You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-09-22 - 23:14

OSADL QA Farm on Real-time of Mainline Linux

About - Hardware - CPUs - Benchmarks - Graphics - Benchmarks - Kernels - Boards/Distros - Latency monitoring - Latency plots - System data - Profiles - Compare - Awards

Default latency plot of shadow in rack #7, 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 
Special  All - All RT - Optimization - Ethernet - Thumbnails - Next
  
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 rack7slot7s.osadl.org (updated Tue Sep 22, 2026 12:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1263329452,38sleep00-21swapper/007:09:160
1267629369,19sleep10-21swapper/107:09:491
1255728471,9sleep30-21swapper/307:08:183
1056128471,9sleep20-21swapper/207:05:082
1277999261,2cyclictest141rcu_preempt12:15:282
1277999261,2cyclictest141rcu_preempt12:15:272
1277299240,2cyclictest0-21swapper/011:01:060
1277299230,20cyclictest0-21swapper/010:36:030
12779992220,2cyclictest32-21ksoftirqd/209:10:142
1277999220,22cyclictest0-21swapper/211:27:502
12776992219,2cyclictest0-21swapper/109:47:171
1277699220,1cyclictest0-21swapper/111:20:261
1278299200,20cyclictest0-21swapper/312:16:463
1278299200,20cyclictest0-21swapper/312:16:463
1278299200,1cyclictest0-21swapper/311:44:453
1278299200,1cyclictest0-21swapper/309:49:083
12776992018,1cyclictest0-21swapper/109:35:211
12776992017,1cyclictest5733-21diskmemload10:56:421
1277699200,18cyclictest0-21swapper/111:30:141
1277299205,7cyclictest17526-21munin-run07:20:000
12779991918,1cyclictest0-21swapper/208:15:132
1277699193,15cyclictest5733-21diskmemload11:40:451
1277699190,1cyclictest0-21swapper/112:22:191
12772991918,1cyclictest0-21swapper/010:16:220
1277299190,1cyclictest0-21swapper/012:33:240
137402180,1chrt0-21swapper/009:53:240
1278299180,1cyclictest0-21swapper/312:28:303
1278299180,0cyclictest0-21swapper/311:17:503
1277999180,18cyclictest0-21swapper/209:37:462
12776991813,1cyclictest25-21ksoftirqd/109:34:461
1277299180,17cyclictest0-21swapper/012:02:290
1278299170,1cyclictest0-21swapper/309:52:063
1277999176,11cyclictest30973-21kworker/2:010:40:132
12779991715,1cyclictest0-21swapper/209:35:002
1277699176,3cyclictest537-21snmpd10:04:161
1277699173,11cyclictest5733-21diskmemload10:40:111
1277699170,17cyclictest0-21swapper/109:52:571
1277299179,7cyclictest2354-21sh11:23:530
12782991615,1cyclictest0-21swapper/310:58:203
12782991614,0cyclictest0-21swapper/309:29:323
1278299160,16cyclictest0-21swapper/311:20:523
12779991614,1cyclictest32-21ksoftirqd/209:44:562
12779991611,4cyclictest22542-21apt-get07:30:132
1277999160,16cyclictest0-21swapper/210:57:492
12776991610,1cyclictest25-21ksoftirqd/110:34:191
12782991510,3cyclictest26458-21ls07:35:263
1277999150,1cyclictest0-21swapper/211:38:282
1277699150,0cyclictest141rcu_preempt10:17:001
1277299153,6cyclictest24044-21munin-run10:00:010
1277299153,10cyclictest0-21swapper/012:20:110
12772991512,2cyclictest0-21swapper/011:11:560
1277299150,14cyclictest0-21swapper/011:31:490
1277299150,12cyclictest0-21swapper/012:10:060
12782991411,2cyclictest5733-21diskmemload11:02:393
12782991410,3cyclictest992-21cat09:00:003
12782991410,3cyclictest17494-21cron07:20:003
12782991410,2cyclictest19659-21grep10:35:213
1278299140,1cyclictest0-21swapper/312:22:193
1278299140,14cyclictest0-21swapper/310:03:543
1278299140,0cyclictest0-21swapper/312:09:513
1277999147,6cyclictest8804-21apt-get10:10:162
12779991412,1cyclictest32-21ksoftirqd/210:06:322
12779991412,1cyclictest32-21ksoftirqd/209:29:272
12779991411,2cyclictest17023-21sed12:30:202
12779991410,3cyclictest29604-21grep08:50:182
12779991410,2cyclictest26123-21grep10:20:172
1277699148,5cyclictest20255-21ssh11:53:591
1277699147,6cyclictest25-21ksoftirqd/110:39:201
12776991413,1cyclictest1948-21kworker/u8:211:29:231
1277699141,2cyclictest141rcu_preempt10:48:531
12776991412,0cyclictest0-21swapper/110:24:561
12776991411,2cyclictest27023-21dump-pmu-power07:40:001
12776991410,3cyclictest2325-21grep07:55:151
12776991410,3cyclictest16838-21wc07:15:271
12776991410,3cyclictest10582-21ssh11:47:551
12776991410,3cyclictest10376-21head08:10:181
1277699140,13cyclictest0-21swapper/110:25:011
1277699140,12cyclictest0-21swapper/110:13:501
1277299149,3cyclictest4006-21wc10:45:250
1277299146,7cyclictest23224-21munin-run09:40:000
12772991410,2cyclictest15049-21expr09:15:160
1278299138,3cyclictest23860-21sh08:40:003
1278299134,4cyclictest0-21swapper/309:40:003
12782991312,1cyclictest0-21swapper/310:20:013
12782991310,2cyclictest16603-21sed12:10:273
12782991310,2cyclictest16474-21cut09:55:163
12782991310,2cyclictest15528-21cut09:15:183
1278299130,3cyclictest23269-21cpuspeed_turbos09:20:163
1278299130,2cyclictest0-21swapper/310:31:503
1278299130,1cyclictest0-21swapper/310:47:513
12779991311,1cyclictest0-21swapper/211:40:152
12779991310,2cyclictest25669-21sed07:35:172
12779991310,2cyclictest15625-21grep07:15:162
12779991310,2cyclictest14731-21kworker/u8:210:25:492
1277999130,1cyclictest0-21swapper/211:14:062
1277999130,12cyclictest12178-21wc10:50:262
1277699139,3cyclictest26269-21perf08:45:001
1277699139,3cyclictest0-21swapper/111:15:001
1277699139,2cyclictest28559-21wc07:40:191
12776991311,1cyclictest0-21swapper/107:45:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional