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2025-12-10 - 15:26

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #b, slot #5

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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  Phytec
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.

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 100 highest latencies:
System rackbslot5s.osadl.org (updated Wed Dec 10, 2025 00:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1092340994921,23cyclictest0-21swapper/321:45:253
1092334994840,5cyclictest1120101-21unixbench_multi20:25:282
1092340994732,11cyclictest391ktimers/321:50:133
1092327994637,5cyclictest1118872-21cron20:25:010
1092327994634,8cyclictest1193094-21idleruntime-cro00:00:000
1092340994433,8cyclictest391ktimers/321:30:133
109234099438,6cyclictest1139539-21seq21:22:143
109234099438,6cyclictest1139539-21seq21:22:143
109234099431,9cyclictest1197175-21/usr/sbin/munin00:10:213
109234099431,10cyclictest1182992-21/usr/sbin/munin23:30:163
109234099431,10cyclictest1124573-21irqstats20:40:193
1092327994323,16cyclictest1156565-21grep22:10:250
109234099429,7cyclictest1153543-21seq22:04:003
1092340994212,26cyclictest1185588-21tail23:35:263
109234099421,11cyclictest1116138-21meminfo20:15:233
1092327994233,6cyclictest121ktimers/022:20:130
1092327994233,6cyclictest121ktimers/022:20:130
1092327994232,7cyclictest121ktimers/019:35:150
109234099415,4cyclictest1100663-21ntp_kernel_pll_19:30:203
1092340994114,24cyclictest1144491-21timerandwakeup21:35:273
109234099411,10cyclictest1181743-21/usr/sbin/munin23:25:233
1092334994131,7cyclictest1206953-21sendmail00:40:002
109234099401,9cyclictest1109556-21/usr/sbin/munin19:55:233
1092340994019,17cyclictest0-21swapper/322:55:193
109234099401,8cyclictest1094792-21/usr/sbin/munin19:15:273
109234099401,11cyclictest1103992-21meminfo19:40:193
109234099401,11cyclictest1103992-21meminfo19:40:183
109234099401,10cyclictest1198544-21diskstats00:15:163
1092334994033,5cyclictest1151750-21kworker/u8:2+events_unbound22:12:122
1092334994033,5cyclictest1130703-21kworker/u8:0+events_unbound21:02:012
1092331994030,6cyclictest0-21swapper/122:32:141
1092331994025,11cyclictest231ktimers/123:35:131
1092327994031,4cyclictest1131009-21sh21:00:000
1092327994028,7cyclictest1106294-21grep19:45:260
1092327994028,7cyclictest1106294-21grep19:45:260
109234099393,7cyclictest1180852-21taskset23:24:083
109234099392,9cyclictest1190017-21diskstats23:50:163
109234099392,9cyclictest1167273-21cron22:45:013
109234099391,9cyclictest1157371-21df22:15:143
109234099391,9cyclictest1153992-21/usr/sbin/munin22:05:183
109234099391,9cyclictest1150780-21irqstats21:55:193
109234099391,8cyclictest1186802-21/usr/sbin/munin23:40:183
1092340993916,20cyclictest0-21swapper/300:35:173
1092340993915,21cyclictest1119330-21fschecks_time20:25:203
1092340993913,23cyclictest0-21swapper/319:20:503
1092340993912,4cyclictest1094058-21munin-node19:15:023
109234099391,12cyclictest1131543-21/usr/sbin/munin21:00:183
109234099391,11cyclictest1191720-21diskstats23:55:183
109234099391,11cyclictest1163412-21grep22:30:273
109234099391,11cyclictest1122851-21irqstats20:35:173
109234099391,10cyclictest1174786-21runrttasks23:05:193
1092331993927,8cyclictest0-21swapper/121:30:251
109234099388,6cyclictest1188548-21cut23:45:183
109234099388,5cyclictest1136818-21/usr/sbin/munin21:15:213
109234099387,5cyclictest1135525-21ls21:10:263
109234099381,8cyclictest1162157-21cron22:30:003
109234099381,8cyclictest1120966-21fschecks_count20:30:153
1092340993812,4cyclictest1105248-21/usr/sbin/munin19:45:223
1092340993812,4cyclictest1105248-21/usr/sbin/munin19:45:223
1092340993812,22cyclictest1127605-21cron20:50:003
1092340993812,22cyclictest1127605-21cron20:50:003
109234099381,10cyclictest1132962-21/usr/sbin/munin21:05:273
109234099381,10cyclictest1107431-21/usr/sbin/munin19:50:173
1092334993828,7cyclictest1163856-21sh22:35:002
1092334993827,7cyclictest1158314-21grep22:15:252
1092331993826,8cyclictest1127195-21grep20:45:271
1092331993826,8cyclictest1127195-21grep20:45:271
1092327993831,4cyclictest1086836-21kworker/u8:1+events_unbound19:16:380
109234099377,5cyclictest1168094-21open_files22:45:223
109234099376,6cyclictest1195725-21awk00:05:273
109234099373,5cyclictest1156010-21meminfo22:10:193
109234099371,9cyclictest1128859-21tail20:50:293
109234099371,7cyclictest1193456-21fschecks_count00:00:163
109234099371,7cyclictest1129545-21/usr/sbin/munin20:55:233
109234099371,6cyclictest440-21cron22:25:003
109234099371,6cyclictest440-21cron22:25:003
109234099371,11cyclictest1102828-21tail19:35:263
109234099371,10cyclictest1170246-21unixbench_singl22:50:253
109234099370,10cyclictest1200322-21sed00:20:013
1092331993726,8cyclictest1199924-21sendmail00:20:001
1092331993726,6cyclictest0-21swapper/123:20:271
1092327993726,5cyclictest0-21swapper/000:20:260
109234099368,7cyclictest1178529-21cat23:15:253
109234099361,9cyclictest1140641-21/usr/sbin/munin21:25:263
109234099361,9cyclictest1118103-21grep20:20:243
109234099361,7cyclictest1173265-21proc_pri23:00:233
109234099361,7cyclictest1099890-21cron19:30:003
109234099361,10cyclictest1145822-21wc21:40:193
1092340993610,3cyclictest1113987-21/usr/sbin/munin20:10:283
1092327993630,4cyclictest1186019-21kworker/u8:0+events_unbound23:42:340
109234099351,9cyclictest1176646-21/usr/sbin/munin23:10:253
109234099351,9cyclictest1110719-21/usr/sbin/munin20:00:193
109234099351,11cyclictest1202593-21/usr/sbin/munin00:25:223
109234099350,8cyclictest1165594-21idleruntime-cro22:40:013
1092331993527,5cyclictest1179217-21munin-run23:20:011
1092331993524,7cyclictest0-21swapper/120:30:011
109232799359,4cyclictest11718332timerwakeupswit22:55:270
1092327993527,6cyclictest1130703-21kworker/u8:0+events_unbound21:57:090
1092327993525,5cyclictest0-21swapper/022:45:010
109234099347,4cyclictest1113351-21unixbench_singl20:05:273
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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