You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2023-06-01 - 18:01

x86 Intel Core i5-8265UE @1600 MHz, Linux 5.10.41-rt42 (Profile)

Latency plot of system in rack #a, slot #8
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 -q
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 rackaslot8.osadl.org (updated Thu Jun 01, 2023 12:44:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
251122324291,21sleep00-21swapper/007:05:540
253932310277,21sleep30-21swapper/307:09:253
252462292263,18sleep10-21swapper/107:07:351
251242288253,20sleep20-21swapper/207:06:032
262542620,0sleep30-21swapper/309:16:543
7772600,0sleep30-21swapper/310:35:353
37772580,0sleep20-21swapper/212:31:592
266262580,0sleep10-21swapper/111:43:531
152352530,0sleep10-21swapper/109:58:451
253462230,0sleep334-21ksoftirqd/312:25:303
200482230,4sleep122-21ksoftirqd/110:50:311
287402210,0sleep30-21swapper/312:06:213
311732180,0chrt0-21swapper/010:35:090
221822170,1sleep00-21swapper/009:39:350
12742170,0sleep20-21swapper/211:01:052
189882160,0sleep10-21swapper/110:25:291
98552150,0sleep10-21swapper/111:32:001
287722140,1sleep00-21swapper/011:45:190
269762130,0sleep00-21swapper/010:55:590
223992120,0sleep30-21swapper/310:04:123
102542120,0sleep00-21swapper/011:32:230
2556199103,4cyclictest7891-21basename12:15:011
255699996,2cyclictest12706-21cat11:10:253
255649994,3cyclictest25948-21systemd-journal10:01:042
255619996,2cyclictest25948-21systemd-journal12:05:251
255579996,3cyclictest12-21ksoftirqd/012:00:010
255579994,3cyclictest25948-21systemd-journal12:02:280
9324280,0chrt0-21swapper/310:42:363
7193280,0sleep20-21swapper/211:30:242
255699985,2cyclictest34-21ksoftirqd/307:30:013
255699984,3cyclictest508-21dbus-daemon12:40:013
255699984,3cyclictest29741-11brltty10:58:133
255699984,3cyclictest25948-21systemd-journal09:40:003
255699984,3cyclictest25948-21systemd-journal08:42:123
255699983,3cyclictest25948-21systemd-journal11:24:543
255649984,3cyclictest508-21dbus-daemon10:15:392
255649984,3cyclictest25948-21systemd-journal08:23:022
255649983,3cyclictest25948-21systemd-journal12:05:222
255649983,3cyclictest25948-21systemd-journal11:45:102
255649983,3cyclictest25948-21systemd-journal09:49:242
255619984,3cyclictest508-21dbus-daemon12:34:101
255619984,3cyclictest25948-21systemd-journal11:00:021
255619983,3cyclictest25948-21systemd-journal10:55:001
255579986,1cyclictest121ksoftirqd/011:15:010
255579984,3cyclictest30969-21cron11:25:010
255579984,2cyclictest508-21dbus-daemon08:04:390
255579984,2cyclictest25948-21systemd-journal08:55:330
255579983,3cyclictest25948-21systemd-journal11:01:340
255579980,7cyclictest18971-21chrt08:05:150
255699976,1cyclictest29741-11brltty09:42:433
255699974,2cyclictest31825-21systemctl10:10:283
255699973,3cyclictest508-21dbus-daemon09:50:143
255699973,3cyclictest3758-21snmpd11:47:573
255699973,1cyclictest0-21swapper/312:19:193
255699972,4cyclictest3758-21snmpd10:28:033
255699972,3cyclictest25948-21systemd-journal11:00:433
255699972,3cyclictest25948-21systemd-journal09:58:593
255699972,3cyclictest25948-21systemd-journal08:59:323
255699971,4cyclictest25948-21systemd-journal10:19:503
255649973,3cyclictest508-21dbus-daemon12:38:452
255649973,3cyclictest508-21dbus-daemon11:40:012
255649973,3cyclictest508-21dbus-daemon10:52:482
255649973,3cyclictest508-21dbus-daemon08:50:342
255649973,3cyclictest508-21dbus-daemon07:20:012
255649973,3cyclictest25948-21systemd-journal11:25:452
255649973,3cyclictest25948-21systemd-journal09:21:302
255649973,3cyclictest1-21systemd07:52:102
255649973,1cyclictest0-21swapper/212:02:122
255649973,1cyclictest0-21swapper/209:36:232
255649973,1cyclictest0-21swapper/209:31:332
255649972,3cyclictest25948-21systemd-journal08:14:382
255649970,4cyclictest7879-21munin-run12:15:002
255619973,3cyclictest508-21dbus-daemon10:45:171
255619973,3cyclictest3758-21snmpd12:23:131
255619973,3cyclictest3758-21snmpd09:31:251
255619973,3cyclictest31108-21ntpq09:45:451
255619973,3cyclictest22-21ksoftirqd/111:21:581
255619973,3cyclictest19821-21sshd09:12:301
255619973,3cyclictest18971-21cut12:00:201
255619973,3cyclictest12206-21apt-get07:50:201
255619973,3cyclictest0-21swapper/109:36:031
255619973,1cyclictest0-21swapper/110:11:071
255619972,4cyclictest3758-21snmpd10:31:551
255619972,3cyclictest25948-21systemd-journal10:38:371
255619972,3cyclictest25948-21systemd-journal10:05:061
255619972,3cyclictest25948-21systemd-journal07:17:581
255619971,3cyclictest23205-21munin-run10:05:001
255579974,2cyclictest508-21dbus-daemon07:24:130
255579974,2cyclictest227742sleep008:11:450
255579973,3cyclictest508-21dbus-daemon11:51:370
255579973,3cyclictest508-21dbus-daemon09:06:250
255579973,3cyclictest3758-21snmpd09:29:220
255579973,3cyclictest3758-21snmpd09:00:120
255579973,3cyclictest25948-21systemd-journal10:24:490
255579973,3cyclictest22252-21ssh11:40:260
255579973,3cyclictest1-21systemd12:17:290
255579973,3cyclictest0-21swapper/011:18:460
255579973,3cyclictest0-21swapper/010:43:110
255579973,1cyclictest0-21swapper/012:05:550
255579973,1cyclictest0-21swapper/009:31:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional