You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2024-07-13 - 20:45

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 #9, slot #2

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
  

x86 Intel Atom E3950 @1600 MHz, Linux 5.6.19-rt12 (Profile)

Latency plot of shadow in rack #9, slot #2
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 -q
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 50 highest latencies:
System rack9slot2s (updated Thu Oct 29, 2020 00:45:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9170983730,365rtkit-daemon0-21swapper/219:07:452
143272167157,8sleep70-21swapper/719:08:167
118332950,0sleep656-21ksoftirqd/621:36:306
118332950,0sleep656-21ksoftirqd/621:36:306
14717997417,46cyclictest0-21swapper/000:10:260
1475299689,33cyclictest0-21swapper/722:00:167
1472399689,29cyclictest0-21swapper/121:20:171
1472399689,29cyclictest0-21swapper/121:20:171
88642560,1sleep442-21ksoftirqd/421:35:004
14733995615,25cyclictest0-21swapper/300:15:473
1475299556,11cyclictest22760-21gltestperf20:20:077
1472399556,23cyclictest15610-21gltestperf19:10:071
14723995251,1cyclictest6667-21needreboot19:50:141
1472399520,36cyclictest0-21swapper/121:12:141
14752995049,0cyclictest13092-21grep21:00:087
14723995048,1cyclictest14806-21gltestperf20:05:051
14723994826,11cyclictest0-21swapper/121:36:441
14723994826,11cyclictest0-21swapper/121:36:441
14717994745,1cyclictest31067-21grep21:55:140
14752994610,18cyclictest0-21swapper/721:41:157
14743994644,1cyclictest8630-21taskset23:10:135
14747994543,1cyclictest19017-21fschecks_time19:15:056
14728994511,20cyclictest0-21swapper/223:41:482
14717994545,0cyclictest32576-21grep00:09:590
14728994414,19cyclictest0-21swapper/219:40:402
14723994442,1cyclictest14981-21gltestperf22:45:061
14752994343,0cyclictest0-21swapper/721:24:357
14752994343,0cyclictest0-21swapper/721:24:357
14752994340,2cyclictest0-21swapper/721:50:447
14743994341,1cyclictest24378-21gltestperf21:50:055
14737994341,1cyclictest32640-21grep21:25:004
14737994341,1cyclictest32640-21grep21:25:004
14733994341,1cyclictest3032-21grep19:45:023
14733994340,2cyclictest1694-21pmcd22:33:143
1475299420,1cyclictest0-21swapper/720:03:347
14747994241,1cyclictest1115-21ksmtuned00:25:006
14743994239,3cyclictest5392-21needreboot21:30:085
14733994241,0cyclictest28357-21grep20:30:043
14733994240,1cyclictest25439-21grep20:25:053
14723994240,1cyclictest30394-21gltestperf23:00:061
14723994240,1cyclictest23404-21fschecks_time21:15:051
14717994240,1cyclictest5322-21grep21:30:080
14737994110,17cyclictest0-21swapper/420:40:484
14723994141,0cyclictest29394-21grep21:55:041
14723994139,1cyclictest0-21swapper/120:40:071
14717994139,1cyclictest22750-21gltestperf23:25:050
14743994032,7cyclictest13761-21cat21:40:005
14743994032,7cyclictest13761-21cat21:40:005
14717994038,1cyclictest13084-21fschecks_time23:50:050
14752993938,0cyclictest0-21swapper/720:28:357
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional