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2026-06-01 - 17:01

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #1, 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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  Intel
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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 rack1slot6s.osadl.org (updated Mon Jun 01, 2026 12:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
219499890,5rtkit-daemon2193-21rtkit-daemon12:06:420
8803998229,45cyclictest0-21swapper/010:01:590
8803998129,44cyclictest14031diskmemload11:26:470
43592810,3sleep121-21ksoftirqd/110:45:001
8803997931,39cyclictest12734-21gltestperf10:56:540
8803997928,44cyclictest18277-21cat10:16:590
8803997926,45cyclictest0-21swapper/011:21:520
8803997924,23cyclictest0-21swapper/009:22:010
8803997826,45cyclictest0-21swapper/009:56:230
8803997825,34cyclictest0-21swapper/011:03:340
8803997824,45cyclictest0-21swapper/012:12:400
880399775,51cyclictest0-21swapper/009:51:370
8803997728,42cyclictest0-21swapper/009:01:580
8803997728,32cyclictest0-21swapper/010:24:510
8803997726,43cyclictest0-21swapper/012:16:470
8803997724,47cyclictest0-21swapper/009:07:100
8803997723,45cyclictest0-21swapper/007:26:170
219499770,4rtkit-daemon2193-21rtkit-daemon10:04:322
8803997631,35cyclictest26092-21ssh11:16:530
8803997631,35cyclictest26092-21ssh11:16:530
8803997630,39cyclictest5429-21diskmemload09:11:510
8803997630,39cyclictest5429-21diskmemload09:11:510
8803997530,38cyclictest15116-21unixbench_singl11:47:050
8803997529,40cyclictest3657-21df_abs11:31:450
8803997527,42cyclictest0-21swapper/010:32:000
8803997526,41cyclictest0-21swapper/009:19:410
8803997526,41cyclictest0-21swapper/009:19:410
8803997524,33cyclictest0-21swapper/012:26:340
8803997523,44cyclictest0-21swapper/010:12:050
8803997520,36cyclictest0-21swapper/011:37:000
237582750,4chrt23757-21expr07:36:562
8803997431,36cyclictest31548-21munin-node10:36:550
8803997431,36cyclictest31548-21munin-node10:36:550
8803997426,40cyclictest11065-21rm10:06:510
8803997425,41cyclictest0-21swapper/008:50:460
8803997424,42cyclictest0-21swapper/012:24:110
8803997423,45cyclictest0-21swapper/011:51:530
8803997423,31cyclictest0-21swapper/010:46:410
8803997422,44cyclictest0-21swapper/009:36:080
8803997421,46cyclictest0-21swapper/010:26:470
8803997329,35cyclictest21535-21ssh11:57:020
8803997329,35cyclictest21535-21ssh11:57:020
8803997327,40cyclictest0-21swapper/012:31:520
8803997327,38cyclictest0-21swapper/008:41:530
8803997323,34cyclictest0-21swapper/010:54:560
8803997321,46cyclictest0-21swapper/011:12:130
8803997321,44cyclictest0-21swapper/009:42:130
8803997320,37cyclictest0-21swapper/009:26:500
8803997320,35cyclictest0-21swapper/008:27:120
880899723,26cyclictest0-21swapper/209:32:432
8803997131,33cyclictest14163-21cpuspeed_turbos07:16:550
8803997125,39cyclictest0-21swapper/012:06:320
8803997125,38cyclictest0-21swapper/008:37:120
8803997125,22cyclictest0-21swapper/009:37:110
8803997122,42cyclictest0-21swapper/011:41:430
8803997026,37cyclictest0-21swapper/009:56:530
8803997026,37cyclictest0-21swapper/009:56:530
8803997023,39cyclictest0-21swapper/008:01:550
8803997023,36cyclictest0-21swapper/007:36:530
8803997022,43cyclictest0-21swapper/010:42:030
8803996926,36cyclictest0-21swapper/007:56:140
8803996926,36cyclictest0-21swapper/007:56:140
8803996827,35cyclictest28140-21aten2.4-expect07:46:520
8803996817,33cyclictest0-21swapper/011:10:310
8807996748,12cyclictest19600-21sed09:31:531
8803996724,36cyclictest0-21swapper/008:06:520
246402672,57sleep20-21swapper/211:15:092
880899664,53cyclictest0-21swapper/209:27:002
8803996640,17cyclictest8806-21systemd-cgroups07:06:420
8803996625,34cyclictest0-21swapper/007:33:320
140692664,54sleep20-21swapper/210:58:242
8803996519,39cyclictest0-21swapper/007:41:540
8809996421,23cyclictest4350-21ssh09:09:403
8803996426,12cyclictest13648-21latency_hist07:16:430
8803996419,38cyclictest0-21swapper/008:34:340
8803996417,41cyclictest0-21swapper/008:12:240
880899633,51cyclictest0-21swapper/212:01:472
8803996330,27cyclictest13308-21cut08:21:580
8803996322,34cyclictest0-21swapper/007:56:570
880999625,40cyclictest0-21swapper/309:17:543
880999625,40cyclictest0-21swapper/309:17:543
880899624,13cyclictest0-21swapper/212:16:532
8808996231,8cyclictest3817-21gltestperf08:02:032
8803996221,34cyclictest0-21swapper/008:57:090
8803996219,36cyclictest0-21swapper/007:07:150
880899613,13cyclictest0-21swapper/210:09:032
8803996126,27cyclictest19327-21fschecks_time07:27:000
8803996115,40cyclictest0-21swapper/008:17:110
8809996025,28cyclictest0-21swapper/310:17:103
8809996025,10cyclictest30273-21rm09:47:003
8809996024,13cyclictest26416-21diskstats09:41:523
8809996015,23cyclictest32389-21seq12:13:153
8808996030,14cyclictest0-21swapper/209:20:322
8808996030,14cyclictest0-21swapper/209:20:322
8803996020,35cyclictest0-21swapper/008:52:000
880999594,36cyclictest0-21swapper/312:09:213
880999592,36cyclictest0-21swapper/308:47:543
8809995918,23cyclictest11892-21aten_r1power_fr10:56:463
8809995918,18cyclictest19930-21ssh11:56:323
880899593,13cyclictest0-21swapper/212:28:472
8807995913,29cyclictest0-21swapper/109:42:001
250932592,9sleep30-21swapper/309:39:563
223962592,20sleep10-21swapper/107:32:121
219499590,4rtkit-daemon2193-21rtkit-daemon07:55:073
219499590,4rtkit-daemon2193-21rtkit-daemon07:55:073
219499590,4rtkit-daemon2193-21rtkit-daemon07:44:153
219499590,15rtkit-daemon2193-21rtkit-daemon12:04:203
880999585,31cyclictest0-21swapper/310:36:473
880999585,31cyclictest0-21swapper/310:36:473
880999585,30cyclictest0-21swapper/310:52:043
880999584,31cyclictest0-21swapper/307:31:523
880999584,27cyclictest0-21swapper/310:02:003
8808995820,22cyclictest1227-21runrttasks12:12:512
72792583,48sleep20-21swapper/210:48:202
259142582,47sleep10-21swapper/107:41:561
880999574,35cyclictest0-21swapper/311:02:133
8809995710,28cyclictest0-21swapper/310:47:053
880899574,12cyclictest0-21swapper/210:41:492
8807995739,12cyclictest0-21swapper/110:22:081
8807995736,13cyclictest0-21swapper/108:26:391
219762574,46sleep30-21swapper/309:35:533
219499570,4rtkit-daemon2193-21rtkit-daemon08:38:433
219499570,2rtkit-daemon0-21swapper/311:35:443
880999565,30cyclictest0-21swapper/310:14:403
880899564,38cyclictest0-21swapper/210:56:222
880899564,34cyclictest0-21swapper/211:03:382
880899563,8cyclictest11386-21python11:42:022
8808995623,27cyclictest0-21swapper/210:32:542
8807995642,8cyclictest29592-21munin-node09:46:511
880799564,40cyclictest0-21swapper/112:10:391
8807995639,11cyclictest0-21swapper/107:11:551
8807995636,14cyclictest0-21swapper/110:16:591
8807995635,14cyclictest0-21swapper/111:21:551
880799563,45cyclictest993-21cat12:16:321
8807995626,13cyclictest0-21swapper/109:58:271
8807995626,13cyclictest0-21swapper/109:58:271
8807995614,33cyclictest7391-21cpuspeed_turbos10:01:491
36352562,10sleep30-21swapper/309:56:413
36352562,10sleep30-21swapper/309:56:413
880899553,38cyclictest0-21swapper/211:50:132
880899553,12cyclictest0-21swapper/210:11:572
8807995541,8cyclictest24937-21iostat_ios10:26:581
309662553,45sleep30-21swapper/311:23:373
219499550,6rtkit-daemon2193-21rtkit-daemon08:22:143
219499550,5rtkit-daemon2193-21rtkit-daemon11:45:063
880999545,31cyclictest0-21swapper/309:26:583
880899544,32cyclictest0-21swapper/207:16:542
880899544,23cyclictest0-21swapper/210:37:352
880899544,23cyclictest0-21swapper/210:37:352
880899543,35cyclictest0-21swapper/209:24:532
8808995420,20cyclictest0-21swapper/211:24:582
880799549,36cyclictest0-21swapper/111:01:561
8807995435,13cyclictest0-21swapper/109:23:341
8807995430,15cyclictest0-21swapper/112:21:491
40432542,10sleep10-21swapper/109:08:381
219499540,5rtkit-daemon2193-21rtkit-daemon11:12:003
219499540,5rtkit-daemon2193-21rtkit-daemon10:45:083
880999535,11cyclictest20459-21df11:56:453
880999535,11cyclictest20459-21df11:56:453
880999534,34cyclictest0-21swapper/309:52:113
880999534,26cyclictest23004-21seq10:24:233
8809995322,13cyclictest0-21swapper/307:51:423
8809995317,12cyclictest30101-21gltestperf08:56:583
880899537,34cyclictest0-21swapper/211:58:442
880899537,34cyclictest0-21swapper/211:58:442
880899534,29cyclictest0-21swapper/209:46:532
880899533,43cyclictest0-21swapper/207:56:512
880899533,32cyclictest19288-21ssh10:18:082
880899533,11cyclictest0-21swapper/212:33:122
880899533,11cyclictest0-21swapper/212:09:472
8808995311,26cyclictest0-21swapper/211:31:552
880799534,43cyclictest0-21swapper/112:16:581
8807995333,12cyclictest8608-21munin-node09:17:051
8807995333,12cyclictest8608-21munin-node09:17:051
8807995331,15cyclictest0-21swapper/110:56:461
8807995330,17cyclictest0-21swapper/111:28:021
75182533,10sleep20-21swapper/212:25:402
273802534,43sleep10-21swapper/111:17:501
273802534,43sleep10-21swapper/111:17:501
222682532,9sleep10-21swapper/111:58:221
222682532,9sleep10-21swapper/111:58:221
210442533,7sleep321049-21ssh11:09:183
110412533,44sleep10-21swapper/110:54:441
98542522,9sleep30-21swapper/308:15:433
91802523,7sleep39259-21missed_timers12:26:543
8809995223,11cyclictest28099-21gltestperf10:31:553
880899524,30cyclictest0-21swapper/209:42:082
880899524,29cyclictest0-21swapper/210:22:102
880899524,28cyclictest0-21swapper/211:37:042
880899523,35cyclictest0-21swapper/209:14:412
880899523,35cyclictest0-21swapper/209:14:412
880899523,28cyclictest0-21swapper/211:31:332
880899523,28cyclictest0-21swapper/208:32:022
880899523,23cyclictest0-21swapper/211:09:522
880799524,15cyclictest0-21swapper/110:40:151
880799524,15cyclictest0-21swapper/110:40:151
8807995235,12cyclictest0-21swapper/110:11:491
8807995235,12cyclictest0-21swapper/108:27:061
8807995233,13cyclictest0-21swapper/111:52:411
8807995233,12cyclictest0-21swapper/109:52:081
8807995221,13cyclictest0-21swapper/108:11:591
245652522,43sleep10-21swapper/109:38:011
219499520,5rtkit-daemon2193-21rtkit-daemon12:31:413
219499520,5rtkit-daemon2193-21rtkit-daemon10:29:393
193542522,42sleep10-21swapper/108:35:081
95092512,9sleep10-21swapper/111:41:121
880999515,15cyclictest0-21swapper/311:41:053
880999514,29cyclictest0-21swapper/309:22:103
8809995123,11cyclictest2408-21sshd11:29:553
880899514,29cyclictest0-21swapper/209:51:542
880899514,29cyclictest0-21swapper/207:45:162
880899514,28cyclictest0-21swapper/209:07:042
880899514,28cyclictest0-21swapper/207:12:102
880899513,9cyclictest25430-21basename11:16:462
880899513,9cyclictest25430-21basename11:16:462
880899513,31cyclictest0-21swapper/211:56:122
880899513,25cyclictest0-21swapper/207:46:522
8808995123,22cyclictest0-21swapper/208:39:232
880799515,40cyclictest0-21swapper/110:07:011
880799515,28cyclictest0-21swapper/111:32:021
880799515,27cyclictest29740-21rm10:34:241
880799514,40cyclictest0-21swapper/109:27:041
880799514,29cyclictest0-21swapper/108:56:521
880799514,13cyclictest0-21swapper/111:12:051
66792513,40sleep30-21swapper/312:22:393
219499510,5rtkit-daemon2193-21rtkit-daemon12:17:123
219499510,5rtkit-daemon2193-21rtkit-daemon10:07:403
880999505,28cyclictest0-21swapper/307:12:153
880999505,14cyclictest0-21swapper/308:51:563
880999504,28cyclictest26346-21if_eth011:16:563
880999504,28cyclictest26346-21if_eth011:16:563
880999504,27cyclictest0-21swapper/307:06:433
8809995021,13cyclictest0-21swapper/308:02:123
880899504,28cyclictest0-21swapper/209:36:472
880899504,28cyclictest0-21swapper/208:12:062
880899504,26cyclictest0-21swapper/209:56:532
880899504,26cyclictest0-21swapper/209:56:532
880899502,22cyclictest0-21swapper/210:27:552
880799505,38cyclictest0-21swapper/112:27:001
880799504,29cyclictest0-21swapper/112:03:571
880799504,28cyclictest0-21swapper/108:07:061
880799504,12cyclictest0-21swapper/109:04:391
8807995035,11cyclictest0-21swapper/111:07:001
8807995034,11cyclictest0-21swapper/111:46:461
241692502,9sleep10-21swapper/108:45:401
219499500,5rtkit-daemon2193-21rtkit-daemon09:13:423
219499500,5rtkit-daemon2193-21rtkit-daemon09:13:423
219499500,5rtkit-daemon2193-21rtkit-daemon08:44:353
880999494,28cyclictest0-21swapper/308:17:083
880999494,28cyclictest0-21swapper/307:22:183
880999494,28cyclictest0-21swapper/307:07:073
8809994920,13cyclictest0-21swapper/308:27:053
8808994919,12cyclictest0-21swapper/208:41:572
8808994918,13cyclictest0-21swapper/208:52:002
880799494,37cyclictest5749-21df_abs09:11:531
880799494,37cyclictest5749-21df_abs09:11:531
880799494,28cyclictest0-21swapper/107:57:031
880999485,24cyclictest0-21swapper/311:50:013
880899484,27cyclictest0-21swapper/207:51:522
880899484,27cyclictest0-21swapper/207:51:522
880899484,26cyclictest0-21swapper/207:32:082
880899484,26cyclictest0-21swapper/207:24:202
880899483,26cyclictest13304-21fschecks_time08:21:582
880799487,36cyclictest201ktimersoftd/107:22:001
880799484,27cyclictest0-21swapper/110:48:061
880799484,27cyclictest0-21swapper/107:27:061
880799483,13cyclictest0-21swapper/112:32:541
8807994827,14cyclictest0-21swapper/107:52:101
8807994827,14cyclictest0-21swapper/107:52:101
68552482,9sleep20-21swapper/208:07:122
219499480,4rtkit-daemon2193-21rtkit-daemon08:06:523
880999474,26cyclictest0-21swapper/307:27:153
880999474,25cyclictest0-21swapper/307:59:263
8809994717,13cyclictest0-21swapper/308:31:563
8809994716,13cyclictest0-21swapper/307:41:413
880899474,24cyclictest0-21swapper/208:16:512
880899473,25cyclictest9027-21munin-node07:07:102
880899472,18cyclictest0-21swapper/209:02:192
880799475,27cyclictest0-21swapper/111:43:511
880799474,27cyclictest0-21swapper/108:01:451
8807994726,14cyclictest0-21swapper/107:47:111
8807994716,13cyclictest0-21swapper/107:36:591
219499470,4rtkit-daemon2193-21rtkit-daemon08:26:512
880999465,13cyclictest0-21swapper/309:02:073
8809994634,8cyclictest14097-21cpuspeed_turbos07:16:553
880899464,25cyclictest0-21swapper/208:58:562
880899463,27cyclictest0-21swapper/207:27:022
880799463,26cyclictest0-21swapper/108:19:321
8807994627,13cyclictest0-21swapper/107:10:131
8807994627,12cyclictest25237-21fschecks_time08:46:561
85042464,6sleep10-21swapper/107:03:151
268342462,9sleep10-21swapper/108:51:411
215472462,36sleep10-21swapper/108:37:341
138002462,10sleep10-21swapper/107:16:521
880899443,25cyclictest25931-21runrttasks08:47:072
219499430,4rtkit-daemon2193-21rtkit-daemon07:02:322
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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