You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2024-07-21 - 21:09

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 #4

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 50 highest latencies:
System rack9slot4s (updated Sun Jul 21, 2024 12:59:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
183432623577,30sleep00-21swapper/007:20:140
197002579496,41sleep10-21swapper/107:22:301
1999299148140,4cyclictest21875-21/usr/sbin/munin07:30:010
265102980,9sleep11999399cyclictest11:55:311
184232860,5sleep118421-21sort11:35:211
116722790,3sleep00-21swapper/008:25:150
1999299374,16cyclictest14817-21iostat_ios11:25:220
19992993619,6cyclictest3-21ksoftirqd/009:35:360
19992993619,6cyclictest3-21ksoftirqd/007:34:540
1999299352,19cyclictest0-21swapper/008:20:150
1999299352,15cyclictest9243-21df09:45:110
19992993420,4cyclictest3-21ksoftirqd/010:10:480
19992993420,4cyclictest3-21ksoftirqd/008:32:490
19992993418,6cyclictest3-21ksoftirqd/012:32:550
299822331,4sleep030129-21grep10:40:150
1999399334,26cyclictest0-21swapper/111:25:171
1999299335,14cyclictest32285-21needreboot10:45:250
19992993317,5cyclictest3-21ksoftirqd/008:17:030
279682320,6sleep01999299cyclictest12:00:170
251582325,5sleep122-21ksoftirqd/111:53:171
1999399323,4cyclictest81rcu_preempt10:01:351
1999299325,15cyclictest0-21swapper/008:55:330
19992993217,5cyclictest3-21ksoftirqd/011:45:040
19992993217,5cyclictest3-21ksoftirqd/008:12:260
19992993217,5cyclictest3-21ksoftirqd/007:58:030
19992993216,5cyclictest3-21ksoftirqd/012:07:420
19992993216,5cyclictest3-21ksoftirqd/011:56:100
19992993216,5cyclictest3-21ksoftirqd/007:47:560
19992993214,6cyclictest3-21ksoftirqd/007:38:050
188022321,27sleep018807-21ntp_states11:35:320
89372310,7sleep08939-21fschecks_count11:10:150
319162311,5sleep10-21swapper/109:20:111
1999399316,4cyclictest81rcu_preempt10:47:381
1999399316,4cyclictest81rcu_preempt08:36:191
1999399315,5cyclictest81rcu_preempt08:46:131
1999399312,4cyclictest81rcu_preempt10:43:471
1999399312,4cyclictest81rcu_preempt09:19:151
1999399312,15cyclictest12943-21irqstats11:20:211
1999399312,14cyclictest11328-21hddtemp_smartct09:50:161
19993993117,8cyclictest20832-21iostat_ios10:15:191
19992993124,5cyclictest0-21swapper/010:22:500
19992993116,5cyclictest3-21ksoftirqd/010:18:180
1999299311,21cyclictest0-21swapper/008:40:510
42782301,5sleep00-21swapper/010:56:150
315482301,5sleep00-21swapper/009:18:050
1999399306,4cyclictest81rcu_preempt09:44:591
1999399304,4cyclictest81rcu_preempt12:29:021
1999399304,4cyclictest81rcu_preempt11:31:171
1999399304,4cyclictest81rcu_preempt07:45:071
1999399302,15cyclictest27065-21iostat07:40:171
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional