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2025-12-06 - 15:16

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 Dec 06, 2025 00:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1732854998848,16cyclictest38-21rcuc/319:15:013
1732845998040,35cyclictest1768170-21munin-plugin-st22:35:010
173284599773,64cyclictest1765178-21fschecks_time22:15:230
173284599762,15cyclictest0-21swapper/020:50:000
1732848996813,15cyclictest1735169-21/usr/sbin/munin19:20:191
173284599673,23cyclictest0-21swapper/021:35:010
1732845996724,4cyclictest0-21swapper/022:50:210
173284599663,19cyclictest0-21swapper/021:50:010
1732845996625,7cyclictest0-21swapper/019:25:270
1732845996336,23cyclictest1748561-21sendmail20:39:590
1732845996230,28cyclictest0-21swapper/023:10:270
173284599621,49cyclictest0-21swapper/020:55:130
173284599621,49cyclictest0-21swapper/020:55:130
173285099601,27cyclictest0-21swapper/220:45:012
1732848995917,15cyclictest0-21swapper/100:30:021
1732845995930,6cyclictest0-21swapper/020:15:260
1732845995928,8cyclictest1772384-21grep22:55:300
1732845995823,4cyclictest0-21swapper/000:25:230
1732850995736,9cyclictest0-21swapper/221:30:012
1732850995736,9cyclictest0-21swapper/221:30:012
173284599572,10cyclictest1733646-21apt-get19:15:010
1732845995627,5cyclictest0-21swapper/020:00:290
173285099530,29cyclictest1764799-21apt-key22:15:012
1732850995243,5cyclictest1735810-21apt19:25:002
173284899525,16cyclictest22-21rcuc/123:35:011
173284899522,6cyclictest0-21swapper/120:45:011
173285099501,23cyclictest0-21swapper/223:50:012
1732848995041,5cyclictest1787869-21munin-plugin-st00:30:001
1732848995010,9cyclictest0-21swapper/119:20:001
1732845995033,10cyclictest0-21swapper/022:15:010
1732850994937,8cyclictest0-21swapper/200:10:002
1732850994821,16cyclictest30-21rcuc/220:30:022
1732848994812,7cyclictest0-21swapper/119:40:011
173284899481,10cyclictest0-21swapper/100:00:011
1732845994838,6cyclictest0-21swapper/019:40:120
1732845994838,6cyclictest0-21swapper/019:40:120
1732850994740,4cyclictest1738338-21munin-plugin-st19:39:592
1732850994736,6cyclictest1737492-21munin-plugin-st19:35:012
1732848994737,7cyclictest1758613-21grep21:35:291
1732848994721,15cyclictest231ktimers/120:45:121
1732845994728,15cyclictest131ktimers/020:25:180
1732845994728,15cyclictest131ktimers/020:25:180
173285099468,22cyclictest1770873-21rm22:50:022
173285099462,26cyclictest0-21swapper/219:10:022
173285099462,26cyclictest0-21swapper/219:10:012
173285099461,33cyclictest0-21swapper/221:25:012
1732848994634,8cyclictest1741705-21cron20:00:011
1732848994634,8cyclictest1741705-21cron20:00:001
173284899461,14cyclictest0-21swapper/122:45:011
1732845994638,5cyclictest0-21swapper/019:20:000
173284599461,39cyclictest1761768-21if_eth121:55:220
173284599461,39cyclictest1761768-21if_eth121:55:220
173284899458,8cyclictest0-21swapper/122:50:021
1732848994532,9cyclictest0-21swapper/122:15:321
1732845994533,6cyclictest0-21swapper/023:45:010
173285099441,29cyclictest0-21swapper/200:35:022
173284899442,24cyclictest0-21swapper/100:20:021
1732845994435,5cyclictest0-21swapper/021:50:110
1732845994427,13cyclictest131ktimers/021:20:150
1732845994418,5cyclictest1384335-1kworker/0:0H+mmc_complete19:25:000
1732850994331,7cyclictest1776716-21grep23:20:312
1732848994315,19cyclictest1750454-21/usr/sbin/munin20:50:201
1732845994335,4cyclictest0-21swapper/023:09:590
1732845994333,6cyclictest1737435-21grep19:30:290
1732850994234,4cyclictest1775099-21munin-plugin-st23:15:002
1732850994233,6cyclictest0-21swapper/219:20:002
1732850994232,6cyclictest0-21swapper/222:55:302
1732850994231,7cyclictest0-21swapper/219:50:292
1732850994226,11cyclictest0-21swapper/223:35:202
1732850994213,14cyclictest1773522-21cat23:05:022
173285099421,20cyclictest0-21swapper/221:45:002
173284599421,35cyclictest0-21swapper/019:45:150
173284599421,2cyclictest0-21swapper/000:00:010
1732850994131,5cyclictest0-21swapper/220:35:282
1732848994133,5cyclictest168350irq/126-8000000.ethernet-tx123:45:141
1732848994132,5cyclictest1766390-21unixbench_multi22:20:321
1732848994131,6cyclictest231ktimers/123:40:121
1732848994131,6cyclictest1774257-21apt23:10:001
1732848994131,5cyclictest0-21swapper/120:35:001
1732848994130,7cyclictest0-21swapper/120:00:301
1732848994130,5cyclictest231ktimers/119:45:221
1732848994129,7cyclictest0-21swapper/100:00:301
1732848994126,8cyclictest0-21swapper/122:10:001
1732850994030,6cyclictest1782665-21grep23:55:312
1732850994029,5cyclictest0-21swapper/222:50:302
1732850994025,9cyclictest0-21swapper/222:40:292
1732850994025,10cyclictest0-21swapper/220:45:232
1732848994029,5cyclictest0-21swapper/123:50:181
1732848994027,9cyclictest0-21swapper/123:20:311
1732848994024,8cyclictest0-21swapper/100:10:211
1732848994022,9cyclictest0-21swapper/100:35:181
1732845994032,4cyclictest21250irq/208-8000000.ethernet22:45:000
1732845994026,10cyclictest0-21swapper/020:50:300
173284599402,3cyclictest1776317-21dropbear23:20:230
1732850993930,5cyclictest0-21swapper/219:40:282
1732850993930,5cyclictest0-21swapper/219:40:282
173285099392,25cyclictest0-21swapper/222:40:002
173284899395,26cyclictest0-21swapper/122:55:001
1732848993933,3cyclictest0-21swapper/120:20:011
1732848993932,5cyclictest231ktimers/120:35:251
1732848993932,4cyclictest168350irq/126-8000000.ethernet-tx121:25:001
1732848993927,5cyclictest168350irq/126-8000000.ethernet-tx121:25:291
1732848993927,5cyclictest168350irq/126-8000000.ethernet-tx121:25:291
1732848993924,9cyclictest1287-21cron20:10:001
1732845993927,8cyclictest0-21swapper/023:15:280
1732850993828,5cyclictest0-21swapper/221:05:292
1732850993828,5cyclictest0-21swapper/220:55:002
1732850993828,4cyclictest0-21swapper/221:00:292
1732850993827,7cyclictest0-21swapper/221:35:292
1732850993827,6cyclictest0-21swapper/223:50:272
1732850993825,9cyclictest0-21swapper/220:55:222
1732850993825,9cyclictest0-21swapper/220:55:212
1732850993811,22cyclictest2-21kthreadd20:19:232
173284899389,24cyclictest0-21swapper/122:55:231
1732848993830,5cyclictest0-21swapper/120:10:211
1732848993830,5cyclictest0-21swapper/120:10:211
1732848993827,6cyclictest1764630-21grep22:10:301
173284899381,25cyclictest0-21swapper/121:05:011
1732848993812,14cyclictest0-21swapper/121:10:121
1732848993812,14cyclictest0-21swapper/121:10:121
173284599383,4cyclictest1773429-21apt-config23:05:010
1732850993727,7cyclictest311ktimers/221:45:112
1732850993725,5cyclictest0-21swapper/219:55:212
1732850993725,5cyclictest0-21swapper/219:55:212
1732850993719,10cyclictest0-21swapper/200:10:262
1732850993714,12cyclictest0-21swapper/223:30:112
173284899373,17cyclictest0-21swapper/119:35:021
1732848993730,4cyclictest168350irq/126-8000000.ethernet-tx123:20:011
1732845993728,5cyclictest1781859-21grep23:50:270
1732845993728,5cyclictest0-21swapper/000:20:270
1732845993725,9cyclictest1779212-21grep23:35:290
1732845993725,8cyclictest0-21swapper/022:00:200
1732845993725,7cyclictest0-21swapper/021:10:290
1732845993725,7cyclictest0-21swapper/021:10:290
1732845993723,9cyclictest0-21swapper/000:30:310
173284599371,8cyclictest1743784-21sh20:10:250
173284599371,8cyclictest1743784-21sh20:10:250
173284599371,31cyclictest1763219-21/usr/sbin/munin22:05:120
173285099368,2cyclictest0-21swapper/200:15:202
1732850993627,5cyclictest0-21swapper/223:10:002
1732850993624,6cyclictest311ktimers/219:30:012
1732850993620,8cyclictest0-21swapper/220:25:312
1732850993620,8cyclictest0-21swapper/220:25:312
173285099361,29cyclictest32-21ksoftirqd/222:15:222
1732848993627,6cyclictest231ktimers/121:50:221
1732848993627,5cyclictest1757765-21grep21:30:291
1732848993624,7cyclictest0-21swapper/121:05:231
1732848993621,10cyclictest24-21ksoftirqd/119:40:191
1732848993621,10cyclictest24-21ksoftirqd/119:40:181
1732845993626,5cyclictest0-21swapper/020:40:290
1732845993624,8cyclictest0-21swapper/000:00:290
173284599361,33cyclictest0-21swapper/022:40:000
1732850993526,5cyclictest0-21swapper/223:25:222
1732850993520,10cyclictest0-21swapper/221:30:292
1732848993529,4cyclictest231ktimers/122:25:281
1732848993529,4cyclictest14-21rcu_preempt19:50:191
1732848993527,5cyclictest231ktimers/121:45:021
173284899352,27cyclictest1774457-21/usr/sbin/munin23:10:161
1732848993518,8cyclictest0-21swapper/123:40:011
173284899351,4cyclictest0-21swapper/120:25:011
173284899351,28cyclictest24-21ksoftirqd/121:55:211
173284899351,28cyclictest24-21ksoftirqd/121:55:201
1732845993528,4cyclictest21050irq/252-8000000.ethernet23:25:160
1732845993526,6cyclictest1752692-21grep21:00:300
1732845993526,4cyclictest1784411-21grep00:05:290
1732845993524,8cyclictest1789551-21munin-plugin-st00:40:000
1732845993523,6cyclictest0-21swapper/022:50:020
1732845993521,9cyclictest0-21swapper/021:25:220
1732845993521,9cyclictest0-21swapper/021:25:220
173284599351,28cyclictest0-21swapper/019:40:010
173285099347,16cyclictest0-21swapper/220:10:172
173285099347,16cyclictest0-21swapper/220:10:162
1732850993427,5cyclictest311ktimers/223:15:292
1732850993425,5cyclictest0-21swapper/221:55:202
1732850993425,5cyclictest0-21swapper/221:55:202
1732848993427,5cyclictest231ktimers/123:00:251
173284599341,8cyclictest1759357-21grep21:40:260
173284599341,31cyclictest0-21swapper/020:20:180
173284599341,21cyclictest1749916-1kworker/0:2H+kblockd22:30:010
1732850993327,4cyclictest311ktimers/221:50:172
1732850993327,4cyclictest311ktimers/200:30:002
1732850993326,4cyclictest311ktimers/220:05:272
1732850993325,4cyclictest0-21swapper/221:10:212
1732850993325,4cyclictest0-21swapper/221:10:212
1732850993324,4cyclictest311ktimers/220:20:232
1732850993320,8cyclictest311ktimers/221:15:172
1732850993320,10cyclictest1765850-21munin-node22:20:152
173285099331,3cyclictest0-21swapper/223:40:012
1732850993312,14cyclictest168450irq/134-8000000.ethernet-tx200:20:162
1732848993327,4cyclictest231ktimers/100:10:011
1732848993324,6cyclictest231ktimers/120:59:401
1732848993324,6cyclictest231ktimers/120:59:401
173284899331,26cyclictest0-21swapper/122:04:591
173284899331,26cyclictest0-21swapper/121:15:301
173284899330,26cyclictest1733008-21/usr/sbin/munin19:10:191
1732845993327,4cyclictest21250irq/208-8000000.ethernet21:05:300
1732845993327,4cyclictest21250irq/208-8000000.ethernet00:10:160
173284599332,4cyclictest1754720-21cpu21:15:180
1732845993318,10cyclictest0-21swapper/023:45:210
173284599331,2cyclictest0-21swapper/022:25:010
1732850993226,4cyclictest311ktimers/222:30:162
1732850993225,5cyclictest311ktimers/200:40:002
1732850993219,7cyclictest1762379-21/usr/sbin/munin22:00:162
1732850993214,11cyclictest0-21swapper/200:05:022
1732848993225,5cyclictest1787033-21munin-plugin-st00:25:001
1732848993222,5cyclictest0-21swapper/122:35:221
1732848993218,8cyclictest231ktimers/119:25:111
1732845993228,2cyclictest0-21swapper/000:15:120
173284599322,5cyclictest1758358-21memory21:35:250
1732845993225,3cyclictest1743574-21latency_hist20:10:000
1732845993218,8cyclictest0-21swapper/023:35:020
173284599321,3cyclictest0-21swapper/020:00:010
173284599321,3cyclictest0-21swapper/020:00:000
173284599321,2cyclictest0-21swapper/019:55:010
1732850993123,5cyclictest311ktimers/222:05:272
1732850993118,8cyclictest0-21swapper/219:15:012
173285099311,25cyclictest32-21ksoftirqd/222:25:262
1732848993123,5cyclictest231ktimers/123:25:261
1732848993119,7cyclictest231ktimers/120:25:241
1732848993119,7cyclictest231ktimers/120:25:241
1732845993125,4cyclictest21250irq/208-8000000.ethernet20:30:310
1732845993019,7cyclictest1732938-21ls19:10:020
1732845993019,7cyclictest1732938-21ls19:10:020
1732850992924,3cyclictest311ktimers/219:45:282
1732848992923,4cyclictest231ktimers/121:50:011
1732850992821,5cyclictest311ktimers/220:00:252
1732848992821,5cyclictest0-21swapper/122:30:131
173284899281,3cyclictest0-21swapper/119:10:011
173284899281,3cyclictest0-21swapper/119:10:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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