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2026-08-23 - 04:12

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 Sun Aug 23, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74002117106,6sleep30-21swapper/319:09:413
7412210986,18sleep00-21swapper/019:09:490
5630210987,16sleep10-21swapper/119:05:011
6696210584,16sleep20-21swapper/219:05:472
241892860,0sleep20-21swapper/222:15:282
326582750,1sleep30-21swapper/323:30:443
215762750,0sleep10-21swapper/122:13:181
11362720,0sleep20-21swapper/200:39:512
109012690,1sleep2301ktimersoftd/219:16:032
7455992822,2cyclictest8876-21kworker/u8:023:47:041
7455992522,2cyclictest26534-21kworker/u8:023:28:011
142712230,1sleep214277-21fschecks_time23:45:152
7457992219,2cyclictest22968-21kworker/u8:222:18:043
7457992219,2cyclictest18029-21kworker/u8:000:37:033
7457992118,2cyclictest9593-21kworker/u8:023:12:043
7457992118,2cyclictest10489-21kworker/u8:022:33:053
745699210,15cyclictest0-21swapper/221:43:042
7455992118,2cyclictest28338-21kworker/u8:122:42:011
7455992118,2cyclictest24307-21kworker/u8:221:45:051
248262210,1sleep10-21swapper/121:43:521
7457992017,2cyclictest24307-21kworker/u8:222:07:053
745799200,18cyclictest0-21swapper/323:47:053
745699201,2cyclictest0-21swapper/223:25:112
745599202,16cyclictest3428-21kworker/u8:123:12:051
7455992017,2cyclictest7039-21kworker/u8:000:12:021
745599200,18cyclictest0-21swapper/122:33:041
745499200,2cyclictest0-21swapper/023:25:110
7457991916,2cyclictest3428-21kworker/u8:123:18:043
745799190,2cyclictest0-21swapper/323:28:013
7455991916,2cyclictest8003-21kworker/u8:021:38:041
7455991916,2cyclictest17887-21kworker/u8:222:50:011
7455991915,2cyclictest28238-21kworker/u8:000:01:051
745599190,2cyclictest0-21swapper/122:18:041
7457991815,2cyclictest8003-21kworker/u8:021:27:043
7457991815,2cyclictest28238-21kworker/u8:000:03:043
7457991815,2cyclictest21327-21kworker/u8:119:46:013
7457991815,2cyclictest17887-21kworker/u8:222:42:053
7455991815,2cyclictest8003-21kworker/u8:021:26:041
7455991815,2cyclictest21064-21kworker/u8:223:37:051
7455991815,2cyclictest20506-21kworker/u8:123:52:041
7455991815,2cyclictest10489-21kworker/u8:022:02:041
7457991714,2cyclictest8003-21kworker/u8:021:42:023
7457991714,2cyclictest24307-21kworker/u8:221:57:043
7457991714,2cyclictest24307-21kworker/u8:221:49:043
7455991714,2cyclictest28338-21kworker/u8:122:23:051
7455991714,2cyclictest27249-21kworker/u8:121:23:051
7455991714,2cyclictest18029-21kworker/u8:000:37:071
7455991714,2cyclictest17887-21kworker/u8:222:49:051
745599171,14cyclictest356-21apt-get00:05:121
745599170,2cyclictest0-21swapper/122:07:041
745599170,15cyclictest0-21swapper/119:46:011
7457991613,2cyclictest8876-21kworker/u8:023:42:043
7457991613,2cyclictest3428-21kworker/u8:123:05:043
7457991613,2cyclictest3245-21kworker/u8:219:16:053
7457991613,2cyclictest20506-21kworker/u8:100:09:043
7457991613,2cyclictest17887-21kworker/u8:223:00:053
7457991613,2cyclictest17435-21kworker/u8:021:11:043
7457991613,2cyclictest1618-21kworker/u8:121:54:043
7457991613,2cyclictest10489-21kworker/u8:022:03:043
745799161,13cyclictest19000-21munin-node3
745799160,2cyclictest28360-21fschecks_time20:00:163
745699162,8cyclictest22749-21ssh22:15:002
7456991611,3cyclictest23520-21diskmemload22:25:172
745699161,13cyclictest0-21swapper/221:00:152
7455991613,2cyclictest9593-21kworker/u8:023:16:041
7455991613,2cyclictest8003-21kworker/u8:021:34:051
7455991613,2cyclictest3428-21kworker/u8:123:20:041
7455991613,2cyclictest24053-21kworker/u8:200:33:041
745599161,13cyclictest11303-21sh23:09:291
745599161,13cyclictest0-21swapper/119:36:031
745599160,2cyclictest0-21swapper/123:32:011
745499161,3cyclictest15984-21grep20:50:120
7457991512,2cyclictest7039-21kworker/u8:000:13:053
7457991512,2cyclictest3245-21kworker/u8:219:11:043
7457991512,2cyclictest28338-21kworker/u8:122:26:053
7457991512,2cyclictest23530-21kworker/u8:220:36:053
7457991512,2cyclictest17887-21kworker/u8:222:48:013
7457991512,2cyclictest17435-21kworker/u8:021:18:053
745799150,13cyclictest0-21swapper/322:50:013
745799150,13cyclictest0-21swapper/320:40:133
745699151,3cyclictest0-21swapper/223:20:492
745699151,12cyclictest31295-21sendmail-mta22:24:322
7456991510,3cyclictest14351-21munin-node2
7456991510,3cyclictest0-21swapper/220:20:182
745699150,13cyclictest0-21swapper/223:53:172
745699150,13cyclictest0-21swapper/221:38:582
745599151,2cyclictest14237-21perl19:25:141
7455991512,2cyclictest353-21aten2.4_r3power22:25:121
7455991512,2cyclictest3428-21kworker/u8:123:04:011
7455991512,2cyclictest28780-21kworker/u8:022:58:041
7455991512,2cyclictest24307-21kworker/u8:221:50:041
7455991512,2cyclictest21064-21kworker/u8:223:57:041
7455991512,2cyclictest17435-21kworker/u8:021:10:041
7455991512,2cyclictest0-21swapper/121:16:221
745599151,12cyclictest9464-21munin-run19:15:001
745599150,13cyclictest0-21swapper/119:16:051
745499150,2cyclictest15909-21missed_timers00:20:180
7457991411,2cyclictest23530-21kworker/u8:220:21:043
7457991411,2cyclictest17435-21kworker/u8:021:20:013
7457991411,2cyclictest17435-21kworker/u8:020:57:043
7457991411,2cyclictest10489-21kworker/u8:022:24:043
7457991411,2cyclictest0-21swapper/322:35:353
745799140,2cyclictest11706-21apt-get19:20:103
745799140,2cyclictest11706-21apt-get19:20:103
745799140,12cyclictest0-21swapper/323:55:443
745699142,6cyclictest0-21swapper/220:15:002
745699142,6cyclictest0-21swapper/220:10:002
745699141,7cyclictest17820-21copy22:10:002
745699141,2cyclictest14869-21ssh23:12:282
745699141,2cyclictest0-21swapper/221:15:302
7456991411,2cyclictest0-21swapper/222:50:412
745699141,11cyclictest0-21swapper/221:46:482
745699141,11cyclictest0-21swapper/219:55:122
745699140,3cyclictest22044-21expr19:45:132
745699140,2cyclictest22253-21ssh22:46:182
745699140,2cyclictest0-21swapper/223:35:072
745699140,13cyclictest0-21swapper/221:20:162
745699140,13cyclictest0-21swapper/200:16:572
745699140,12cyclictest26117-21ssh23:57:192
745699140,12cyclictest0-21swapper/223:33:292
745699140,12cyclictest0-21swapper/200:01:052
7455991411,2cyclictest9140-21kworker/u8:120:45:041
7455991411,2cyclictest24307-21kworker/u8:221:56:051
7455991411,2cyclictest23530-21kworker/u8:220:25:041
7455991411,2cyclictest17435-21kworker/u8:020:58:051
7455991411,2cyclictest0-21swapper/123:41:581
7455991411,2cyclictest0-21swapper/100:25:431
745599141,11cyclictest0-21swapper/120:20:181
745599140,2cyclictest0-21swapper/100:21:021
745499140,12cyclictest0-21swapper/023:01:040
7457991310,2cyclictest20506-21kworker/u8:123:54:043
7457991310,2cyclictest11740-21kworker/u8:119:28:023
7457991310,2cyclictest0-21swapper/323:36:233
745799130,2cyclictest0-21swapper/321:38:043
745799130,12cyclictest0-21swapper/323:21:153
745799130,12cyclictest0-21swapper/322:55:143
745799130,12cyclictest0-21swapper/322:10:063
745799130,12cyclictest0-21swapper/321:32:243
7456991310,2cyclictest5552-21ssh21:56:202
7456991310,2cyclictest0-21swapper/223:40:112
7456991310,2cyclictest0-21swapper/222:40:212
7456991310,2cyclictest0-21swapper/222:35:372
7456991310,2cyclictest0-21swapper/221:31:172
7456991310,2cyclictest0-21swapper/200:12:202
745699130,2cyclictest6712-21ssh22:30:382
745699130,2cyclictest23200-21ssh00:28:382
745699130,12cyclictest0-21swapper/200:31:572
745699130,11cyclictest0-21swapper/223:02:072
7455991310,2cyclictest0-21swapper/122:36:401
7455991310,2cyclictest0-21swapper/120:54:461
7455991310,2cyclictest0-21swapper/120:16:021
7455991310,2cyclictest0-21swapper/120:00:171
745599130,2cyclictest0-21swapper/121:00:201
745599130,12cyclictest0-21swapper/120:31:031
745599130,12cyclictest0-21swapper/100:17:101
745499131,6cyclictest0-21swapper/020:05:000
745499130,2cyclictest19424-21ssh23:50:170
745499130,12cyclictest0-21swapper/023:35:280
745499130,11cyclictest0-21swapper/020:31:030
264232130,2sleep30-21swapper/300:31:103
225812130,2sleep023520-21diskmemload00:27:430
159752130,2sleep00-21swapper/023:46:290
159012130,1sleep20-21swapper/200:20:182
124022130,2sleep00-21swapper/022:04:160
80372120,1sleep00-21swapper/022:32:020
745799129,2cyclictest9140-21kworker/u8:121:00:043
745799129,2cyclictest23530-21kworker/u8:220:18:023
745799129,2cyclictest17425-21kworker/u8:219:40:043
745799129,2cyclictest17425-21kworker/u8:219:34:043
745799129,2cyclictest0-21swapper/320:53:343
745799129,2cyclictest0-21swapper/320:26:063
745799129,2cyclictest0-21swapper/300:17:443
745799120,2cyclictest0-21swapper/300:25:343
745799120,11cyclictest0-21swapper/320:45:203
745799120,11cyclictest0-21swapper/319:51:043
745799120,11cyclictest0-21swapper/300:21:553
745699129,2cyclictest0-21swapper/223:15:012
745699129,2cyclictest0-21swapper/222:56:192
745699129,2cyclictest0-21swapper/221:54:012
745699129,2cyclictest0-21swapper/220:15:172
745699129,2cyclictest0-21swapper/219:40:192
745699129,2cyclictest0-21swapper/200:05:512
745699122,7cyclictest0-21swapper/220:34:582
745699120,2cyclictest0-21swapper/222:00:392
745699120,11cyclictest0-21swapper/223:09:512
745699120,11cyclictest0-21swapper/221:25:092
745699120,11cyclictest0-21swapper/221:10:172
745699120,11cyclictest0-21swapper/219:25:182
745599129,2cyclictest9140-21kworker/u8:120:35:041
745599129,2cyclictest27354-21kworker/u8:120:13:041
745599129,2cyclictest11740-21kworker/u8:119:33:041
745599129,2cyclictest0-21swapper/121:05:141
745599121,9cyclictest29817-21munin-node1
745599121,9cyclictest0-21swapper/119:40:111
745599120,2cyclictest0-21swapper/120:40:421
745599120,11cyclictest0-21swapper/119:50:181
745499129,2cyclictest24733-1kworker/u9:221:45:150
745499122,6cyclictest0-21swapper/020:26:010
745499121,9cyclictest22150irq/25-ahci[00021:25:010
745499120,2cyclictest0-21swapper/023:10:170
745499120,2cyclictest0-21swapper/021:50:130
745499120,2cyclictest0-21swapper/021:40:160
745499120,2cyclictest0-21swapper/020:21:020
745499120,11cyclictest0-21swapper/022:55:140
745499120,11cyclictest0-21swapper/000:11:030
745499120,10cyclictest23520-21diskmemload23:21:270
40742120,1sleep0101ktimersoftd/022:28:360
26942120,9sleep02704-21ssh23:33:550
745799118,2cyclictest23530-21kworker/u8:220:05:043
745599118,2cyclictest0-21swapper/119:20:171
745599118,2cyclictest0-21swapper/119:20:161
745599111,9cyclictest0-21swapper/119:55:121
745499118,2cyclictest0-21swapper/022:40:470
745499118,2cyclictest0-21swapper/022:07:270
745499116,3cyclictest16169-21cut19:30:150
745499112,4cyclictest0-21swapper/020:50:000
745499111,6cyclictest0-21swapper/020:15:000
745499111,6cyclictest0-21swapper/019:30:000
745499111,5cyclictest0-21swapper/019:40:000
745499110,9cyclictest0-21swapper/021:22:210
745499110,9cyclictest0-21swapper/000:00:390
60242110,2sleep00-21swapper/021:57:030
282012110,2sleep20-21swapper/220:00:152
255562110,1sleep00-21swapper/019:55:000
238202110,1sleep00-21swapper/021:10:090
217892110,8sleep00-21swapper/022:13:390
181852110,1sleep00-21swapper/021:36:140
745799107,2cyclictest9140-21kworker/u8:120:32:043
745799107,2cyclictest27354-21kworker/u8:120:12:043
745799107,2cyclictest17435-21kworker/u8:021:05:053
745699107,2cyclictest0-21swapper/219:50:012
745699105,3cyclictest23113-21grep21:06:052
745699102,7cyclictest0-21swapper/220:44:022
745699100,6cyclictest0-21swapper/219:35:512
745499107,2cyclictest0-21swapper/023:44:310
745499107,2cyclictest0-21swapper/021:00:150
745499107,2cyclictest0-21swapper/000:17:060
745499105,3cyclictest30183-21ntpq00:35:180
745499105,3cyclictest29975-21head20:05:140
745499105,3cyclictest1785-21grep20:15:140
745499103,6cyclictest0-21swapper/019:15:010
745499102,7cyclictest3127-21nscd23:15:080
745499101,6cyclictest0-21swapper/019:50:540
745499101,3cyclictest21560-21latency_hist19:45:010
745499100,9cyclictest0-21swapper/023:06:590
745499100,9cyclictest0-21swapper/022:35:280
745499100,9cyclictest0-21swapper/022:21:010
745499100,9cyclictest0-21swapper/021:05:150
745499100,6cyclictest0-21swapper/021:31:150
745499100,2cyclictest23520-21diskmemload00:08:420
745499100,2cyclictest0-21swapper/021:18:040
259052100,7sleep00-21swapper/022:17:270
193962100,1sleep00-21swapper/020:59:000
74579996,2cyclictest0-21swapper/319:55:123
74569994,3cyclictest8765-21wc19:11:022
74569994,3cyclictest18142-21cut20:55:142
74569994,3cyclictest15683-21munin-node2
74569994,3cyclictest12656-21processes19:20:192
74569994,3cyclictest12656-21processes19:20:182
74569992,6cyclictest0-21swapper/220:25:012
74569991,3cyclictest0-21swapper/220:35:132
74569990,7cyclictest0-21swapper/219:33:412
74549996,2cyclictest0-21swapper/023:55:170
74549994,3cyclictest0-21swapper/022:50:160
74549990,8cyclictest0-21swapper/022:46:340
74549990,8cyclictest0-21swapper/019:25:010
74549990,8cyclictest0-21swapper/019:25:000
74549990,6cyclictest0-21swapper/020:41:020
74549984,3cyclictest9756-21aten2.4_r3power19:15:130
74549984,2cyclictest23520-21diskmemload00:30:150
74549983,3cyclictest9775-21cpu20:35:130
74549980,6cyclictest22767-21sshd19:45:210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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