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2026-08-15 - 20:29

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 Aug 15, 2026 12:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20132211894,19sleep00-21swapper/007:06:290
19628211795,17sleep30-21swapper/307:05:233
196972113102,6sleep10-21swapper/107:05:581
20349210689,12sleep20-21swapper/207:09:182
201602860,1sleep00-21swapper/010:31:040
147512760,0sleep00-21swapper/012:39:380
254222710,0sleep20-21swapper/209:30:492
214862700,1sleep20-21swapper/211:05:452
310082690,0sleep30-21swapper/311:15:243
186032600,0sleep10-21swapper/111:03:131
326682570,0sleep10-21swapper/109:38:461
137122540,1sleep30-21swapper/310:58:133
20435995317,18cyclictest0-21swapper/111:50:131
2043599360,18cyclictest0-21swapper/112:35:131
2043699260,2cyclictest0-21swapper/208:50:112
20434992320,2cyclictest9361-21kworker/u8:112:30:010
20434992219,2cyclictest13309-21kworker/u8:210:47:040
240152210,2sleep124017-21ntp_kernel_pll_10:35:191
20436992118,2cyclictest3919-21kworker/u8:010:49:042
20436992118,2cyclictest13309-21kworker/u8:210:32:052
20435992110,2cyclictest0-21swapper/109:14:021
2043599210,13cyclictest0-21swapper/110:13:541
2043799201,17cyclictest0-21swapper/312:15:113
2043599201,9cyclictest0-21swapper/107:20:161
20435992017,2cyclictest0-21swapper/109:00:101
2043599200,2cyclictest0-21swapper/110:00:081
2043599200,19cyclictest0-21swapper/111:35:121
92902190,1sleep20-21swapper/212:00:122
2043699190,2cyclictest0-21swapper/212:30:012
2043599199,2cyclictest0-21swapper/112:20:461
2043599199,2cyclictest0-21swapper/111:56:271
2043599199,2cyclictest0-21swapper/111:21:191
20435991910,7cyclictest0-21swapper/110:50:141
2043599190,2cyclictest0-21swapper/111:19:291
2043599190,17cyclictest0-21swapper/110:15:141
2043599190,11cyclictest0-21swapper/110:09:471
20436991815,2cyclictest9361-21kworker/u8:112:09:042
20436991815,2cyclictest7921-21kworker/u8:009:28:042
20436991815,2cyclictest31774-21kworker/u8:107:50:042
20436991815,2cyclictest20414-21kworker/u8:111:53:042
20436991814,2cyclictest7921-21kworker/u8:009:35:042
2043599188,2cyclictest18855-21munin-node1
2043599188,2cyclictest0-21swapper/109:31:061
2043599187,2cyclictest13804-21munin-node1
2043599182,6cyclictest0-21swapper/107:57:411
20435991810,6cyclictest0-21swapper/111:40:171
20435991810,2cyclictest0-21swapper/110:49:291
20435991810,2cyclictest0-21swapper/109:45:071
20435991810,1cyclictest0-21swapper/107:10:141
2043599180,9cyclictest26619-21tr11:11:021
2043599180,9cyclictest0-21swapper/112:15:121
2043599180,8cyclictest0-21swapper/110:55:121
2043599180,2cyclictest0-21swapper/112:04:481
2043599180,16cyclictest0-21swapper/111:48:311
2043599180,16cyclictest0-21swapper/111:29:201
2043599180,16cyclictest0-21swapper/109:55:051
2043599180,16cyclictest0-21swapper/108:30:161
2043599180,10cyclictest0-21swapper/109:16:431
20434991815,2cyclictest9361-21kworker/u8:112:29:040
20434991815,2cyclictest10470-21kworker/u8:211:27:040
2043799171,2cyclictest10468-21ssh12:35:133
2043799171,2cyclictest0-21swapper/310:05:113
20436991714,2cyclictest26333-21kworker/u8:212:22:012
20436991714,2cyclictest21207-21kworker/u8:012:16:052
20436991714,2cyclictest15248-21kworker/u8:110:22:042
2043699170,15cyclictest0-21swapper/212:29:042
2043599178,2cyclictest0-21swapper/112:34:041
2043599178,2cyclictest0-21swapper/111:34:281
2043599171,8cyclictest0-21swapper/107:35:151
2043599170,9cyclictest0-21swapper/109:25:151
2043599170,8cyclictest0-21swapper/112:26:031
2043599170,2cyclictest0-21swapper/110:23:381
2043599170,2cyclictest0-21swapper/109:41:041
2043599170,2cyclictest0-21swapper/108:05:191
2043599170,11cyclictest0-21swapper/108:35:121
2043599170,10cyclictest0-21swapper/109:23:331
2043799161,2cyclictest0-21swapper/307:35:123
20437991611,3cyclictest31760-21apt-get11:50:123
20436991613,2cyclictest3919-21kworker/u8:011:03:052
20436991613,2cyclictest31774-21kworker/u8:107:23:042
20436991613,2cyclictest21757-21kworker/u8:209:42:042
2043699161,13cyclictest7886-21ssh11:58:272
2043699160,3cyclictest0-21swapper/211:15:122
2043599169,2cyclictest0-21swapper/111:08:031
2043599169,2cyclictest0-21swapper/110:26:481
2043599168,2cyclictest0-21swapper/109:54:191
2043599162,8cyclictest0-21swapper/112:13:581
2043599160,8cyclictest0-21swapper/107:50:171
2043599160,2cyclictest26578-21munin-node1
2043599160,14cyclictest0-21swapper/110:31:051
20434991613,2cyclictest31774-21kworker/u8:107:24:040
2043799151,12cyclictest14425-21ssh10:25:213
2043799151,12cyclictest0-21swapper/309:00:123
20437991510,3cyclictest0-21swapper/311:55:163
20436991512,2cyclictest21757-21kworker/u8:209:54:042
20436991512,2cyclictest15248-21kworker/u8:110:04:012
20436991512,2cyclictest10470-21kworker/u8:211:25:042
20436991511,2cyclictest26578-21latency_hist11:45:002
2043699151,12cyclictest0-21swapper/210:15:142
2043699150,3cyclictest5850-21sendmail-mta11:24:362
2043699150,13cyclictest0-21swapper/207:40:162
2043599152,6cyclictest0-21swapper/109:08:581
2043599152,6cyclictest0-21swapper/108:13:011
2043599151,4cyclictest4497-21copy07:50:001
2043599151,4cyclictest0-21swapper/107:30:001
2043599150,2cyclictest0-21swapper/108:16:041
20434991512,2cyclictest15248-21kworker/u8:110:01:050
20434991512,2cyclictest15226-21kworker/u8:011:43:040
20434991512,2cyclictest13309-21kworker/u8:210:26:010
20434991511,2cyclictest13091-21memory11:30:180
2043499150,3cyclictest12883-21ssh09:51:010
20437991411,2cyclictest0-21swapper/311:13:333
2043799141,11cyclictest3614-21ssh11:20:323
2043799140,12cyclictest0-21swapper/312:20:423
2043799140,12cyclictest0-21swapper/311:25:163
20436991411,2cyclictest31774-21kworker/u8:107:56:042
20436991411,2cyclictest20819-21kworker/u8:008:44:042
20436991411,2cyclictest15248-21kworker/u8:110:29:042
20436991411,2cyclictest13309-21kworker/u8:210:37:042
20436991411,2cyclictest0-21swapper/211:35:262
20436991411,2cyclictest0-21swapper/210:56:002
20436991411,2cyclictest0-21swapper/209:55:052
20436991410,2cyclictest0-21swapper/208:55:172
2043699140,13cyclictest4036-21diskmemload09:10:252
2043699140,13cyclictest0-21swapper/210:12:472
2043699140,12cyclictest20878-21aten2.4_r3power08:30:132
2043699140,12cyclictest0-21swapper/211:45:182
2043599140,6cyclictest0-21swapper/108:52:011
2043599140,3cyclictest31414-21cat08:55:171
20434991411,2cyclictest9361-21kworker/u8:112:04:040
20434991411,2cyclictest7921-21kworker/u8:009:25:040
20434991411,2cyclictest7921-21kworker/u8:009:21:040
20434991411,2cyclictest3919-21kworker/u8:011:08:040
20434991411,2cyclictest3919-21kworker/u8:010:57:040
20434991411,2cyclictest26333-21kworker/u8:212:24:040
20434991411,2cyclictest0-21swapper/011:54:290
20434991411,2cyclictest0-21swapper/011:20:110
20434991411,2cyclictest0-21swapper/010:20:200
20434991411,2cyclictest0-21swapper/009:55:130
2043499140,13cyclictest0-21swapper/009:00:110
2043499140,12cyclictest0-21swapper/011:37:290
2043499140,12cyclictest0-21swapper/010:05:130
2043799138,3cyclictest7767-21ssh09:45:433
2043799138,3cyclictest15442-21python12:06:013
2043799132,8cyclictest22798-21ssh10:35:003
2043799131,3cyclictest0-21swapper/309:57:483
2043799131,10cyclictest23679-21munin-run09:30:003
2043799131,10cyclictest0-21swapper/307:50:053
20437991310,2cyclictest0-21swapper/310:45:123
20437991310,2cyclictest0-21swapper/308:11:013
2043799130,2cyclictest11274-21ssh09:50:073
2043799130,2cyclictest0-21swapper/309:34:023
2043799130,12cyclictest0-21swapper/309:11:423
2043799130,11cyclictest22025-21sendmail-mta12:13:433
20436991310,2cyclictest6719-21kworker/u8:208:05:052
20436991310,2cyclictest31652-21kworker/u8:209:06:012
20436991310,2cyclictest16908-21kworker/u8:108:25:042
20436991310,2cyclictest0-21swapper/212:12:542
20436991310,2cyclictest0-21swapper/211:32:192
20436991310,2cyclictest0-21swapper/209:48:462
2043699130,2cyclictest0-21swapper/210:52:462
2043699130,2cyclictest0-21swapper/210:40:402
2043699130,2cyclictest0-21swapper/207:25:182
2043699130,12cyclictest24902-21ssh11:10:032
2043699130,12cyclictest0-21swapper/212:35:472
2043699130,12cyclictest0-21swapper/210:05:072
2043699130,12cyclictest0-21swapper/209:23:142
2043699130,12cyclictest0-21swapper/209:15:002
20435991310,2cyclictest0-21swapper/110:42:491
20434991310,2cyclictest21757-21kworker/u8:209:37:050
20434991310,2cyclictest0-21swapper/008:41:020
20434991310,2cyclictest0-21swapper/008:15:180
20434991310,2cyclictest0-21swapper/007:45:150
2043499130,2cyclictest0-21swapper/010:50:190
2043499130,2cyclictest0-21swapper/007:25:180
2043499130,12cyclictest0-21swapper/012:15:500
2043499130,12cyclictest0-21swapper/011:15:170
2043499130,12cyclictest0-21swapper/009:40:180
2043499130,12cyclictest0-21swapper/009:30:170
2043499130,11cyclictest0-21swapper/012:10:200
87882120,2sleep00-21swapper/011:59:510
50992120,2sleep30-21swapper/309:43:303
2043799129,2cyclictest0-21swapper/311:47:023
2043799129,2cyclictest0-21swapper/310:16:023
2043799129,2cyclictest0-21swapper/309:39:223
2043799129,2cyclictest0-21swapper/309:22:123
2043799129,2cyclictest0-21swapper/309:15:153
2043799129,2cyclictest0-21swapper/308:46:013
2043799129,2cyclictest0-21swapper/308:30:123
2043799128,2cyclictest0-21swapper/311:40:183
2043799127,3cyclictest0-21swapper/307:49:533
2043799122,7cyclictest0-21swapper/308:38:583
2043799121,8cyclictest4562-21gdm-simple-gree08:54:583
2043799120,2cyclictest0-21swapper/312:33:333
2043799120,2cyclictest0-21swapper/311:02:423
2043799120,2cyclictest0-21swapper/310:51:323
2043799120,11cyclictest0-21swapper/311:35:033
2043799120,11cyclictest0-21swapper/311:05:523
2043799120,11cyclictest0-21swapper/310:38:213
2043799120,11cyclictest0-21swapper/310:02:023
2043799120,11cyclictest0-21swapper/308:25:123
2043799120,10cyclictest0-21swapper/311:30:143
2043699129,2cyclictest26722-21aten2.4_r3power08:45:132
2043699129,2cyclictest18244-21kworker/u8:207:16:062
2043699129,2cyclictest16908-21kworker/u8:108:23:042
2043699129,2cyclictest0-21swapper/209:00:152
2043699120,2cyclictest0-21swapper/208:13:462
2043699120,11cyclictest0-21swapper/207:30:152
2043599126,4cyclictest18447-21sendmail-mta08:24:281
2043499129,2cyclictest0-21swapper/010:19:100
2043499129,2cyclictest0-21swapper/009:45:130
2043499129,2cyclictest0-21swapper/009:15:120
2043499129,2cyclictest0-21swapper/008:50:170
2043499120,2cyclictest0-21swapper/011:10:400
2043499120,2cyclictest0-21swapper/011:00:150
2043499120,2cyclictest0-21swapper/007:13:100
2043499120,1cyclictest4036-21diskmemload10:40:170
2043499120,11cyclictest0-21swapper/012:05:010
2043499120,11cyclictest0-21swapper/011:46:290
2043499120,11cyclictest0-21swapper/010:35:490
2043499120,11cyclictest0-21swapper/010:13:010
56402110,1sleep00-21swapper/009:10:290
2043799119,1cyclictest0-21swapper/312:25:533
2043799118,2cyclictest0-21swapper/312:03:333
2043799118,2cyclictest0-21swapper/307:55:143
2043799118,2cyclictest0-21swapper/307:40:173
2043799118,2cyclictest0-21swapper/307:11:033
2043799116,3cyclictest0-21swapper/310:10:153
2043799112,7cyclictest0-21swapper/307:25:013
2043799112,6cyclictest0-21swapper/307:33:583
2043799110,9cyclictest4036-21diskmemload10:43:053
2043699118,2cyclictest18244-21kworker/u8:207:11:042
2043699118,2cyclictest14429-21kworker/u8:008:15:042
2043699118,2cyclictest0-21swapper/207:37:362
2043599112,7cyclictest0-21swapper/107:34:591
2043599111,8cyclictest8755-21munin-node1
2043599110,10cyclictest0-21swapper/107:40:181
2043499118,2cyclictest0-21swapper/008:10:160
2043499111,2cyclictest0-21swapper/008:05:170
2043499110,2cyclictest0-21swapper/007:50:260
2043499110,1cyclictest0-21swapper/007:43:100
2043499110,10cyclictest0-21swapper/008:36:040
2043499110,10cyclictest0-21swapper/007:18:260
256272100,7sleep325631-21sed08:40:503
2043799107,2cyclictest4036-21diskmemload10:20:473
2043799107,2cyclictest0-21swapper/308:00:503
2043799102,7cyclictest0-21swapper/308:58:583
2043799102,7cyclictest0-21swapper/308:17:013
2043799102,5cyclictest0-21swapper/307:18:593
2043799101,7cyclictest0-21swapper/309:10:003
2043699107,2cyclictest31774-21kworker/u8:107:47:042
2043699107,2cyclictest20819-21kworker/u8:008:35:042
2043699105,3cyclictest0-21swapper/208:04:592
2043599102,5cyclictest0-21swapper/108:41:581
2043499107,2cyclictest26761-21kworker/u8:007:30:050
2043499107,2cyclictest0-21swapper/008:55:310
2043499107,2cyclictest0-21swapper/008:21:050
2043499107,2cyclictest0-21swapper/008:04:100
2043499107,2cyclictest0-21swapper/007:36:030
2043499100,3cyclictest2340-21munin-node0
187782100,1sleep00-21swapper/008:25:010
204379994,3cyclictest16882-21aten2.4_r3power08:20:133
204379994,3cyclictest0-21swapper/308:05:133
204379993,4cyclictest28275-21sshd07:27:263
204359991,5cyclictest0-21swapper/107:15:011
204349996,2cyclictest0-21swapper/007:55:170
204349991,4cyclictest0-21swapper/008:48:060
204349990,8cyclictest0-21swapper/008:30:290
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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