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2026-08-03 - 20:22

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 all highest latencies:
System rack3slot6s.osadl.org (updated Mon Aug 03, 2026 12:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
143502112101,6sleep10-21swapper/107:09:211
14306210695,6sleep00-21swapper/007:08:480
14226210385,12sleep20-21swapper/207:07:462
14269210089,6sleep30-21swapper/307:08:193
20802830,4sleep21443299cyclictest09:46:162
20802830,4sleep21443299cyclictest09:46:162
314102730,1sleep3381ktimersoftd/310:16:043
113462660,0sleep30-21swapper/311:35:163
127902510,1sleep21443299cyclictest09:57:272
92732240,0sleep20-21swapper/209:20:392
74562240,1sleep30-21swapper/310:58:243
1443199242,20cyclictest0-21swapper/110:45:111
87782220,1sleep30-21swapper/311:32:403
1443399221,19cyclictest0-21swapper/310:50:123
1443399210,2cyclictest0-21swapper/307:50:133
1443399200,2cyclictest0-21swapper/308:40:113
1443299200,18cyclictest0-21swapper/211:55:112
1443299200,18cyclictest0-21swapper/211:45:122
14431992017,2cyclictest7347-21kworker/u8:010:09:041
14431992017,2cyclictest7347-21kworker/u8:010:02:041
14431992017,2cyclictest24164-21kworker/u8:209:36:041
14431992017,2cyclictest10558-21kworker/u8:011:50:041
128932200,1sleep10-21swapper/108:25:171
1443299190,18cyclictest0-21swapper/207:40:092
14431991916,2cyclictest8817-21kworker/u8:112:11:041
14431991916,2cyclictest8817-21kworker/u8:112:08:041
14431991916,2cyclictest32472-21kworker/u8:209:27:041
14431991916,2cyclictest26788-21kworker/u8:008:35:041
14431991916,2cyclictest17952-21kworker/u8:011:20:011
24172180,2sleep337-21rcuc/312:32:403
14431991815,2cyclictest9732-21kworker/u8:208:18:011
14431991815,2cyclictest4457-21kworker/u8:010:55:041
14431991815,2cyclictest4457-21kworker/u8:010:54:041
14431991815,2cyclictest28424-21kworker/u8:009:07:041
14431991815,2cyclictest20458-21kworker/u8:212:37:041
14431991815,2cyclictest14555-21kworker/u8:012:15:041
14431991815,2cyclictest12163-21kworker/u8:107:46:051
14431991815,2cyclictest12163-21kworker/u8:107:32:041
14431991815,2cyclictest10104-21kworker/u8:211:13:041
14431991815,2cyclictest10104-21kworker/u8:211:04:051
1443199181,2cyclictest0-21swapper/109:01:041
14431991714,2cyclictest9732-21kworker/u8:208:30:041
14431991714,2cyclictest4966-21kworker/u8:111:40:011
14431991714,2cyclictest4457-21kworker/u8:010:43:041
14431991714,2cyclictest26788-21kworker/u8:007:54:041
14431991714,2cyclictest26788-21kworker/u8:007:40:041
14431991714,2cyclictest25782-21kworker/u8:012:25:041
14431991714,2cyclictest24353-21kworker/u8:109:16:041
14431991714,2cyclictest10558-21kworker/u8:011:36:041
14431991714,2cyclictest10104-21kworker/u8:211:05:041
14430991712,3cyclictest18591-21ssh11:10:120
14432991611,3cyclictest26733-21df_inode09:00:142
14431991613,2cyclictest7347-21kworker/u8:010:14:041
14431991613,2cyclictest4457-21kworker/u8:010:37:041
14431991613,2cyclictest31837-21kworker/u8:211:34:041
14431991613,2cyclictest29010-21kworker/u8:111:55:041
14431991613,2cyclictest26788-21kworker/u8:008:49:041
14431991613,2cyclictest26788-21kworker/u8:008:44:041
14431991613,2cyclictest20458-21kworker/u8:212:32:031
14431991613,2cyclictest10558-21kworker/u8:012:00:041
14431991613,2cyclictest10558-21kworker/u8:011:48:041
14431991613,2cyclictest10104-21kworker/u8:211:15:041
1443399152,7cyclictest0-21swapper/307:30:003
1443399151,3cyclictest683-21irqstats09:45:163
1443399151,3cyclictest683-21irqstats09:45:163
1443399151,12cyclictest3649-21snmpd10:28:083
14433991510,3cyclictest2671-21ls12:00:133
14433991510,3cyclictest23597-21ssh11:47:593
14433991510,3cyclictest0-21swapper/308:15:003
1443399150,13cyclictest0-21swapper/310:05:123
1443399150,13cyclictest0-21swapper/308:50:183
14431991512,2cyclictest6036-21kworker/u8:009:22:041
14431991512,2cyclictest30881-21kworker/u8:208:10:041
14431991512,2cyclictest30711-21kworker/u8:110:20:041
14431991512,2cyclictest26788-21kworker/u8:008:01:041
14431991512,2cyclictest14679-21kworker/u8:207:11:041
1443199150,2cyclictest0-21swapper/109:10:041
1443099151,12cyclictest10646-21iostat_ios09:55:170
1443099151,12cyclictest0-21swapper/011:55:110
14430991510,3cyclictest12321-21fschecks_count10:30:150
14430991510,3cyclictest0-21swapper/007:25:000
1443399149,3cyclictest30943-21ntpq11:55:173
1443399142,7cyclictest0-21swapper/308:20:003
14433991411,2cyclictest0-21swapper/311:43:493
14433991411,2cyclictest0-21swapper/308:55:183
14433991410,2cyclictest18969-21ssh09:30:323
1443399140,3cyclictest17179-21ssh10:35:173
1443399140,3cyclictest0-21swapper/311:02:013
1443399140,13cyclictest0-21swapper/312:15:193
1443399140,12cyclictest17215-21munin-node3
1443399140,12cyclictest0-21swapper/311:28:493
1443399140,12cyclictest0-21swapper/309:15:173
1443399140,12cyclictest0-21swapper/307:45:113
1443399140,12cyclictest0-21swapper/307:20:183
14432991411,2cyclictest28007-21munin-node2
14432991411,2cyclictest0-21swapper/211:13:242
1443299140,2cyclictest0-21swapper/212:19:442
1443299140,2cyclictest0-21swapper/211:26:242
1443299140,2cyclictest0-21swapper/210:00:042
1443299140,13cyclictest0-21swapper/212:38:042
1443299140,13cyclictest0-21swapper/211:54:342
1443299140,13cyclictest0-21swapper/210:45:042
1443299140,12cyclictest3150-21nscd10:58:592
1443299140,12cyclictest14784-21unixbench_singl09:26:042
1443299140,12cyclictest10368-21cpu08:20:132
1443299140,12cyclictest0-21swapper/212:31:512
14431991411,2cyclictest8817-21kworker/u8:112:23:041
14431991411,2cyclictest20371-21kworker/u8:208:58:041
1443199140,2cyclictest0-21swapper/109:59:041
1443199140,2cyclictest0-21swapper/109:53:041
1443099149,3cyclictest0-21swapper/009:10:170
1443099141,3cyclictest16750-21chrt10:35:130
1443099141,2cyclictest0-21swapper/009:35:120
1443099141,11cyclictest24422-21ssh12:21:330
14430991410,2cyclictest0-21swapper/007:55:140
1443399138,3cyclictest15310-21ssh09:26:473
14433991310,2cyclictest0-21swapper/312:38:523
14433991310,2cyclictest0-21swapper/312:24:133
14433991310,2cyclictest0-21swapper/312:05:093
14433991310,2cyclictest0-21swapper/310:34:313
14433991310,2cyclictest0-21swapper/309:55:143
14433991310,2cyclictest0-21swapper/309:53:433
14433991310,2cyclictest0-21swapper/309:20:583
1443399130,2cyclictest30149-21diskmemload11:10:003
1443399130,2cyclictest0-21swapper/312:10:163
1443399130,2cyclictest0-21swapper/311:22:293
1443399130,2cyclictest0-21swapper/311:16:093
1443399130,2cyclictest0-21swapper/310:24:133
1443399130,2cyclictest0-21swapper/310:10:023
1443399130,2cyclictest0-21swapper/309:40:183
1443399130,2cyclictest0-21swapper/309:13:123
1443399130,12cyclictest0-21swapper/312:25:153
1443399130,12cyclictest0-21swapper/309:38:023
1443399130,11cyclictest0-21swapper/310:49:283
14432991310,2cyclictest0-21swapper/211:23:242
14432991310,2cyclictest0-21swapper/211:09:242
14432991310,2cyclictest0-21swapper/210:22:512
14432991310,2cyclictest0-21swapper/207:45:152
14432991310,2cyclictest0-21swapper/207:25:412
1443299130,2cyclictest24642-21ssh09:36:052
1443299130,2cyclictest0-21swapper/211:44:442
1443299130,2cyclictest0-21swapper/211:37:132
1443299130,2cyclictest0-21swapper/210:26:142
1443299130,2cyclictest0-21swapper/210:10:122
1443299130,2cyclictest0-21swapper/209:30:032
1443299130,2cyclictest0-21swapper/207:36:042
1443299130,12cyclictest380-21ssh10:50:532
1443299130,12cyclictest0-21swapper/212:04:342
1443299130,12cyclictest0-21swapper/210:36:242
1443299130,12cyclictest0-21swapper/210:33:342
1443299130,12cyclictest0-21swapper/209:50:402
1443299130,12cyclictest0-21swapper/209:10:182
1443299130,11cyclictest3152-21nscd10:41:292
1443299130,11cyclictest0-21swapper/212:23:152
1443199139,2cyclictest0-21swapper/107:20:201
1443199133,6cyclictest0-21swapper/107:16:021
14431991310,2cyclictest9732-21kworker/u8:208:20:041
14431991310,2cyclictest26788-21kworker/u8:008:05:041
14431991310,2cyclictest0-21swapper/109:33:261
1443099139,2cyclictest0-21swapper/011:51:100
1443099138,3cyclictest29522-21python09:06:030
1443099131,11cyclictest30149-21diskmemload09:15:050
14430991310,2cyclictest0-21swapper/011:33:400
14430991310,2cyclictest0-21swapper/011:20:100
14430991310,2cyclictest0-21swapper/009:20:150
1443099130,2cyclictest0-21swapper/011:15:140
141302130,2sleep00-21swapper/009:25:390
62392120,2sleep00-21swapper/012:03:400
209082120,2sleep00-21swapper/010:05:310
154112120,2sleep00-21swapper/011:40:030
1443399129,2cyclictest1548-21popularity-cont07:55:453
1443399122,7cyclictest0-21swapper/308:08:593
1443399122,7cyclictest0-21swapper/307:45:003
1443399120,6cyclictest0-21swapper/308:05:003
1443399120,2cyclictest0-21swapper/311:50:493
1443399120,2cyclictest0-21swapper/307:10:133
1443399120,11cyclictest0-21swapper/311:05:113
1443399120,11cyclictest0-21swapper/310:42:013
1443399120,11cyclictest0-21swapper/310:00:323
1443399120,11cyclictest0-21swapper/308:25:123
1443299129,2cyclictest0-21swapper/212:05:272
1443299129,2cyclictest0-21swapper/209:15:182
1443299129,2cyclictest0-21swapper/208:51:032
1443299129,2cyclictest0-21swapper/207:55:202
1443299120,2cyclictest10008-21ssh11:00:282
1443299120,2cyclictest0-21swapper/212:25:172
1443299120,2cyclictest0-21swapper/211:15:182
1443299120,2cyclictest0-21swapper/210:15:152
1443299120,2cyclictest0-21swapper/208:15:002
1443299120,11cyclictest12043-21copy12:10:012
1443299120,11cyclictest0-21swapper/211:30:422
1443299120,11cyclictest0-21swapper/210:07:122
1443299120,11cyclictest0-21swapper/207:16:032
1443299120,10cyclictest0-21swapper/208:49:552
1443199129,2cyclictest0-21swapper/111:26:081
1443199129,2cyclictest0-21swapper/110:15:061
1443199120,3cyclictest13800-21sed10:31:051
1443199120,11cyclictest0-21swapper/110:25:281
1443199120,11cyclictest0-21swapper/109:45:121
1443199120,11cyclictest0-21swapper/109:45:121
1443199120,11cyclictest0-21swapper/109:41:581
1443099129,2cyclictest30149-21diskmemload11:45:160
1443099129,2cyclictest0-21swapper/012:16:200
1443099129,2cyclictest0-21swapper/011:25:130
1443099129,2cyclictest0-21swapper/011:07:590
1443099129,2cyclictest0-21swapper/010:55:140
1443099129,2cyclictest0-21swapper/010:20:170
1443099129,2cyclictest0-21swapper/008:30:170
1443099129,2cyclictest0-21swapper/008:25:300
1443099127,3cyclictest31661-21cut10:50:130
1443099120,2cyclictest0-21swapper/009:45:180
1443099120,2cyclictest0-21swapper/009:45:180
1443099120,11cyclictest0-21swapper/012:31:040
1443099120,11cyclictest0-21swapper/012:09:400
1443099120,11cyclictest0-21swapper/010:40:070
1443099120,10cyclictest0-21swapper/010:26:300
275062110,2sleep00-21swapper/009:40:100
1443399118,2cyclictest0-21swapper/309:01:023
1443399118,2cyclictest0-21swapper/307:31:023
1443399111,7cyclictest0-21swapper/308:32:023
1443299112,6cyclictest0-21swapper/208:35:592
1443299112,6cyclictest0-21swapper/208:14:592
1443299110,2cyclictest0-21swapper/208:33:142
1443299110,10cyclictest0-21swapper/207:53:062
1443199118,2cyclictest1548-21popularity-cont07:55:321
1443199117,2cyclictest0-21swapper/108:50:501
1443099118,2cyclictest30149-21diskmemload10:13:030
1443099118,2cyclictest0-21swapper/012:13:200
1443099118,2cyclictest0-21swapper/011:00:100
1443099118,2cyclictest0-21swapper/009:00:200
1443099116,3cyclictest2416-21basename08:00:140
1443099116,3cyclictest0-21swapper/010:46:000
1443099112,5cyclictest0-21swapper/009:32:570
1443099111,7cyclictest4562-21gdm-simple-gree12:36:590
1443099110,2cyclictest0-21swapper/011:35:200
1443099110,1cyclictest0-21swapper/007:51:020
1443099110,10cyclictest0-21swapper/010:17:560
1443099110,10cyclictest0-21swapper/009:52:370
1443099110,10cyclictest0-21swapper/008:35:130
1443099110,10cyclictest0-21swapper/007:35:140
233202100,7sleep20-21swapper/207:30:182
215752100,2sleep10-21swapper/107:25:201
1443399102,7cyclictest0-21swapper/309:05:023
1443399101,7cyclictest11298-21fgrep08:21:013
1443299107,2cyclictest0-21swapper/208:40:002
1443299107,2cyclictest0-21swapper/208:26:022
1443299102,7cyclictest0-21swapper/207:23:012
1443299100,7cyclictest0-21swapper/209:09:022
1443299100,7cyclictest0-21swapper/208:58:592
1443099107,2cyclictest0-21swapper/008:05:130
1443099107,2cyclictest0-21swapper/007:40:150
1443099105,3cyclictest22548-21grep08:50:120
1443099105,3cyclictest17652-21ssh10:02:240
1443099103,5cyclictest0-21swapper/007:46:010
1443099102,6cyclictest0-21swapper/007:20:000
1443099102,5cyclictest0-21swapper/008:56:010
1443099100,7cyclictest4562-21gdm-simple-gree12:27:590
144339994,3cyclictest20620-21df08:45:163
144339994,3cyclictest16494-21tr08:35:113
144339994,3cyclictest0-21swapper/307:35:203
144329992,6cyclictest0-21swapper/207:11:012
144329990,7cyclictest0-21swapper/208:03:022
144319990,8cyclictest0-21swapper/107:36:021
144309994,3cyclictest9521-21timerwakeupswit08:16:030
144309994,3cyclictest22852-21sh07:30:140
144309994,3cyclictest21002-21df_abs07:25:140
144309994,3cyclictest20302-21munin-node0
144309994,3cyclictest19927-21sendmail-mta08:43:150
144309994,3cyclictest11058-21cut08:20:170
144309991,6cyclictest0-21swapper/008:10:110
144309991,6cyclictest0-21swapper/007:12:280
144329985,2cyclictest0-21swapper/208:05:032
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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