You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-04-14 - 11:37

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 #4

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
  Intel
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: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: ondemand
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack5slot4s.osadl.org (updated Tue Apr 14, 2026 00:44:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
226245521980,2sleep3481ktimers/321:51:223
232025021940,5sleep30-21swapper/322:50:013
2098967996340,9cyclictest280-21systemd-journal20:08:591
2098969995446,5cyclictest2399820-21cat00:10:012
22798762530,1sleep02279879-21cut22:06:320
2098963995039,8cyclictest2221271-21kworker/u8:0+flush-8:021:31:300
2098967994741,4cyclictest2298435-21kworker/u8:3+flush-8:023:11:301
2098967994740,5cyclictest2295382-21latency_hist22:25:011
2098967994537,5cyclictest2419741-21latency_hist00:30:011
2098967994535,8cyclictest2289588-21ntpq22:16:271
2098967994435,6cyclictest280-21systemd-journal22:39:581
2098963994435,6cyclictest2130257-21kworker/u8:2+flush-8:019:56:190
21433222430,2sleep3481ktimers/319:51:233
2098967994335,6cyclictest2241125-21/usr/sbin/munin21:31:261
2098963994337,4cyclictest2130257-21kworker/u8:2+flush-8:020:06:190
20942152424,10sleep10-21swapper/119:05:511
22359312410,2sleep3481ktimers/321:25:013
2098963994135,4cyclictest2279091-21kworker/u8:1+events_unbound00:16:300
2098963994133,6cyclictest2279091-21kworker/u8:1+flush-8:023:26:220
2098963994133,6cyclictest2269799-21ntpq21:56:260
2098967994032,6cyclictest280-21systemd-journal19:40:591
2098967994031,6cyclictest2414814-21awk00:25:001
2098967994030,7cyclictest280-21systemd-journal19:39:161
2098963994034,4cyclictest1257490-21kworker/u8:1+flush-8:021:06:190
2098963994030,7cyclictest2196069-21kworker/u8:2+flush-8:021:36:290
2098963994029,7cyclictest280-21systemd-journal22:55:000
2098967993933,4cyclictest2275617-21awk22:05:001
2098963993933,4cyclictest1267827-21kworker/u8:0+flush-8:019:46:190
2098963993726,7cyclictest2196069-21kworker/u8:2+flush-8:021:46:150
2098963993725,8cyclictest2185934-21apt-get20:35:000
2098967993630,4cyclictest280-21systemd-journal21:45:001
2098967993630,4cyclictest2256207-21apt-get21:46:131
2098967993628,6cyclictest2279091-21kworker/u8:1+flush-8:022:41:291
2098967993628,6cyclictest2106118-21apt-get19:16:141
2098967993628,5cyclictest280-21systemd-journal00:31:591
2098963993625,9cyclictest2130982-21systemd-hiberna19:39:300
2098969993424,6cyclictest2275624-21cat22:05:002
2098967993429,3cyclictest2115228-21timerwakeupswit19:21:341
2098963993429,4cyclictest2130257-21kworker/u8:2+flush-8:019:41:300
2098963993425,6cyclictest280-21systemd-journal20:25:000
2098967993328,3cyclictest1267827-21kworker/u8:0+flush-8:019:51:341
2098967993327,4cyclictest2250537-21journal-offline21:38:231
2098963993326,5cyclictest2369739-21cron23:39:590
2098963993324,7cyclictest2334073-21ntpq23:01:260
2098969993225,5cyclictest2136292-21base6419:45:012
2098967993226,4cyclictest2210840-21cron21:00:001
2098967993225,5cyclictest2216067-21kworker/u8:3+flush-8:021:26:311
2098967993225,5cyclictest2136679-21apt-get19:46:141
2098963993227,3cyclictest2415177-21aten2_r5power_c00:26:140
2098963993223,6cyclictest2349718-21latency_hist23:20:010
22583692310,2sleep3481ktimers/321:46:243
2098969993126,4cyclictest2110722-21sh19:20:002
2098967993127,2cyclictest2175716-21unixbench_multi20:21:351
2098967993126,3cyclictest2364474-21unixbench_singl23:31:341
2098967993125,4cyclictest2125553-21cron19:35:001
2098963993127,3cyclictest2221271-21kworker/u8:0+flush-8:021:41:180
2098963993124,4cyclictest2279091-21kworker/u8:1+events_unbound23:31:330
2098963993121,8cyclictest280-21systemd-journal20:50:000
2098967993024,4cyclictest2398849-21needreboot00:06:331
2098967993024,4cyclictest2330319-21apt-get23:01:131
2098967993024,4cyclictest2185934-21apt-get20:35:011
2098967993020,8cyclictest2329093-21ntpq22:56:261
2098963993025,4cyclictest1257490-21kworker/u8:1+flush-8:020:56:310
2098963993023,4cyclictest280-21systemd-journal23:10:590
2098963993020,7cyclictest2290424-21latency_hist22:20:000
2098967992924,3cyclictest2300854-21cpuspeed_turbos22:31:161
2098967992924,3cyclictest2261854-21irqrtprio21:51:201
2098967992924,3cyclictest2118153-21kthreadcore19:26:211
2098967992923,4cyclictest2429533-21unixbench_singl00:36:341
2098967992923,4cyclictest2235577-21unixbench_singl21:21:571
2098967992922,5cyclictest280-21systemd-journal22:47:591
2098963992925,3cyclictest2221271-21kworker/u8:0+flush-8:021:16:310
2098963992925,2cyclictest0-21swapper/020:19:590
2098963992924,3cyclictest2420396-21aten2_r5power_p00:31:150
2098963992923,4cyclictest1267827-21kworker/u8:0+events_unbound19:51:320
2098963992922,5cyclictest2314287-21ntpq22:41:280
2098963992922,5cyclictest2216067-21kworker/u8:3+flush-8:021:11:250
2098963992920,6cyclictest2329958-21latency_hist23:00:010
2098963992919,7cyclictest280-21systemd-journal19:30:380
2098969992823,3cyclictest2201699-21fschecks_time20:51:192
2098969992823,3cyclictest2201699-21fschecks_time20:51:192
2098969992822,4cyclictest2384913-21apt-get23:56:142
2098967992824,2cyclictest0-21swapper/123:50:001
2098967992823,3cyclictest0-21swapper/122:26:201
2098967992822,4cyclictest2167198-21kthreadcore20:16:201
2098967992820,6cyclictest2279091-21kworker/u8:1+flush-8:000:16:281
2098967992819,7cyclictest280-21systemd-journal22:51:591
2098967992819,6cyclictest280-21systemd-journal20:26:591
2098967992819,6cyclictest2389483-21latency_hist00:00:011
2098963992820,5cyclictest2384960-21cut23:56:160
2098963992820,3cyclictest2279091-21kworker/u8:1+flush-8:000:22:040
2098963992814,10cyclictest280-21systemd-journal20:15:000
2098969992723,2cyclictest2335587-21fschecks_time23:06:192
2098969992723,2cyclictest2335587-21fschecks_time23:06:192
2098969992723,2cyclictest2120258-21grep19:26:322
2098969992722,3cyclictest2281116-21cpuspeed_turbos22:11:162
2098967992721,5cyclictest1267827-21kworker/u8:0+flush-8:020:11:221
2098967992721,4cyclictest2349721-21awk23:20:011
2098967992721,4cyclictest2280248-21unixbench_singl22:06:341
2098967992721,4cyclictest2220700-21unixbench_singl21:06:341
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional