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2026-01-23 - 12:55
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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 Fri Jan 23, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
45872117106,6sleep10-21swapper/119:07:171
559721130,1sleep337-21rcuc/322:39:083
4760211393,15sleep00-21swapper/019:09:320
454129777,15sleep20-21swapper/219:06:422
442829684,6sleep30-21swapper/319:05:273
174252790,0sleep20-21swapper/223:26:052
248162740,0sleep30-21swapper/321:13:263
74522690,0sleep00-21swapper/023:15:210
158762680,0sleep10-21swapper/121:39:221
311982270,1sleep3381ktimersoftd/322:30:253
131412240,0sleep20-21swapper/200:32:512
482799210,19cyclictest0-21swapper/121:00:121
482799200,2cyclictest0-21swapper/119:50:101
482799200,18cyclictest0-21swapper/120:00:121
482699200,18cyclictest0-21swapper/020:00:120
308582190,0sleep10-21swapper/123:40:431
482799182,2cyclictest23-21ksoftirqd/121:15:041
4827991815,2cyclictest9899-21kworker/u8:222:56:051
4827991815,2cyclictest23253-21kworker/u8:023:26:051
4827991815,2cyclictest23253-21kworker/u8:023:02:051
4828991714,2cyclictest31925-21kworker/u8:221:21:042
4828991714,2cyclictest23253-21kworker/u8:023:12:042
4827991714,2cyclictest9268-21kworker/u8:020:53:041
4827991714,2cyclictest4984-21kworker/u8:121:47:051
4827991714,2cyclictest4984-21kworker/u8:121:27:041
4827991714,2cyclictest28621-21kworker/u8:123:06:051
4827991714,2cyclictest25590-21kworker/u8:221:54:041
4827991714,2cyclictest1864-21kworker/u8:122:42:051
482799170,5cyclictest0-21swapper/120:27:591
482999161,13cyclictest0-21swapper/322:27:573
4827991613,2cyclictest9268-21kworker/u8:020:57:051
4827991613,2cyclictest8614-21kworker/u8:000:13:041
4827991613,2cyclictest7178-21kworker/u8:119:22:051
4827991613,2cyclictest31049-21kworker/u8:220:24:051
4827991613,2cyclictest3068-21kworker/u8:120:31:051
4827991613,2cyclictest23265-21kworker/u8:222:33:051
4827991613,2cyclictest15416-21kworker/u8:019:37:051
4827991613,2cyclictest10000-21kworker/u8:219:19:041
482799161,2cyclictest21121-21diskmemload22:02:051
482799161,2cyclictest21121-21diskmemload22:02:041
482999151,3cyclictest6631-21ssh23:50:163
482999151,12cyclictest16131-21ssh23:25:173
4829991510,3cyclictest0-21swapper/321:22:463
482999150,3cyclictest0-21swapper/322:41:573
482999150,13cyclictest8734-21ssh00:28:073
482999150,13cyclictest0-21swapper/320:05:123
482999150,13cyclictest0-21swapper/320:00:253
4828991512,2cyclictest23265-21kworker/u8:222:24:042
482899151,12cyclictest0-21swapper/223:17:362
482899150,13cyclictest27066-21tail21:50:262
4827991512,2cyclictest8614-21kworker/u8:023:56:051
4827991512,2cyclictest4984-21kworker/u8:121:33:041
4827991512,2cyclictest31049-21kworker/u8:221:10:051
4827991512,2cyclictest31049-21kworker/u8:220:47:051
4827991512,2cyclictest18872-21kworker/u8:119:43:041
4827991512,2cyclictest18546-21kworker/u8:122:25:041
4827991512,2cyclictest15416-21kworker/u8:019:47:051
4827991512,2cyclictest12354-21kworker/u8:022:11:041
4827991512,2cyclictest10000-21kworker/u8:219:33:051
482799150,2cyclictest32568-21ssh00:19:051
482799150,2cyclictest0-21swapper/123:30:051
482799150,2cyclictest0-21swapper/122:15:051
482799150,11cyclictest0-21swapper/123:17:041
482699151,12cyclictest0-21swapper/023:48:510
482999141,3cyclictest804-21ssh23:44:523
4829991411,2cyclictest21121-21diskmemload00:12:473
482999141,11cyclictest9893-21ssh22:07:513
482999140,12cyclictest0-21swapper/300:35:283
4828991411,2cyclictest0-21swapper/223:50:292
4828991411,2cyclictest0-21swapper/222:41:092
4828991411,2cyclictest0-21swapper/221:10:212
4828991411,2cyclictest0-21swapper/200:35:282
482899141,11cyclictest541-21ssh22:33:172
482899140,3cyclictest9882-21ssh22:07:502
482899140,3cyclictest0-21swapper/200:12:402
482899140,2cyclictest0-21swapper/223:40:122
482899140,13cyclictest27763-21ssh23:38:082
482899140,13cyclictest0-21swapper/221:31:092
482899140,13cyclictest0-21swapper/221:18:482
482799142,4cyclictest0-21swapper/119:28:011
482799141,3cyclictest2694-21cut23:10:181
4827991411,2cyclictest822-21kworker/u8:123:49:041
4827991411,2cyclictest31049-21kworker/u8:221:08:041
4827991411,2cyclictest27110-21kworker/u8:020:09:051
4827991411,2cyclictest13795-21kworker/u8:100:07:051
4827991411,2cyclictest13639-21kworker/u8:223:24:041
4827991411,2cyclictest0-21swapper/120:35:201
4827991411,2cyclictest0-21swapper/100:00:141
482799140,3cyclictest0-21swapper/122:47:581
482799140,2cyclictest4806-21ssh22:37:491
482799140,2cyclictest0-21swapper/121:22:401
482799140,2cyclictest0-21swapper/100:28:041
482799140,12cyclictest8815-21chrt23:52:251
482799140,12cyclictest21121-21diskmemload22:09:491
482799140,12cyclictest0-21swapper/100:32:041
4826991411,2cyclictest0-21swapper/023:25:350
4826991411,2cyclictest0-21swapper/022:45:250
482699140,12cyclictest6629-21ssh21:29:040
482699140,12cyclictest2636-21ssh23:10:170
482699140,12cyclictest0-21swapper/023:20:140
482699140,12cyclictest0-21swapper/000:35:430
482699140,12cyclictest0-21swapper/000:05:210
47092140,3sleep04719-21ssh22:37:410
482999132,6cyclictest0-21swapper/320:29:593
4829991310,2cyclictest21121-21diskmemload21:52:283
4829991310,2cyclictest21121-21diskmemload21:42:573
4829991310,2cyclictest21121-21diskmemload21:42:563
4829991310,2cyclictest21121-21diskmemload21:30:373
4829991310,2cyclictest0-21swapper/323:13:023
4829991310,2cyclictest0-21swapper/323:00:273
4829991310,2cyclictest0-21swapper/322:51:423
4829991310,2cyclictest0-21swapper/322:45:173
4829991310,2cyclictest0-21swapper/322:23:173
4829991310,2cyclictest0-21swapper/322:17:413
4829991310,2cyclictest0-21swapper/322:10:073
4829991310,2cyclictest0-21swapper/322:02:073
4829991310,2cyclictest0-21swapper/322:02:063
4829991310,2cyclictest0-21swapper/321:35:173
4829991310,2cyclictest0-21swapper/321:17:353
4829991310,2cyclictest0-21swapper/320:55:173
4829991310,2cyclictest0-21swapper/320:35:053
4829991310,2cyclictest0-21swapper/320:10:293
4829991310,2cyclictest0-21swapper/300:21:373
482999130,3cyclictest0-21swapper/300:00:163
482999130,2cyclictest0-21swapper/323:45:273
482999130,2cyclictest0-21swapper/323:20:273
482999130,2cyclictest0-21swapper/300:15:493
482999130,12cyclictest0-21swapper/323:36:393
482999130,12cyclictest0-21swapper/323:08:283
482999130,12cyclictest0-21swapper/322:55:393
482999130,12cyclictest0-21swapper/300:32:183
482899138,3cyclictest17120-21latency_hist19:39:592
4828991310,2cyclictest13890-21ssh21:35:542
4828991310,2cyclictest0-21swapper/223:58:142
4828991310,2cyclictest0-21swapper/222:55:422
4828991310,2cyclictest0-21swapper/220:20:272
4828991310,2cyclictest0-21swapper/220:05:152
482899130,2cyclictest0-21swapper/220:30:142
482899130,2cyclictest0-21swapper/220:00:112
482899130,2cyclictest0-21swapper/200:27:382
482899130,2cyclictest0-21swapper/200:08:202
482899130,12cyclictest21121-21diskmemload23:00:042
482899130,12cyclictest0-21swapper/222:52:512
482899130,12cyclictest0-21swapper/222:45:252
482899130,12cyclictest0-21swapper/222:25:292
482899130,12cyclictest0-21swapper/222:00:012
482899130,12cyclictest0-21swapper/222:00:002
482899130,12cyclictest0-21swapper/221:45:402
482899130,11cyclictest0-21swapper/222:15:282
4827991310,2cyclictest28243-21kworker/u8:100:36:041
4827991310,2cyclictest28243-21kworker/u8:100:20:051
4827991310,2cyclictest18872-21kworker/u8:120:11:051
4827991310,2cyclictest0-21swapper/122:21:291
4827991310,2cyclictest0-21swapper/121:41:291
4827991310,2cyclictest0-21swapper/121:41:281
482799130,2cyclictest0-21swapper/121:55:061
482799130,11cyclictest0-21swapper/122:50:191
4826991310,2cyclictest21121-21diskmemload21:55:050
4826991310,2cyclictest0-21swapper/023:06:560
4826991310,2cyclictest0-21swapper/023:00:310
4826991310,2cyclictest0-21swapper/022:50:320
4826991310,2cyclictest0-21swapper/022:21:450
4826991310,2cyclictest0-21swapper/022:18:040
4826991310,2cyclictest0-21swapper/022:08:540
4826991310,2cyclictest0-21swapper/021:50:310
4826991310,2cyclictest0-21swapper/021:49:310
4826991310,2cyclictest0-21swapper/021:43:410
4826991310,2cyclictest0-21swapper/021:43:410
4826991310,2cyclictest0-21swapper/021:30:150
4826991310,2cyclictest0-21swapper/021:17:430
4826991310,2cyclictest0-21swapper/019:35:210
482699130,2cyclictest22125-21ssh23:31:240
482699130,2cyclictest0-21swapper/022:33:240
482699130,12cyclictest21121-21diskmemload00:25:030
482699130,12cyclictest0-21swapper/023:52:550
482699130,12cyclictest0-21swapper/023:40:560
482699130,12cyclictest0-21swapper/022:40:030
482699130,12cyclictest0-21swapper/022:26:120
482699130,12cyclictest0-21swapper/021:21:230
482699130,12cyclictest0-21swapper/020:05:110
482699130,12cyclictest0-21swapper/000:30:160
482699130,12cyclictest0-21swapper/000:14:510
482699130,12cyclictest0-21swapper/000:01:100
132112130,2sleep00-21swapper/022:10:470
482999129,2cyclictest0-21swapper/323:30:383
482999129,2cyclictest0-21swapper/321:25:463
482999129,2cyclictest0-21swapper/321:00:183
482999128,2cyclictest21110-21apt-get19:50:063
482999120,2cyclictest0-21swapper/319:45:133
482999120,11cyclictest0-21swapper/323:55:253
482999120,11cyclictest0-21swapper/321:55:273
482999120,11cyclictest0-21swapper/321:47:173
482999120,11cyclictest0-21swapper/320:50:153
482999120,11cyclictest0-21swapper/300:06:003
482899129,2cyclictest0-21swapper/221:55:122
482899120,2cyclictest0-21swapper/223:45:282
482899120,2cyclictest0-21swapper/200:15:432
482899120,11cyclictest21121-21diskmemload22:10:102
482899120,11cyclictest0-21swapper/223:33:502
482899120,11cyclictest0-21swapper/223:21:312
482899120,11cyclictest0-21swapper/223:07:002
482899120,11cyclictest0-21swapper/222:36:402
482899120,11cyclictest0-21swapper/221:43:472
482899120,11cyclictest0-21swapper/221:43:462
482899120,11cyclictest0-21swapper/221:27:392
482899120,11cyclictest0-21swapper/221:05:172
482899120,11cyclictest0-21swapper/220:55:132
482899120,11cyclictest0-21swapper/219:45:172
482799120,11cyclictest0-21swapper/123:36:241
482699129,2cyclictest0-21swapper/022:58:140
482699129,2cyclictest0-21swapper/021:10:060
482699129,2cyclictest0-21swapper/020:10:310
482699129,2cyclictest0-21swapper/000:21:030
482699120,2cyclictest0-21swapper/019:45:120
482699120,1cyclictest0-21swapper/022:01:040
482699120,1cyclictest0-21swapper/022:01:030
482699120,11cyclictest0-21swapper/023:55:010
482699120,11cyclictest0-21swapper/000:15:510
282732120,2sleep00-21swapper/023:39:020
21112120,2sleep20-21swapper/200:20:252
138332120,8sleep00-21swapper/021:35:490
482999118,2cyclictest0-21swapper/319:30:273
482999113,6cyclictest0-21swapper/320:20:263
482999112,7cyclictest0-21swapper/320:17:023
482999111,7cyclictest7497-21gdm-simple-gree19:41:593
482999110,10cyclictest0-21swapper/323:16:023
482899118,2cyclictest15416-21kworker/u8:019:50:042
482899110,1cyclictest0-21swapper/200:00:292
482799118,2cyclictest0-21swapper/120:40:221
482799117,2cyclictest31996-21hddtemp_smartct20:15:161
482799110,9cyclictest23740-21df_abs19:55:141
482699118,2cyclictest0-21swapper/019:40:220
482699118,2cyclictest0-21swapper/019:15:240
482999107,2cyclictest0-21swapper/319:34:593
482999105,3cyclictest7679-21fschecks_count19:15:143
482999101,7cyclictest0-21swapper/319:22:263
482999101,6cyclictest0-21swapper/321:05:113
482899107,2cyclictest5040-21apt-get19:10:102
482899107,2cyclictest22013-21kworker/u8:219:59:052
482899107,2cyclictest10000-21kworker/u8:219:42:052
482799107,2cyclictest0-21swapper/119:10:131
482699107,2cyclictest0-21swapper/020:15:250
482699100,9cyclictest9268-21kworker/u8:020:54:050
482699100,9cyclictest31049-21kworker/u8:221:03:050
48299994,3cyclictest23998-21if_eth019:55:163
48299994,3cyclictest12087-21missed_timers20:45:183
48299994,3cyclictest11365-21telnet19:25:123
48299991,3cyclictest9951-21iostat_ios20:40:183
48299991,3cyclictest5698-21iostat_ios20:30:163
48299991,3cyclictest5433-21diskstats19:10:123
48289995,2cyclictest13378-21aten2.4_r3power19:30:122
48289994,3cyclictest9686-21fschecks_count20:40:152
48289994,3cyclictest7458-21runrttasks19:25:412
48289994,3cyclictest7445-21tr20:35:152
48289994,3cyclictest17396-21basename21:00:132
48289994,3cyclictest13326-21aten2.4_r3power20:50:092
48269996,2cyclictest0-21swapper/020:27:540
48269991,6cyclictest7458-21runrttasks20:40:490
48269990,8cyclictest0-21swapper/020:32:040
410290,2sleep20-21swapper/220:15:482
48289984,3cyclictest0-21swapper/220:25:112
48289983,3cyclictest9526-21grep19:20:132
48289983,3cyclictest7596-21sed19:15:132
48289983,3cyclictest6431-21nscd20:10:142
48289983,3cyclictest11731-21cut20:45:152
48269985,2cyclictest0-21swapper/020:20:040
48269984,3cyclictest7319-21sendmail-mta19:50:070
48269984,3cyclictest5131-21aten2.4-expect19:10:110
48269983,3cyclictest24106-21sed19:55:170
48269983,3cyclictest15983-21kernelversion20:55:160
48269983,3cyclictest11832-21gltestperf19:25:130
48269983,3cyclictest11212-21cat19:25:000
48269980,2cyclictest0-21swapper/020:45:060
48269980,2cyclictest0-21swapper/019:30:210
48269974,2cyclictest101ktimersoftd/021:05:100
48269973,3cyclictest4825-21cyclictest20:35:050
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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