You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2025-12-24 - 13:23

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 #3, slot #6

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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack3slot6s.osadl.org (updated Wed Dec 24, 2025 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
132192115104,6sleep30-21swapper/319:07:593
13160211094,11sleep10-21swapper/119:07:131
13055211098,7sleep00-21swapper/019:05:520
13305210796,6sleep20-21swapper/219:09:072
49342890,0sleep00-21swapper/023:50:120
86542800,1sleep3381ktimersoftd/321:22:333
255032690,0sleep20-21swapper/200:14:122
1340299230,21cyclictest0-21swapper/000:35:100
300012220,0sleep10-21swapper/100:19:401
245532210,1sleep26431-21nscd22:19:592
1340499211,2cyclictest0-21swapper/220:00:132
1340499211,18cyclictest0-21swapper/223:10:132
1340499211,18cyclictest0-21swapper/223:10:122
13402992116,3cyclictest26235-21ssh00:15:100
1340499200,2cyclictest0-21swapper/220:40:142
1340399200,2cyclictest0-21swapper/119:50:131
1340399200,2cyclictest0-21swapper/100:25:121
208582190,0sleep20-21swapper/219:25:272
1340599192,15cyclictest0-21swapper/321:35:043
1340399190,2cyclictest0-21swapper/122:00:121
1340599170,15cyclictest0-21swapper/322:47:043
13402991714,2cyclictest5641-21kworker/u8:122:45:050
13402991714,2cyclictest19916-21kworker/u8:122:52:050
13402991712,3cyclictest27491-21aten2.4_r3power21:45:120
13405991613,2cyclictest1036-21kworker/u8:022:31:053
13405991611,3cyclictest24919-21ssh22:20:113
1340499161,13cyclictest11180-21ssh23:56:202
1340399161,13cyclictest19555-21latency_hist20:44:591
220392150,3sleep30-21swapper/320:50:153
1340599151,2cyclictest29720-21apt-get19:50:133
13405991512,2cyclictest9079-21kworker/u8:123:46:043
13405991510,3cyclictest27202-21munin-run21:45:003
1340599150,13cyclictest0-21swapper/323:05:113
1340499153,6cyclictest0-21swapper/220:30:002
1340499152,7cyclictest20033-21ssh23:30:012
1340499151,3cyclictest25490-21touch19:40:012
13404991511,2cyclictest17683-21apt-get00:05:142
13404991510,3cyclictest13569-21sed22:05:282
13404991510,3cyclictest0-21swapper/223:27:012
1340499150,3cyclictest0-21swapper/222:22:202
1340499150,13cyclictest6675-21snmpd22:46:132
1340499150,13cyclictest0-21swapper/222:01:432
1340499150,11cyclictest0-21swapper/221:40:382
13403991511,2cyclictest0-21swapper/122:40:231
13403991510,3cyclictest31606-21cut23:05:131
1340399150,2cyclictest29479-21diskmemload21:11:591
1340399150,13cyclictest31738-21munin-node1
1340399150,13cyclictest0-21swapper/122:20:271
13402991512,2cyclictest0-21swapper/022:22:520
1340299151,12cyclictest18472-21needreboot20:40:180
1340299150,13cyclictest0-21swapper/023:49:510
95692140,2sleep029479-21diskmemload23:16:430
91382140,1sleep20-21swapper/223:15:512
238622141,3sleep323872-21ssh22:18:403
191552140,2sleep029479-21diskmemload23:28:360
1340599149,3cyclictest0-21swapper/300:25:143
13405991411,2cyclictest6002-21kworker/u8:021:54:043
13405991411,2cyclictest6002-21kworker/u8:021:29:043
13405991411,2cyclictest0-21swapper/322:01:593
13405991411,2cyclictest0-21swapper/300:23:093
13405991410,2cyclictest0-21swapper/323:55:143
1340599140,2cyclictest29479-21diskmemload23:34:193
1340599140,2cyclictest0-21swapper/323:10:153
1340599140,2cyclictest0-21swapper/323:10:143
1340599140,12cyclictest29479-21diskmemload23:50:093
1340599140,12cyclictest0-21swapper/323:41:443
1340599140,12cyclictest0-21swapper/320:30:153
1340499149,3cyclictest30777-21ssh23:41:332
1340499142,6cyclictest6352-21copy00:30:002
1340499142,6cyclictest0-21swapper/219:15:012
13404991411,2cyclictest0-21swapper/221:51:532
1340499140,2cyclictest0-21swapper/222:28:042
1340499140,2cyclictest0-21swapper/200:25:422
1340499140,12cyclictest6675-21snmpd22:36:112
1340499140,12cyclictest29479-21diskmemload23:36:262
1340499140,12cyclictest29479-21diskmemload21:30:382
1340499140,12cyclictest29479-21diskmemload00:36:002
1340499140,12cyclictest0-21swapper/223:00:462
1340499140,12cyclictest0-21swapper/222:50:112
1340499140,12cyclictest0-21swapper/220:05:122
1340399141,2cyclictest9910-21iostat_ios23:55:191
13403991411,2cyclictest0-21swapper/123:41:501
1340399140,2cyclictest29479-21diskmemload22:53:301
1340399140,2cyclictest0-21swapper/123:03:501
1340399140,12cyclictest0-21swapper/123:45:311
1340399140,12cyclictest0-21swapper/121:50:171
1340399140,12cyclictest0-21swapper/121:35:161
1340399140,12cyclictest0-21swapper/121:34:071
1340399140,12cyclictest0-21swapper/100:12:151
1340299149,3cyclictest0-21swapper/022:55:410
13402991411,2cyclictest17721-21kworker/u8:200:25:050
13402991411,2cyclictest0-21swapper/023:59:020
13402991410,2cyclictest0-21swapper/020:10:220
1340299140,2cyclictest0-21swapper/022:17:420
1340299140,12cyclictest28355-21munin-run23:40:000
1340299140,12cyclictest0-21swapper/022:10:160
1340299140,12cyclictest0-21swapper/021:36:360
1340299140,12cyclictest0-21swapper/021:26:370
1340299140,12cyclictest0-21swapper/020:25:190
98032130,2sleep00-21swapper/000:33:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional