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2026-04-12 - 12:11

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #3, 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.
Unexpectedly long latencies may be caused by SMIs
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 highest latencies:
System rack3slot6s.osadl.org (updated Sun Apr 12, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10173211179,6sleep30-21swapper/319:09:073
9978210897,6sleep20-21swapper/219:06:382
9971210788,14sleep00-21swapper/019:06:320
9972210380,6sleep10-21swapper/119:06:321
76062740,0sleep20-21swapper/222:30:412
66262730,1sleep00-21swapper/000:10:160
131112720,1sleep00-21swapper/023:44:020
36672680,1sleep30-21swapper/320:15:013
10272993616,18cyclictest0-21swapper/221:45:122
10272993213,17cyclictest0-21swapper/222:25:092
223512250,0sleep20-21swapper/221:00:152
3282240,0sleep30-21swapper/322:23:563
1027299210,19cyclictest0-21swapper/223:55:132
1027199211,2cyclictest0-21swapper/123:55:131
1027199210,19cyclictest207150irq/24-eth100:10:101
289112200,0sleep20-21swapper/222:53:142
10273992017,2cyclictest0-21swapper/322:10:123
1027299200,15cyclictest0-21swapper/221:42:042
1027199200,2cyclictest0-21swapper/123:25:121
1027099201,2cyclictest0-21swapper/022:00:100
295562190,0sleep10-21swapper/119:56:031
286772190,0sleep30-21swapper/321:45:293
1027399190,2cyclictest0-21swapper/322:05:133
1027399170,15cyclictest0-21swapper/322:40:113
10271991714,2cyclictest14555-21kworker/u8:121:57:041
96392161,3sleep10-21swapper/122:00:111
1027399161,13cyclictest29780-21munin-node3
10273991611,3cyclictest0-21swapper/321:21:033
1027399160,6cyclictest0-21swapper/323:54:593
1027299161,3cyclictest30910-21aten2.4_r3power21:15:132
10272991613,2cyclictest24935-21kworker/u8:100:35:032
1027299160,13cyclictest0-21swapper/221:35:162
10271991611,3cyclictest0-21swapper/119:35:151
1027099162,7cyclictest0-21swapper/000:37:590
1027399151,12cyclictest0-21swapper/321:51:213
10273991510,3cyclictest8713-21sort21:25:153
1027399150,3cyclictest22546-21wc21:00:173
1027399150,13cyclictest0-21swapper/322:39:043
1027399150,13cyclictest0-21swapper/321:57:303
1027299150,13cyclictest25963-21tail19:46:032
10271991512,2cyclictest5782-21kworker/u8:221:14:041
10271991512,2cyclictest4644-21kworker/u8:122:37:031
1027199151,12cyclictest0-21swapper/119:15:151
1027099152,7cyclictest0-21swapper/020:55:000
1027099150,13cyclictest0-21swapper/023:15:120
221702140,10sleep122348-21fschecks_time21:00:151
129522141,3sleep312962-21ssh21:30:073
1027399141,2cyclictest17547-21apt-get20:50:053
10273991411,2cyclictest25663-21diskmemload23:06:413
10273991411,2cyclictest0-21swapper/323:41:423
10273991411,2cyclictest0-21swapper/322:45:313
10273991411,2cyclictest0-21swapper/321:37:413
1027399140,2cyclictest0-21swapper/300:05:113
1027399140,13cyclictest0-21swapper/323:34:413
1027399140,13cyclictest0-21swapper/323:19:023
1027399140,13cyclictest0-21swapper/323:01:323
1027399140,13cyclictest0-21swapper/322:26:013
1027399140,12cyclictest0-21swapper/321:40:483
1027299140,12cyclictest0-21swapper/223:46:032
1027199141,3cyclictest0-21swapper/100:24:021
10271991411,2cyclictest3348-21kworker/u8:100:01:041
10271991411,2cyclictest23621-21kworker/u8:223:23:031
10271991411,2cyclictest18612-21kworker/u8:000:30:011
10271991411,2cyclictest16357-21kworker/u8:223:50:041
10271991411,2cyclictest15483-21kworker/u8:119:32:031
1027199141,11cyclictest21501-21runrttasks22:11:231
10271991410,2cyclictest7699-21apt-get20:25:121
10271991410,2cyclictest2229-21ssh21:51:431
1027199140,3cyclictest207150irq/24-eth122:47:431
1027199140,2cyclictest25663-21diskmemload23:05:051
1027099142,6cyclictest0-21swapper/020:25:000
1027099141,3cyclictest16180-21iostat00:20:150
10270991410,3cyclictest0-21swapper/022:12:350
1027099140,12cyclictest2480-21ssh22:25:240
1027099140,12cyclictest0-21swapper/022:56:100
1027099140,12cyclictest0-21swapper/022:56:100
319312130,2sleep10-21swapper/100:36:221
303252130,1sleep2301ktimersoftd/222:20:432
113772130,2sleep10-21swapper/123:41:201
10273991310,2cyclictest25663-21diskmemload23:20:423
10273991310,2cyclictest0-21swapper/323:56:103
10273991310,2cyclictest0-21swapper/322:56:203
10273991310,2cyclictest0-21swapper/322:56:203
10273991310,2cyclictest0-21swapper/322:50:513
10273991310,2cyclictest0-21swapper/322:33:013
10273991310,2cyclictest0-21swapper/320:00:133
10273991310,2cyclictest0-21swapper/319:35:123
10273991310,2cyclictest0-21swapper/300:32:223
1027399130,2cyclictest0-21swapper/321:10:213
1027399130,2cyclictest0-21swapper/320:30:153
1027399130,2cyclictest0-21swapper/319:10:173
1027399130,2cyclictest0-21swapper/300:16:323
1027399130,12cyclictest0-21swapper/323:47:513
1027399130,12cyclictest0-21swapper/300:10:043
1027299139,2cyclictest0-21swapper/221:05:052
1027299138,3cyclictest9963-21iostat23:40:162
10272991310,2cyclictest20765-21apt-get22:45:122
10272991310,2cyclictest0-21swapper/222:44:342
10272991310,2cyclictest0-21swapper/220:50:042
10272991310,2cyclictest0-21swapper/220:20:152
10272991310,2cyclictest0-21swapper/219:35:142
1027299130,2cyclictest7227-21ssh23:04:442
1027299130,2cyclictest31235-21ssh23:29:332
1027299130,2cyclictest0-21swapper/221:25:332
1027299130,2cyclictest0-21swapper/200:20:172
1027299130,2cyclictest0-21swapper/200:03:352
1027299130,12cyclictest0-21swapper/223:20:232
1027299130,12cyclictest0-21swapper/223:12:532
1027299130,11cyclictest28510-21df19:55:142
1027299130,11cyclictest0-21swapper/222:37:412
1027199138,3cyclictest25663-21diskmemload23:36:021
1027199138,3cyclictest0-21swapper/121:39:571
1027199131,10cyclictest0-21swapper/120:20:151
10271991310,2cyclictest6565-21kworker/u8:221:34:051
10271991310,2cyclictest3348-21kworker/u8:123:34:041
10271991310,2cyclictest32704-21kworker/u8:200:18:041
10271991310,2cyclictest32363-21kworker/u8:121:18:051
10271991310,2cyclictest2827-21kworker/u8:123:10:041
10271991310,2cyclictest25663-21diskmemload21:47:221
10271991310,2cyclictest22051-21kworker/u8:122:52:051
10271991310,2cyclictest18179-21kworker/u8:219:29:041
10271991310,2cyclictest15483-21kworker/u8:119:54:041
10271991310,2cyclictest15483-21kworker/u8:119:43:041
10271991310,2cyclictest15483-21kworker/u8:119:14:041
10271991310,2cyclictest0-21swapper/121:42:531
10271991310,2cyclictest0-21swapper/121:20:161
1027199130,2cyclictest19820-21apt-get00:25:041
1027199130,2cyclictest0-21swapper/122:25:131
1027099132,6cyclictest0-21swapper/019:45:010
1027099131,7cyclictest0-21swapper/021:55:000
1027099131,6cyclictest0-21swapper/022:45:000
10270991310,2cyclictest29306-21ssh21:13:100
10270991310,2cyclictest25663-21diskmemload22:06:040
10270991310,2cyclictest0-21swapper/023:57:300
10270991310,2cyclictest0-21swapper/023:30:050
10270991310,2cyclictest0-21swapper/022:46:070
10270991310,2cyclictest0-21swapper/022:33:590
10270991310,2cyclictest0-21swapper/022:15:070
10270991310,2cyclictest0-21swapper/021:45:500
10270991310,2cyclictest0-21swapper/021:35:190
10270991310,2cyclictest0-21swapper/021:21:160
10270991310,2cyclictest0-21swapper/021:16:160
10270991310,2cyclictest0-21swapper/019:56:020
10270991310,2cyclictest0-21swapper/000:34:100
1027099130,4cyclictest0-21swapper/000:28:580
1027099130,2cyclictest14027-21ssh23:45:090
1027099130,2cyclictest0-21swapper/023:38:380
1027099130,2cyclictest0-21swapper/022:52:100
1027099130,2cyclictest0-21swapper/021:00:170
1027099130,2cyclictest0-21swapper/020:45:000
1027099130,2cyclictest0-21swapper/019:35:100
1027099130,12cyclictest0-21swapper/023:27:170
1027099130,12cyclictest0-21swapper/023:02:150
1027099130,12cyclictest0-21swapper/020:25:150
1027099130,12cyclictest0-21swapper/000:01:010
80852120,1sleep00-21swapper/021:25:030
62262120,2sleep20-21swapper/221:22:272
3402120,1sleep00-21swapper/022:23:590
1027399129,2cyclictest25663-21diskmemload00:04:033
1027399129,2cyclictest12269-21copy23:10:033
1027399129,2cyclictest0-21swapper/322:15:393
1027399129,2cyclictest0-21swapper/322:02:093
1027399129,2cyclictest0-21swapper/319:55:193
1027399129,2cyclictest0-21swapper/319:40:153
1027399129,2cyclictest0-21swapper/319:15:133
1027399122,7cyclictest0-21swapper/321:19:593
1027399122,6cyclictest0-21swapper/320:56:013
1027399122,6cyclictest0-21swapper/320:46:033
10273991210,1cyclictest0-21swapper/323:38:293
1027399120,11cyclictest0-21swapper/323:26:243
1027399120,11cyclictest0-21swapper/320:20:483
1027399120,11cyclictest0-21swapper/300:25:373
1027399120,11cyclictest0-21swapper/300:20:013
1027299129,2cyclictest27550-21kworker/u8:221:55:042
1027299129,2cyclictest14555-21kworker/u8:122:03:042
1027299129,2cyclictest0-21swapper/223:50:342
1027299129,2cyclictest0-21swapper/222:56:042
1027299129,2cyclictest0-21swapper/222:56:032
1027299129,2cyclictest0-21swapper/222:06:442
1027299129,2cyclictest0-21swapper/220:40:132
1027299129,2cyclictest0-21swapper/219:16:012
1027299129,2cyclictest0-21swapper/200:19:022
1027299127,3cyclictest21516-21ssh23:19:262
10272991210,1cyclictest0-21swapper/223:31:142
1027299120,2cyclictest28477-21ssh21:11:532
1027299120,2cyclictest0-21swapper/223:37:242
1027299120,2cyclictest0-21swapper/223:09:422
1027299120,2cyclictest0-21swapper/200:05:112
1027299120,11cyclictest0-21swapper/222:18:432
1027299120,11cyclictest0-21swapper/222:10:232
1027299120,11cyclictest0-21swapper/221:50:162
1027299120,11cyclictest0-21swapper/200:32:432
1027299120,11cyclictest0-21swapper/200:13:222
1027199129,2cyclictest25663-21diskmemload23:01:371
1027199129,2cyclictest14555-21kworker/u8:122:05:041
1027199129,2cyclictest0-21swapper/123:46:051
1027199129,2cyclictest0-21swapper/122:56:331
1027199129,2cyclictest0-21swapper/122:56:321
1027199129,2cyclictest0-21swapper/122:40:181
1027199127,3cyclictest0-21swapper/120:55:131
1027199121,9cyclictest9701-21sh21:25:581
1027199121,9cyclictest3858-21munin-node1
1027199121,9cyclictest0-21swapper/122:20:171
1027199121,9cyclictest0-21swapper/121:05:131
1027199121,9cyclictest0-21swapper/120:50:041
1027199121,9cyclictest0-21swapper/120:10:131
1027199121,9cyclictest0-21swapper/120:00:141
1027199121,9cyclictest0-21swapper/119:45:151
1027199121,9cyclictest0-21swapper/119:20:151
1027199121,3cyclictest0-21swapper/120:30:311
1027199120,3cyclictest0-21swapper/120:45:191
1027199120,2cyclictest0-21swapper/123:15:361
1027199120,2cyclictest0-21swapper/122:32:011
1027199120,2cyclictest0-21swapper/120:35:141
1027199120,11cyclictest0-21swapper/122:15:301
1027199120,10cyclictest3146-21nscd20:05:161
1027099129,2cyclictest0-21swapper/023:51:280
1027099129,2cyclictest0-21swapper/022:35:320
1027099129,2cyclictest0-21swapper/021:30:020
1027099129,2cyclictest0-21swapper/020:45:170
1027099129,2cyclictest0-21swapper/020:30:150
1027099129,2cyclictest0-21swapper/000:15:060
1027099129,2cyclictest0-21swapper/000:05:120
1027099121,7cyclictest0-21swapper/019:26:020
1027099120,2cyclictest0-21swapper/021:50:520
1027099120,2cyclictest0-21swapper/021:40:400
1027099120,11cyclictest0-21swapper/023:20:310
1027099120,11cyclictest0-21swapper/023:10:380
1027099120,11cyclictest0-21swapper/023:05:480
1027099120,11cyclictest0-21swapper/020:55:170
1027099120,11cyclictest0-21swapper/019:15:150
143242110,2sleep10-21swapper/120:40:161
1027299118,2cyclictest0-21swapper/221:32:042
1027299118,2cyclictest0-21swapper/200:25:062
1027199110,3cyclictest833-21munin-node1
1027099118,2cyclictest0-21swapper/019:45:130
1027099118,2cyclictest0-21swapper/019:11:010
1027099116,3cyclictest0-21swapper/020:35:150
1027099112,6cyclictest0-21swapper/020:02:590
1027099111,6cyclictest0-21swapper/021:05:120
1027099110,10cyclictest0-21swapper/020:10:300
150462100,1sleep00-21swapper/019:20:130
1027399107,2cyclictest0-21swapper/320:26:013
1027399107,2cyclictest0-21swapper/319:21:023
1027399106,3cyclictest13747-21munin-node3
1027399102,7cyclictest0-21swapper/319:54:593
1027399102,7cyclictest0-21swapper/319:46:023
1027399102,7cyclictest0-21swapper/319:29:593
1027299107,2cyclictest0-21swapper/220:25:162
1027299107,2cyclictest0-21swapper/220:11:032
1027299101,5cyclictest0-21swapper/219:30:102
1027299100,8cyclictest0-21swapper/220:00:112
102739992,4cyclictest0-21swapper/319:32:023
102739991,7cyclictest0-21swapper/321:07:593
102739990,6cyclictest0-21swapper/320:16:593
102729994,3cyclictest9901-21cpu20:30:142
102729994,3cyclictest27020-21fschecks_count19:50:142
102729994,3cyclictest24001-21grep19:41:032
102729994,3cyclictest16848-21sed19:25:142
102729994,3cyclictest16401-21modprobe20:45:172
102729994,3cyclictest15041-21cut19:20:132
102729992,5cyclictest0-21swapper/220:54:592
102729992,5cyclictest0-21swapper/219:14:502
102729990,8cyclictest0-21swapper/220:35:192
102729990,3cyclictest3649-21snmpd20:05:002
102709994,3cyclictest3127-21nscd19:50:140
102709992,5cyclictest0-21swapper/019:35:010
102709991,3cyclictest32755-21grep20:05:140
102709990,5cyclictest0-21swapper/020:15:030
102739985,2cyclictest11721-21apt-get20:35:123
102739981,6cyclictest0-21swapper/320:06:013
102729983,3cyclictest4122-21cpuspeed_turbos20:15:142
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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