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2026-07-16 - 18:59

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 Thu Jul 16, 2026 12:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
28588211594,16sleep00-21swapper/007:05:190
28610210897,6sleep20-21swapper/207:05:292
28660210796,6sleep10-21swapper/107:05:561
29098210587,13sleep30-21swapper/307:06:303
48522530,1sleep30-21swapper/310:40:153
29398993117,12cyclictest0-21swapper/310:15:103
2939799221,19cyclictest0-21swapper/212:25:102
2939799220,3cyclictest0-21swapper/212:16:022
2939799220,3cyclictest0-21swapper/207:21:052
2939899211,18cyclictest0-21swapper/310:05:113
2939799210,3cyclictest26654-21munin-node2
2939799210,3cyclictest16066-21ssh09:12:032
2939799210,3cyclictest0-21swapper/211:05:152
2939799210,3cyclictest0-21swapper/209:05:152
2939699210,19cyclictest0-21swapper/111:15:101
2939799201,3cyclictest25292-21ssh12:07:312
2939799200,3cyclictest7867-21tune2fs08:55:152
2939799200,3cyclictest43812chrt07:25:312
2939799200,3cyclictest3728-21runrttasks08:28:192
2939799200,3cyclictest25418-21sh10:28:262
2939799200,3cyclictest16339-21cat07:56:032
2939799200,3cyclictest16307-21ssh10:51:422
2939799200,3cyclictest10801-21sendmail-mta07:43:472
2939799200,3cyclictest0-21swapper/212:13:032
2939799200,3cyclictest0-21swapper/210:35:192
2939799200,3cyclictest0-21swapper/210:20:192
2939799200,3cyclictest0-21swapper/210:09:312
2939799200,3cyclictest0-21swapper/210:03:062
2939799200,3cyclictest0-21swapper/209:22:352
2939799200,3cyclictest0-21swapper/208:50:152
2939799200,2cyclictest0-21swapper/209:31:012
2939599200,18cyclictest0-21swapper/012:25:110
300902190,1sleep20-21swapper/210:33:092
2939799199,8cyclictest0-21swapper/207:35:162
2939799191,2cyclictest3728-21runrttasks10:16:212
2939799191,16cyclictest4295-21rm11:45:512
2939799190,3cyclictest3728-21runrttasks12:38:272
2939799190,3cyclictest3649-21snmpd08:42:512
2939799190,3cyclictest30879-21fschecks_time11:40:142
2939799190,3cyclictest29050-21sh09:25:192
2939799190,3cyclictest15146-21ssh11:56:552
2939799190,3cyclictest13137-21diskmemload12:24:192
2939799190,3cyclictest11687-21ssh09:40:472
2939799190,3cyclictest10093-21ssh10:12:232
2939799190,3cyclictest0-21swapper/212:01:552
2939799190,3cyclictest0-21swapper/211:03:352
2939799190,3cyclictest0-21swapper/209:16:392
2939799190,3cyclictest0-21swapper/208:17:472
2939799190,2cyclictest5944-21fschecks_count09:35:152
2939799190,2cyclictest5922-21switchtime10:41:032
2939799190,2cyclictest0-21swapper/208:04:562
2939799190,2cyclictest0-21swapper/207:31:012
2939799190,17cyclictest0-21swapper/209:54:582
2939799190,10cyclictest0-21swapper/209:45:072
2939699190,2cyclictest0-21swapper/108:05:061
29395991915,2cyclictest28588-21kworker/u8:111:17:050
2939799180,3cyclictest9911-21smartctl09:00:142
2939799180,3cyclictest25063-21apt-get11:35:072
2939799180,3cyclictest1420-21fschecks_count11:10:152
2939799180,2cyclictest20512-21timerandwakeup10:56:032
2939799180,2cyclictest10968-21apt-get07:45:062
2939799180,2cyclictest0-21swapper/211:30:472
2939799180,2cyclictest0-21swapper/211:26:152
2939799180,2cyclictest0-21swapper/211:20:152
2939799180,2cyclictest0-21swapper/211:15:422
2939799180,2cyclictest0-21swapper/210:45:112
2939699180,2cyclictest0-21swapper/112:10:141
32422170,0sleep13241-21pluginstate10:05:181
2939899170,2cyclictest0-21swapper/312:10:133
2939799170,2cyclictest3728-21runrttasks07:50:552
2939799170,2cyclictest19227-21apt-get08:05:072
2939799170,2cyclictest18673-21ssh12:34:432
2939799170,2cyclictest0-21swapper/208:23:312
2939799170,11cyclictest0-21swapper/211:52:212
29396991714,2cyclictest29394-21cyclictest10:15:091
29395991714,2cyclictest20088-21kworker/u8:010:25:050
2939899161,3cyclictest0-21swapper/312:01:053
2939899161,13cyclictest0-21swapper/310:04:593
2939699161,13cyclictest19159-40update-apt-xapi08:04:291
29395991613,2cyclictest8040-21kworker/u8:209:47:050
29395991613,2cyclictest25094-21kworker/u8:209:57:050
2939599160,11cyclictest0-21swapper/012:31:040
2939899152,7cyclictest0-21swapper/307:25:003
2939899151,3cyclictest9132-21ssh11:50:453
2939899151,3cyclictest1529-21ssh12:16:023
29398991510,3cyclictest23009-21munin-node3
29398991510,3cyclictest21857-21ssh12:37:073
2939899150,13cyclictest0-21swapper/310:45:113
2939799153,3cyclictest4421-21mailstats08:46:022
2939799153,3cyclictest30988-21unixbench_singl08:31:032
2939799153,10cyclictest31646-21hostname07:15:112
2939799150,13cyclictest0-21swapper/208:35:522
29395991512,2cyclictest31243-21kworker/u8:110:34:060
29395991512,2cyclictest15350-21kworker/u8:211:28:010
2939599151,12cyclictest27677-21diskstats12:10:160
2939899142,7cyclictest0-21swapper/307:50:003
2939899142,6cyclictest0-21swapper/310:25:003
2939899142,6cyclictest0-21swapper/309:35:003
2939899140,3cyclictest21131-21hddtemp_smartct11:30:153
2939899140,2cyclictest0-21swapper/311:56:053
2939899140,12cyclictest0-21swapper/311:05:123
2939899140,12cyclictest0-21swapper/310:54:283
2939899140,12cyclictest0-21swapper/309:58:513
2939899140,12cyclictest0-21swapper/309:21:073
2939799143,9cyclictest3127-21nscd08:10:112
2939799141,3cyclictest0-21swapper/207:10:112
2939699141,2cyclictest0-21swapper/110:20:171
29396991410,2cyclictest0-21swapper/111:40:141
29396991410,2cyclictest0-21swapper/108:50:391
29396991410,2cyclictest0-21swapper/108:20:511
2939699140,2cyclictest0-21swapper/110:25:331
2939699140,2cyclictest0-21swapper/107:20:181
2939699140,12cyclictest32003-21ssh11:08:231
2939699140,12cyclictest207150irq/24-eth109:50:121
2939699140,12cyclictest0-21swapper/111:02:341
29395991411,2cyclictest5009-21kworker/u8:209:10:040
29395991411,2cyclictest5009-21kworker/u8:208:55:040
29395991411,2cyclictest31243-21kworker/u8:110:38:040
29395991411,2cyclictest25094-21kworker/u8:210:10:040
29395991411,2cyclictest21608-21kworker/u8:011:49:050
29395991411,2cyclictest15387-21kworker/u8:110:55:040
2939599141,11cyclictest32633-21ssh11:09:200
2939599140,2cyclictest0-21swapper/009:30:010
2939599140,12cyclictest12556-21ssh11:55:050
22192140,2sleep00-21swapper/011:10:400
143612140,0sleep00-21swapper/009:44:170
2939899139,2cyclictest0-21swapper/309:17:153
2939899138,3cyclictest29547-21cut08:30:113
2939899132,6cyclictest0-21swapper/309:00:013
29398991310,2cyclictest0-21swapper/312:33:143
29398991310,2cyclictest0-21swapper/312:29:293
29398991310,2cyclictest0-21swapper/311:47:003
29398991310,2cyclictest0-21swapper/310:32:073
29398991310,2cyclictest0-21swapper/309:53:283
29398991310,2cyclictest0-21swapper/307:30:103
29398991310,2cyclictest0-21swapper/307:10:173
2939899130,2cyclictest0-21swapper/311:40:163
2939899130,2cyclictest0-21swapper/311:23:393
2939899130,2cyclictest0-21swapper/308:01:053
2939899130,12cyclictest0-21swapper/311:00:113
2939899130,11cyclictest13137-21diskmemload11:37:553
2939899130,11cyclictest0-21swapper/310:35:043
2939899130,11cyclictest0-21swapper/309:43:193
2939899130,11cyclictest0-21swapper/309:26:023
2939699139,2cyclictest206552sleep112:35:531
2939699139,2cyclictest0-21swapper/111:57:231
29396991310,2cyclictest207150irq/24-eth112:00:121
29396991310,2cyclictest13137-21diskmemload11:34:211
29396991310,2cyclictest0-21swapper/111:51:001
29396991310,2cyclictest0-21swapper/109:35:321
29396991310,2cyclictest0-21swapper/109:25:141
29396991310,2cyclictest0-21swapper/109:21:071
2939699130,2cyclictest0-21swapper/112:16:031
2939699130,2cyclictest0-21swapper/112:05:181
2939699130,2cyclictest0-21swapper/110:50:121
2939699130,12cyclictest0-21swapper/112:30:561
2939699130,12cyclictest0-21swapper/111:49:001
2939699130,12cyclictest0-21swapper/110:40:051
2939699130,12cyclictest0-21swapper/109:14:531
2939699130,11cyclictest13137-21diskmemload11:25:451
2939699130,11cyclictest0-21swapper/107:50:271
29395991310,2cyclictest9968-21kworker/u8:210:47:050
29395991310,2cyclictest21608-21kworker/u8:011:52:050
29395991310,2cyclictest20596-21kworker/u8:108:10:040
29395991310,2cyclictest19668-21kworker/u8:012:20:050
2939599130,12cyclictest0-21swapper/012:36:160
2939599130,12cyclictest0-21swapper/012:04:440
2939599130,11cyclictest0-21swapper/010:03:550
243922130,2sleep00-21swapper/012:06:110
231952130,2sleep00-21swapper/009:20:130
200552130,2sleep30-21swapper/310:55:403
14052130,2sleep00-21swapper/011:43:300
2939899129,2cyclictest0-21swapper/311:15:273
2939899129,2cyclictest0-21swapper/311:10:073
2939899129,2cyclictest0-21swapper/308:50:153
2939899129,2cyclictest0-21swapper/307:35:133
2939899127,3cyclictest15324-21aten2.4-expect07:55:143
2939899127,3cyclictest0-21swapper/310:25:133
2939899122,7cyclictest0-21swapper/308:44:593
29398991210,1cyclictest0-21swapper/308:25:133
2939899120,2cyclictest0-21swapper/311:25:043
2939899120,2cyclictest0-21swapper/309:35:333
2939899120,2cyclictest0-21swapper/309:11:013
2939899120,11cyclictest0-21swapper/312:20:083
2939899120,11cyclictest0-21swapper/310:12:113
2939899120,10cyclictest0-21swapper/309:46:243
2939699129,2cyclictest0-21swapper/110:45:121
2939699129,2cyclictest0-21swapper/110:10:131
2939699129,2cyclictest0-21swapper/109:47:061
2939699129,2cyclictest0-21swapper/109:40:191
2939699129,2cyclictest0-21swapper/109:30:111
2939699129,2cyclictest0-21swapper/108:45:151
2939699129,2cyclictest0-21swapper/108:15:161
2939699128,2cyclictest0-21swapper/111:10:151
2939699122,7cyclictest0-21swapper/108:13:591
2939699121,9cyclictest3728-21runrttasks08:40:001
2939699120,2cyclictest0-21swapper/112:25:031
2939699120,2cyclictest0-21swapper/112:20:511
2939699120,2cyclictest0-21swapper/111:37:371
2939699120,2cyclictest0-21swapper/111:21:321
2939699120,2cyclictest0-21swapper/110:35:461
2939699120,2cyclictest0-21swapper/108:55:301
2939699120,2cyclictest0-21swapper/107:11:021
2939699120,11cyclictest0-21swapper/110:56:191
2939699120,11cyclictest0-21swapper/110:32:501
2939699120,11cyclictest0-21swapper/110:00:151
2939699120,11cyclictest0-21swapper/109:55:321
2939699120,11cyclictest0-21swapper/109:15:011
2939699120,11cyclictest0-21swapper/109:00:171
2939699120,11cyclictest0-21swapper/107:45:121
2939699120,11cyclictest0-21swapper/107:26:011
2939699120,10cyclictest1893-21chrt08:40:181
2939699120,10cyclictest17033-21munin-run08:00:001
2939599129,2cyclictest23522-21kworker/u8:008:45:040
2939599129,2cyclictest2279-21kworker/u8:107:30:040
2939599129,2cyclictest12060-21kworker/u8:207:12:030
2939599129,2cyclictest0-21swapper/011:32:470
2939599129,2cyclictest0-21swapper/011:21:240
2939599129,2cyclictest0-21swapper/010:09:420
2939599129,2cyclictest0-21swapper/009:15:140
2939599120,2cyclictest0-21swapper/010:54:120
2939599120,2cyclictest0-21swapper/010:15:000
2939599120,2cyclictest0-21swapper/009:00:150
2939599120,2cyclictest0-21swapper/007:20:140
2939599120,11cyclictest13137-21diskmemload10:20:390
2939599120,11cyclictest0-21swapper/012:16:140
2939599120,11cyclictest0-21swapper/011:36:160
2939599120,11cyclictest0-21swapper/010:40:340
2939599120,11cyclictest0-21swapper/008:30:140
245102120,2sleep00-21swapper/011:00:170
68272110,2sleep00-21swapper/009:35:480
2939899118,2cyclictest0-21swapper/307:40:173
2939899111,6cyclictest0-21swapper/307:15:103
2939899110,3cyclictest3649-21snmpd07:52:413
2939899110,2cyclictest0-21swapper/308:05:263
2939699118,2cyclictest0-21swapper/108:25:131
2939699110,9cyclictest0-21swapper/107:40:181
2939699110,9cyclictest0-21swapper/107:15:121
2939699110,2cyclictest0-21swapper/107:30:161
2939699110,10cyclictest0-21swapper/107:35:131
2939599118,2cyclictest23522-21kworker/u8:008:26:040
2939599118,2cyclictest2279-21kworker/u8:107:42:040
2939599118,2cyclictest13224-21kworker/u8:207:52:010
2939599118,2cyclictest0-21swapper/009:29:250
2939599116,3cyclictest3443-21NetworkManager08:04:080
2939599112,7cyclictest0-21swapper/007:27:590
2939599112,6cyclictest0-21swapper/007:36:000
2939599111,5cyclictest0-21swapper/008:45:010
2939599110,10cyclictest0-21swapper/009:51:050
2939699102,5cyclictest0-21swapper/109:07:591
2939699100,2cyclictest29538-21apt-get08:30:111
2939599107,2cyclictest5009-21kworker/u8:209:06:040
2939599101,3cyclictest949-21cron07:20:000
2939599100,8cyclictest2279-21kworker/u8:107:45:040
2939599100,7cyclictest0-21swapper/008:50:010
293989996,2cyclictest0-21swapper/307:25:503
293989994,3cyclictest9405-21taskset09:00:123
293989994,3cyclictest31861-21df_abs08:35:133
293989994,3cyclictest25533-21aten2.4_r3power08:20:123
293989994,3cyclictest23650-21cpu08:15:143
293989994,3cyclictest21702-21cpuspeed_turbos08:10:133
293989991,6cyclictest0-21swapper/309:06:013
293959994,3cyclictest23725-21cut08:15:140
293959992,6cyclictest0-21swapper/008:06:030
293959991,7cyclictest0-21swapper/008:39:590
293959990,8cyclictest0-21swapper/008:23:420
16984290,2sleep00-21swapper/007:59:390
293989983,3cyclictest3237-21cut08:45:113
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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