You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-11-18 - 07:19

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 Tue Nov 18, 2025 00:45:09)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26311224362197,97sleep00-21swapper19:09:270
264199916516,108cyclictest8171-21apt-get20:31:570
264199916218,23cyclictest13684-21diskstats21:05:330
264199916216,117cyclictest13106-21apt-get00:22:020
264199916120,28cyclictest8633-21memory23:50:490
264199916026,111cyclictest0-21swapper23:41:000
264199916017,119cyclictest22307-21apt-get22:01:040
264199915838,22cyclictest9859-21sshd23:56:320
264199915810,121cyclictest13507-21sort21:05:030
264199915728,107cyclictest12723-21cat21:00:050
264199915617,113cyclictest10121-21diskstats00:00:320
264199915616,25cyclictest2568-21munin-run20:00:030
264199915610,121cyclictest11499-21latency_hist00:10:010
264199915514,37cyclictest8436-21apt-get20:36:400
264199915414,24cyclictest13111-21munin-run00:20:020
264199915315,110cyclictest7407-21munin-run20:30:010
264199915314,115cyclictest6631-21munin-run23:40:020
264199915312,117cyclictest2999-21grep23:15:580
264199915311,120cyclictest31863-21snmpd19:35:390
264199915310,23cyclictest6585-21sshd20:24:180
264199915274,53cyclictest3847-21ps20:05:560
264199915233,21cyclictest19498-21ntp_kernel_err21:40:480
264199915220,104cyclictest31718-21apt-get22:55:200
264199915213,23cyclictest28271-21grep19:16:190
264199915213,118cyclictest8289-21munin-run23:50:020
26419991519,117cyclictest1129-21grep23:05:490
264199915144,85cyclictest31799-21df19:40:300
264199915128,23cyclictest0-21swapper22:11:050
264199915122,20cyclictest0-21swapper19:20:250
264199915117,26cyclictest28509-21apt-get22:35:290
264199915116,113cyclictest3650-21diskstats23:20:330
264199915114,95cyclictest1573-21apt-get23:11:580
264199915114,23cyclictest27229-21munin-node19:15:080
264199915114,113cyclictest27556-21munin-node22:30:130
264199915113,114cyclictest26680-21/usr/sbin/munin22:25:490
264199915016,36cyclictest29390-21diskstats19:25:340
264199915012,114cyclictest5326-21missed_timers20:15:470
264199915012,112cyclictest21778-21interrupts21:55:390
264199914927,101cyclictest0-21swapper22:46:070
264199914917,23cyclictest25764-21munin-run22:20:040
264199914917,111cyclictest0-21swapper23:27:330
264199914912,36cyclictest18492-21df21:35:290
264199914911,24cyclictest1528-21munin-run19:55:050
264199914910,26cyclictest15534-21wc21:15:550
264199914818,104cyclictest32546-21apt-get23:00:180
264199914814,21cyclictest10773-21grep20:45:570
264199914810,23cyclictest21507-21apt21:55:010
264199914716,102cyclictest17593-21apt-get21:30:220
264199914715,109cyclictest31863-21snmpd19:46:540
264199914714,97cyclictest4690-21awk20:10:570
264199914711,38cyclictest23747-21awk22:05:560
264199914631,19cyclictest0-21swapper19:32:330
264199914630,21cyclictest17389-21wc21:26:070
264199914617,45cyclictest2861-21irqstats20:00:490
264199914616,19cyclictest0-21swapper21:21:000
264199914614,37cyclictest5130-21/usr/sbin/munin23:31:080
264199914611,109cyclictest30917-21/usr/sbin/munin22:50:360
264199914610,112cyclictest16290-21awk00:36:000
264199914518,24cyclictest29331-21apt-get22:40:200
264199914516,105cyclictest15054-21apt-get00:30:170
264199914515,106cyclictest11602-21apt-get00:10:200
264199914514,107cyclictest20009-21/usr/sbin/munin21:45:340
264199914513,36cyclictest25881-21/usr/sbin/munin22:20:340
264199914512,20cyclictest10304-21cat20:45:050
264199914419,25cyclictest11264-21diskstats20:50:330
264199914311,21cyclictest15067-21munin-run21:15:010
264199914223,18cyclictest14261-21apt-get00:25:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional