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2026-07-20 - 17:20

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 Mon Jul 20, 2026 12:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
433421250,1sleep24335-21ssh09:25:192
39882122111,6sleep00-21swapper/007:08:590
514521200,1sleep00-21swapper/010:00:120
3327210897,6sleep30-21swapper/307:05:543
3878210785,16sleep20-21swapper/207:07:332
3287210796,6sleep10-21swapper/107:05:361
150962820,1sleep30-21swapper/307:35:143
261942640,1sleep10-21swapper/109:48:181
9772550,1sleep10-21swapper/109:22:131
409899330,31cyclictest0-21swapper/208:20:112
4097992918,9cyclictest0-21swapper/109:35:121
212662290,2sleep09-21ksoftirqd/007:50:170
409999250,2cyclictest0-21swapper/309:30:103
4097992420,2cyclictest7921-21kworker/u8:211:15:041
409699241,3cyclictest12496-21munin-node0
4097992320,2cyclictest8730-21kworker/u8:109:03:051
4097992320,2cyclictest25743-21kworker/u8:312:20:051
4097992320,2cyclictest20290-21kworker/u8:009:08:011
409699230,3cyclictest3728-21runrttasks11:21:220
409699230,3cyclictest27530-21ssh09:50:030
409699230,3cyclictest0-21swapper/010:31:020
409699230,3cyclictest0-21swapper/009:15:150
409999220,20cyclictest0-21swapper/308:00:123
409799223,2cyclictest0-21swapper/112:39:041
4097992219,2cyclictest9229-21kworker/u8:011:51:041
4097992219,2cyclictest4387-21kworker/u8:107:14:011
4097992219,2cyclictest31694-21kworker/u8:207:50:051
4097992219,2cyclictest31694-21kworker/u8:207:23:041
4097992219,2cyclictest26538-21kworker/u8:008:18:021
4097992219,2cyclictest25743-21kworker/u8:312:03:041
4097992219,2cyclictest20719-21kworker/u8:108:04:011
4097992219,2cyclictest19108-21kworker/u8:012:30:041
4097992219,2cyclictest14826-21kworker/u8:208:56:041
4097992219,2cyclictest14826-21kworker/u8:208:56:041
4097992219,2cyclictest14676-21kworker/u8:111:23:041
409799221,18cyclictest0-21swapper/111:36:041
409799221,18cyclictest0-21swapper/110:18:021
409799220,2cyclictest0-21swapper/109:30:101
409699220,4cyclictest28615-21ssh10:24:100
409699220,3cyclictest9404-21grep07:20:170
409699220,3cyclictest7625-21sh11:08:510
409699220,3cyclictest31204-21ssh12:06:100
409699220,3cyclictest15464-21ssh10:10:140
409699220,3cyclictest11060-21df08:45:140
409699220,3cyclictest0-21swapper/012:28:500
409699220,3cyclictest0-21swapper/011:55:190
409699220,3cyclictest0-21swapper/011:46:140
409699220,3cyclictest0-21swapper/011:40:300
409699220,3cyclictest0-21swapper/011:15:140
409699220,3cyclictest0-21swapper/011:10:140
409699220,3cyclictest0-21swapper/010:25:420
409699220,3cyclictest0-21swapper/010:08:510
75982210,0sleep30-21swapper/311:41:333
409799212,2cyclictest0-21swapper/111:45:041
4097992118,2cyclictest31694-21kworker/u8:207:44:041
4097992118,2cyclictest31694-21kworker/u8:207:30:041
4097992118,2cyclictest25743-21kworker/u8:312:15:041
4097992118,2cyclictest16222-21kworker/u8:311:03:041
4097992118,2cyclictest16222-21kworker/u8:310:50:041
4097992118,2cyclictest1561-21kworker/u8:111:05:051
4097992118,2cyclictest10783-21kworker/u8:008:47:041
4096992110,9cyclictest0-21swapper/009:11:380
409699210,3cyclictest8363-21ssh12:16:220
409699210,3cyclictest5857-21ssh12:14:300
409699210,3cyclictest3767-21ssh09:25:150
409699210,3cyclictest28916-21ssh10:56:460
409699210,3cyclictest23096-21ssh10:18:150
409699210,3cyclictest0-21swapper/011:32:230
409699210,3cyclictest0-21swapper/011:25:140
409699210,3cyclictest0-21swapper/010:54:180
409699210,3cyclictest0-21swapper/009:00:150
409699210,3cyclictest0-21swapper/008:25:060
409699210,3cyclictest0-21swapper/007:45:180
409699210,2cyclictest0-21swapper/012:38:460
409699210,2cyclictest0-21swapper/010:41:350
409699210,2cyclictest0-21swapper/009:30:500
409699210,2cyclictest0-21swapper/009:23:060
409699210,2cyclictest0-21swapper/007:15:140
4098992017,2cyclictest7921-21kworker/u8:211:25:042
4098992017,2cyclictest7921-21kworker/u8:211:20:052
4098992017,2cyclictest25743-21kworker/u8:312:25:042
4098992017,2cyclictest20290-21kworker/u8:009:12:062
4097992017,2cyclictest6477-21kworker/u8:109:29:051
4097992017,2cyclictest30515-21kworker/u8:208:26:041
4097992017,2cyclictest20719-21kworker/u8:108:08:041
4097992017,2cyclictest20290-21kworker/u8:009:17:041
409799200,2cyclictest0-21swapper/111:34:051
409799200,18cyclictest0-21swapper/109:55:111
409699200,3cyclictest3728-21runrttasks08:51:380
409699200,3cyclictest0-21swapper/008:35:060
409699200,2cyclictest0-21swapper/012:30:140
409699200,2cyclictest0-21swapper/012:20:110
409699200,2cyclictest0-21swapper/011:38:220
409699200,2cyclictest0-21swapper/011:01:060
409699200,2cyclictest0-21swapper/010:46:540
409699200,2cyclictest0-21swapper/010:38:460
409699200,2cyclictest0-21swapper/009:55:100
409699200,2cyclictest0-21swapper/009:40:430
409699200,2cyclictest0-21swapper/009:37:020
409699200,2cyclictest0-21swapper/007:56:020
4098991916,2cyclictest25743-21kworker/u8:312:04:042
409799194,2cyclictest0-21swapper/109:14:041
4097991916,2cyclictest7921-21kworker/u8:211:26:041
4097991916,2cyclictest31694-21kworker/u8:207:47:041
4097991916,2cyclictest12494-21kworker/u8:007:38:011
409799190,2cyclictest0-21swapper/112:13:041
409799190,2cyclictest0-21swapper/110:36:041
409799190,2cyclictest0-21swapper/110:09:041
409699190,2cyclictest25786-21ssh12:00:340
409699190,2cyclictest24011-21ssh09:45:340
409699190,2cyclictest16194-21ssh11:50:380
4097991815,2cyclictest26538-21kworker/u8:008:14:011
409799181,2cyclictest0-21swapper/110:02:041
409699180,2cyclictest15241-21fschecks_time08:55:150
409699180,2cyclictest15241-21fschecks_time08:55:140
409699180,16cyclictest0-21swapper/008:10:510
409999178,6cyclictest17465-21ssh11:51:583
4099991712,3cyclictest9981-21taskset10:05:113
4099991712,3cyclictest25827-21ssh09:15:133
4098991714,2cyclictest16355-21kworker/u8:109:48:042
409799170,5cyclictest0-21swapper/110:14:041
409799170,4cyclictest0-21swapper/109:43:041
409799170,2cyclictest0-21swapper/112:07:041
409699170,2cyclictest122112sleep007:29:350
87492160,1sleep30-21swapper/312:16:593
409999161,13cyclictest0-21swapper/310:45:143
409999161,13cyclictest0-21swapper/310:34:283
4098991613,2cyclictest28784-21kworker/u8:210:15:052
4098991613,2cyclictest22143-21kworker/u8:010:42:012
4098991613,2cyclictest14105-21kworker/u8:111:50:012
4098991613,2cyclictest12004-21kworker/u8:110:45:042
409899161,13cyclictest0-21swapper/210:00:052
409799166,9cyclictest21-21rcuc/110:30:051
4097991613,2cyclictest23650-21kworker/u8:207:58:051
409799161,13cyclictest0-21swapper/107:15:151
409699161,4cyclictest5155-21fschecks_time08:30:150
409699161,4cyclictest31446-21grep08:15:160
409699160,3cyclictest0-21swapper/008:00:110
409999150,13cyclictest0-21swapper/311:20:183
409899151,2cyclictest3728-21runrttasks11:05:272
4098991512,2cyclictest4307-21kworker/u8:311:41:052
4098991512,2cyclictest31694-21kworker/u8:207:19:042
4098991512,2cyclictest30515-21kworker/u8:208:35:042
4098991512,2cyclictest28784-21kworker/u8:210:05:042
4098991512,2cyclictest25743-21kworker/u8:312:17:042
4098991512,2cyclictest23205-21kworker/u8:309:30:042
4098991512,2cyclictest14836-21kworker/u8:110:20:042
409899151,12cyclictest29500-21apt-get10:25:142
4098991510,3cyclictest7921-21kworker/u8:211:16:052
409799150,14cyclictest0-21swapper/110:55:041
409699152,3cyclictest9180-21grep08:40:150
409699152,3cyclictest19962-21swap09:06:030
409699152,3cyclictest16706-21cut07:40:130
409699151,4cyclictest527-21tail08:20:120
409699151,3cyclictest0-21swapper/008:05:120
409699151,3cyclictest0-21swapper/007:35:100
409699151,3cyclictest0-21swapper/007:10:390
409999149,3cyclictest21041-21rm09:42:533
409999141,11cyclictest17812-21ssh11:19:443
409999140,3cyclictest25704-21ssh09:47:333
409999140,2cyclictest0-21swapper/312:10:183
409999140,2cyclictest0-21swapper/310:27:293
409999140,2cyclictest0-21swapper/310:15:583
409999140,12cyclictest0-21swapper/310:51:053
409999140,12cyclictest0-21swapper/310:25:003
4098991411,2cyclictest7414-21kworker/u8:209:36:052
4098991411,2cyclictest6273-21kworker/u8:210:39:042
4098991411,2cyclictest30515-21kworker/u8:208:33:042
4098991411,2cyclictest14105-21kworker/u8:111:59:052
4098991411,2cyclictest0-21swapper/208:00:172
409899140,12cyclictest27906-21ssh12:36:542
409899140,12cyclictest13264-21ssh11:47:552
409899140,12cyclictest0-21swapper/211:36:282
409799149,3cyclictest0-21swapper/108:40:151
409799140,12cyclictest0-21swapper/111:12:211
409999132,6cyclictest0-21swapper/309:10:003
4099991310,2cyclictest1247-21ssh09:22:383
4099991310,2cyclictest0-21swapper/311:46:543
4099991310,2cyclictest0-21swapper/311:37:193
4099991310,2cyclictest0-21swapper/310:38:243
4099991310,2cyclictest0-21swapper/310:01:053
4099991310,2cyclictest0-21swapper/309:50:033
4099991310,2cyclictest0-21swapper/309:35:303
4099991310,2cyclictest0-21swapper/308:40:153
409999130,3cyclictest0-21swapper/309:55:443
409999130,2cyclictest17339-21ssh10:11:523
409999130,2cyclictest0-21swapper/312:04:583
409999130,2cyclictest0-21swapper/308:56:013
409999130,2cyclictest0-21swapper/308:56:013
409999130,12cyclictest0-21swapper/312:26:383
409999130,12cyclictest0-21swapper/312:05:163
409999130,12cyclictest0-21swapper/311:56:583
409999130,12cyclictest0-21swapper/310:59:583
409999130,12cyclictest0-21swapper/308:05:113
409999130,11cyclictest20586-21diskmemload11:28:543
409999130,11cyclictest0-21swapper/311:05:143
4098991310,2cyclictest4387-21kworker/u8:107:21:042
4098991310,2cyclictest26538-21kworker/u8:008:05:042
4098991310,2cyclictest2057-21ssh10:30:122
4098991310,2cyclictest16355-21kworker/u8:109:53:052
4098991310,2cyclictest12004-21kworker/u8:110:52:052
4098991310,2cyclictest10783-21kworker/u8:008:46:042
4098991310,2cyclictest0-21swapper/211:01:332
4098991310,2cyclictest0-21swapper/210:59:502
4098991310,2cyclictest0-21swapper/210:14:462
4098991310,2cyclictest0-21swapper/209:58:462
4098991310,2cyclictest0-21swapper/209:16:062
409899130,2cyclictest0-21swapper/212:12:362
409899130,2cyclictest0-21swapper/211:32:162
409899130,12cyclictest0-21swapper/211:10:132
409899130,12cyclictest0-21swapper/208:10:142
409799132,2cyclictest31545-21ssh09:54:051
409799131,3cyclictest23126-21ssh11:58:191
4097991310,2cyclictest0-21swapper/110:40:131
409799130,2cyclictest0-21swapper/112:27:481
409799130,2cyclictest0-21swapper/110:20:571
409799130,11cyclictest0-21swapper/107:25:101
298252131,2sleep220586-21diskmemload12:05:172
245342130,2sleep20-21swapper/207:59:412
409999129,2cyclictest11527-21copy10:40:003
409999129,2cyclictest0-21swapper/308:15:073
409999122,7cyclictest0-21swapper/308:36:593
409999122,6cyclictest0-21swapper/312:35:003
409999120,2cyclictest0-21swapper/311:00:593
409999120,2cyclictest0-21swapper/309:12:103
409999120,11cyclictest0-21swapper/312:30:223
409999120,11cyclictest0-21swapper/312:20:353
409999120,11cyclictest0-21swapper/311:33:033
409999120,11cyclictest0-21swapper/311:11:343
409999120,11cyclictest0-21swapper/309:26:003
409999120,11cyclictest0-21swapper/307:59:263
409999120,11cyclictest0-21swapper/307:15:173
409899129,2cyclictest31694-21kworker/u8:207:27:052
409899129,2cyclictest12494-21kworker/u8:007:39:052
409899129,2cyclictest0-21swapper/208:40:132
409899129,2cyclictest0-21swapper/207:53:142
409899122,7cyclictest4556-21metacity07:47:582
409899120,2cyclictest0-21swapper/212:30:052
409899120,2cyclictest0-21swapper/212:20:462
409899120,2cyclictest0-21swapper/208:50:162
409899120,11cyclictest0-21swapper/209:41:372
409899120,11cyclictest0-21swapper/209:20:332
409799129,2cyclictest0-21swapper/110:45:411
409799129,2cyclictest0-21swapper/108:20:161
409799121,9cyclictest12754-21apt-get08:50:111
409799121,3cyclictest4669-21munin-node1
409799120,2cyclictest0-21swapper/111:40:151
409799120,10cyclictest20586-21diskmemload10:25:311
409999118,2cyclictest0-21swapper/308:51:143
409899118,2cyclictest0-21swapper/208:25:052
409899112,6cyclictest0-21swapper/208:19:592
409799116,3cyclictest8140-21head08:36:051
409999107,2cyclictest0-21swapper/308:25:083
409999107,2cyclictest0-21swapper/308:20:393
409999107,2cyclictest0-21swapper/307:20:383
409999105,3cyclictest19963-21grep07:46:033
409999102,6cyclictest30678-21copy08:15:003
409999100,3cyclictest3649-21snmpd07:27:513
409899102,7cyclictest0-21swapper/207:32:012
409899100,8cyclictest0-21swapper/207:45:002
409899100,7cyclictest0-21swapper/209:03:592
40999995,2cyclictest0-21swapper/307:40:323
40999994,3cyclictest6040-21unixbench_multi08:31:033
40999994,3cyclictest5518-21mailstats07:11:023
40999994,3cyclictest10786-21aten2.4_r3power08:45:133
40999991,3cyclictest12866-21grep07:30:133
40999991,3cyclictest0-21swapper/309:00:183
40989996,2cyclictest0-21swapper/209:09:132
40999983,3cyclictest20658-21basename07:50:123
40989985,2cyclictest8730-21kworker/u8:108:55:042
40989985,2cyclictest8730-21kworker/u8:108:55:042
40989980,6cyclictest4583-21wc07:10:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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