You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-12-02 - 09:26

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 #1, slot #6

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.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack1slot6s.osadl.org (updated Tue Dec 02, 2025 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24503999637,11cyclictest0-21swapper/120:25:071
24505999535,12cyclictest0-21swapper/221:35:222
24500999523,8cyclictest7663-21crond20:29:490
57012940,2sleep20-21swapper/221:30:172
2450099913,29cyclictest0-21swapper/021:25:210
2450099913,27cyclictest20154-21chrt19:45:270
193492910,3sleep3361ktimersoftd/319:45:143
24500999022,61cyclictest28996-21kworker/u8:100:05:070
24500999017,13cyclictest0-21swapper/023:39:420
2450099895,76cyclictest0-21swapper/022:09:530
247392880,6sleep3361ktimersoftd/321:05:033
247392880,6sleep3361ktimersoftd/321:05:033
24500998822,12cyclictest0-21swapper/023:15:100
24500998822,12cyclictest0-21swapper/023:15:100
24500998728,51cyclictest24501-21idleruntime-cro18:49:530
24500998629,9cyclictest30644-21munin-node20:10:030
24500998521,7cyclictest18478-21awk19:44:510
24500998521,7cyclictest18478-21awk19:44:510
24500998518,10cyclictest0-21swapper/022:14:590
2450099843,32cyclictest0-21swapper/020:05:150
24500998323,9cyclictest12673-21munin-node20:40:070
24500998228,10cyclictest19470-21wc00:15:020
2450099814,14cyclictest0-21swapper/023:49:410
2450099814,12cyclictest0-21swapper/019:16:380
2450099813,31cyclictest0-21swapper/022:25:070
24500998126,48cyclictest0-21swapper/022:55:070
24500998123,8cyclictest1369-21runrttasks20:15:520
2450099803,28cyclictest15315-21sshd20:45:030
24500998023,7cyclictest5192-21crond22:39:440
24500998019,12cyclictest0-21swapper/021:15:110
2450099794,28cyclictest0-21swapper/021:59:580
2450099793,29cyclictest9137-21munin-node19:25:120
24500997921,8cyclictest1243-21snmpd23:22:210
24500997919,9cyclictest0-21swapper/022:30:070
24500997919,9cyclictest0-21swapper/022:30:070
24500997919,15cyclictest0-21swapper/021:34:470
24500997915,17cyclictest0-21swapper/019:50:260
2450099785,29cyclictest0-21swapper/023:34:420
2450099784,67cyclictest0-21swapper/023:04:560
2450099784,31cyclictest0-21swapper/019:35:160
2450099784,29cyclictest0-21swapper/022:45:100
2450099783,29cyclictest13538-21latency_hist00:04:420
2450099783,29cyclictest13538-21latency_hist00:04:420
24500997822,8cyclictest14230-21cstates21:50:000
24500997818,12cyclictest0-21swapper/019:30:160
24500997812,16cyclictest0-21swapper/020:35:070
2450099779,18cyclictest0-21swapper/019:55:060
2450099774,14cyclictest0-21swapper/020:20:030
2450099773,28cyclictest28198-21ntpdc23:25:090
2450099773,15cyclictest0-21swapper/021:10:080
24500997725,8cyclictest1369-21runrttasks21:35:010
24500997719,7cyclictest15176-21kworker/0:120:59:590
2450099764,14cyclictest0-21swapper/020:30:230
2450099763,32cyclictest1243-21snmpd22:07:070
2450099763,28cyclictest1243-21snmpd19:11:370
2450099763,27cyclictest19926-21taskset23:09:580
2450099763,14cyclictest0-21swapper/021:20:020
24500997625,8cyclictest25225-21entropy21:05:080
24500997625,8cyclictest25225-21entropy21:05:080
24500997624,8cyclictest21853-21sshd20:57:540
2450099762,31cyclictest18086-21sshd21:55:590
24500997616,7cyclictest11261-21latency_hist23:59:420
24500997616,7cyclictest11261-21latency_hist23:59:420
2450099754,31cyclictest0-21swapper/023:50:050
2450099753,8cyclictest10932-21sshd21:41:000
2450099753,66cyclictest0-21swapper/021:44:590
2450099753,22cyclictest0-21swapper/018:51:040
24500997524,8cyclictest28236-21missed_timers18:55:180
24500997524,8cyclictest28236-21missed_timers18:55:180
24500997523,10cyclictest6758-21munin-node19:20:270
24500997522,8cyclictest11354-21missed_timers22:50:080
24500997512,13cyclictest0-21swapper/022:40:140
2450099743,13cyclictest0-21swapper/020:54:490
24500997416,12cyclictest0-21swapper/020:00:080
2450099735,31cyclictest0-21swapper/019:00:090
24500997322,8cyclictest1858-21cpu23:39:550
24500997322,11cyclictest1629-21nscd19:09:530
24500997318,10cyclictest0-21swapper/022:20:090
2450099723,15cyclictest0-21swapper/000:13:330
24500997124,8cyclictest14994-21munin-node23:00:040
24503996739,13cyclictest0-21swapper/123:19:561
24503996538,12cyclictest0-21swapper/122:54:561
8902643,53sleep20-21swapper/219:05:272
24503996439,11cyclictest0-21swapper/121:39:471
24503996438,11cyclictest0-21swapper/123:04:561
2450799634,51cyclictest0-21swapper/320:45:213
24505996335,12cyclictest0-21swapper/222:59:442
2450599633,54cyclictest4058-21munin-run21:29:472
2450599632,55cyclictest32642-21sshd22:28:582
24503996336,11cyclictest14994-21munin-node22:59:591
2450599623,50cyclictest25002-21cpuspeed_turbos21:05:052
2450599623,50cyclictest25002-21cpuspeed_turbos21:05:052
2450599622,54cyclictest0-21swapper/223:30:182
2450399624,52cyclictest0-21swapper/123:29:431
2450799614,50cyclictest0-21swapper/319:35:083
2450799614,49cyclictest0-21swapper/300:02:163
2450799614,49cyclictest0-21swapper/300:02:163
24507996114,39cyclictest2799-21kworker/3:223:39:543
24503996133,11cyclictest0-21swapper/121:33:151
2450799604,49cyclictest0-21swapper/323:14:563
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional