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2026-06-12 - 03:40

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 all highest latencies:
System rack9slot4s (updated Fri Jun 12, 2026 00:59:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
207859911291077,48cyclictest0-21swapper/019:25:140
203282578531,31sleep10-21swapper/119:20:471
206422535488,32sleep00-21swapper/019:24:040
207869911597,15cyclictest0-21swapper/119:25:141
51421000,4sleep12078699cyclictest22:45:261
88152750,5sleep18813-21netstat20:15:231
218312390,4sleep02078599cyclictest22:15:280
20785993810,16cyclictest16266-21sh00:54:590
39042371,31sleep03950-21/usr/sbin/munin00:20:220
20786993721,10cyclictest14241-21users23:20:301
219542361,31sleep12695-21snmpd23:42:191
58372351,30sleep15980-21cpuspeed_turbos21:35:121
2078699351,30cyclictest0-21swapper/123:45:151
2078599349,12cyclictest32488-21missed_timers00:10:220
20785993416,6cyclictest26578-21wget22:30:130
200392341,9sleep00-21swapper/023:37:090
29102331,27sleep12225-21dbus-daemon00:18:521
20785993315,7cyclictest4505-21grep22:55:280
20785993314,7cyclictest18145-21wc20:40:210
20785993312,5cyclictest3286-21runrttasks20:33:540
20785993312,5cyclictest26552-21grep19:35:290
107572331,28sleep110825-21users21:45:281
20785993215,6cyclictest30803-21cron19:50:000
20785993215,5cyclictest32440-21diskstats22:45:150
20785993211,10cyclictest0-21swapper/021:00:250
316012311,4sleep131656-21memory19:50:201
2078699314,19cyclictest23342-21iostat_ios22:20:201
20785993115,5cyclictest2554-21iostat21:25:190
20785993114,5cyclictest13086-21wget23:20:110
20785993113,6cyclictest30963-21fschecks_count21:15:180
20785993113,6cyclictest30963-21fschecks_count21:15:170
20785993113,6cyclictest25562-21awk22:25:320
20785993113,15cyclictest0-21swapper/021:45:560
205282311,5sleep10-21swapper/122:13:291
19702311,8sleep00-21swapper/019:58:360
139602311,4sleep113969-21df_inode20:30:141
288142301,5sleep10-21swapper/119:43:511
20786993019,7cyclictest4456-21head00:20:291
20785993015,4cyclictest11565-21gdbus00:06:580
20785993013,6cyclictest6500-21fschecks_count20:10:140
20785993013,5cyclictest24463-21munin-run22:25:010
20785993013,5cyclictest16155-21irqstats20:35:200
20785993013,14cyclictest0-21swapper/019:53:030
20785993012,7cyclictest1903-21fschecks_count22:50:160
115372301,25sleep111577-21ntp_states00:40:251
91982291,5sleep00-21swapper/023:10:080
52802291,5sleep00-21swapper/021:31:210
32402291,5sleep10-21swapper/122:53:321
265692291,5sleep10-21swapper/121:03:491
258442291,5sleep00-21swapper/023:53:440
25572291,5sleep00-21swapper/000:16:000
248552291,5sleep10-21swapper/119:31:551
247652291,5sleep00-21swapper/020:59:440
2078699294,22cyclictest0-21swapper/100:25:521
2078699294,19cyclictest21141-21diskstats22:15:151
20786992919,6cyclictest20322-21ls23:40:001
20786992916,8cyclictest23677-21iostat_ios20:55:191
20786992914,8cyclictest26427-21diskstats23:55:151
2078699291,26cyclictest0-21swapper/123:02:061
2078599299,12cyclictest0-21swapper/000:36:430
20785992913,5cyclictest12874-21sort23:20:010
20785992913,12cyclictest8408-21missed_timers21:40:230
20785992911,9cyclictest0-21swapper/000:30:160
20785992911,6cyclictest11000-21grep20:20:280
20785992911,15cyclictest14265-21fgrep21:55:260
207722291,5sleep10-21swapper/120:47:151
202752291,5sleep00-21swapper/022:10:520
187212291,5sleep10-21swapper/122:09:111
149082291,5sleep10-21swapper/121:58:451
135002291,5sleep00-21swapper/020:29:530
103322291,5sleep10-21swapper/100:37:401
96242281,5sleep00-21swapper/020:18:480
9052281,5sleep10-21swapper/100:13:431
87332281,5sleep00-21swapper/023:06:530
53732281,5sleep10-21swapper/121:32:211
35462281,5sleep10-21swapper/122:55:051
321722281,5sleep10-21swapper/121:18:281
321722281,5sleep10-21swapper/121:18:271
302762281,5sleep10-21swapper/121:13:161
293452281,5sleep00-21swapper/000:00:550
288222281,5sleep00-21swapper/019:43:560
279222281,5sleep10-21swapper/122:32:021
268892281,5sleep10-21swapper/119:38:321
227462281,5sleep00-21swapper/020:53:150
226822281,5sleep10-21swapper/120:52:361
2078699284,18cyclictest28629-21iostat_ios00:00:211
2078599289,10cyclictest0-21swapper/023:45:170
2078599286,4cyclictest11565-21gdbus00:48:550
2078599286,13cyclictest0-21swapper/000:40:180
2078599283,8cyclictest23738-21diskstats19:30:140
20785992813,5cyclictest0-21swapper/021:23:010
2078599281,22cyclictest5685-21chrt23:00:120
2078599281,21cyclictest30298-21taskset22:40:120
20785992811,5cyclictest4559-21df20:05:140
20785992810,6cyclictest3199-21ntp_kernel_pll_20:00:230
20785992810,6cyclictest18692-21runrttasks22:08:530
20785992810,14cyclictest111rcuc/021:10:110
168812281,5sleep00-21swapper/022:04:320
132462281,5sleep10-21swapper/120:27:121
130002281,5sleep00-21swapper/021:53:230
77092271,5sleep10-21swapper/120:13:261
316992271,5sleep10-21swapper/122:42:061
307512271,5sleep10-21swapper/119:49:281
283722271,3sleep00-21swapper/022:35:110
282962271,5sleep10-21swapper/121:07:161
259492271,4sleep10-21swapper/122:26:011
255702271,4sleep10-21swapper/123:50:531
20786992717,6cyclictest18202-21strings20:40:211
2078599278,7cyclictest5498-21fschecks_time00:25:140
20785992711,11cyclictest16727-21/usr/sbin/munin23:30:200
17662271,5sleep10-21swapper/119:56:301
162232271,5sleep10-21swapper/122:00:301
141432271,5sleep10-21swapper/100:47:371
130802271,5sleep10-21swapper/121:54:141
124962271,5sleep10-21swapper/123:16:591
85532261,5sleep10-21swapper/100:33:391
2078699267,15cyclictest0-21swapper/121:25:211
2078699262,21cyclictest0-21swapper/120:35:201
2078699262,20cyclictest0-21swapper/120:00:171
20786992611,12cyclictest0-21swapper/123:07:181
2078599269,6cyclictest28034-21unixbench_multi21:05:270
2078599261,22cyclictest16381-21runrttasks23:28:050
164902261,5sleep10-21swapper/123:29:151
160792261,4sleep10-21swapper/100:53:151
112592261,5sleep10-21swapper/120:21:051
261892251,3sleep026349-21cpuspeed_turbos23:55:120
2078699254,17cyclictest0-21swapper/122:35:341
2078699252,18cyclictest2225-21dbus-daemon23:11:431
20786992516,6cyclictest22-21ksoftirqd/100:05:261
20786992516,5cyclictest1288-21sed21:20:301
2078699251,20cyclictest59122sleep120:09:131
2078599259,14cyclictest0-21swapper/020:46:160
20785992516,6cyclictest3-21ksoftirqd/021:38:470
20785992511,6cyclictest0-21swapper/023:40:260
2078699247,13cyclictest17218-21fw_packets23:30:171
20786992312,7cyclictest7978-21df_inode21:40:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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