You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-10-27 - 12:22

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 #5, slot #7

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.

Total number of samples: 50.5 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 792 highest latencies:
System rack5slot7s.osadl.org (updated Mon Oct 27, 2025 00:45:09)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29257224312175,99sleep00-21swapper19:09:020
294139916518,27cyclictest10643-21df23:45:260
294139916235,21cyclictest112-21systemd-journal20:35:010
294139916118,24cyclictest28765-21apt-get22:21:260
294139916111,123cyclictest3784-21apt-get23:06:310
29413991589,126cyclictest18658-21sed00:31:050
294139915716,100cyclictest1737-21df19:35:260
294139915714,119cyclictest15688-21touch21:00:180
294139915712,121cyclictest29507-21/usr/sbin/munin19:10:410
294139915616,114cyclictest31542-21apt-get19:20:270
294139915614,120cyclictest28765-21apt-get22:20:020
294139915611,28cyclictest6499-21grep20:05:060
294139915517,23cyclictest9023-21df23:35:260
294139915416,23cyclictest15428-21apt-get00:15:260
294139915415,99cyclictest16517-21apt-get21:06:260
294139915412,43cyclictest17701-21cut00:26:000
294139915339,96cyclictest5591-21sshd23:14:250
294139915317,21cyclictest19342-21df21:20:260
294139915316,27cyclictest5814-21df_inode23:15:330
294139915314,23cyclictest572-21munin-run22:45:010
294139915312,118cyclictest1042-21ps22:45:540
294139915238,22cyclictest20767-21sort21:30:040
294139915217,23cyclictest11432-21df20:35:260
294139915215,114cyclictest8028-21munin-run23:30:010
294139915214,115cyclictest14881-21df_inode20:55:390
294139915211,38cyclictest26714-21grep22:05:460
294139915211,117cyclictest25542-21apt22:00:010
294139915138,92cyclictest27408-21/usr/sbin/munin22:10:390
294139915117,111cyclictest13823-21apt20:50:130
294139915115,22cyclictest11440-21df23:50:250
294139915110,119cyclictest21263-21find21:30:560
294139915110,117cyclictest1464-21/usr/sbin/munin22:50:440
294139915110,116cyclictest2969-21munin-run23:00:030
294139915017,108cyclictest30822-21df22:30:290
294139915016,110cyclictest23493-21memory21:45:470
294139915014,25cyclictest8822-21munin-run20:20:030
294139915012,24cyclictest31356-21munin-run19:20:040
294139915011,26cyclictest3599-21tr19:45:520
294139915011,25cyclictest19032-21head21:16:030
294139914932,20cyclictest32509-21apt-get19:25:260
294139914920,26cyclictest12955-21apt-get20:45:190
294139914918,25cyclictest22697-21memory21:40:430
294139914914,28cyclictest18143-21wc21:11:090
294139914914,110cyclictest7603-21ntpq20:11:040
294139914912,22cyclictest12838-21apt00:00:020
294139914912,111cyclictest3197-21sshd23:00:300
294139914911,113cyclictest19507-21sh00:40:010
29413991489,37cyclictest30520-21timerwakeupswit22:26:100
294139914819,107cyclictest5601-21munin-run20:00:030
294139914815,25cyclictest13073-21diskstats00:00:300
294139914814,111cyclictest17146-21wc00:25:030
294139914811,95cyclictest7066-21sort20:06:060
294139914810,27cyclictest24470-21find21:50:560
294139914810,23cyclictest8939-21/usr/sbin/munin20:20:490
294139914729,19cyclictest0-21swapper23:20:540
294139914724,22cyclictest0-21swapper21:35:480
294139914716,22cyclictest8822-21apt23:35:010
294139914713,111cyclictest14925-21wc00:10:560
294139914711,111cyclictest10373-21sed20:26:060
294139914620,26cyclictest844-21apt-get19:30:250
294139914619,25cyclictest31515-21apt-get22:35:180
294139914511,113cyclictest12586-21find20:41:100
294139914417,26cyclictest13875-21diskstats00:05:340
294139914417,25cyclictest2681-21irqstats19:40:380
294139914417,104cyclictest4418-21ntp_states19:50:550
294139914316,26cyclictest9851-21df23:40:280
294139914312,104cyclictest25668-21apt-get22:00:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional