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2026-05-09 - 03:01

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 Sat May 09, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2773721230,5sleep12665399cyclictest23:12:361
26578211099,6sleep30-21swapper/319:09:223
26416210897,6sleep00-21swapper/019:07:160
25237210483,13sleep20-21swapper/219:05:132
26539210281,16sleep10-21swapper/119:08:531
27962850,1sleep10-21swapper/120:50:121
252572760,2sleep225261-21kernelversion00:20:152
105802750,0sleep30-21swapper/321:44:483
47512740,0sleep00-21swapper/019:35:110
203152740,0sleep10-21swapper/100:15:141
231542700,0sleep00-21swapper/023:43:220
139062680,0sleep00-21swapper/000:08:120
194162260,0sleep20-21swapper/221:19:302
119752260,0sleep30-21swapper/321:10:303
165592240,0sleep10-21swapper/121:15:291
2665299220,2cyclictest0-21swapper/021:55:090
194372210,0sleep00-21swapper/021:54:080
313422200,0sleep0101ktimersoftd/000:26:300
2665399200,18cyclictest0-21swapper/121:40:101
26654991916,2cyclictest27027-21kworker/u8:019:47:052
26654991815,2cyclictest6407-21kworker/u8:022:17:052
26654991815,2cyclictest4698-21kworker/u8:223:49:042
26654991815,2cyclictest22908-21kworker/u8:120:31:052
26654991815,2cyclictest14332-21kworker/u8:023:38:052
26654991815,2cyclictest10730-21kworker/u8:121:38:052
26652991815,2cyclictest10730-21kworker/u8:121:28:050
2665499172,2cyclictest0-21swapper/222:32:042
26654991714,2cyclictest8941-21kworker/u8:223:11:042
26654991714,2cyclictest6407-21kworker/u8:021:56:042
26654991714,2cyclictest4741-21kworker/u8:219:40:052
26654991714,2cyclictest27027-21kworker/u8:020:12:052
26654991714,2cyclictest27027-21kworker/u8:019:52:052
26654991714,2cyclictest27027-21kworker/u8:019:11:052
26654991714,2cyclictest22908-21kworker/u8:120:35:052
26654991714,2cyclictest13875-21kworker/u8:122:00:052
2665299170,2cyclictest0-21swapper/022:42:050
2665599162,7cyclictest0-21swapper/322:22:593
2665499161,3cyclictest0-21swapper/221:20:132
26654991613,2cyclictest4698-21kworker/u8:223:28:022
26654991613,2cyclictest30905-21kworker/u8:221:00:052
26654991613,2cyclictest30905-21kworker/u8:220:46:062
26654991613,2cyclictest28000-21kworker/u8:222:06:042
26654991613,2cyclictest26935-21kworker/u8:000:38:042
26654991613,2cyclictest24520-21kworker/u8:219:24:012
26654991613,2cyclictest1996-21kworker/u8:119:29:052
2665499161,13cyclictest12998-21ssh22:21:082
2665399161,13cyclictest0-21swapper/123:15:111
2665399160,2cyclictest0-21swapper/122:42:051
2665599151,3cyclictest12144-21sh00:05:553
26654991512,2cyclictest3230-21kworker/u8:200:08:052
26654991512,2cyclictest30355-21kworker/u8:000:11:042
26654991512,2cyclictest27027-21kworker/u8:020:15:052
26654991512,2cyclictest26935-21kworker/u8:000:26:052
26654991512,2cyclictest22908-21kworker/u8:120:25:042
26654991512,2cyclictest1996-21kworker/u8:119:34:012
2665499150,3cyclictest23812-21sh23:44:282
2665499150,3cyclictest11368-21latency23:30:172
2665499150,2cyclictest0-21swapper/223:20:042
2665499150,14cyclictest0-21swapper/223:05:052
2665499150,14cyclictest0-21swapper/222:48:052
2665499150,14cyclictest0-21swapper/200:02:052
26653991511,3cyclictest24432-21turbostat21:29:561
2665399151,12cyclictest3728-21runrttasks00:26:031
26653991511,2cyclictest10471-21diskmemload22:20:051
26653991510,3cyclictest23023-21sh23:07:321
26653991510,3cyclictest14800-21copy23:35:011
2665399150,2cyclictest0-21swapper/123:46:011
2665399150,2cyclictest0-21swapper/123:04:421
2665399150,13cyclictest0-21swapper/123:40:051
2665399150,13cyclictest0-21swapper/100:30:171
26652991510,3cyclictest16798-21aten2.4_r3power20:05:120
268442140,2sleep00-21swapper/022:36:040
2665599142,6cyclictest0-21swapper/323:55:013
26654991410,2cyclictest0-21swapper/222:25:132
2665499140,2cyclictest0-21swapper/223:16:052
2665499140,2cyclictest0-21swapper/222:56:042
2665499140,2cyclictest0-21swapper/221:26:062
2665499140,2cyclictest0-21swapper/220:22:052
2665499140,2cyclictest0-21swapper/220:22:042
2665499140,13cyclictest0-21swapper/223:57:052
2665499140,13cyclictest0-21swapper/220:52:012
2665399143,3cyclictest3259-21wc22:11:021
2665399142,7cyclictest0-21swapper/120:45:011
26653991411,2cyclictest0-21swapper/122:16:021
26653991411,2cyclictest0-21swapper/121:56:311
26653991411,2cyclictest0-21swapper/100:01:111
26653991410,2cyclictest26355-21ssh22:00:541
2665399140,2cyclictest0-21swapper/123:58:221
2665399140,2cyclictest0-21swapper/122:55:411
2665399140,2cyclictest0-21swapper/122:31:411
2665399140,13cyclictest15730-21ssh21:50:121
2665399140,13cyclictest0-21swapper/123:51:521
2665399140,13cyclictest0-21swapper/120:05:111
2665399140,12cyclictest0-21swapper/121:35:041
2665399140,12cyclictest0-21swapper/119:50:501
26652991411,2cyclictest29561-21kworker/u8:122:53:050
26652991410,2cyclictest25337-21ssh22:00:140
2665299140,3cyclictest27299-21fschecks_count20:30:130
2665299140,13cyclictest0-21swapper/021:00:160
2665299140,12cyclictest0-21swapper/021:24:040
2665299140,12cyclictest0-21swapper/019:45:150
2665299140,12cyclictest0-21swapper/019:10:590
2665599132,6cyclictest0-21swapper/321:40:003
2665599130,3cyclictest29412-21ssh21:30:113
2665599130,2cyclictest0-21swapper/300:10:163
2665599130,11cyclictest0-21swapper/323:41:033
26654991310,2cyclictest12992-21ssh21:46:092
26654991310,2cyclictest0-21swapper/222:54:492
26654991310,2cyclictest0-21swapper/222:12:362
26654991310,2cyclictest0-21swapper/221:31:002
26654991310,2cyclictest0-21swapper/200:30:312
2665499130,2cyclictest0-21swapper/223:50:052
2665499130,2cyclictest0-21swapper/222:36:122
2665499130,2cyclictest0-21swapper/221:42:042
2665499130,2cyclictest0-21swapper/221:10:022
2665499130,2cyclictest0-21swapper/219:35:592
2665499130,2cyclictest0-21swapper/200:15:122
2665499130,12cyclictest0-21swapper/221:52:542
2665499130,12cyclictest0-21swapper/219:15:132
2665399139,2cyclictest0-21swapper/100:10:281
2665399138,3cyclictest14005-21runrttasks00:08:231
26653991310,2cyclictest10921-21kworker/u8:222:36:051
26653991310,2cyclictest0-21swapper/122:50:111
26653991310,2cyclictest0-21swapper/122:45:031
26653991310,2cyclictest0-21swapper/120:21:031
26653991310,2cyclictest0-21swapper/120:21:021
2665399130,2cyclictest0-21swapper/121:49:041
2665399130,2cyclictest0-21swapper/121:24:451
2665399130,2cyclictest0-21swapper/100:20:141
2665399130,12cyclictest0-21swapper/123:37:211
2665399130,12cyclictest0-21swapper/121:30:211
2665399130,12cyclictest0-21swapper/100:37:211
26652991310,2cyclictest10921-21kworker/u8:222:32:050
26652991310,2cyclictest0-21swapper/023:22:450
26652991310,2cyclictest0-21swapper/022:17:560
26652991310,2cyclictest0-21swapper/021:32:450
26652991310,2cyclictest0-21swapper/020:55:100
26652991310,2cyclictest0-21swapper/020:15:150
26652991310,2cyclictest0-21swapper/000:18:450
26652991310,2cyclictest0-21swapper/000:10:450
2665299130,2cyclictest0-21swapper/022:25:320
122082130,2sleep00-21swapper/021:10:520
306742120,2sleep10-21swapper/122:05:281
2665599129,2cyclictest26855-21ssh23:46:463
2665599129,2cyclictest0-21swapper/300:28:063
2665599127,3cyclictest3152-21nscd00:20:443
2665599127,3cyclictest21226-21cut20:15:133
2665599122,7cyclictest0-21swapper/322:56:583
2665599122,6cyclictest0-21swapper/322:46:003
2665599121,9cyclictest17475-21unixbench_multi22:26:023
2665599121,6cyclictest0-21swapper/321:30:003
2665599121,3cyclictest17832-21ssh23:37:213
2665599120,2cyclictest0-21swapper/300:00:553
2665599120,11cyclictest0-21swapper/323:58:553
2665599120,11cyclictest0-21swapper/300:15:553
2665599120,10cyclictest0-21swapper/300:37:003
2665499129,2cyclictest0-21swapper/221:05:482
2665499120,2cyclictest29484-21ssh22:40:062
2665499120,2cyclictest0-21swapper/220:41:042
2665499120,2cyclictest0-21swapper/220:06:052
2665499120,11cyclictest15395-21copy23:00:042
2665399129,2cyclictest0-21swapper/122:25:051
2665399129,2cyclictest0-21swapper/120:31:011
2665399122,7cyclictest0-21swapper/119:59:581
2665399121,9cyclictest30901-21munin-node1
2665399121,9cyclictest10769-21munin-node1
2665399120,7cyclictest0-21swapper/123:25:051
2665399120,3cyclictest0-21swapper/119:41:011
2665399120,2cyclictest0-21swapper/120:56:021
2665399120,11cyclictest0-21swapper/123:24:101
2665399120,11cyclictest0-21swapper/120:40:121
2665399120,11cyclictest0-21swapper/120:25:171
2665299129,2cyclictest4698-21kworker/u8:223:47:050
2665299129,2cyclictest28628-21apt-get20:35:060
2665299129,2cyclictest10471-21diskmemload21:45:170
2665299129,2cyclictest0-21swapper/023:38:250
2665299129,2cyclictest0-21swapper/023:26:360
2665299129,2cyclictest0-21swapper/023:15:150
2665299129,2cyclictest0-21swapper/022:57:360
2665299129,2cyclictest0-21swapper/022:45:100
2665299129,2cyclictest0-21swapper/019:26:020
2665299120,2cyclictest2447-21ssh23:55:290
2665299120,2cyclictest0-21swapper/023:53:230
2665299120,2cyclictest0-21swapper/023:08:180
2665299120,2cyclictest0-21swapper/022:20:250
2665299120,2cyclictest0-21swapper/020:40:120
2665299120,2cyclictest0-21swapper/020:25:110
2665299120,2cyclictest0-21swapper/000:35:160
2665299120,2cyclictest0-21swapper/000:31:210
2665299120,2cyclictest0-21swapper/000:20:460
2665299120,2cyclictest0-21swapper/000:00:450
2665299120,11cyclictest0-21swapper/023:32:250
2665299120,11cyclictest0-21swapper/023:02:450
2665299120,11cyclictest0-21swapper/022:05:560
2665299120,11cyclictest0-21swapper/021:35:160
39752110,2sleep33985-21ssh23:22:173
2665599118,2cyclictest10471-21diskmemload00:30:073
2665599117,2cyclictest19022-21ssh21:53:263
2665599117,2cyclictest0-21swapper/322:00:143
2665599116,3cyclictest29766-21tr23:15:133
2665599116,3cyclictest13453-21ssh23:32:463
2665599112,6cyclictest0-21swapper/321:08:583
2665599112,5cyclictest0-21swapper/321:56:003
2665599112,5cyclictest0-21swapper/320:00:003
2665599110,9cyclictest441-21munin-node3
2665399118,2cyclictest27027-21kworker/u8:019:45:041
2665399118,2cyclictest0-21swapper/119:25:161
2665399116,3cyclictest28871-21munin-node1
2665399110,9cyclictest0-21swapper/121:00:151
2665399110,3cyclictest18768-21munin-node1
2665399110,2cyclictest0-21swapper/119:11:001
2665299118,2cyclictest0-21swapper/023:10:350
2665299110,10cyclictest0-21swapper/021:40:060
2665299110,10cyclictest0-21swapper/021:17:530
2665599107,2cyclictest0-21swapper/322:52:223
2665599107,2cyclictest0-21swapper/322:09:293
2665599105,3cyclictest7418-21ls21:00:173
2665599105,3cyclictest3775-21cat20:51:013
2665599105,3cyclictest3703-21sshd19:53:143
2665599105,3cyclictest15032-21cut20:00:133
2665599104,4cyclictest9862-21cut19:46:013
2665599102,7cyclictest0-21swapper/323:28:593
2665599101,6cyclictest0-21swapper/322:31:013
2665599101,5cyclictest0-21swapper/323:10:003
2665599100,8cyclictest10471-21diskmemload21:45:273
2665599100,8cyclictest0-21swapper/323:12:193
2665599100,8cyclictest0-21swapper/322:41:453
2665599100,8cyclictest0-21swapper/322:38:013
2665499100,2cyclictest0-21swapper/220:55:052
2665399105,3cyclictest29396-21grep19:15:121
2665399101,7cyclictest5200-21fschecks_time19:35:131
2665399100,8cyclictest0-21swapper/120:00:121
2665399100,3cyclictest2468-21munin-node1
2665399100,3cyclictest0-21swapper/120:15:111
2665299107,2cyclictest22908-21kworker/u8:120:22:050
2665299107,2cyclictest22908-21kworker/u8:120:22:040
2665299107,2cyclictest0-21swapper/022:10:080
2665299107,2cyclictest0-21swapper/021:05:590
2665299107,2cyclictest0-21swapper/019:55:150
213952100,7sleep321405-21ssh21:20:413
266559996,2cyclictest0-21swapper/321:15:113
266559994,3cyclictest6033-21grep19:36:023
266559994,3cyclictest31929-21chrt20:40:323
266559994,3cyclictest31845-21proc_pri19:20:183
266559994,3cyclictest3127-21nscd22:15:093
266559994,3cyclictest29223-21df_abs19:15:103
266559994,3cyclictest27174-21df_abs20:30:133
266559994,3cyclictest23477-21interrupts20:20:163
266559994,3cyclictest23477-21interrupts20:20:153
266559994,3cyclictest15596-21ssh23:00:033
266559992,5cyclictest0-21swapper/320:15:013
266559991,6cyclictest0-21swapper/319:40:103
266559991,6cyclictest0-21swapper/319:25:113
266559991,5cyclictest0-21swapper/319:30:103
266559991,3cyclictest17051-21cpuspeed_turbos20:05:123
266559990,8cyclictest10471-21diskmemload22:10:153
266559990,8cyclictest0-21swapper/320:26:013
266549994,3cyclictest12853-21aten2.4-expect19:55:122
266549990,2cyclictest0-21swapper/220:00:022
266539990,8cyclictest0-21swapper/121:05:091
266529996,2cyclictest27027-21kworker/u8:020:11:040
266529996,2cyclictest27027-21kworker/u8:019:43:050
266529996,2cyclictest2556-21aten2.4-expect20:50:110
266559984,2cyclictest27312-21fschecks_count19:10:143
266559983,3cyclictest4713-21aten2.4_r3power20:55:123
266559983,3cyclictest28933-21aten2.4-expect20:35:113
266529985,2cyclictest3728-21runrttasks20:46:110
266529985,2cyclictest0-21swapper/020:03:050
266529984,3cyclictest31056-21aten2.4_r3power19:20:110
266529983,3cyclictest11252-21uniq19:50:150
266529980,2cyclictest0-21swapper/019:31:020
266529980,2cyclictest0-21swapper/019:15:050
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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