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2025-12-30 - 13:00

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 all highest latencies:
System rackeslot6s.osadl.org (updated Tue Dec 30, 2025 00:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
288958997525,43cyclictest343661-21grep00:25:300
288958997525,43cyclictest343661-21grep00:25:300
288958997110,22cyclictest0-21swapper/020:20:010
28895899707,29cyclictest0-21swapper/022:30:020
288958996712,47cyclictest0-21swapper/022:40:010
288958996435,2cyclictest337916-21apt-get23:55:140
288958996427,34cyclictest342461-21/usr/sbin/munin00:20:230
288958996320,37cyclictest339567-21latency_hist00:05:010
28896399623,20cyclictest30-21rcuc/223:10:012
288958996224,9cyclictest291385-21tr19:20:250
28896399616,19cyclictest30-21rcuc/219:45:012
288958996031,3cyclictest335049-21/usr/sbin/munin23:35:300
288958996013,19cyclictest0-21swapper/021:05:010
288958995941,13cyclictest0-21swapper/021:15:130
288958995931,14cyclictest0-21swapper/023:30:150
288963995850,5cyclictest0-21swapper/200:10:012
288958995831,13cyclictest0-21swapper/020:45:150
288958995817,38cyclictest299961-21ptp4l20:10:280
28895899581,4cyclictest0-21swapper/019:45:110
28896399575,26cyclictest30-21rcuc/222:05:022
28896399575,26cyclictest30-21rcuc/222:05:012
288961995750,4cyclictest231ktimers/123:40:011
288958995735,14cyclictest0-21swapper/019:40:140
288958995729,3cyclictest319320-21/usr/sbin/munin22:05:200
28896199569,8cyclictest320728-21apt-get22:15:021
288958995610,42cyclictest309072-21fschecks_time21:05:220
288961995510,19cyclictest22-21rcuc/123:15:031
288958995540,11cyclictest328235-21/usr/sbin/munin22:55:280
288958995538,12cyclictest0-21swapper/021:45:130
288958995515,38cyclictest0-21swapper/020:25:250
288958995437,12cyclictest20850irq/208-8000000.ethernet19:15:130
288958995436,13cyclictest0-21swapper/021:35:150
288958995431,11cyclictest0-21swapper/023:00:140
288958995425,27cyclictest307926-21latency_hist21:00:010
288958995417,32cyclictest0-21swapper/022:20:010
288958995411,8cyclictest318106-21apt-get22:00:010
288963995339,9cyclictest0-21swapper/221:15:002
288958995335,12cyclictest0-21swapper/021:25:160
288958995335,12cyclictest0-21swapper/021:25:150
288958995325,3cyclictest292008-21df19:25:180
288958995321,27cyclictest330064-21unixbench_singl23:05:280
288958995238,10cyclictest0-21swapper/022:50:140
288958995236,9cyclictest0-21swapper/020:05:150
288958995236,9cyclictest0-21swapper/020:05:150
288958995233,15cyclictest0-21swapper/022:00:150
288958995233,15cyclictest0-21swapper/022:00:150
288958995233,13cyclictest0-21swapper/000:15:140
288958995222,27cyclictest335451-21df23:40:170
288958995211,39cyclictest0-21swapper/022:15:000
288958995139,9cyclictest332929-21/usr/sbin/munin23:25:170
288958995134,13cyclictest0-21swapper/020:20:140
288958995134,13cyclictest0-21swapper/020:20:140
288958995115,33cyclictest292985-21sh19:30:220
288958995037,11cyclictest306607-21/usr/sbin/munin20:50:240
288958995032,13cyclictest0-21swapper/020:00:140
288958995023,3cyclictest325327-21diskstats22:40:190
288958995015,8cyclictest345450-21latency_hist00:40:010
288963994942,4cyclictest167550irq/134-8000000.ethernet-tx221:05:302
28896199495,14cyclictest0-21swapper/120:45:011
288958994943,3cyclictest303849-21/usr/sbin/munin20:35:210
288958994943,3cyclictest303849-21/usr/sbin/munin20:35:200
288958994939,8cyclictest332630-21sshd23:20:310
288958994937,8cyclictest303364-21/usr/sbin/munin20:30:260
288958994933,13cyclictest339850-21/usr/sbin/munin00:05:220
288958994931,15cyclictest0-21swapper/019:10:150
288958994931,13cyclictest0-21swapper/022:25:160
288958994917,3cyclictest311592-21tune2fs21:20:190
288958994912,31cyclictest0-21swapper/023:15:010
288963994839,5cyclictest336874-21munin-plugin-st23:50:002
288961994828,14cyclictest231ktimers/119:35:141
288958994839,6cyclictest337391-21/usr/sbin/munin23:50:260
288958994838,7cyclictest304798-21dropbear20:40:220
288958994837,8cyclictest344001-21/usr/sbin/munin00:30:210
28895899483,6cyclictest315662-21rm21:45:010
288958994832,12cyclictest0-21swapper/019:35:160
288958994821,3cyclictest310256-21/usr/sbin/munin21:10:270
288958994817,28cyclictest0-21swapper/022:25:020
28896399472,15cyclictest30-21rcuc/200:05:022
288961994738,5cyclictest323359-21munin-run22:30:001
288961994730,12cyclictest0-21swapper/122:00:011
288958994731,12cyclictest0-21swapper/000:10:150
288958994713,29cyclictest296644-21cut19:50:270
288958994713,29cyclictest296644-21cut19:50:270
288963994636,5cyclictest344581-21munin-plugin-st00:34:592
28896199461,4cyclictest0-21swapper/119:20:011
288958994637,7cyclictest297624-21sshd19:55:310
288958994634,9cyclictest316977-21/usr/sbin/munin21:50:250
288958994633,10cyclictest313664-21/usr/sbin/munin21:30:290
288958994618,26cyclictest336285-21df23:45:150
288958994527,13cyclictest331600-21/usr/sbin/munin23:15:280
28895899451,5cyclictest0-21swapper/019:10:010
28895899451,5cyclictest0-21swapper/019:10:010
288963994436,5cyclictest30-21rcuc/220:40:012
288963994436,5cyclictest30-21rcuc/220:40:012
288963994431,8cyclictest338558-21munin-plugin-st00:00:012
288961994434,7cyclictest321347-21phc2sys22:15:241
288961994424,14cyclictest231ktimers/120:45:161
288958994433,8cyclictest326099-21apt-get22:45:120
288961994332,6cyclictest0-21swapper/122:05:321
288963994233,5cyclictest0-21swapper/223:35:002
288963994230,7cyclictest317159-21grep21:50:292
288963994230,7cyclictest0-21swapper/220:55:302
28896199428,4cyclictest316271-21sendmail_mailtr21:45:261
288961994229,8cyclictest0-21swapper/100:20:301
288963994133,4cyclictest0-21swapper/221:55:282
288963994125,10cyclictest0-21swapper/219:50:262
288963994125,10cyclictest0-21swapper/219:50:262
288963994122,9cyclictest0-21swapper/223:00:302
288961994132,6cyclictest314555-21grep21:35:301
288961994126,10cyclictest0-21swapper/120:55:271
288961994121,11cyclictest0-21swapper/121:45:011
28896199411,9cyclictest0-21swapper/122:25:011
288963994032,5cyclictest0-21swapper/200:40:002
28896399402,9cyclictest0-21swapper/221:45:272
288963994026,11cyclictest0-21swapper/221:40:282
288961994035,2cyclictest0-21swapper/100:00:011
288961994028,8cyclictest0-21swapper/120:25:301
288961994022,13cyclictest231ktimers/119:30:131
288961993925,10cyclictest0-21swapper/100:00:291
288963993829,5cyclictest0-21swapper/223:29:592
288963993827,7cyclictest0-21swapper/221:30:282
28896399381,5cyclictest30-21rcuc/220:25:292
288961993831,5cyclictest0-21swapper/123:20:201
288961993828,6cyclictest0-21swapper/121:50:261
288963993729,4cyclictest167550irq/134-8000000.ethernet-tx222:50:242
288963993729,4cyclictest0-21swapper/220:35:002
288963993728,5cyclictest0-21swapper/221:15:292
288961993727,6cyclictest0-21swapper/121:25:311
288961993727,6cyclictest0-21swapper/121:25:311
288961993727,5cyclictest0-21swapper/120:50:271
288961993722,10cyclictest0-21swapper/120:30:201
288961993718,14cyclictest231ktimers/123:25:091
288963993629,4cyclictest167550irq/134-8000000.ethernet-tx200:25:262
288963993629,4cyclictest167550irq/134-8000000.ethernet-tx200:25:262
288963993627,4cyclictest167550irq/134-8000000.ethernet-tx221:35:242
288963993623,8cyclictest0-21swapper/223:40:212
288963993622,9cyclictest0-21swapper/200:10:012
288963993622,8cyclictest0-21swapper/221:20:282
288963993621,8cyclictest0-21swapper/219:25:302
28896399361,2cyclictest0-21swapper/223:35:292
28896399361,28cyclictest291340-21if_eth019:20:242
288961993629,4cyclictest167450irq/126-8000000.ethernet-tx121:20:221
288961993623,9cyclictest1660-21snmpd21:05:181
288961993613,16cyclictest22-21rcuc/100:15:021
288963993528,4cyclictest167550irq/134-8000000.ethernet-tx220:45:262
288963993527,5cyclictest295823-21mailstats19:45:262
288963993526,6cyclictest1660-21snmpd21:25:222
288963993526,6cyclictest1660-21snmpd21:25:222
288963993525,5cyclictest0-21swapper/222:15:012
28896399351,27cyclictest0-21swapper/220:50:282
28896199356,4cyclictest0-21swapper/123:05:261
288961993527,4cyclictest334173-21grep23:30:291
288961993521,7cyclictest0-21swapper/122:40:291
288961993520,10cyclictest0-21swapper/123:55:011
288963993429,2cyclictest337504-21ptp4l-jitter23:50:292
288963993427,4cyclictest167550irq/134-8000000.ethernet-tx222:30:232
288963993424,5cyclictest0-21swapper/222:55:222
288963993423,7cyclictest341823-21grep00:15:302
288961993425,6cyclictest0-21swapper/123:45:261
288961993422,7cyclictest0-21swapper/119:10:291
288961993421,9cyclictest0-21swapper/119:30:011
288961993413,15cyclictest231ktimers/121:00:151
28896199341,27cyclictest0-21swapper/100:35:281
28896199341,26cyclictest301249-21/usr/sbin/munin20:20:271
28896199341,26cyclictest301249-21/usr/sbin/munin20:20:261
28896399331,30cyclictest321503-21mailstats22:15:262
28896399331,2cyclictest0-21swapper/222:20:312
288961993325,5cyclictest328368-21unixbench_singl22:55:291
288961993320,6cyclictest0-21swapper/120:10:281
288961993318,12cyclictest231ktimers/122:50:121
288961993317,10cyclictest22-21rcuc/119:40:271
288963993228,2cyclictest0-21swapper/220:10:292
288963993225,4cyclictest0-21swapper/223:20:232
288963993223,5cyclictest330056-21grep23:05:292
288963993223,5cyclictest0-21swapper/222:40:012
28896399321,26cyclictest0-21swapper/220:05:182
28896399321,26cyclictest0-21swapper/220:05:172
28896399321,25cyclictest0-21swapper/219:10:242
288961993224,4cyclictest0-21swapper/120:35:221
288961993224,4cyclictest0-21swapper/120:35:221
288961993224,4cyclictest0-21swapper/119:20:301
288961993222,7cyclictest0-21swapper/121:20:011
28896199321,25cyclictest0-21swapper/122:35:291
288963993124,5cyclictest0-21swapper/220:15:172
288963993122,5cyclictest0-21swapper/219:30:262
28896399311,24cyclictest0-21swapper/219:15:022
288961993123,5cyclictest0-21swapper/120:20:001
288961993122,6cyclictest0-21swapper/120:05:291
288961993122,6cyclictest0-21swapper/120:05:291
28896199311,25cyclictest0-21swapper/122:00:261
28896199311,25cyclictest0-21swapper/122:00:261
28896199311,24cyclictest0-21swapper/100:15:141
288963993021,5cyclictest0-21swapper/223:15:212
288963993021,4cyclictest0-21swapper/220:40:292
288963993020,7cyclictest1660-21snmpd20:00:042
288963993018,7cyclictest0-21swapper/221:00:212
288961993012,14cyclictest231ktimers/119:50:111
288961993012,14cyclictest231ktimers/119:50:111
288963992918,7cyclictest0-21swapper/222:40:262
288961992922,5cyclictest313155-21/usr/sbin/munin21:30:191
288961992921,4cyclictest0-21swapper/120:00:281
288961992920,5cyclictest0-21swapper/100:25:281
288961992920,5cyclictest0-21swapper/100:25:281
288961992919,5cyclictest0-21swapper/123:00:291
288961992912,12cyclictest231ktimers/119:55:131
288963992815,9cyclictest0-21swapper/220:20:272
288963992815,9cyclictest0-21swapper/220:20:272
288961992821,5cyclictest231ktimers/122:30:261
288961992819,7cyclictest1660-21snmpd00:32:521
288961992819,6cyclictest295898-21grep19:45:271
288961992819,6cyclictest0-21swapper/122:45:291
288963992721,3cyclictest342848-21head00:20:292
28896399271,24cyclictest0-21swapper/222:06:312
288961992719,6cyclictest231ktimers/100:05:281
288963992615,8cyclictest0-21swapper/219:55:262
288961992620,4cyclictest14-21rcu_preempt23:35:271
288963992515,6cyclictest323261-21grep22:25:292
288963992514,8cyclictest1660-21snmpd19:40:002
288961992519,3cyclictest0-21swapper/123:10:291
288963992415,6cyclictest1660-21snmpd22:45:382
288961992415,5cyclictest0-21swapper/121:10:111
288963991914,3cyclictest288921-21latency_hist19:10:012
288963991914,3cyclictest288921-21latency_hist19:10:012
28896199191,10cyclictest22-21rcuc/119:10:011
28896199191,10cyclictest22-21rcuc/119:10:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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