You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-09-20 - 07:09

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 #2, 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.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 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 rack2slot7s.osadl.org (updated Sun Sep 20, 2026 00:42:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1253926996352,7cyclictest3734659-21cups-browsed21:51:270
1253926995324,17cyclictest151ktimers/022:16:130
1253930995243,6cyclictest1285473-21systemd-run20:55:012
1253930995230,18cyclictest1396057-21munin-plugin-st00:05:002
1253930995129,19cyclictest1321532-21ssh22:01:122
1253930994823,3cyclictest0-21swapper/223:56:222
1253930994823,3cyclictest0-21swapper/223:56:222
125392699482,35cyclictest151ktimers/019:21:200
1253930994732,12cyclictest1341682-21kworker/u8:9-xprtiod22:50:002
1253930994727,17cyclictest0-21swapper/200:25:012
1253930994721,4cyclictest1283838-21unixbench_multi20:46:262
1253930994719,8cyclictest1265263-21ntp_kernel_err19:46:162
1253927994739,5cyclictest1368890-21systemd-run23:20:021
1253927994739,5cyclictest1368890-21systemd-run23:20:021
1253927994734,10cyclictest1309625-21sh21:41:171
1253927994638,5cyclictest1411137-21munin-run00:30:011
1253927994637,5cyclictest0-21swapper/123:46:201
125393099454,13cyclictest1342881-21ssh22:36:132
125393099454,13cyclictest1342881-21ssh22:36:132
1253930994522,3cyclictest0-21swapper/221:46:192
1253926994536,6cyclictest0-21swapper/000:16:160
1253930994437,3cyclictest0-21swapper/223:51:142
1253927994436,5cyclictest1280994-21systemd-run20:40:011
125392799434,30cyclictest1321851-21ssh22:01:181
1253930994234,5cyclictest1393066-21cups-browsed00:11:152
1253930994221,3cyclictest0-21swapper/200:26:062
1253930994213,10cyclictest421-21dbus-daemon22:41:032
1253930994213,10cyclictest421-21dbus-daemon22:41:032
125392799425,30cyclictest1333943-21ssh22:21:181
1253927994230,8cyclictest1361241-21sh23:06:221
1253926994234,5cyclictest1-21systemd21:45:010
125393099413,13cyclictest1327813-21sshd22:11:172
1253927994135,3cyclictest0-21swapper/100:31:151
125392799413,31cyclictest1330818-21ssh22:16:131
1253927994132,6cyclictest1346526-21tail22:41:271
1253927994132,6cyclictest1346526-21tail22:41:271
1253926994131,7cyclictest12650irq/32-eth022:01:220
1253926994116,17cyclictest151ktimers/023:56:180
1253926994116,17cyclictest151ktimers/023:56:180
125393099405,15cyclictest1336886-21ssh22:26:142
1253930994032,5cyclictest1308398-21cron21:40:002
1253930994032,4cyclictest0-21swapper/222:56:172
1253930994022,14cyclictest1000-21mta-sts-daemon00:07:422
1253927994031,6cyclictest1308586-21latency_hist21:40:021
1253927994029,8cyclictest1305364-21/usr/sbin/munin21:35:021
1253926994030,5cyclictest151ktimers/023:21:200
125393099393,32cyclictest1291256-21ssh21:11:152
1253930993931,3cyclictest0-21swapper/223:41:182
1253930993922,4cyclictest1003-21mta-sts-daemon23:00:232
1253927993931,5cyclictest1325350-21unixbench-2d22:06:281
1253927993931,5cyclictest1282495-21systemd-run20:45:011
125392799392,30cyclictest1327865-21ssh22:11:191
125392699394,26cyclictest1352040-21ssh22:51:180
1253926993930,7cyclictest1304111-21ssh21:31:280
1253926993929,8cyclictest1404730-21kworker/u8:15-rpciod00:21:170
1253930993830,4cyclictest0-21swapper/221:26:192
1253930993829,6cyclictest1279482-21systemd-run20:35:012
1253930993829,5cyclictest1379773-21grep23:36:282
1253927993830,3cyclictest0-21swapper/123:38:291
1253927993828,4cyclictest0-21swapper/121:51:201
125392799382,26cyclictest1397312-21ssh00:06:161
1253926993832,4cyclictest1356769-21munin-run23:00:010
1253926993830,5cyclictest1333276-21aten_r2power_fr22:21:050
1253926993829,6cyclictest1293910-21ssh21:16:090
1253926993826,6cyclictest151ktimers/020:31:150
1253930993727,7cyclictest1304109-21tail21:31:282
1253930993725,9cyclictest1294308-21ntp_kernel_pll_21:16:162
1253927993730,4cyclictest1408150-21systemd-run00:25:021
1253927993730,4cyclictest1353816-21latency_hist22:55:021
1253927993728,7cyclictest0-21swapper/100:00:011
1253927993728,7cyclictest0-21swapper/100:00:011
1253926993731,3cyclictest1001-21mta-sts-daemon23:31:160
1253927993628,5cyclictest1267412-21cut19:55:011
1253927993627,6cyclictest420-21avahi-daemon00:16:461
1253927993625,8cyclictest1276431-21munin-plugin-st20:25:001
1253926993629,4cyclictest1326574-21munin-run22:10:010
1253926993621,12cyclictest1368901-21latency_hist23:20:020
1253926993621,12cyclictest1368901-21latency_hist23:20:020
1253930993527,5cyclictest1331347-21ssh22:16:262
1253930993527,5cyclictest1282482-21idleruntime-cro20:45:012
1253930993526,5cyclictest1286998-21systemd-run21:00:012
1253927993525,7cyclictest1348991-21ssh22:46:161
1253927993524,7cyclictest1255364-21unixbench_singl19:11:251
1253926993530,2cyclictest0-21swapper/000:10:170
1253926993528,4cyclictest1361117-21ntp_kernel_pll_23:06:170
1253926993527,5cyclictest1265071-21kernelversion19:46:130
125392699351,29cyclictest1394404-21sh00:01:210
1253930993425,5cyclictest1002-21mta-sts-daemon21:42:192
1253930993424,7cyclictest1362840-21systemd-run23:10:012
1253927993428,3cyclictest0-21swapper/123:11:141
1253927993428,3cyclictest0-21swapper/121:56:201
1253927993426,5cyclictest1289972-21idleruntime-cro21:10:011
1253927993423,8cyclictest1286354-21ntp_kernel_pll_20:56:161
125392799342,25cyclictest1257815-21sshd19:21:161
1253927993418,11cyclictest421-21dbus-daemon23:30:361
1253926993426,5cyclictest1341654-21cron22:35:010
1253926993425,4cyclictest0-21swapper/023:41:170
1253926993424,7cyclictest1371902-21kworker/u8:7-xprtiod00:09:100
125392699341,27cyclictest1327818-21sshd22:11:170
1253930993328,2cyclictest0-21swapper/223:35:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional