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2025-05-21 - 13:01

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #4, 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 
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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.

Total number of samples: 50 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of all highest latencies:
System rack4slot6s.osadl.org (updated Wed May 21, 2025 00:44:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1446122630,2sleep014462-21awk20:10:240
3210222570,3sleep032103-21latency_hist21:20:000
1364821790,2sleep013652-21cron00:20:000
1560721510,2sleep015608-21/usr/sbin/munin22:20:270
645921270,4chrt6460-21run-parts23:50:300
481221260,3chrt4810-21awk21:40:000
1813721260,4chrt18138-21if_eth020:25:160
2676321220,4chrt26764-21munin-plugin-st23:05:000
539021210,3chrt5389-21/usr/sbin/munin21:40:260
125292990,4sleep012530-21sshd22:09:570
323732950,3sleep032421-21processes23:25:290
10062920,2sleep01007-21cat23:30:160
59222890,3sleep05992-21latency_hist23:50:020
31012998955,19cyclictest32456-21df_inode19:15:170
154072890,2sleep015405-21open_inodes00:25:290
167232860,3sleep016788-21/usr/sbin/munin00:30:310
222312810,4sleep022298-21processes20:40:280
210292810,3sleep021099-21switchtime20:35:280
31012997853,15cyclictest28909-21ls21:05:280
31012997852,15cyclictest7124-21seq19:41:250
31012997852,14cyclictest3069-21chrt23:38:010
31012997751,16cyclictest19870-21cat20:30:280
31012997748,16cyclictest26889-21sshd20:59:570
31012997747,19cyclictest13503-21chrt22:12:210
31012997647,16cyclictest29368-21latency_hist23:15:010
31012997552,13cyclictest29916-21awk21:10:210
31012997551,15cyclictest29743-21ntp_states23:15:250
31012997550,14cyclictest8865-21grep19:50:000
31012997550,14cyclictest32564-21runrttasks21:20:250
31012997550,13cyclictest18843-21sendmail-msp00:40:000
31012997549,16cyclictest31166-21df_inode19:10:120
31012997549,15cyclictest15612-21runrttasks20:15:210
31012997547,16cyclictest10399-21ntp_states22:00:250
31012997449,14cyclictest23437-21ntpq20:45:210
31012997447,16cyclictest1534-21ntp_states19:20:200
31012997446,18cyclictest14855-21seq22:17:520
31012997446,16cyclictest9240-21ntp_kernel_pll_19:50:210
3001027420,31sleep030070-21/usr/sbin/munin19:05:190
31012997349,14cyclictest10912-21seq19:55:560
31012997348,16cyclictest27110-21egrep21:00:130
31012997348,15cyclictest6212-21chrt19:39:450
31012997348,15cyclictest19718-21uptime22:35:330
31012997348,14cyclictest8630-21/usr/sbin/munin00:00:130
31012997348,14cyclictest3533-21sort21:35:010
31012997347,15cyclictest18504-21seq22:30:570
31012997346,16cyclictest7329-21/usr/sbin/munin23:55:360
31012997342,19cyclictest23214-21/usr/sbin/munin22:50:420
31012997248,15cyclictest2586-21df19:25:130
31012997247,16cyclictest3473-21/usr/sbin/munin23:40:180
31012997247,14cyclictest24732-21/usr/sbin/munin20:50:210
31012997245,16cyclictest6555-21/usr/sbin/munin21:45:250
31012997244,16cyclictest9090-21ntp_states21:55:250
31012997242,16cyclictest24366-21/usr/sbin/munin22:55:170
31012997145,16cyclictest14078-21cat00:20:210
31012997144,16cyclictest4092-21ntpq19:30:210
31012997048,12cyclictest20704-21ntp_kernel_pll_22:40:250
31012997046,15cyclictest27174-21ntp_states23:05:250
31012997046,14cyclictest269-21runrttasks21:27:410
31012997044,15cyclictest7766-21ntpq21:50:210
31012997044,14cyclictest17259-21/usr/sbin/munin20:20:290
31012997038,20cyclictest11714-21seq20:00:190
31012996943,14cyclictest31056-21ntp_states23:20:220
31012996933,21cyclictest16711-21seq22:25:210
31012996845,13cyclictest11252-21df00:10:130
31012996843,13cyclictest10404-21wc00:05:290
31012996833,22cyclictest12860-21runrttasks20:05:150
31012996633,19cyclictest22018-21ntp_states22:45:270
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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