You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-07-09 - 07:08

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 Thu Jul 09, 2026 00:44:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
143411621870,2sleep3481ktimers/323:10:163
1188188996052,6cyclictest1280053-21kworker/u8:0+flush-8:020:50:200
1188188996052,6cyclictest1280053-21kworker/u8:0+flush-8:020:50:200
1188188995954,3cyclictest1419314-21kworker/u8:3+events_unbound00:15:230
1188193995545,7cyclictest1704890-21systemd-journal20:44:592
1188192995540,13cyclictest1399886-21apt-get22:40:011
1188188995547,6cyclictest1410172-21cp22:50:010
1188192995244,6cyclictest1369678-21latency_hist22:10:001
1188188995144,4cyclictest1205156-21kworker/u8:1+flush-8:019:30:050
1188188995140,9cyclictest1155387-21kworker/u8:3+flush-8:020:25:210
1188192995029,6cyclictest1704890-21systemd-journal21:10:091
1188188995045,3cyclictest1294285-21kworker/u8:2+flush-8:023:15:060
1188192994939,8cyclictest1298677-21ntpq20:55:191
1188192994939,8cyclictest1298677-21ntpq20:55:191
1188188994944,4cyclictest1178771-21kworker/u8:2+flush-8:020:05:250
1188188994840,6cyclictest1294285-21kworker/u8:2+flush-8:022:20:050
1188188994738,6cyclictest1425157-21latency_hist23:05:010
1188188994535,8cyclictest1374732-21cp22:15:010
1188188994438,4cyclictest1294285-21kworker/u8:2+events_unbound21:15:060
14008212430,4sleep375-21kworker/3:1+mm_percpu_wq22:40:103
1188192994337,4cyclictest1490111-21apt-get00:10:011
1188192994336,5cyclictest1220297-21/usr/sbin/munin19:40:211
1188188994332,9cyclictest1358847-21ntpq21:55:190
1188188994237,4cyclictest1178771-21kworker/u8:2+flush-8:020:35:220
1188188994232,7cyclictest1414309-21ntpq22:50:170
1188192994134,5cyclictest1214864-21latency_hist19:35:001
1188192994133,6cyclictest1505777-21apt-get00:25:051
1188192994132,7cyclictest1303625-21ntpq21:00:161
1188192994132,6cyclictest1704890-21systemd-journal20:55:001
1188192994132,6cyclictest1704890-21systemd-journal20:54:591
1188192994131,8cyclictest1319506-21cp21:20:001
1188192994030,7cyclictest1500526-21latency_hist00:20:011
1188188994030,8cyclictest1340230-21/usr/sbin/munin21:40:190
1188188993934,3cyclictest1155387-21kworker/u8:3+events_unbound20:40:230
1188188993931,6cyclictest1470192-21latency_hist23:50:000
1188188993925,10cyclictest1704890-21systemd-journal22:05:080
1188193993830,5cyclictest1430468-21base6423:10:012
1188188993833,4cyclictest1314092-21kworker/u8:3+flush-8:022:15:210
1188188993831,5cyclictest1419314-21kworker/u8:3+events_unbound00:05:080
1188188993732,4cyclictest1220568-21kworker/u8:0+flush-8:019:40:190
1188188993731,4cyclictest1419314-21kworker/u8:3+flush-8:023:35:100
1188188993731,4cyclictest1294285-21kworker/u8:2+flush-8:022:30:060
1188188993730,5cyclictest1314092-21kworker/u8:3+flush-8:021:30:190
1188192993630,4cyclictest1350174-21apt-get21:50:041
1188188993632,3cyclictest1514735-21kworker/u8:1+events_unbound00:35:240
1188188993632,3cyclictest1294285-21kworker/u8:2+events_unbound21:45:210
1188188993629,5cyclictest1155387-21kworker/u8:3+flush-8:019:20:210
1188188993628,6cyclictest1360036-21apt-get22:00:040
1188188993627,6cyclictest1430320-21apt-get23:10:010
1188192993528,5cyclictest1475373-21/usr/sbin/munin23:55:171
1188192993526,7cyclictest1333850-21ntpq21:30:181
1188188993530,4cyclictest1205156-21kworker/u8:1+flush-8:019:35:230
1188188993529,4cyclictest1294285-21kworker/u8:2+flush-8:021:00:190
1188188993526,7cyclictest1338809-21ntpq21:35:190
1188188993526,6cyclictest1155387-21kworker/u8:3+flush-8:020:10:210
1188193993428,4cyclictest1464741-21unixbench_multi23:40:252
1188193993427,5cyclictest1320160-21cut21:20:092
1188192993428,3cyclictest1411095-21irqcore22:50:111
1188192993427,5cyclictest1505527-21latency_hist00:25:001
1188192993426,6cyclictest1200195-21apt-get19:20:051
1188188993430,3cyclictest1419314-21kworker/u8:3+flush-8:000:25:250
1188188993430,3cyclictest1280053-21kworker/u8:0+events_unbound21:05:230
1188188993429,3cyclictest1294285-21kworker/u8:2+events_unbound22:35:230
1188188993422,9cyclictest1704890-21systemd-journal00:10:080
1188188993421,10cyclictest1704890-21systemd-journal20:30:080
118818899340,32cyclictest1455275-21munin-run23:35:010
1188193993328,3cyclictest1215134-21apt-config19:35:012
1188192993326,5cyclictest1325062-21apt-get21:25:051
1188192993325,6cyclictest1359767-21latency_hist22:00:021
1188192993321,9cyclictest1704890-21systemd-journal23:00:001
1188188993329,3cyclictest1294285-21kworker/u8:2+events_unbound23:40:230
1188188993327,4cyclictest1155387-21kworker/u8:3+flush-8:020:00:200
1188188993326,5cyclictest1480117-40logrotate00:00:000
1188193993224,6cyclictest1704890-21systemd-journal19:29:082
1188192993227,3cyclictest1450782-21tr23:30:051
1188192993226,4cyclictest1314092-21kworker/u8:3+flush-8:022:10:231
1188192993223,6cyclictest1704890-21systemd-journal20:24:591
1188188993228,3cyclictest1294285-21kworker/u8:2+flush-8:023:11:130
1188188993227,4cyclictest1178771-21kworker/u8:2+flush-8:020:15:090
1188188993227,4cyclictest1178771-21kworker/u8:2+flush-8:019:10:210
12033362310,4sleep3481ktimers/319:20:153
1188193993126,4cyclictest1339771-21sendmail21:40:002
1188192993127,3cyclictest1195948-21irqrtprio19:15:141
1188192993126,4cyclictest1155387-21kworker/u8:3+events_unbound20:40:001
1188192993124,5cyclictest1188316-21apt-get19:10:041
1188192993122,7cyclictest1704890-21systemd-journal20:35:001
1188188993127,3cyclictest1314092-21kworker/u8:3+events_unbound21:25:090
1188188993127,3cyclictest1294285-21kworker/u8:2+events_unbound22:55:180
1188188993127,3cyclictest1178771-21kworker/u8:2+events_unbound19:55:090
1188188993127,3cyclictest1155387-21kworker/u8:3+events_unbound19:45:090
1188188993126,4cyclictest1419314-21kworker/u8:3+events_unbound23:25:220
1188188993125,4cyclictest1155387-21kworker/u8:3+flush-8:020:45:080
1188193993020,8cyclictest1504586-21ntpq00:20:152
1188192993023,5cyclictest1515632-21apt-get00:35:041
1188192993023,5cyclictest1515194-40mandb00:32:531
1188192993023,5cyclictest1515194-40mandb00:32:521
1188192993020,7cyclictest1704890-21systemd-journal23:15:081
1188188993025,3cyclictest1295190-21cut20:55:100
1188188993025,3cyclictest1295190-21cut20:55:090
1188188993020,7cyclictest1444470-21ntpq23:20:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional