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2025-11-30 - 00:57

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, slot #4

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.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack0slot4s.osadl.org (updated Sat Nov 29, 2025 00:46:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12574152373352,14sleep140-21swapper/1419:08:316
12574982366326,14sleep150-21swapper/1519:09:367
12573162364356,5sleep130-21swapper/1319:07:085
12572802362321,14sleep120-21swapper/1219:06:354
12574112359340,13sleep100-21swapper/1019:08:272
12573092353332,14sleep60-21swapper/619:07:0212
12572322351332,12sleep80-21swapper/819:05:5914
12574692350331,13sleep110-21swapper/1119:09:153
12574502350331,12sleep90-21swapper/919:08:5715
12574412350330,13sleep00-21swapper/019:08:480
12540692350329,14sleep50-21swapper/519:05:0911
12574772348329,12sleep20-21swapper/219:09:228
12572102348328,13sleep30-21swapper/319:05:389
12574652347325,14sleep70-21swapper/719:09:1213
12575042346326,13sleep40-21swapper/419:09:4010
12574002346326,13sleep10-21swapper/119:08:181
1257926993636,0cyclictest0-21swapper/200:20:218
1257941993535,0cyclictest0-21swapper/721:00:2313
1257941993534,1cyclictest1504818-21kworker/u32:2+events_unbound00:25:1913
1257936993510,25cyclictest0-21swapper/523:14:0511
1257926993433,1cyclictest1349903-21kworker/u32:4+events_unbound21:50:198
1257926993433,1cyclictest1349903-21kworker/u32:4+events_unbound21:50:198
1257931993332,1cyclictest1394488-21kworker/u32:1+flush-259:022:00:1710
1257926993333,0cyclictest0-21swapper/221:55:248
1257926993333,0cyclictest0-21swapper/221:55:248
1257922993333,0cyclictest0-21swapper/122:54:401
125796199320,29cyclictest0-21swapper/1321:40:165
125795199320,29cyclictest0-21swapper/1019:45:172
125796799310,30cyclictest0-21swapper/1520:08:577
125796399310,30cyclictest0-21swapper/1423:27:386
1257957993129,1cyclictest2395797-21snmpd00:11:004
125795799310,30cyclictest0-21swapper/1221:15:164
125795399310,30cyclictest0-21swapper/1123:45:583
125795199310,30cyclictest0-21swapper/1023:09:242
1257941993131,0cyclictest0-21swapper/721:35:2413
1257941993130,1cyclictest1377543-21mii-tool21:30:1413
1257941993129,1cyclictest1382037-21kworker/u32:0+events_unbound22:25:1913
125794199310,30cyclictest0-21swapper/721:20:2013
1257936993129,1cyclictest1340077-21ethtool20:45:1711
125793699310,30cyclictest0-21swapper/520:57:4611
125793699310,30cyclictest0-21swapper/520:20:1711
125793199310,30cyclictest0-21swapper/422:33:1010
125793199310,30cyclictest0-21swapper/420:28:2210
125792899310,30cyclictest0-21swapper/320:50:189
1257922993129,1cyclictest0-21swapper/122:05:231
125792099310,30cyclictest0-21swapper/021:02:460
1257967993029,1cyclictest1269381-21mii-tool19:20:157
1257967993029,1cyclictest0-21swapper/1500:32:097
125796799300,30cyclictest0-21swapper/1521:40:187
125796799300,1cyclictest0-21swapper/1523:28:057
1257963993029,1cyclictest2395797-21snmpd23:00:196
1257963993029,1cyclictest2395797-21snmpd21:11:076
1257963993029,1cyclictest2395797-21snmpd20:31:166
125796399300,29cyclictest0-21swapper/1419:27:526
125796399300,1cyclictest0-21swapper/1421:35:176
1257961993029,1cyclictest2395797-21snmpd23:51:065
1257961993029,1cyclictest2395797-21snmpd23:37:565
1257961993029,1cyclictest2395797-21snmpd21:18:375
1257961993029,1cyclictest2395797-21snmpd20:51:395
125796199300,30cyclictest0-21swapper/1321:34:235
125796199300,29cyclictest0-21swapper/1322:01:095
125796199300,1cyclictest0-21swapper/1322:50:515
125796199300,1cyclictest0-21swapper/1300:01:155
1257957993029,1cyclictest1489816-21ethtool23:45:164
125795399300,1cyclictest0-21swapper/1123:20:443
1257951993029,1cyclictest2395797-21snmpd19:22:292
1257951993026,4cyclictest2395797-21snmpd21:27:102
125795199300,1cyclictest0-21swapper/1021:04:022
1257944993029,1cyclictest2395797-21snmpd21:02:4714
1257944993029,1cyclictest1427462-21mii-tool22:30:1514
1257941993030,0cyclictest0-21swapper/719:32:0713
1257941993029,1cyclictest2395797-21snmpd20:08:5413
1257941993025,4cyclictest0-21swapper/721:55:2413
1257941993025,4cyclictest0-21swapper/721:55:2413
125794199300,30cyclictest0-21swapper/700:02:1213
1257938993029,1cyclictest2395797-21snmpd22:18:5112
125793899300,27cyclictest0-21swapper/622:45:1512
125793699305,0cyclictest0-21swapper/523:36:0211
1257936993028,1cyclictest1527286-21ethtool00:30:1611
1257931993029,1cyclictest2395797-21snmpd21:49:0510
1257931993029,1cyclictest0-21swapper/419:23:5810
1257931993028,2cyclictest0-21swapper/420:51:2710
1257928993029,1cyclictest2395797-21snmpd00:24:379
125792899300,30cyclictest0-21swapper/320:21:469
125792899300,29cyclictest0-21swapper/322:47:229
1257926993029,1cyclictest2395797-21snmpd23:05:278
1257926993029,1cyclictest2395797-21snmpd00:35:018
125792699300,30cyclictest0-21swapper/223:24:118
125792699300,30cyclictest0-21swapper/221:25:268
125792699300,30cyclictest0-21swapper/221:08:178
125792699300,1cyclictest0-21swapper/223:12:528
1257922993030,0cyclictest0-21swapper/121:20:121
125792299300,1cyclictest0-21swapper/123:20:021
1257920993029,1cyclictest2395797-21snmpd20:31:190
125792099300,29cyclictest0-21swapper/022:30:140
125796399290,29cyclictest0-21swapper/1422:55:166
1257961992928,1cyclictest0-21swapper/1323:22:465
1257957992928,1cyclictest2395797-21snmpd23:01:194
1257957992928,1cyclictest2395797-21snmpd20:21:074
125795799290,0cyclictest0-21swapper/1220:35:164
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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