You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-01-07 - 16:36

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 highest latencies:
System rack5slot7s.osadl.org (updated Wed Jan 07, 2026 12:45:09)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24012224322190,98sleep00-21swapper07:06:550
244039916513,28cyclictest25545-21munin-node08:55:120
244039916020,116cyclictest20907-21apt10:00:020
244039915844,94cyclictest26403-21/usr/sbin/munin07:16:230
244039915818,23cyclictest18321-21apt-get09:46:080
244039915815,101cyclictest5118-21/usr/sbin/munin08:25:120
244039915719,33cyclictest6807-1kworker/u3:512:01:460
244039915718,110cyclictest5911-21apt-get08:30:160
244039915617,96cyclictest6111-21apt-get11:51:290
244039915613,118cyclictest25702-21sshd10:26:070
244039915536,23cyclictest9783-21sshd08:51:070
244039915516,25cyclictest7405-21munin-run08:40:030
244039915514,25cyclictest17298-21apt-get09:41:450
244039915512,25cyclictest13360-21tr12:30:460
244039915511,120cyclictest17231-21sed09:37:040
244039915412,112cyclictest31638-21dpkg07:50:230
244039915411,26cyclictest30976-21grep07:45:450
244039915314,37cyclictest29780-21munin-run07:40:030
244039915314,115cyclictest13865-21munin-run09:20:020
244039915312,30cyclictest24874-21sshd07:11:060
244039915213,23cyclictest28148-21munin-run10:45:010
24403991519,43cyclictest5629-21wc11:45:410
244039915117,96cyclictest7483-21memory11:55:490
244039915114,114cyclictest3159-21apt-get08:16:170
244039915114,113cyclictest28904-21users10:46:070
244039915113,113cyclictest8193-21awk08:41:100
244039915113,113cyclictest31703-21wc11:05:460
244039915112,25cyclictest30594-21munin-run07:45:010
244039915111,24cyclictest11750-21cat12:20:450
244039915111,115cyclictest16245-21sshd09:31:060
244039915110,116cyclictest30253-21zcat10:55:570
24403991509,117cyclictest22283-21cut10:05:580
244039915017,105cyclictest29042-21apt-get10:50:170
244039915014,110cyclictest9868-21apt-get12:10:160
244039915013,22cyclictest14780-21/usr/sbin/munin09:25:530
244039915012,39cyclictest1709-21grep11:20:480
244039915012,114cyclictest694-21diskstats11:15:290
244039915010,117cyclictest401-21grep11:11:030
24403991498,120cyclictest29082-21kworker/u2:207:55:190
244039914917,23cyclictest27601-21diskstats07:25:340
244039914915,111cyclictest14570-21munin-run12:40:020
244039914912,49cyclictest2586-21/usr/sbin/munin08:10:350
244039914911,24cyclictest12360-21/usr/sbin/munin09:11:100
244039914911,22cyclictest11370-21munin-run12:20:020
244039914830,22cyclictest24246-21apt-get10:20:210
244039914820,26cyclictest19531-21diskstats09:50:410
244039914816,108cyclictest14085-21df09:20:240
244039914815,111cyclictest2867-21users11:26:060
244039914814,22cyclictest31023-21wc11:00:530
244039914814,109cyclictest26633-21apt-get10:35:180
244039914812,21cyclictest289-21snmpd08:48:200
244039914811,25cyclictest109-21systemd-journal11:35:000
244039914810,114cyclictest13059-21latency_hist12:30:050
244039914717,20cyclictest0-21swapper10:00:230
244039914716,23cyclictest4326-21apt-get08:20:200
244039914713,111cyclictest24124-21munin-run10:20:030
244039914710,24cyclictest4225-21sendmail_mailqu11:35:530
244039914710,23cyclictest9284-21ls12:05:470
244039914617,24cyclictest883-21apt-get08:00:180
244039914616,22cyclictest12222-21users09:06:050
244039914612,94cyclictest26253-21zcat10:30:560
244039914612,23cyclictest22729-21df_inode10:10:300
244039914512,24cyclictest5027-21/usr/sbin/munin11:40:520
244039914420,104cyclictest10776-21apt-get09:00:130
244039914412,26cyclictest27372-21sshd07:24:070
244039914412,108cyclictest28281-21/usr/sbin/munin07:30:360
244039914410,109cyclictest1675-21apt-get08:05:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional