:261
1461516994127,9cyclictest1469244-21grep19:50:271
1461516994117,16cyclictest0-21swapper/120:55:271
1461514994130,8cyclictest0-21swapper/020:35:280
1461514994126,10cyclictest0-21swapper/022:00:300
1461514994126,10cyclictest0-21swapper/022:00:290
146151499411,38cyclictest0-21swapper/000:25:130
1461518994031,5cyclictest1484663-21grep21:20:292
1461518994027,9cyclictest0-21swapper/223:15:302
1461516994031,5cyclictest14-21rcu_preempt23:05:001
1461516994029,6cyclictest0-21swapper/121:50:191
1461516994027,7cyclictest0-21swapper/121:00:281
1461514994033,4cyclictest167350irq/118-8000000.ethernet-tx021:55:240
1461514994032,4cyclictest167350irq/118-8000000.ethernet-tx021:25:150
1461514994030,5cyclictest0-21swapper/019:25:290
146151499401,3cyclictest0-21swapper/021:50:190
146151499401,11cyclictest0-21swapper/020:55:000
146151899397,28cyclictest1487184-21tr21:35:262
1461518993930,5cyclictest0-21swapper/200:20:302
1461518993929,6cyclictest1496683-21grep22:30:282
1461518993928,8cyclictest0-21swapper/222:10:292
1461518993927,8cyclictest0-21swapper/219:30:292
1461518993926,7cyclictest0-21swapper/219:40:282
1461518993926,10cyclictest0-21swapper/223:35:282
1461518993925,8cyclictest0-21swapper/223:40:302
1461516993930,5cyclictest0-21swapper/120:45:181
1461516993930,5cyclictest0-21swapper/120:45:171
1461516993929,7cyclictest1471905-21grep20:05:281
1461516993928,7cyclictest1472309-21sh20:10:201
1461516993927,7cyclictest1516202-21grep00:25:291
1461516993927,6cyclictest0-21swapper/119:30:291
1461516993924,10cyclictest0-21swapper/122:30:211
1461516993918,11cyclictest0-21swapper/119:35:261
1461514993929,6cyclictest0-21swapper/022:50:290
1461514993929,5cyclictest0-21swapper/019:10:010
1461514993920,9cyclictest0-21swapper/019:15:010
146151499391,6cyclictest1473354-21phc2sys20:15:260
146151499391,3cyclictest1468337-21mailstats19:45:260
146151499391,3cyclictest1468337-21mailstats19:45:260
146151499391,36cyclictest0-21swapper/023:39:590
146151499391,36cyclictest0-21swapper/023:25:080
1461518993828,6cyclictest1488949-21grep21:45:282
1461518993827,7cyclictest0-21swapper/220:10:282
146151899381,30cyclictest0-21swapper/200:35:272
146151699387,28cyclictest0-21swapper/121:25:001
146151699385,23cyclictest1462552-21latency_hist19:15:021
146151699383,5cyclictest1471057-21munin-run20:05:011
1461516993827,5cyclictest0-21swapper/122:00:201
1461516993827,5cyclictest0-21swapper/122:00:201
1461516993823,8cyclictest0-21swapper/121:10:181
146151699381,31cyclictest1467877-21/usr/sbin/munin19:45:191
146151699381,31cyclictest1467877-21/usr/sbin/munin19:45:191
1461514993830,4cyclictest167350irq/118-8000000.ethernet-tx019:15:030
146151499382,5cyclictest1480889-21grep21:00:210
1461514993823,10cyclictest0-21swapper/021:10:010
1461514993821,14cyclictest131ktimers/021:10:190
146151499381,7cyclictest0-21swapper/022:30:010
146151499381,35cyclictest1500423-21lsblk22:55:190
146151499381,35cyclictest1500423-21lsblk22:55:190
146151499381,35cyclictest0-21swapper/023:45:130
146151499381,35cyclictest0-21swapper/022:10:110
146151499381,32cyclictest1486428-21unixbench_multi21:30:290
1461518993729,4cyclictest167550irq/134-8000000.ethernet-tx221:25:232
1461518993725,8cyclictest0-21swapper/221:00:282
1461518993711,17cyclictest1479873-21/usr/sbin/munin20:55:182
146151699377,20cyclictest1515331-21tail00:20:291
146151699376,21cyclictest1476251-21grep20:30:321
146151699374,23cyclictest1475361-21sed20:25:271
1461516993727,7cyclictest231ktimers/123:45:151
1461516993727,4cyclictest0-21swapper/120:15:191
1461516993725,8cyclictest0-21swapper/123:25:261
1461516993725,8cyclictest0-21swapper/122:05:181
1461516993725,7cyclictest0-21swapper/123:20:271
1461514993723,10cyclictest0-21swapper/019:45:010
1461514993717,18cyclictest0-21swapper/019:50:190
146151499371,6cyclictest0-21swapper/020:50:010
146151499371,6cyclictest0-21swapper/020:50:010
146151499371,11cyclictest1503097-21if_eth123:10:210
1461518993628,4cyclictest0-21swapper/220:00:302
1461518993628,4cyclictest0-21swapper/200:05:282
1461518993627,5cyclictest0-21swapper/223:10:172
1461518993625,8cyclictest0-21swapper/220:50:262
1461518993625,7cyclictest1473549-21grep20:15:282
146151699363,9cyclictest22-21rcuc/119:25:011
1461516993626,7cyclictest231ktimers/100:10:121
1461516993626,7cyclictest231ktimers/100:10:111
1461516993625,7cyclictest1261-21rs:main1
1461516993625,5cyclictest0-21swapper/100:30:291
1461516993624,8cyclictest1470156-21grep19:55:271
1461516993624,7cyclictest1465048-21unixbench_multi19:25:291
1461516993624,6cyclictest0-21swapper/121:15:201
146151499364,2cyclictest0-21swapper/019:40:010
1461514993629,4cyclictest20850irq/208-8000000.ethernet22:30:240
1461514993625,8cyclictest0-21swapper/021:45:290
146151499362,3cyclictest0-21swapper/022:45:000
146151499361,4cyclictest274-21systemd-journal21:19:590
146151499361,3cyclictest0-21swapper/023:50:110
146151499361,33cyclictest0-21swapper/000:20:180
1461518993528,4cyclictest167550irq/134-8000000.ethernet-tx200:30:232
1461518993526,6cyclictest0-21swapper/221:55:172
1461518993526,5cyclictest0-21swapper/200:15:272
1461518993523,6cyclictest1464234-21grep19:20:292
146151899352,31cyclictest0-21swapper/223:20:262
146151899352,2cyclictest0-21swapper/222:15:282
1461518993521,10cyclictest311ktimers/223:25:102
1461514993529,4cyclictest20850irq/208-8000000.ethernet22:15:150
1461514993529,4cyclictest20850irq/208-8000000.ethernet20:30:190
1461514993527,4cyclictest0-21swapper/019:20:190
1461514993526,6cyclictest0-21swapper/000:35:210
1461514993525,6cyclictest0-21swapper/022:20:150
1461514993522,8cyclictest0-21swapper/023:05:300
146151499351,4cyclictest0-21swapper/022:50:010
146151499351,2cyclictest0-21swapper/022:10:000
1461518993427,4cyclictest167550irq/134-8000000.ethernet-tx219:50:282
1461518993422,9cyclictest0-21swapper/200:00:282
1461518993422,8cyclictest0-21swapper/223:45:262
1461518993422,8cyclictest0-21swapper/219:35:252
146151899341,27cyclictest30-21rcuc/221:15:292
146151699347,5cyclictest1494116-21apt-get22:20:021
1461516993423,7cyclictest0-21swapper/122:20:281
1461516993421,8cyclictest1463327-21grep19:15:281
1461514993428,4cyclictest20850irq/208-8000000.ethernet23:15:200
1461514993428,3cyclictest1480301-21tail20:55:260
1461514993426,5cyclictest131ktimers/021:40:280
1461514993424,7cyclictest0-21swapper/020:40:260
1461514993423,8cyclictest1517049-21unixbench_singl00:30:290
1461514993422,7cyclictest0-21swapper/019:30:290
1461514993421,9cyclictest0-21swapper/019:55:240
1461514993421,10cyclictest0-21swapper/023:00:270
146151499341,30cyclictest131ktimers/000:05:260
1461518993325,4cyclictest0-21swapper/222:20:172
1461518993322,8cyclictest0-21swapper/220:35:282
1461518993314,4cyclictest167550irq/134-8000000.ethernet-tx222:05:212
146151899331,30cyclictest0-21swapper/219:55:232
1461516993320,8cyclictest0-21swapper/123:10:211
146151699331,2cyclictest0-21swapper/122:00:001
1461514993327,4cyclictest20850irq/208-8000000.ethernet21:20:230
1461514993322,7cyclictest0-21swapper/023:30:280
1461514993319,11cyclictest1514299-21/usr/sbin/munin00:15:240
1461518993225,4cyclictest14-21rcu_preempt22:55:282
1461518993225,4cyclictest14-21rcu_preempt22:55:282
1461518993221,7cyclictest0-21swapper/223:05:262
1461518993221,7cyclictest0-21swapper/220:05:292
1461518993221,5cyclictest0-21swapper/221:50:202
1461518993220,8cyclictest0-21swapper/222:40:212
146151899321,28cyclictest1482187-21sshd21:06:062
146151699326,18cyclictest1498375-21head22:40:281
1461514993225,4cyclictest167350irq/118-8000000.ethernet-tx020:05:050
1461514993224,6cyclictest131ktimers/023:55:260
146151499321,28cyclictest1508086-21df23:40:170
1461518993125,4cyclictest167550irq/134-8000000.ethernet-tx222:00:302
1461518993125,4cyclictest167550irq/134-8000000.ethernet-tx222:00:292
1461518993122,5cyclictest0-21swapper/220:45:302
1461518993122,5cyclictest0-21swapper/220:45:292
1461518993114,4cyclictest167550irq/134-8000000.ethernet-tx219:25:202
1461516993122,4cyclictest0-21swapper/121:45:161
146151499311,28cyclictest1474975-21ssh20:25:200
1461518993019,8cyclictest0-21swapper/200:15:012
1461518993019,8cyclictest0-21swapper/200:15:012
1461518993019,6cyclictest0-21swapper/220:40:272
146151899301,27cyclictest0-21swapper/221:30:182
1461518992923,4cyclictest0-21swapper/221:14:532
1461518992922,5cyclictest311ktimers/222:25:182
1461518992917,5cyclictest0-21swapper/220:25:012
1461518992914,9cyclictest311ktimers/223:00:122
1461518992820,4cyclictest0-21swapper/222:35:262
1461518992819,5cyclictest0-21swapper/219:10:012
1461518992816,8cyclictest0-21swapper/222:50:302
1461518992718,6cyclictest0-21swapper/200:25:262
1461518992711,13cyclictest167550irq/134-8000000.ethernet-tx223:56:182
1461516992618,5cyclictest0-21swapper/119:10:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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