You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2024-11-22 - 05:11

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 Fri Nov 22, 2024 00:59:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
61489912381207,21cyclictest0-21swapper/019:25:130
61499910871058,25cyclictest6399-21wget19:25:111
43732565517,32sleep10-21swapper/119:20:031
43722563518,30sleep00-21swapper/019:20:010
249092990,9sleep0614899cyclictest21:37:000
94742480,3sleep041ktimersoftd/019:30:200
6149994627,13cyclictest22464-21hddtemp_smartct20:05:171
6149994626,14cyclictest3020-21runrttasks23:21:271
6149994614,14cyclictest6793-21cstates20:50:131
614999448,30cyclictest0-21swapper/121:55:151
6149994425,13cyclictest3020-21runrttasks00:06:121
6149994421,18cyclictest3020-21runrttasks20:14:151
6149994421,17cyclictest23737-21iostat_ios23:00:181
6149994420,20cyclictest11499-21users23:55:301
6149994420,17cyclictest24083-21iostat_ios21:35:171
6149994414,17cyclictest8959-21irqstats23:50:171
6149994330,7cyclictest16924-21iostat_ios19:50:201
6149994328,8cyclictest12451-21iostat_ios22:30:241
6149994325,12cyclictest3020-21runrttasks00:35:551
6149994323,15cyclictest22132-21irqstats00:25:221
6149994321,18cyclictest3020-21runrttasks20:41:281
6149994319,19cyclictest5582-21users22:10:311
6149994314,17cyclictest29067-21diskstats23:15:151
6149994314,17cyclictest28003-21ntp_states00:40:251
6149994313,25cyclictest16794-21ntp_states21:15:251
6149994227,8cyclictest10661-21memory22:25:201
6149994224,12cyclictest3020-21runrttasks20:01:531
6149994224,12cyclictest3020-21runrttasks19:40:181
6149994224,12cyclictest3020-21runrttasks19:33:501
6149994224,12cyclictest3020-21runrttasks00:33:431
6149994224,12cyclictest1266-21ntpq22:00:231
6149994223,14cyclictest3020-21runrttasks00:13:271
6149994223,14cyclictest29957-21ntpq21:50:271
6149994223,13cyclictest14326-21irqstats22:35:211
6149994223,12cyclictest3020-21runrttasks00:20:061
6149994218,20cyclictest14456-21/usr/sbin/munin19:45:261
6149994215,16cyclictest18451-21iostat21:20:191
6149994125,9cyclictest14370-21df21:10:141
6149994125,11cyclictest20202-21ntpq22:50:311
6149994124,12cyclictest3020-21runrttasks23:36:351
6149994124,12cyclictest3020-21runrttasks22:40:471
6149994124,12cyclictest3020-21runrttasks19:57:571
6149994124,12cyclictest18100-21irqstats22:45:241
6149994124,11cyclictest32548-21/usr/sbin/munin23:25:311
6149994123,14cyclictest32545-21unixbench_multi20:30:301
6149994123,13cyclictest3020-21runrttasks22:23:391
6149994123,13cyclictest3020-21runrttasks21:03:341
6149994123,12cyclictest7018-21ntpq22:15:231
6149994123,12cyclictest3020-21runrttasks21:29:461
6149994123,12cyclictest29694-21irqstats00:45:201
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional