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2026-06-10 - 08:32

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 376 highest latencies:
System rack9slot4s (updated Wed Jun 10, 2026 00:59:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
111769912281196,27cyclictest0-21swapper/119:25:111
111759911591124,24cyclictest0-21swapper/019:25:120
111052608560,33sleep00-21swapper/019:24:500
110562586543,29sleep10-21swapper/119:24:191
113992740,3sleep041ktimersoftd/023:40:170
113992740,3sleep041ktimersoftd/023:40:170
11322450,9sleep01117599cyclictest00:40:130
1117599406,5cyclictest81rcu_preempt23:45:230
11176993613,5cyclictest7836-21/usr/sbin/munin20:40:211
11176993526,5cyclictest5233-21/usr/sbin/munin00:50:161
6122340,5sleep1201rcuc/123:10:291
27802341,9sleep00-21swapper/023:16:330
1117599347,7cyclictest30918-21/usr/sbin/munin23:05:250
209102331,28sleep120914-21irqstats00:05:241
11176993216,13cyclictest22-21ksoftirqd/121:39:051
11175993213,5cyclictest13358-21memory19:30:010
200792311,5sleep10-21swapper/122:35:511
11175993118,7cyclictest26947-21diskstats21:30:150
11175993118,7cyclictest26947-21diskstats21:30:140
11175993112,4cyclictest21647-21latency21:15:240
11175993111,5cyclictest20049-21awk22:35:290
1117599311,12cyclictest51862cat23:25:010
11175993110,7cyclictest17100-21idleruntime-cro21:05:000
305562301,5sleep10-21swapper/120:14:391
260382301,5sleep00-21swapper/021:25:310
226472301,5sleep10-21swapper/119:50:371
20282301,25sleep10-21swapper/121:50:151
154022300,3sleep0111rcuc/022:25:150
1117699301,25cyclictest14042-21grep19:30:131
1117599301,25cyclictest20594-21df00:05:160
90382291,5sleep00-21swapper/022:08:230
84282291,5sleep10-21swapper/123:30:441
315062291,5sleep10-21swapper/123:07:091
292152291,5sleep00-21swapper/000:26:350
251212291,5sleep00-21swapper/020:00:050
241482291,5sleep10-21swapper/122:48:581
239342291,5sleep00-21swapper/022:46:440
199552291,5sleep00-21swapper/000:03:020
199052291,5sleep10-21swapper/100:02:341
187032291,5sleep10-21swapper/121:07:241
12452291,5sleep00-21swapper/021:46:480
118922291,5sleep00-21swapper/020:50:150
1117699292,24cyclictest26895-21irqstats22:55:211
11176992917,6cyclictest17905-21diskstats19:40:151
1117599294,12cyclictest5838-21cat22:00:120
1117599293,19cyclictest24058-21ntp_states19:55:240
1117599291,15cyclictest1730-21basename21:50:090
1117599291,14cyclictest20667-21/usr/sbin/munin22:40:210
11175992911,16cyclictest0-21swapper/020:12:510
11175992910,7cyclictest8843-21mailstats20:40:280
1117599290,4cyclictest81rcu_preempt21:40:440
10932291,5sleep00-21swapper/023:13:580
109132291,5sleep00-21swapper/022:13:240
101902291,3sleep110280-21processes22:10:251
48542281,5sleep10-21swapper/123:22:341
47212281,5sleep10-21swapper/100:49:281
37782281,5sleep00-21swapper/020:28:450
309922281,5sleep10-21swapper/100:30:321
295372281,4sleep00-21swapper/023:01:130
279922281,4sleep00-21swapper/022:59:550
228862281,5sleep10-21swapper/121:20:031
223412281,5sleep10-21swapper/122:44:391
207722281,5sleep00-21swapper/021:14:190
205402281,5sleep10-21swapper/121:11:561
194762281,5sleep10-21swapper/119:45:071
132932281,5sleep10-21swapper/120:54:531
126022281,5sleep10-21swapper/122:16:221
113842281,4sleep00-21swapper/020:49:340
113842281,4sleep00-21swapper/020:49:330
1117699289,14cyclictest2225-21dbus-daemon23:39:311
1117699284,9cyclictest24711-21diskstats22:50:141
1117699283,18cyclictest1310-21df00:40:151
1117699282,22cyclictest17371-21ntp_states23:55:261
11176992815,7cyclictest21603-21iostat_ios21:15:231
11176992810,14cyclictest32116-21runrttasks20:16:201
1117599289,6cyclictest24556-21/usr/sbin/munin00:15:180
1117599283,3cyclictest81rcu_preempt00:30:380
11175992812,12cyclictest7748-21latency_hist20:40:010
11175992811,5cyclictest17879-21cut21:05:220
1117599281,13cyclictest15790-21aten_r4power_po19:35:130
11175992811,15cyclictest0-21swapper/020:08:550
11175992810,6cyclictest12216-21mailstats22:15:260
108942281,5sleep10-21swapper/123:40:071
108942281,5sleep10-21swapper/123:40:071
104662281,5sleep00-21swapper/023:37:250
89462271,5sleep10-21swapper/122:07:251
72792271,5sleep10-21swapper/120:36:091
70762271,5sleep10-21swapper/122:02:291
66842271,5sleep10-21swapper/123:27:041
50652271,5sleep10-21swapper/121:56:171
321132271,5sleep10-21swapper/121:44:461
248352271,5sleep10-21swapper/119:58:531
173032271,5sleep10-21swapper/119:38:461
150202271,5sleep00-21swapper/020:58:180
150032271,5sleep10-21swapper/120:58:071
144332271,5sleep10-21swapper/122:20:391
141922271,5sleep10-21swapper/123:46:531
11176992718,5cyclictest5253-21unixbench_multi20:30:301
1117599279,5cyclictest7730-21irqstats23:30:200
1117599278,7cyclictest24644-21cat22:50:110
1117599278,6cyclictest5223-21df00:50:160
1117599273,9cyclictest31884-21diskstats00:35:130
1117599273,11cyclictest0-21swapper/019:41:520
1117599272,13cyclictest11565-21gdbus21:59:180
1117599271,21cyclictest15024-21fschecks_count23:50:150
11175992712,13cyclictest0-21swapper/000:23:220
11175992711,4cyclictest4357-21df_inode20:30:140
1117599271,13cyclictest4678-21cron00:49:000
1117599271,13cyclictest0-21swapper/021:35:180
11175992710,5cyclictest18068-21runrttasks23:58:070
11175992710,15cyclictest0-21swapper/019:54:450
264022261,5sleep10-21swapper/121:29:061
17632261,5sleep10-21swapper/120:23:271
150162261,4sleep10-21swapper/122:25:111
12372261,4sleep10-21swapper/121:46:421
1117699263,18cyclictest24893-21ntp_states00:15:301
1117699262,20cyclictest0-21swapper/100:35:241
1117599269,13cyclictest221752chrt00:10:060
1117599262,15cyclictest0-21swapper/023:25:300
1117599261,23cyclictest0-21swapper/020:24:070
11175992610,14cyclictest0-21swapper/019:47:140
161702251,5sleep10-21swapper/123:52:561
1117699259,12cyclictest0-21swapper/122:30:281
11176992516,6cyclictest22-21ksoftirqd/121:33:251
11176992516,6cyclictest22-21ksoftirqd/121:33:251
11176992515,6cyclictest3060-21runrttasks23:18:431
11176992510,3cyclictest0-21swapper/100:10:191
1117599251,15cyclictest0-21swapper/020:15:220
110612251,5sleep10-21swapper/120:46:161
110612251,5sleep10-21swapper/120:46:161
1117699248,13cyclictest28323-21fw_packets00:25:181
1117699246,13cyclictest40250irq/92-i91523:00:141
11176992416,5cyclictest22-21ksoftirqd/121:01:301
11176992416,5cyclictest22-21ksoftirqd/120:01:521
1117699241,19cyclictest26783-21ntp_states00:20:231
1117599243,16cyclictest17907-21python22:30:280
1117599242,17cyclictest23087-21cpuspeed_turbos21:20:120
1117599241,12cyclictest0-21swapper/022:22:360
1117699232,15cyclictest3453-21users20:25:301
11176992211,7cyclictest27837-21sh20:05:241
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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