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2026-08-08 - 12:18

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 Sat Aug 08, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1266721370,1sleep312666-21ssh22:43:093
32571211597,13sleep30-21swapper/319:08:343
32471211188,18sleep00-21swapper/019:07:150
32579210993,11sleep10-21swapper/119:08:411
32610210594,6sleep20-21swapper/219:09:062
28012750,0sleep30-21swapper/300:10:473
3271699370,35cyclictest0-21swapper/221:15:112
32711993315,16cyclictest0-21swapper/023:05:110
157882330,1sleep20-21swapper/221:40:512
32717992219,2cyclictest16758-21kworker/u8:021:24:013
74832210,0sleep10-21swapper/122:05:151
32717992118,2cyclictest493-21kworker/u8:221:29:043
32717992118,2cyclictest11775-21kworker/u8:119:41:053
3271199210,4cyclictest0-21swapper/022:13:040
257012210,1sleep00-21swapper/022:24:020
32717992017,2cyclictest7972-21kworker/u8:121:57:053
32717992017,2cyclictest7910-21kworker/u8:023:21:043
32717992017,2cyclictest28380-21kworker/u8:223:18:043
32717992017,2cyclictest16694-21kworker/u8:123:37:053
32717992017,2cyclictest13414-21kworker/u8:023:50:043
32716992016,2cyclictest0-21swapper/221:45:132
3271699200,2cyclictest0-21swapper/221:05:112
32711992017,2cyclictest29541-21kworker/u8:023:42:010
32711992017,2cyclictest2937-21kworker/u8:222:18:050
32711992017,2cyclictest18964-21kworker/u8:022:25:040
3271199200,2cyclictest0-21swapper/023:45:140
3271199200,2cyclictest0-21swapper/023:00:110
3271199200,2cyclictest0-21swapper/021:55:110
3271199200,19cyclictest0-21swapper/020:50:110
32717991916,2cyclictest9422-21kworker/u8:123:08:053
32717991916,2cyclictest16758-21kworker/u8:021:17:043
32717991916,2cyclictest16694-21kworker/u8:123:27:043
32717991915,3cyclictest582-21kworker/u8:222:37:043
3271799190,3cyclictest0-21swapper/322:13:043
32711991916,2cyclictest9422-21kworker/u8:122:53:040
32711991916,2cyclictest6609-21kworker/u8:200:28:040
32711991916,2cyclictest493-21kworker/u8:221:28:010
32711991916,2cyclictest16758-21kworker/u8:021:22:040
32711991916,2cyclictest14930-21kworker/u8:019:54:050
32711991915,3cyclictest25322-21kworker/u8:200:01:040
3271199191,2cyclictest0-21swapper/019:20:120
3271199190,2cyclictest0-21swapper/020:30:110
23822190,1sleep229-21rcuc/221:27:442
32717991815,2cyclictest31944-21kworker/u8:020:34:023
32717991815,2cyclictest26778-21kworker/u8:122:28:043
32717991815,2cyclictest20065-21kworker/u8:000:33:043
32717991815,2cyclictest16694-21kworker/u8:123:45:043
32717991815,2cyclictest16694-21kworker/u8:123:31:043
32717991815,2cyclictest13414-21kworker/u8:023:55:043
32711991815,2cyclictest24367-21kworker/u8:022:07:040
32711991815,2cyclictest24367-21kworker/u8:022:04:050
32717991714,2cyclictest8016-21kworker/u8:219:25:043
32717991714,2cyclictest7910-21kworker/u8:023:13:053
32717991714,2cyclictest6609-21kworker/u8:200:20:053
32717991714,2cyclictest582-21kworker/u8:222:34:013
32717991714,2cyclictest29541-21kworker/u8:023:43:043
32717991714,2cyclictest25322-21kworker/u8:200:08:043
32717991714,2cyclictest25322-21kworker/u8:200:02:043
32717991714,2cyclictest25099-21kworker/u8:200:35:053
32717991714,2cyclictest24367-21kworker/u8:021:54:043
32717991714,2cyclictest15993-21kworker/u8:222:46:053
32717991714,2cyclictest14930-21kworker/u8:020:07:053
32717991714,2cyclictest14930-21kworker/u8:019:59:043
32717991714,2cyclictest11775-21kworker/u8:119:39:043
32717991714,2cyclictest10730-21kworker/u8:122:15:043
3271799170,2cyclictest0-21swapper/322:23:053
3271799170,15cyclictest0-21swapper/300:26:053
32711991714,2cyclictest8016-21kworker/u8:219:31:040
32711991714,2cyclictest7972-21kworker/u8:121:40:050
32711991714,2cyclictest7972-21kworker/u8:121:37:050
32711991714,2cyclictest4772-21kworker/u8:120:43:040
32711991714,2cyclictest25099-21kworker/u8:200:34:040
32711991714,2cyclictest24367-21kworker/u8:021:53:040
32711991714,2cyclictest22500-21kworker/u8:022:56:050
32711991714,2cyclictest16694-21kworker/u8:123:38:040
32711991714,2cyclictest16694-21kworker/u8:123:29:040
32711991714,2cyclictest14930-21kworker/u8:019:56:060
32711991713,3cyclictest582-21kworker/u8:222:40:010
3271199170,2cyclictest16491-21diskmemload23:16:050
3271199170,15cyclictest6808-21tail20:45:130
32717991613,2cyclictest4772-21kworker/u8:120:41:043
32717991613,2cyclictest20547-21kworker/u8:120:24:043
32717991613,2cyclictest16758-21kworker/u8:021:42:043
3271799161,13cyclictest7596-21iostat_ios22:05:163
3271699160,3cyclictest30937-21sh21:56:022
3271699160,14cyclictest0-21swapper/221:33:322
32712991611,3cyclictest23933-21latency_hist21:50:011
3271299160,2cyclictest0-21swapper/121:26:041
3271199161,3cyclictest0-21swapper/020:05:130
32711991613,2cyclictest6609-21kworker/u8:200:20:010
32711991613,2cyclictest31944-21kworker/u8:020:36:040
32711991613,2cyclictest2152-21kworker/u8:221:04:040
32711991613,2cyclictest14930-21kworker/u8:020:12:040
32711991613,2cyclictest10666-21kworker/u8:119:27:040
3271199160,2cyclictest0-21swapper/023:33:040
3271199160,2cyclictest0-21swapper/021:14:020
288812160,0sleep10-21swapper/123:31:371
32717991512,2cyclictest2152-21kworker/u8:221:07:043
32717991512,2cyclictest10666-21kworker/u8:119:17:053
32717991512,2cyclictest10666-21kworker/u8:119:13:043
3271799151,12cyclictest21708-21ssh21:46:413
3271799150,2cyclictest0-21swapper/322:57:043
3271799150,2cyclictest0-21swapper/321:14:013
32716991510,3cyclictest25507-21irqstats20:10:162
32716991510,3cyclictest20129-21ntp_states22:50:172
32716991510,3cyclictest0-21swapper/223:48:552
32716991510,3cyclictest0-21swapper/200:34:222
3271699150,13cyclictest0-21swapper/222:43:192
3271299150,2cyclictest0-21swapper/100:19:071
32711991512,2cyclictest14930-21kworker/u8:020:15:040
32711991512,2cyclictest13414-21kworker/u8:000:10:040
3271199150,2cyclictest0-21swapper/023:23:040
3271199150,2cyclictest0-21swapper/022:30:040
3271199150,13cyclictest0-21swapper/023:50:140
3271199150,13cyclictest0-21swapper/023:14:330
3271199150,13cyclictest0-21swapper/022:49:040
3271799141,2cyclictest10284-21munin-node3
32717991411,2cyclictest4772-21kworker/u8:120:48:043
32717991411,2cyclictest2152-21kworker/u8:221:02:043
32717991411,2cyclictest14930-21kworker/u8:020:04:043
32717991411,2cyclictest14930-21kworker/u8:019:52:043
32717991411,2cyclictest10666-21kworker/u8:119:20:043
32717991411,2cyclictest0-21swapper/321:30:493
32717991410,3cyclictest10666-21kworker/u8:119:30:043
3271799140,13cyclictest16491-21diskmemload22:50:093
3271799140,13cyclictest0-21swapper/320:15:193
3271699149,3cyclictest16511-21aten2.4-expect00:25:122
32716991411,2cyclictest0-21swapper/222:58:422
32716991411,2cyclictest0-21swapper/222:21:022
32716991411,2cyclictest0-21swapper/221:53:222
3271699140,3cyclictest0-21swapper/223:42:212
3271699140,3cyclictest0-21swapper/200:39:562
3271699140,2cyclictest0-21swapper/223:16:522
3271699140,12cyclictest29244-21ssh23:00:122
3271699140,12cyclictest18843-21ssh22:50:002
3271699140,12cyclictest10951-21cpuspeed_turbos19:35:122
3271699140,12cyclictest0-21swapper/223:55:142
3271699140,12cyclictest0-21swapper/223:36:382
3271699140,12cyclictest0-21swapper/220:55:122
3271699140,12cyclictest0-21swapper/200:21:592
3271699140,12cyclictest0-21swapper/200:00:242
32712991411,2cyclictest7061-21sh21:32:041
32712991411,2cyclictest28380-21kworker/u8:223:16:051
3271299140,3cyclictest21579-21latency20:00:151
3271299140,12cyclictest0-21swapper/122:11:311
32711991411,2cyclictest31944-21kworker/u8:020:26:040
32711991411,2cyclictest25322-21kworker/u8:200:09:040
32711991411,2cyclictest2152-21kworker/u8:220:59:040
3271199140,2cyclictest0-21swapper/021:47:040
3271199140,2cyclictest0-21swapper/019:43:040
3271199140,2cyclictest0-21swapper/019:36:040
3271199140,2cyclictest0-21swapper/019:10:050
32717991310,2cyclictest14930-21kworker/u8:019:49:043
3271799130,2cyclictest0-21swapper/322:03:203
3271799130,2cyclictest0-21swapper/320:29:043
3271799130,11cyclictest0-21swapper/300:15:043
3271699139,2cyclictest0-21swapper/221:20:512
32716991310,2cyclictest0-21swapper/223:34:152
32716991310,2cyclictest0-21swapper/222:37:042
32716991310,2cyclictest0-21swapper/222:34:412
32716991310,2cyclictest0-21swapper/222:00:132
32716991310,2cyclictest0-21swapper/221:39:122
32716991310,2cyclictest0-21swapper/200:13:322
3271699130,2cyclictest0-21swapper/221:00:132
3271699130,2cyclictest0-21swapper/219:50:112
3271699130,2cyclictest0-21swapper/219:30:142
3271699130,2cyclictest0-21swapper/219:26:042
3271699130,2cyclictest0-21swapper/200:17:192
3271699130,12cyclictest0-21swapper/223:29:522
3271699130,12cyclictest0-21swapper/222:13:022
3271699130,11cyclictest30105-21ssh00:05:302
3271699130,11cyclictest16491-21diskmemload22:08:242
3271699130,11cyclictest0-21swapper/223:12:092
3271299139,2cyclictest1678-21sh23:37:041
3271299139,2cyclictest0-21swapper/100:30:191
3271299138,4cyclictest207150irq/24-eth123:11:041
32712991310,2cyclictest0-21swapper/122:43:521
32712991310,2cyclictest0-21swapper/121:17:101
3271299130,11cyclictest0-21swapper/121:40:291
32711991310,2cyclictest14930-21kworker/u8:020:00:040
32711991310,2cyclictest12682-21kworker/u8:121:05:040
32711991310,2cyclictest0-21swapper/021:31:020
3271199130,2cyclictest0-21swapper/023:56:010
3271199130,2cyclictest0-21swapper/022:35:520
3271199130,2cyclictest0-21swapper/000:18:050
3271199130,12cyclictest0-21swapper/000:35:180
231972130,2sleep00-21swapper/021:15:480
195752130,2sleep20-21swapper/221:12:142
3271699129,2cyclictest0-21swapper/223:51:522
3271699129,2cyclictest0-21swapper/223:07:432
3271699129,2cyclictest0-21swapper/222:25:122
3271699129,2cyclictest0-21swapper/220:40:162
3271699122,7cyclictest0-21swapper/220:46:582
3271699122,6cyclictest0-21swapper/220:10:012
3271699120,2cyclictest0-21swapper/223:21:022
3271699120,2cyclictest0-21swapper/219:40:142
3271699120,2cyclictest0-21swapper/219:20:162
3271699120,11cyclictest18317-21ssh22:15:592
3271699120,11cyclictest0-21swapper/220:51:002
3271699120,11cyclictest0-21swapper/220:20:162
3271299129,2cyclictest7972-21kworker/u8:121:55:041
3271299129,2cyclictest0-21swapper/122:54:101
3271299129,2cyclictest0-21swapper/121:20:111
3271299129,2cyclictest0-21swapper/120:35:111
3271299129,2cyclictest0-21swapper/100:25:281
3271299129,2cyclictest0-21swapper/100:21:231
3271299129,2cyclictest0-21swapper/100:10:271
3271299129,2cyclictest0-21swapper/100:06:021
3271299121,10cyclictest0-21swapper/123:00:141
3271299120,2cyclictest0-21swapper/122:30:501
3271299120,2cyclictest0-21swapper/122:27:401
3271299120,2cyclictest0-21swapper/122:22:101
3271299120,2cyclictest0-21swapper/121:39:001
3271299120,2cyclictest0-21swapper/119:20:491
3271299120,2cyclictest0-21swapper/100:35:281
3271299120,10cyclictest0-21swapper/122:35:191
3271199120,2cyclictest0-21swapper/019:19:040
112342120,2sleep30-21swapper/320:55:173
3271799118,2cyclictest8357-21kworker/u8:020:51:043
3271799110,2cyclictest0-21swapper/320:35:043
3271799110,2cyclictest0-21swapper/320:13:043
3271799110,10cyclictest0-21swapper/323:03:513
3271699118,2cyclictest0-21swapper/219:15:172
3271699118,2cyclictest0-21swapper/219:10:062
3271699112,5cyclictest0-21swapper/220:00:002
3271699110,6cyclictest28642-21tr20:19:592
3271299118,2cyclictest4058-21apt-get23:40:111
3271299118,2cyclictest11775-21kworker/u8:119:36:041
3271299118,2cyclictest0-21swapper/123:21:021
3271299118,2cyclictest0-21swapper/122:03:411
3271299118,2cyclictest0-21swapper/121:50:321
3271299118,2cyclictest0-21swapper/120:20:201
3271299118,2cyclictest0-21swapper/120:05:151
3271299115,2cyclictest207150irq/24-eth122:16:141
3271299110,9cyclictest699-21tr20:30:131
3271299110,9cyclictest6715-21munin-node1
3271299110,2cyclictest0-21swapper/122:46:211
3271299110,2cyclictest0-21swapper/121:10:291
3271299110,10cyclictest0-21swapper/123:48:401
3271299110,10cyclictest0-21swapper/123:09:401
3271199112,6cyclictest0-21swapper/019:46:020
144632110,2sleep10-21swapper/123:50:151
3271699107,2cyclictest0-21swapper/220:31:042
3271699107,2cyclictest0-21swapper/220:04:012
3271699101,5cyclictest0-21swapper/220:25:112
3271299107,2cyclictest2152-21kworker/u8:220:55:041
3271299107,2cyclictest20809-21ls23:56:011
3271299107,2cyclictest11775-21kworker/u8:119:45:041
3271299101,8cyclictest488-21apt-get19:10:101
3271299101,2cyclictest25326-21pzem_energy22:55:281
3271299100,9cyclictest0-21swapper/100:01:041
3271299100,8cyclictest4639-21munin-node1
3271299100,8cyclictest0-21swapper/121:05:151
3271299100,8cyclictest0-21swapper/119:30:161
3271299100,2cyclictest16778-21apt-get19:50:111
3271299100,2cyclictest12755-21munin-node1
3271199100,2cyclictest0-21swapper/020:23:360
327169994,3cyclictest15005-21cpuspeed_turbos19:45:142
327169994,3cyclictest0-21swapper/220:35:132
327129996,2cyclictest221ktimersoftd/120:10:111
327129994,3cyclictest6783-21aten2.4_r3power20:45:131
327129990,8cyclictest0-21swapper/119:15:121
327129990,2cyclictest16491-21diskmemload23:25:391
327129990,2cyclictest0-21swapper/121:00:131
327129990,2cyclictest0-21swapper/120:25:111
327129990,2cyclictest0-21swapper/120:15:001
327129990,2cyclictest0-21swapper/119:55:121
327129985,2cyclictest0-21swapper/120:50:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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