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2026-06-06 - 08:59

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #9, slot #4

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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rack9slot4s (updated Sat Jun 06, 2026 00:59:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
33159912341219,12cyclictest0-21swapper/119:25:161
33149912011157,31cyclictest3950-21perl19:25:170
30172576531,29sleep00-21swapper/019:22:290
30592549505,29sleep10-21swapper/119:22:561
3245721000,6sleep10-21swapper/122:05:171
126482420,9sleep0331499cyclictest19:45:270
140142410,9sleep0331499cyclictest21:15:260
278722380,3sleep0111rcuc/023:20:120
331499361,20cyclictest17478-21grep20:00:130
15262361,31sleep12695-21snmpd20:44:251
26232351,30sleep12679-21users22:10:291
163952351,30sleep016404-21munin-run22:50:010
135232341,29sleep113653-21cpu19:50:121
297142331,3sleep129814-21users20:30:301
130062331,4sleep113007-21sshd19:46:301
331499322,17cyclictest0-21swapper/021:51:300
3314993217,8cyclictest5215-21diskstats23:45:140
331499321,16cyclictest3201-21cron22:15:010
283982321,27sleep128448-21iostat23:20:201
261512321,26sleep00-21swapper/021:50:010
3315993121,6cyclictest24469-21wget21:45:111
3314993110,17cyclictest7448-21chrt19:32:260
232342311,5sleep10-21swapper/100:31:421
197462311,26sleep119751-21irqstats20:05:201
167732311,4sleep116791-21iostat_ios00:15:191
98772300,4sleep0111rcuc/021:05:160
331499302,16cyclictest0-21swapper/023:13:560
331499301,25cyclictest3601-21munin-plugin-st20:50:000
331499301,25cyclictest3601-21munin-plugin-st20:50:000
331499301,20cyclictest0-21swapper/000:38:190
331499301,13cyclictest15366-21latency_hist19:55:010
181142301,5sleep00-21swapper/022:53:220
125462301,5sleep10-21swapper/122:39:101
100682301,5sleep00-21swapper/023:56:440
88172291,5sleep00-21swapper/022:29:270
81012291,5sleep00-21swapper/023:50:470
69902291,5sleep00-21swapper/020:56:280
60152291,3sleep00-21swapper/022:20:230
49002291,5sleep10-21swapper/122:17:581
46332291,5sleep00-21swapper/023:43:450
331599294,18cyclictest17218-21diskstats21:25:141
331499294,19cyclictest22500-21diskstats23:05:140
331499291,24cyclictest12603-21cron21:10:590
319462291,4sleep10-21swapper/120:37:591
310992291,5sleep10-21swapper/100:54:501
309442291,5sleep00-21swapper/000:53:120
264612291,5sleep00-21swapper/020:24:290
241952291,5sleep00-21swapper/020:15:390
240722291,5sleep00-21swapper/021:42:530
238172291,24sleep123821-21pidof23:09:001
234482291,5sleep00-21swapper/000:33:560
223192291,5sleep00-21swapper/021:39:220
216072291,5sleep00-21swapper/023:00:300
201982291,5sleep00-21swapper/021:31:480
201982291,5sleep00-21swapper/021:31:470
188452291,5sleep10-21swapper/120:03:311
184912291,5sleep00-21swapper/021:28:310
179052291,5sleep00-21swapper/000:19:590
11912291,5sleep00-21swapper/020:41:000
10092291,5sleep00-21swapper/023:35:030
91092281,5sleep00-21swapper/021:03:480
75392281,5sleep10-21swapper/119:33:261
3315992815,10cyclictest22-21ksoftirqd/119:35:271
3315992812,13cyclictest22-21ksoftirqd/121:38:231
331499282,13cyclictest18559-21perl00:20:140
331499282,12cyclictest12291-21cron00:05:000
331499281,22cyclictest31903-21diskstats23:30:150
33092281,5sleep10-21swapper/120:47:181
33092281,5sleep10-21swapper/120:47:181
312632281,5sleep00-21swapper/023:28:070
310172281,5sleep10-21swapper/123:25:351
299932281,5sleep00-21swapper/020:32:090
298712281,5sleep00-21swapper/021:59:400
279092281,4sleep10-21swapper/121:53:481
270152281,5sleep00-21swapper/000:41:490
24182281,5sleep10-21swapper/123:36:251
218322281,5sleep10-21swapper/123:02:501
214402281,5sleep10-21swapper/100:27:311
201462281,5sleep10-21swapper/121:31:141
201462281,5sleep10-21swapper/121:31:131
200692281,5sleep00-21swapper/022:59:110
200692281,5sleep00-21swapper/022:59:110
179312281,5sleep10-21swapper/122:51:281
144422281,5sleep00-21swapper/022:44:110
140762281,5sleep10-21swapper/100:09:101
138562281,5sleep00-21swapper/000:06:540
122252281,5sleep00-21swapper/022:35:510
100822281,5sleep10-21swapper/123:56:531
84652271,5sleep10-21swapper/122:25:491
65092271,5sleep10-21swapper/123:48:451
331599273,8cyclictest6217-21iostat_ios20:55:211
331599273,18cyclictest8110-21iostat_ios21:00:181
331599273,18cyclictest30691-21irqstats22:00:201
331599273,18cyclictest23198-21diskstats20:15:151
331599272,21cyclictest0-21swapper/123:15:281
3315992715,7cyclictest10814-21cron21:07:001
331499274,17cyclictest21324-21diskstats20:10:150
331499273,17cyclictest10038-21df19:40:120
3314992720,5cyclictest0-21swapper/000:13:580
331499271,13cyclictest9135-21cut22:30:130
331499271,13cyclictest26010-21wget23:15:100
331499271,13cyclictest19985-21ntp_states20:05:240
3314992711,14cyclictest0-21swapper/021:21:340
3314992711,14cyclictest0-21swapper/020:51:170
297592271,5sleep10-21swapper/121:58:301
270712271,5sleep10-21swapper/100:42:231
264952271,5sleep10-21swapper/120:24:501
252532271,5sleep10-21swapper/100:38:121
213662271,3sleep00-21swapper/000:26:460
210282271,4sleep10-21swapper/120:10:101
197292271,5sleep10-21swapper/122:55:411
197292271,5sleep10-21swapper/122:55:411
158952271,5sleep10-21swapper/100:13:361
153762271,5sleep10-21swapper/119:55:071
147742271,5sleep10-21swapper/121:19:031
142692271,5sleep10-21swapper/122:42:231
112622271,5sleep10-21swapper/121:10:051
104992271,5sleep10-21swapper/122:32:261
331599263,7cyclictest4340-21iostat_ios20:50:191
331599263,17cyclictest14981-21diskstats22:45:151
3315992616,6cyclictest19222-21sort00:20:271
289612261,4sleep10-21swapper/100:47:131
119912261,4sleep10-21swapper/100:02:001
331599259,4cyclictest15540-21fw_packets21:20:181
331599252,20cyclictest0-21swapper/120:26:161
3315992517,5cyclictest22-21ksoftirqd/122:24:051
3315992511,10cyclictest0-21swapper/123:10:251
331499258,14cyclictest2221-21cron22:04:590
331499256,6cyclictest5099-21cron22:20:000
331499252,16cyclictest15673-21df_inode19:55:140
331499251,13cyclictest0-21swapper/022:05:180
318032251,4sleep00-21swapper/020:36:290
331599243,17cyclictest0-21swapper/121:40:291
3315992414,6cyclictest433-21runrttasks23:30:351
3315992410,11cyclictest0-21swapper/119:41:071
331499248,12cyclictest0-21swapper/019:38:140
331499242,16cyclictest28114-21/usr/sbin/munin00:45:180
331499241,19cyclictest26762-21/usr/sbin/munin20:25:110
3315992315,5cyclictest22-21ksoftirqd/123:52:351
331599222,15cyclictest3339-21diskstats23:40:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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