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2026-06-23 - 01:48

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 Tue Jun 23, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9741211796,16sleep20-21swapper/219:08:372
9835211494,15sleep30-21swapper/319:09:503
9652211392,16sleep00-21swapper/019:07:280
9103211394,12sleep10-21swapper/119:05:401
280602800,0sleep00-21swapper/022:21:000
52212730,1sleep3381ktimersoftd/323:06:013
112812720,1sleep2301ktimersoftd/223:48:092
151872710,0sleep30-21swapper/323:51:593
118892710,0sleep30-21swapper/322:39:123
987999360,18cyclictest0-21swapper/219:35:122
197692250,1sleep00-21swapper/022:12:150
102222250,0sleep00-21swapper/023:46:180
987799220,2cyclictest0-21swapper/021:35:110
988099210,19cyclictest0-21swapper/322:25:093
987799210,2cyclictest0-21swapper/000:10:110
987799210,2cyclictest0-21swapper/000:10:110
988099200,18cyclictest0-21swapper/323:10:113
988099200,18cyclictest0-21swapper/320:30:113
987999200,2cyclictest0-21swapper/221:35:122
987999200,2cyclictest0-21swapper/220:25:132
987999200,2cyclictest0-21swapper/220:20:112
987999200,18cyclictest0-21swapper/223:25:112
987799200,2cyclictest0-21swapper/020:25:110
988099190,2cyclictest0-21swapper/321:35:123
93712190,0sleep00-21swapper/022:35:430
9879991815,2cyclictest9820-21kworker/u8:119:11:052
9879991815,2cyclictest611-21kworker/u8:022:39:052
987799181,2cyclictest0-21swapper/019:35:110
216342180,1sleep3381ktimersoftd/322:49:533
9877991711,4cyclictest21799-21wc22:49:590
9879991613,2cyclictest6069-21kworker/u8:221:34:042
9879991613,2cyclictest2503-21kworker/u8:023:41:052
9879991613,2cyclictest22207-21kworker/u8:321:42:042
9879991613,2cyclictest21515-21kworker/u8:200:36:052
9879991613,2cyclictest20177-21kworker/u8:220:57:042
9879991613,2cyclictest16253-21kworker/u8:120:52:022
9879991613,2cyclictest16253-21kworker/u8:120:52:012
9879991613,2cyclictest14155-21kworker/u8:019:40:052
9879991613,2cyclictest14155-21kworker/u8:019:34:042
987999161,2cyclictest0-21swapper/222:01:052
987799161,13cyclictest24325-21ssh00:38:030
987799161,12cyclictest0-21swapper/022:44:310
266862160,1sleep226656-21ssh21:45:112
9879991512,2cyclictest611-21kworker/u8:022:29:052
9879991512,2cyclictest31082-21kworker/u8:121:19:042
9879991512,2cyclictest24254-21kworker/u8:219:54:052
9879991512,2cyclictest20313-21kworker/u8:119:55:042
9879991511,2cyclictest28886-21ssh21:12:072
9879991510,3cyclictest0-21swapper/223:09:082
987999150,3cyclictest0-21swapper/222:50:162
9878991512,2cyclictest25970-21diskmemload23:00:121
987899151,12cyclictest13869-21python00:26:021
9878991510,3cyclictest3871-21iostat_ios21:55:141
9878991510,3cyclictest0-21swapper/120:40:391
987899150,13cyclictest207150irq/24-eth100:30:041
987899150,13cyclictest0-21swapper/122:37:521
987899150,13cyclictest0-21swapper/119:55:121
987799151,3cyclictest24593-21ssh23:27:200
987799151,3cyclictest0-21swapper/023:31:020
987799151,12cyclictest27003-21ssh22:55:140
9877991510,3cyclictest0-21swapper/022:50:100
9877991510,3cyclictest0-21swapper/000:25:210
987799150,3cyclictest0-21swapper/022:06:300
987799150,3cyclictest0-21swapper/021:20:120
987799150,13cyclictest0-21swapper/000:30:110
988099149,3cyclictest0-21swapper/320:05:133
988099141,2cyclictest17971-21hddtemp_smartct23:55:143
987999141,2cyclictest0-21swapper/220:06:022
9879991411,2cyclictest611-21kworker/u8:022:41:052
9879991411,2cyclictest31107-21kworker/u8:200:24:042
9879991411,2cyclictest31107-21kworker/u8:200:19:042
9879991411,2cyclictest20684-21kworker/u8:023:10:042
9879991411,2cyclictest20684-21kworker/u8:022:56:042
9879991411,2cyclictest19844-21kworker/u8:100:05:052
9879991411,2cyclictest10179-21kworker/u8:220:39:042
9879991411,2cyclictest0-21swapper/223:57:372
9879991411,2cyclictest0-21swapper/223:22:472
9879991411,2cyclictest0-21swapper/223:15:482
9879991411,2cyclictest0-21swapper/223:01:082
9879991411,2cyclictest0-21swapper/221:24:052
9879991410,2cyclictest3292-21ssh22:30:112
987999140,3cyclictest20199-21ssh00:33:162
987999140,2cyclictest0-21swapper/223:52:082
987999140,13cyclictest0-21swapper/223:39:042
987999140,12cyclictest0-21swapper/221:52:062
987999140,12cyclictest0-21swapper/221:08:042
987899147,5cyclictest0-21swapper/121:50:231
987899144,8cyclictest0-21swapper/120:55:161
987899140,2cyclictest25970-21diskmemload23:10:021
987899140,2cyclictest0-21swapper/122:20:061
987899140,2cyclictest0-21swapper/121:33:021
987899140,2cyclictest0-21swapper/120:00:151
987899140,13cyclictest0-21swapper/121:41:231
987899140,12cyclictest25970-21diskmemload23:58:151
987899140,12cyclictest11040-21ps20:30:191
987899140,12cyclictest0-21swapper/122:10:341
987899140,12cyclictest0-21swapper/100:20:141
987799149,3cyclictest21779-21head00:00:100
987799142,6cyclictest0-21swapper/022:15:000
987799141,3cyclictest7167-21ssh21:59:150
987799140,7cyclictest0-21swapper/023:45:010
987799140,3cyclictest0-21swapper/022:32:510
987799140,12cyclictest0-21swapper/023:16:020
987799140,12cyclictest0-21swapper/023:06:480
987799140,12cyclictest0-21swapper/021:32:490
188462140,3sleep218879-21sendmail_mailst22:46:012
988099131,10cyclictest6083-21ssh21:57:293
988099130,2cyclictest0-21swapper/321:40:133
988099130,10cyclictest0-21swapper/322:15:553
9879991310,2cyclictest0-21swapper/222:16:282
9879991310,2cyclictest0-21swapper/221:27:222
9879991310,2cyclictest0-21swapper/200:01:302
987999130,11cyclictest0-21swapper/200:10:192
987999130,11cyclictest0-21swapper/200:10:182
987899138,3cyclictest0-21swapper/119:40:161
987899138,3cyclictest0-21swapper/119:10:151
987899135,6cyclictest4562-21gdm-simple-gree21:23:581
987899133,8cyclictest25970-21diskmemload23:05:121
987899133,8cyclictest221ktimersoftd/119:26:011
987899131,9cyclictest0-21swapper/121:45:131
987899131,3cyclictest0-21swapper/123:40:431
987899131,3cyclictest0-21swapper/119:35:131
987899131,10cyclictest25970-21diskmemload23:50:121
987899131,10cyclictest0-21swapper/122:51:021
9878991310,2cyclictest0-21swapper/122:27:241
9878991310,2cyclictest0-21swapper/122:02:241
9878991310,2cyclictest0-21swapper/100:17:541
987899130,2cyclictest0-21swapper/121:14:131
987899130,2cyclictest0-21swapper/100:09:451
987899130,1cyclictest0-21swapper/123:22:321
987899130,12cyclictest0-21swapper/123:47:421
987899130,12cyclictest0-21swapper/123:35:021
987899130,12cyclictest0-21swapper/122:45:021
987899130,12cyclictest0-21swapper/122:31:121
987899130,12cyclictest0-21swapper/121:05:141
987899130,11cyclictest27651-21pzem_current22:55:181
987899130,11cyclictest25970-21diskmemload22:43:071
987899130,11cyclictest0-21swapper/100:10:291
987899130,11cyclictest0-21swapper/100:10:281
9877991310,2cyclictest10253-21ssh23:11:050
9877991310,2cyclictest0-21swapper/023:59:060
9877991310,2cyclictest0-21swapper/022:01:590
9877991310,2cyclictest0-21swapper/021:49:030
9877991310,2cyclictest0-21swapper/020:15:010
987799130,2cyclictest0-21swapper/020:05:140
987799130,11cyclictest0-21swapper/023:01:590
987799130,11cyclictest0-21swapper/022:25:440
987799130,11cyclictest0-21swapper/021:18:440
987799130,11cyclictest0-21swapper/020:01:010
30992130,2sleep20-21swapper/221:55:102
276492130,2sleep20-21swapper/222:20:312
105752130,1sleep00-21swapper/021:27:030
988099129,2cyclictest0-21swapper/323:19:153
988099129,2cyclictest0-21swapper/322:50:153
988099129,2cyclictest0-21swapper/322:33:533
988099129,2cyclictest0-21swapper/300:15:143
988099128,3cyclictest24031-21ssh00:37:353
988099128,2cyclictest3506-21munin-node3
988099120,2cyclictest0-21swapper/323:33:443
988099120,2cyclictest0-21swapper/320:40:133
988099120,11cyclictest0-21swapper/321:31:553
988099120,11cyclictest0-21swapper/321:21:043
988099120,11cyclictest0-21swapper/321:14:163
987999129,2cyclictest31813-21kworker/u8:020:31:042
987999129,2cyclictest0-21swapper/223:30:372
987999129,2cyclictest0-21swapper/222:05:172
987999129,2cyclictest0-21swapper/200:25:272
987999120,2cyclictest0-21swapper/222:13:342
987999120,2cyclictest0-21swapper/219:16:012
987999120,11cyclictest0-21swapper/219:26:002
987899129,2cyclictest0-21swapper/122:06:021
987899129,2cyclictest0-21swapper/121:37:131
987899129,2cyclictest0-21swapper/121:19:371
987899128,2cyclictest0-21swapper/122:15:161
987899127,3cyclictest0-21swapper/120:35:101
987899127,3cyclictest0-21swapper/120:06:041
987899127,3cyclictest0-21swapper/119:15:181
987899124,6cyclictest3688-21Xorg19:51:591
987899121,9cyclictest8924-21needreboot21:25:161
987899121,9cyclictest6419-21diskstats20:20:131
987899121,9cyclictest25970-21diskmemload23:30:201
987899121,9cyclictest0-21swapper/121:00:121
987899121,9cyclictest0-21swapper/120:10:151
987899121,3cyclictest0-21swapper/120:25:201
987899120,3cyclictest0-21swapper/120:45:111
987899120,3cyclictest0-21swapper/120:15:171
987899120,1cyclictest0-21swapper/119:20:101
987899120,11cyclictest0-21swapper/123:28:331
987899120,11cyclictest0-21swapper/123:19:171
987899120,11cyclictest0-21swapper/119:30:141
987899120,11cyclictest0-21swapper/100:39:041
987899120,11cyclictest0-21swapper/100:00:141
987799129,2cyclictest0-21swapper/023:52:010
987799129,2cyclictest0-21swapper/023:35:370
987799129,2cyclictest0-21swapper/019:56:000
987799129,2cyclictest0-21swapper/019:15:120
987799129,2cyclictest0-21swapper/000:21:050
987799122,7cyclictest0-21swapper/020:46:580
987799120,2cyclictest0-21swapper/021:51:200
987799120,2cyclictest0-21swapper/021:10:050
987799120,2cyclictest0-21swapper/021:00:150
987799120,2cyclictest0-21swapper/020:35:480
987799120,2cyclictest0-21swapper/019:10:570
987799120,2cyclictest0-21swapper/000:15:090
987799120,11cyclictest0-21swapper/023:20:370
987799120,11cyclictest0-21swapper/021:40:100
987799120,11cyclictest0-21swapper/021:05:200
987799120,11cyclictest0-21swapper/019:26:010
987799120,11cyclictest0-21swapper/000:06:370
988099118,2cyclictest0-21swapper/322:22:153
988099118,2cyclictest0-21swapper/321:49:393
988099118,2cyclictest0-21swapper/319:51:053
988099118,2cyclictest0-21swapper/319:15:113
988099117,2cyclictest25970-21diskmemload21:52:253
988099111,7cyclictest4556-21metacity19:13:593
988099110,9cyclictest0-21swapper/322:13:543
988099110,2cyclictest0-21swapper/323:20:183
988099110,2cyclictest0-21swapper/323:01:453
988099110,2cyclictest0-21swapper/322:57:353
988099110,2cyclictest0-21swapper/321:26:033
988099110,2cyclictest0-21swapper/300:06:153
988099110,10cyclictest0-21swapper/300:24:253
988099110,10cyclictest0-21swapper/300:00:353
987999118,2cyclictest0-21swapper/220:10:122
987999110,2cyclictest0-21swapper/221:04:052
987999110,2cyclictest0-21swapper/220:04:052
987999110,2cyclictest0-21swapper/219:48:042
987999110,10cyclictest0-21swapper/219:23:042
987899111,8cyclictest24216-21munin-node1
987899111,2cyclictest0-21swapper/120:50:121
987899111,2cyclictest0-21swapper/120:50:121
987799118,2cyclictest0-21swapper/020:10:160
987799116,3cyclictest3728-21runrttasks19:23:540
987799110,2cyclictest0-21swapper/019:32:020
113712110,2sleep311381-21ssh23:48:193
988099107,2cyclictest0-21swapper/322:41:453
988099107,2cyclictest0-21swapper/319:45:173
988099107,2cyclictest0-21swapper/319:40:183
988099107,2cyclictest0-21swapper/300:25:123
988099105,3cyclictest3728-21runrttasks20:53:453
988099105,3cyclictest3728-21runrttasks20:53:443
988099105,3cyclictest13278-21grep22:05:163
988099104,4cyclictest12182-21telnet20:35:123
988099101,7cyclictest8852-21tail22:00:183
988099101,6cyclictest0-21swapper/323:27:593
988099100,9cyclictest0-21swapper/321:15:023
988099100,9cyclictest0-21swapper/320:57:043
988099100,7cyclictest0-21swapper/321:06:023
988099100,7cyclictest0-21swapper/300:11:053
988099100,7cyclictest0-21swapper/300:11:043
988099100,2cyclictest0-21swapper/300:32:343
987999107,2cyclictest0-21swapper/220:15:072
987799105,3cyclictest274-21jbd2/sda1-820:20:190
987799105,3cyclictest26583-21df_abs19:50:140
987799105,3cyclictest25465-21grep19:46:010
987799102,5cyclictest0-21swapper/020:57:580
167902100,2sleep20-21swapper/220:45:162
98809996,2cyclictest0-21swapper/323:38:353
98809994,3cyclictest6149-21aten2.4-expect20:20:123
98809994,3cyclictest23341-21swap21:01:033
98809994,3cyclictest2134-21df20:10:153
98809994,3cyclictest17268-21mailstats20:46:003
98809993,4cyclictest20306-21aten2.4-expect19:35:133
98809990,2cyclictest0-21swapper/320:26:593
98799990,2cyclictest0-21swapper/220:40:052
98779994,3cyclictest232802sleep019:40:560
98779994,3cyclictest18450-21df_abs20:50:130
98779994,3cyclictest18450-21df_abs20:50:120
98779994,3cyclictest14131-21aten2.4_r3power20:40:110
98779994,3cyclictest10977-21proc_pri20:30:190
98809984,3cyclictest29229-21pzem_current19:55:283
98809984,2cyclictest4773-21missed_timers20:15:163
98809984,2cyclictest16664-21fschecks_time19:25:133
98809983,3cyclictest3688-21Xorg19:20:583
98809982,3cyclictest18235-21aten2.4-expect19:30:113
98809973,2cyclictest30349-21aten2.4-expect20:00:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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