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2026-07-13 - 22:49

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 376 highest latencies:
System rack3slot6s.osadl.org (updated Mon Jul 13, 2026 12:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16821211993,18sleep30-21swapper/307:05:133
18423211493,16sleep00-21swapper/007:07:460
18176211293,12sleep20-21swapper/207:06:042
17839211195,11sleep10-21swapper/107:05:311
191102740,1sleep3381ktimersoftd/311:40:153
133322740,0sleep10-21swapper/112:08:021
118752730,1sleep20-21swapper/210:59:572
1862399312,26cyclictest0-21swapper/007:50:130
1862699300,2cyclictest0-21swapper/308:40:103
1862699246,17cyclictest0-21swapper/307:10:113
1862599221,19cyclictest0-21swapper/208:45:122
18625992117,2cyclictest0-21swapper/209:00:122
1862599210,2cyclictest0-21swapper/209:25:002
1862599210,19cyclictest0-21swapper/207:50:132
1862599210,12cyclictest24894-21ssh10:05:252
217582200,0sleep10-21swapper/110:35:391
1862599207,3cyclictest2545-21diskmemload09:55:002
1862599200,3cyclictest0-21swapper/210:47:022
1862599200,2cyclictest0-21swapper/210:30:392
18623992015,3cyclictest12883-21kworker/u8:009:54:040
1862399200,18cyclictest0-21swapper/008:10:100
1862599198,2cyclictest0-21swapper/210:25:402
18625991910,2cyclictest30586-21ssh11:51:552
18625991910,2cyclictest0-21swapper/212:16:282
18625991910,2cyclictest0-21swapper/211:25:022
18625991910,2cyclictest0-21swapper/209:33:482
18625991910,2cyclictest0-21swapper/209:11:452
1862599190,2cyclictest2545-21diskmemload11:33:052
1862599190,2cyclictest0-21swapper/212:00:472
1862599190,2cyclictest0-21swapper/211:16:172
1862599190,2cyclictest0-21swapper/209:42:252
1862599190,11cyclictest27409-21sh12:22:522
189522180,1sleep20-21swapper/208:30:002
1862599189,2cyclictest0-21swapper/209:58:092
1862599188,2cyclictest0-21swapper/210:50:572
1862599188,2cyclictest0-21swapper/207:40:062
18625991810,2cyclictest0-21swapper/211:05:272
18625991810,2cyclictest0-21swapper/210:13:352
1862599180,2cyclictest0-21swapper/212:30:202
1862599180,2cyclictest0-21swapper/211:46:272
1862599180,12cyclictest0-21swapper/211:35:392
1862599180,12cyclictest0-21swapper/209:18:402
1862599180,11cyclictest0-21swapper/212:29:342
1862399189,5cyclictest11-21rcuc/012:20:050
62932170,0sleep30-21swapper/309:46:033
1862699173,12cyclictest30683-21kworker/u8:111:22:443
1862599179,2cyclictest2545-21diskmemload11:21:522
1862599178,2cyclictest0-21swapper/210:37:272
1862599178,2cyclictest0-21swapper/207:55:192
1862599175,3cyclictest9861-21ntp_states08:05:192
18625991710,2cyclictest0-21swapper/209:35:372
1862599170,2cyclictest0-21swapper/211:44:382
1862599170,2cyclictest0-21swapper/210:44:102
1862599170,2cyclictest0-21swapper/208:30:512
1862599170,11cyclictest0-21swapper/207:20:132
1862499172,5cyclictest13801-21copy09:55:001
18623991714,2cyclictest1378-21ssh12:30:130
72092160,0sleep00-21swapper/009:47:160
1862599169,2cyclictest0-21swapper/211:14:112
1862599169,2cyclictest0-21swapper/211:01:312
1862599162,7cyclictest0-21swapper/209:47:582
1862599161,6cyclictest0-21swapper/208:57:512
1862599161,13cyclictest9217-21ssh10:23:062
1862599160,11cyclictest0-21swapper/212:11:362
1862599160,11cyclictest0-21swapper/212:09:012
1862599160,11cyclictest0-21swapper/210:15:242
1862599160,10cyclictest2625-21ssh11:56:302
1862499161,3cyclictest0-21swapper/112:25:021
1862499161,13cyclictest9267-21apt-get09:50:111
1862499161,13cyclictest0-21swapper/111:11:061
1862499160,2cyclictest0-21swapper/109:31:051
1862499160,14cyclictest0-21swapper/109:15:261
1862499160,14cyclictest0-21swapper/107:15:161
18623991613,2cyclictest21328-21kworker/u8:009:30:050
18623991612,2cyclictest8747-21turbostat08:05:000
18623991611,3cyclictest10879-21kworker/u8:011:34:040
313602150,2sleep00-21swapper/009:39:360
1862699151,3cyclictest0-21swapper/312:25:173
18626991512,2cyclictest0-21swapper/312:18:223
18626991512,2cyclictest0-21swapper/310:58:413
18626991512,2cyclictest0-21swapper/307:55:193
1862699151,12cyclictest0-21swapper/309:25:173
18626991510,4cyclictest0-21swapper/311:03:463
1862699150,14cyclictest0-21swapper/308:35:113
1862699150,13cyclictest0-21swapper/309:37:423
1862699150,13cyclictest0-21swapper/309:15:203
18625991510,3cyclictest10753-21apt-get08:10:052
1862499152,7cyclictest0-21swapper/111:30:001
1862499152,7cyclictest0-21swapper/109:05:011
1862499152,6cyclictest0-21swapper/112:20:011
1862499151,3cyclictest0-21swapper/112:04:101
1862499151,3cyclictest0-21swapper/110:56:571
18624991512,2cyclictest0-21swapper/112:13:301
1862499151,12cyclictest28805-21iostat11:50:181
18624991510,3cyclictest0-21swapper/110:01:391
1862499150,13cyclictest0-21swapper/110:46:031
18623991512,2cyclictest30672-21kworker/u8:011:52:050
18623991512,2cyclictest25284-21ssh10:40:090
18623991512,2cyclictest21328-21kworker/u8:009:29:040
18623991512,2cyclictest17469-21taskset12:12:040
1862399150,10cyclictest0-21swapper/011:37:040
32282140,2sleep00-21swapper/011:24:310
1862699148,4cyclictest5491-21aten2.4_r3power12:00:113
1862699141,2cyclictest0-21swapper/311:16:463
18626991411,2cyclictest0-21swapper/312:12:513
18626991411,2cyclictest0-21swapper/311:55:213
18626991411,2cyclictest0-21swapper/311:46:103
1862699141,12cyclictest0-21swapper/310:46:063
18626991411,2cyclictest0-21swapper/310:43:423
1862699141,12cyclictest0-21swapper/309:32:123
18626991410,3cyclictest0-21swapper/312:20:123
18626991410,3cyclictest0-21swapper/311:29:323
1862699140,3cyclictest2545-21diskmemload09:44:483
1862699140,2cyclictest0-21swapper/309:50:133
1862699140,13cyclictest0-21swapper/312:06:213
1862699140,12cyclictest0-21swapper/310:35:103
1862699140,12cyclictest0-21swapper/310:20:133
1862699140,12cyclictest0-21swapper/307:40:123
1862599141,11cyclictest737-21apt-get07:45:122
1862599140,13cyclictest0-21swapper/208:40:102
1862499144,7cyclictest4562-21gdm-simple-gree10:53:581
1862499142,7cyclictest28730-21apt-get07:35:001
18624991411,2cyclictest0-21swapper/112:23:301
18624991411,2cyclictest0-21swapper/110:13:191
18624991411,2cyclictest0-21swapper/107:55:191
1862499140,3cyclictest0-21swapper/112:31:051
1862499140,2cyclictest0-21swapper/111:05:391
1862499140,12cyclictest19201-21sh10:33:351
1862499140,12cyclictest0-21swapper/111:59:451
1862499140,12cyclictest0-21swapper/111:40:261
1862499140,12cyclictest0-21swapper/109:35:291
18623991411,2cyclictest17339-21kworker/u8:311:46:040
18623991411,2cyclictest16750-21kworker/u8:011:08:040
1862399141,11cyclictest2545-21diskmemload11:10:150
18623991410,2cyclictest16833-21apt-get08:25:070
1862399140,12cyclictest0-21swapper/009:18:050
179252140,2sleep00-21swapper/010:31:390
94912130,2sleep00-21swapper/012:04:340
219952130,2sleep00-21swapper/012:16:480
1862699139,3cyclictest13644-21ssh10:27:313
1862699133,9cyclictest0-21swapper/311:06:093
1862699132,10cyclictest0-21swapper/309:24:163
1862699131,1cyclictest0-21swapper/310:15:103
1862699131,1cyclictest0-21swapper/309:13:003
1862699131,11cyclictest0-21swapper/312:32:203
18626991310,2cyclictest2545-21diskmemload10:00:123
1862699130,3cyclictest0-21swapper/311:54:023
1862699130,2cyclictest0-21swapper/309:05:123
1862699130,2cyclictest0-21swapper/308:25:173
1862599132,8cyclictest0-21swapper/207:31:582
18625991310,2cyclictest0-21swapper/210:02:412
1862599130,12cyclictest0-21swapper/209:25:272
1862499131,3cyclictest0-21swapper/108:15:171
1862499131,10cyclictest3728-21runrttasks12:35:131
18624991310,2cyclictest2545-21diskmemload11:21:101
18624991310,2cyclictest0-21swapper/111:35:151
18624991310,2cyclictest0-21swapper/111:15:171
18624991310,2cyclictest0-21swapper/110:40:171
18624991310,2cyclictest0-21swapper/110:17:071
18624991310,2cyclictest0-21swapper/109:46:591
18624991310,2cyclictest0-21swapper/109:26:131
18624991310,2cyclictest0-21swapper/108:40:131
18624991310,2cyclictest0-21swapper/107:40:011
1862499130,4cyclictest12645-21unixbench_multi10:26:051
1862499130,2cyclictest0-21swapper/111:30:411
1862499130,12cyclictest0-21swapper/109:44:261
18623991310,2cyclictest19038-21kworker/u8:210:15:040
18623991310,2cyclictest10675-21kworker/u8:109:24:040
18623991310,2cyclictest0-21swapper/010:05:150
1862399130,8cyclictest0-21swapper/009:07:040
1862399130,11cyclictest0-21swapper/012:35:250
1862399130,11cyclictest0-21swapper/009:11:150
48452120,9sleep00-21swapper/011:25:180
1862699129,2cyclictest2545-21diskmemload10:30:563
1862699129,2cyclictest0-21swapper/312:35:133
1862699121,1cyclictest0-21swapper/308:55:193
1862699120,2cyclictest0-21swapper/310:53:263
1862699120,2cyclictest0-21swapper/307:50:003
1862699120,11cyclictest0-21swapper/308:20:133
1862699120,11cyclictest0-21swapper/307:30:193
1862599122,7cyclictest0-21swapper/208:37:012
1862599121,5cyclictest0-21swapper/207:20:002
1862499129,2cyclictest0-21swapper/109:10:091
1862499129,2cyclictest0-21swapper/108:20:191
1862499129,2cyclictest0-21swapper/107:45:141
1862499121,9cyclictest8407-21head08:01:051
1862499121,9cyclictest27161-21munin-node1
1862499121,9cyclictest24886-21munin-node1
1862499121,9cyclictest22873-21munin-node1
1862499121,9cyclictest21113-21munin-node1
1862499121,9cyclictest18838-21apt-get07:10:121
1862499121,9cyclictest0-21swapper/108:45:201
1862499121,3cyclictest31199-21munin-node1
1862499120,2cyclictest0-21swapper/109:20:311
1862499120,2cyclictest0-21swapper/107:35:161
1862499120,11cyclictest0-21swapper/111:46:021
1862499120,11cyclictest0-21swapper/111:00:151
1862499120,11cyclictest0-21swapper/110:20:271
1862499120,11cyclictest0-21swapper/110:07:181
1862499120,11cyclictest0-21swapper/108:11:021
1862499120,10cyclictest0-21swapper/108:55:151
1862399129,2cyclictest8478-21kworker/u8:110:23:040
1862399129,2cyclictest582-21kworker/u8:110:48:050
1862399129,2cyclictest32158-21kworker/u8:012:29:040
1862399129,2cyclictest30672-21kworker/u8:012:05:040
1862399129,2cyclictest29095-21kworker/u8:007:36:010
1862399129,2cyclictest20915-21kworker/u8:107:47:040
1862399129,2cyclictest19186-21kworker/u8:209:02:040
1862399129,2cyclictest19186-21kworker/u8:208:44:040
1862399129,2cyclictest10879-21kworker/u8:011:42:040
1862399129,2cyclictest0-21swapper/007:40:250
1862399122,7cyclictest0-21swapper/009:43:580
1862399122,7cyclictest0-21swapper/008:47:580
1862399120,2cyclictest0-21swapper/008:15:140
1862399120,10cyclictest2545-21diskmemload10:01:150
164842120,2sleep00-21swapper/009:56:430
265732110,2sleep00-21swapper/011:15:040
1862699118,2cyclictest0-21swapper/311:10:523
1862699118,2cyclictest0-21swapper/310:08:213
1862699118,2cyclictest0-21swapper/308:00:203
1862699115,4cyclictest14539-21ssh09:55:153
1862699115,4cyclictest12441-21grep08:11:023
1862699113,7cyclictest0-21swapper/308:51:053
1862699113,6cyclictest15694-21ssh11:36:133
1862699111,6cyclictest0-21swapper/307:21:013
1862699110,2cyclictest0-21swapper/310:11:263
1862699110,10cyclictest0-21swapper/311:33:083
1862599118,2cyclictest0-21swapper/208:23:382
1862599118,2cyclictest0-21swapper/207:26:042
1862599112,6cyclictest7829-21mailstats12:36:022
1862499111,8cyclictest0-21swapper/108:05:141
1862499111,2cyclictest17081-21apt-get08:25:131
1862499110,1cyclictest0-21swapper/108:30:191
1862499110,10cyclictest0-21swapper/107:50:521
1862399118,2cyclictest3442-21kworker/u8:010:25:040
1862399116,3cyclictest23000-21tail07:20:120
1862399113,6cyclictest0-21swapper/007:56:030
1862399110,6cyclictest0-21swapper/007:32:040
1862699107,2cyclictest0-21swapper/308:30:123
1862699104,4cyclictest3728-21runrttasks08:15:133
1862699104,4cyclictest31615-21uniq09:00:163
1862699104,4cyclictest30386-21sed07:36:033
1862699104,4cyclictest25272-21basename08:45:133
1862699103,5cyclictest9329-21df_abs08:05:143
1862699103,5cyclictest2761-21aten2.4_r3power07:50:133
1862699103,5cyclictest24930-21basename07:25:133
1862699103,5cyclictest20888-21aten2.4_r3power07:15:143
1862599102,7cyclictest0-21swapper/208:04:012
1862399107,2cyclictest28505-21ssh10:10:050
1862399107,2cyclictest27502-21kworker/u8:210:59:050
1862399107,2cyclictest0-21swapper/008:31:020
1862399105,3cyclictest1071-21hwlatdetect11:55:160
1862399102,7cyclictest0-21swapper/008:39:580
1862399102,5cyclictest0-21swapper/008:23:010
1862399102,5cyclictest0-21swapper/007:17:580
186259994,3cyclictest3728-21runrttasks08:52:462
186259994,3cyclictest18605-21sh07:10:002
186259994,3cyclictest14135-21grep08:16:022
186259994,3cyclictest1066-21df_abs09:05:142
186259990,7cyclictest0-21swapper/207:39:552
186239996,2cyclictest9122-21kworker/u8:108:08:040
186239996,2cyclictest2545-21diskmemload10:50:360
186239996,2cyclictest24888-21kworker/u8:008:54:040
186239994,3cyclictest25768-21grep07:25:190
186239992,6cyclictest2545-21diskmemload10:36:000
186239985,2cyclictest29299-21telnet08:55:130
186239983,3cyclictest19113-21tr07:10:120
186239980,2cyclictest0-21swapper/011:00:040
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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