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2026-06-18 - 01:43

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #c, slot #7

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 100 highest latencies:
System rackcslot7s.osadl.org (updated Wed Jun 17, 2026 12:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
109378321930,7sleep10-21swapper/107:05:141
110278621340,5sleep00-21swapper/007:30:000
109486227539,14sleep00-21swapper/007:05:590
109370527239,26sleep30-21swapper/307:05:143
109504127039,25sleep20-21swapper/207:08:172
11384582490,2sleep30-21swapper/309:10:123
11541482440,3sleep00-21swapper/009:55:120
11329692430,4sleep013-21ksoftirqd/008:55:090
1095316993026,3cyclictest34-21ksoftirqd/207:25:012
1095316993011,5cyclictest34-21ksoftirqd/211:15:012
1095316992925,3cyclictest34-21ksoftirqd/207:20:012
11123942260,4chrt3056-21PK-Backend07:55:173
1095316992615,7cyclictest1155250-21munin-plugin-st10:00:002
109532099258,15cyclictest1141631-21cat09:20:123
109531699259,14cyclictest1-21systemd07:34:132
11984222240,2sleep00-21swapper/012:00:230
1095316992413,7cyclictest1095-21runrttasks12:10:092
1095314992416,5cyclictest1146591-21sh09:35:011
1095309992419,4cyclictest1160932-21cstates10:15:120
109532099236,15cyclictest141rcu_preempt08:05:003
1095320992315,6cyclictest436-20systemd-journal12:40:003
109531699236,5cyclictest34-21ksoftirqd/211:18:352
1095316992319,3cyclictest34-21ksoftirqd/210:48:342
1095316992315,6cyclictest1186763-21cron11:30:002
1095309992321,1cyclictest0-21swapper/010:30:270
139099220,4rtkit-daemon1389-21rtkit-daemon12:14:350
109532099227,13cyclictest1109099-21cat07:45:213
1095320992212,3cyclictest42-21ksoftirqd/310:45:183
109532099221,1cyclictest141rcu_preempt12:05:003
109532099220,20cyclictest3056-21PK-Backend10:34:043
109531699228,3cyclictest141rcu_preempt09:45:152
109531699227,5cyclictest34-21ksoftirqd/210:10:102
109531699223,3cyclictest141rcu_preempt08:04:032
1095316992219,2cyclictest331rcuc/208:18:152
1095316992218,3cyclictest1123662-21chrt08:28:372
1095316992218,3cyclictest1123662-21chrt08:28:362
1095309992220,1cyclictest3056-21PK-Backend07:39:250
1095309992220,1cyclictest0-21swapper/012:09:080
1095309992220,1cyclictest0-21swapper/008:29:270
1095309992220,1cyclictest0-21swapper/008:29:260
1095309992220,1cyclictest0-21swapper/008:00:280
1095309992220,1cyclictest0-21swapper/007:12:210
109530999220,20cyclictest1181596-21munin-run11:15:020
139099210,3rtkit-daemon1389-21rtkit-daemon11:27:470
109532099218,7cyclictest42-21ksoftirqd/307:20:173
109532099214,15cyclictest1140270-21expr09:15:113
1095320992118,2cyclictest3056-21PK-Backend08:21:153
1095320992118,2cyclictest3056-21PK-Backend08:11:553
1095320992118,2cyclictest1194435-21chrt11:50:153
1095320992116,4cyclictest1177309-21grep11:00:193
1095320992113,6cyclictest1195868-21expr11:55:123
1095320992112,7cyclictest1207861-21apt12:30:093
109532099210,20cyclictest3056-21PK-Backend07:32:283
109532099210,19cyclictest3056-21PK-Backend07:54:183
109531699214,5cyclictest34-21ksoftirqd/210:15:192
109531699213,17cyclictest1095-21runrttasks10:44:402
1095316992119,1cyclictest0-21swapper/212:30:432
1095316992119,1cyclictest0-21swapper/212:15:152
1095316992119,1cyclictest0-21swapper/212:04:542
1095316992119,1cyclictest0-21swapper/211:59:192
1095316992119,1cyclictest0-21swapper/211:05:392
1095316992119,1cyclictest0-21swapper/210:33:282
1095316992119,1cyclictest0-21swapper/210:21:262
1095316992119,1cyclictest0-21swapper/210:01:512
1095316992119,1cyclictest0-21swapper/209:21:222
1095316992119,1cyclictest0-21swapper/209:14:062
1095316992119,1cyclictest0-21swapper/208:41:272
1095316992119,1cyclictest0-21swapper/208:33:312
1095316992119,1cyclictest0-21swapper/208:21:542
1095316992119,1cyclictest0-21swapper/208:08:292
1095316992119,1cyclictest0-21swapper/207:57:062
1095316992119,1cyclictest0-21swapper/207:40:182
1095316992113,6cyclictest1132646-21sshd08:54:172
1095316992113,4cyclictest34-21ksoftirqd/210:30:002
1095316992113,4cyclictest34-21ksoftirqd/210:30:002
109531699211,11cyclictest34-21ksoftirqd/207:10:172
109531699210,20cyclictest0-21swapper/211:54:342
109531699210,20cyclictest0-21swapper/209:40:352
109531699210,20cyclictest0-21swapper/209:35:082
109531699210,20cyclictest0-21swapper/208:11:202
109531699210,19cyclictest3056-21PK-Backend07:25:092
1095314992113,6cyclictest1160428-21cron10:15:001
1095314992112,7cyclictest883-21dbus-daemon08:20:001
1095314992112,7cyclictest1207585-21cron12:30:001
109531499210,20cyclictest3056-21PK-Backend10:44:301
109531499210,19cyclictest3056-21PK-Backend09:38:071
109531499210,19cyclictest3056-21PK-Backend09:21:571
109531499210,19cyclictest3056-21PK-Backend08:59:121
1095309992119,1cyclictest0-21swapper/011:35:090
1095309992119,1cyclictest0-21swapper/010:58:520
1095309992119,1cyclictest0-21swapper/009:51:260
1095309992119,1cyclictest0-21swapper/007:30:330
1095309992114,6cyclictest1111385-21cron07:55:000
1095309992114,5cyclictest1118582-21cron08:15:000
109530999210,20cyclictest0-21swapper/012:18:010
109530999210,20cyclictest0-21swapper/011:46:370
109530999210,20cyclictest0-21swapper/007:59:250
139099200,3rtkit-daemon1389-21rtkit-daemon11:24:540
139099200,3rtkit-daemon1389-21rtkit-daemon11:19:470
11038352200,2sleep11102913-21/usr/sbin/munin07:30:221
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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