You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-11-20 - 23:59
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 50 highest latencies:
System rackbslot7.osadl.org (updated Thu Nov 20, 2025 12:44:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12347991123,35cyclictest2417-21timerwakeupswit09:35:030
123479910951,51cyclictest0-21swapper/011:44:320
123479910951,51cyclictest0-21swapper/011:44:320
12347991092,35cyclictest26548-21uniq07:49:500
123479910734,66cyclictest0-21swapper/011:09:440
12347991073,28cyclictest7488-21fschecks_time09:44:540
12347991072,33cyclictest31205-21/usr/sbin/munin08:04:520
12347991063,22cyclictest31828-21ssh11:24:520
12347991063,22cyclictest31828-21ssh11:24:520
12347991054,27cyclictest12230-21awk10:49:580
10874210510,68sleep210891-21/usr/sbin/munin07:04:402
10874210510,68sleep210891-21/usr/sbin/munin07:04:402
12347991043,26cyclictest5251-21/usr/sbin/munin12:30:020
12347991043,26cyclictest5251-21/usr/sbin/munin12:30:020
12347991042,38cyclictest16532-21kworker/u18:1+flush-179:011:29:470
12347991034,35cyclictest3081-21latency_hist10:34:320
12347991033,38cyclictest22881-21latency_hist07:39:320
123479910328,70cyclictest0-21swapper/009:56:100
123479910317,31cyclictest15383-21unixbench_singl10:55:070
123559910162,33cyclictest22421-21/usr/sbin/munin12:04:472
12347991014,36cyclictest456-21latency_hist10:29:320
12347991014,35cyclictest22256-21ssh12:04:430
12347991014,31cyclictest355-21runrttasks12:09:510
12347991013,41cyclictest32020-21timerwakeupswit12:20:040
12347991013,34cyclictest14078-21latency_hist07:14:320
123479910123,21cyclictest26546-21grep09:20:020
123479910038,56cyclictest0-21swapper/011:49:300
123479910038,56cyclictest0-21swapper/011:49:300
12347991003,31cyclictest12232-21latency_hist07:09:330
12347991003,31cyclictest12232-21latency_hist07:09:330
123479910029,9cyclictest0-21swapper/009:49:480
12355999956,37cyclictest31730-21proc_pri12:20:012
1234799994,34cyclictest19021-21fschecks_time10:04:510
12347999941,52cyclictest18985-21kworker/u17:1+xprtiod11:17:580
1234799993,38cyclictest1280-21latency_hist09:34:310
1234799993,36cyclictest355-21runrttasks12:02:160
12347999933,58cyclictest15326-21latency_hist08:54:320
1234799992,35cyclictest22254-21sh09:12:550
1234799983,37cyclictest4119-21fschecks_time08:19:530
1234799983,36cyclictest13892-21cstates11:50:150
1234799983,34cyclictest3241-21acpi10:34:400
1234799983,32cyclictest29459-21grep09:25:070
1234799983,26cyclictest23296-21/usr/sbin/munin07:40:210
1234799983,24cyclictest19851-21/usr/sbin/munin07:29:500
1234799983,24cyclictest19851-21/usr/sbin/munin07:29:500
1234799982,35cyclictest18175-21cstates07:24:460
1234799982,35cyclictest18175-21cstates07:24:460
1234799982,35cyclictest17799-21modprobe07:24:290
1234799974,32cyclictest1506-21/usr/sbin/munin12:24:470
12347999725,10cyclictest0-21swapper/009:14:500
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional