You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-11-19 - 11:30

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 100 highest latencies:
System rack5slot7s.osadl.org (updated Wed Nov 19, 2025 00:45:08)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12521224332194,96sleep00-21swapper19:09:180
126479916315,40cyclictest29163-21/usr/sbin/munin20:50:320
126479916115,124cyclictest21179-21apt-get23:20:350
126479915712,117cyclictest16630-21ntp_states19:30:570
126479915633,21cyclictest31863-21snmpd21:01:030
126479915631,16cyclictest0-21swapper20:30:480
126479915616,39cyclictest21184-21munin-run23:20:030
126479915616,116cyclictest17216-21diskstats19:35:350
126479915611,120cyclictest25158-21/usr/sbin/munin20:26:080
126479915517,24cyclictest27840-21apt00:00:010
126479915515,39cyclictest10412-21head22:11:050
126479915514,118cyclictest31863-21snmpd19:55:470
126479915431,23cyclictest15513-1kworker/u3:319:25:330
126479915416,23cyclictest18626-21munin-plugin-st19:45:020
126479915415,23cyclictest2051-21apt00:40:020
126479915414,24cyclictest17365-21diskstats22:55:340
12647991538,121cyclictest14426-21grep19:16:170
126479915329,102cyclictest0-21swapper00:25:580
126479915316,24cyclictest3685-21ntp_states21:30:540
126479915316,113cyclictest23637-21df_inode20:15:340
126479915315,113cyclictest14150-21diskstats22:35:330
126479915312,24cyclictest31863-21snmpd22:51:020
126479915217,93cyclictest30254-21apt-get00:16:060
126479915217,22cyclictest22597-21users20:06:090
126479915212,27cyclictest30630-21/usr/sbin/munin20:56:590
126479915210,117cyclictest7194-21head21:51:060
126479915116,23cyclictest32504-21apt21:10:020
126479915115,37cyclictest22430-21df23:25:350
126479915114,115cyclictest12558-21sshd22:25:360
126479915113,24cyclictest663-21sshd00:30:360
126479915113,115cyclictest10486-21apt-get22:16:040
126479915112,39cyclictest8640-21cat22:01:010
126479915112,28cyclictest27365-21head20:36:040
12647991509,116cyclictest20060-21grep19:51:030
126479915025,106cyclictest9096-21df22:05:300
126479915016,109cyclictest28470-21df20:45:280
126479915015,23cyclictest29669-21diskstats00:10:360
126479915013,24cyclictest1658-21munin-run21:20:030
126479915012,114cyclictest25444-21munin-plugin-st23:45:010
12647991499,116cyclictest13467-21wc22:30:450
126479914921,26cyclictest28999-21memory00:05:450
126479914921,105cyclictest23820-21apt23:35:010
126479914918,23cyclictest13440-21munin-run19:15:020
126479914914,25cyclictest4274-21df_inode21:35:310
126479914911,114cyclictest19272-21cat19:46:040
126479914910,29cyclictest14798-21ls19:20:250
12647991488,117cyclictest19423-21sort23:06:060
126479914819,27cyclictest19669-21apt-get23:10:300
126479914818,22cyclictest0-21swapper20:21:030
126479914816,25cyclictest23919-21/usr/sbin/munin23:36:020
126479914815,25cyclictest5099-21diskstats21:40:360
126479914812,113cyclictest31420-21apt-get00:20:190
12647991479,25cyclictest6414-21sed21:46:050
126479914714,24cyclictest25721-21irqstats23:45:390
126479914713,97cyclictest870-21grep21:15:030
126479914711,110cyclictest21207-21ls20:00:270
126479914710,112cyclictest15154-21ntpq22:40:510
126479914639,85cyclictest28135-21/usr/sbin/munin00:00:380
126479914615,25cyclictest22841-21df_inode20:10:330
126479914611,113cyclictest28189-21sed20:41:100
126479914517,26cyclictest15657-21/usr/sbin/munin22:46:120
126479914517,25cyclictest11820-21irqstats22:20:480
126479914515,26cyclictest7474-21df21:55:250
126479914512,26cyclictest2538-21wc21:25:050
126479914510,38cyclictest18512-21mailstats23:00:590
126479914418,102cyclictest26446-21df_inode23:50:300
126479914313,24cyclictest2574-21apt-get21:25:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional