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2026-03-24 - 12:31
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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 rackaslot8.osadl.org (updated Tue Mar 24, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
159692306276,19sleep20-21swapper/219:08:062
160862282255,18sleep10-21swapper/119:09:291
159082277246,20sleep00-21swapper/019:07:240
158142271239,21sleep30-21swapper/319:06:223
184772630,0sleep00-21swapper/021:35:580
216862610,0sleep10-21swapper/123:15:181
284572600,0sleep328450-21perf23:20:013
131282580,0sleep10-21swapper/122:50:321
297642570,0sleep20-21swapper/200:38:232
120972570,0sleep20-21swapper/222:50:172
115442570,0sleep20-21swapper/222:10:572
170542550,0sleep30-21swapper/323:51:193
4842540,0sleep00-21swapper/022:43:380
186202530,0sleep10-21swapper/100:31:101
292932500,0sleep00-21swapper/021:23:240
218692260,0sleep10-21swapper/100:14:201
153492200,0sleep20-21swapper/223:11:272
200022180,0sleep00-21swapper/023:34:190
66082140,0sleep00-21swapper/022:46:540
259512140,0sleep00-21swapper/020:40:130
310042130,0sleep30-21swapper/321:24:443
320862120,0sleep10-21swapper/123:02:171
211912110,0sleep10-21swapper/122:16:561
168342110,0sleep10-21swapper/121:35:141
1622899109,1cyclictest28-21ksoftirqd/222:00:022
126162100,0chrt0-21swapper/223:30:012
7355290,0chrt0-21swapper/023:45:200
7355290,0chrt0-21swapper/023:45:200
162319992,5cyclictest141rcu_preempt22:05:563
162289993,3cyclictest25062-21munin-run20:40:002
162289990,8cyclictest30339-21cat20:50:142
162209991,5cyclictest22757-21basename00:15:000
5032280,0sleep30-21swapper/300:04:083
22529280,0sleep30-21swapper/300:14:503
2207280,0sleep10-21swapper/122:44:551
162319987,1cyclictest34-21ksoftirqd/322:35:013
162319984,2cyclictest275-21systemd-journal23:05:233
162319983,3cyclictest275-21systemd-journal21:57:403
162289980,7cyclictest0-21swapper/222:40:182
162259986,1cyclictest14361-21taskset22:32:241
162259983,3cyclictest275-21systemd-journal23:25:011
162259982,4cyclictest13639-21munin-run20:15:001
3302270,0sleep30-21swapper/321:46:273
162319973,3cyclictest658-21snmpd23:42:173
162319973,3cyclictest658-21snmpd19:54:263
162319973,3cyclictest658-21snmpd19:31:343
162319973,3cyclictest504-21dbus-daemon19:10:373
162319973,3cyclictest12622-21ntpq20:10:173
162319973,2cyclictest491-21systemd-logind20:45:013
162319972,3cyclictest275-21systemd-journal20:50:063
162289976,1cyclictest28-21ksoftirqd/222:40:012
162289975,1cyclictest18323-21ssh00:11:372
162289973,3cyclictest504-21dbus-daemon23:40:012
162259974,2cyclictest504-21dbus-daemon21:40:181
162259973,3cyclictest658-21snmpd22:03:241
162259970,4cyclictest14446-21idleruntime-cro00:10:001
162259970,1cyclictest9683-21expr22:10:161
162259970,1cyclictest6305-21diskmemload23:10:391
162209973,3cyclictest658-21snmpd00:02:150
162209973,3cyclictest504-21dbus-daemon21:53:040
162209973,3cyclictest491-21systemd-logind19:44:540
162209973,3cyclictest275-21systemd-journal22:11:000
162209972,3cyclictest2207-21ls19:50:010
162209971,4cyclictest8886-21awk20:05:010
162209971,3cyclictest7098-21sh21:30:000
13579270,1sleep10-21swapper/121:52:581
162319965,1cyclictest34-21ksoftirqd/300:30:003
162319965,1cyclictest34-21ksoftirqd/300:10:003
162319965,1cyclictest34-21ksoftirqd/300:00:003
162319963,2cyclictest7884-21ssh22:28:483
162319963,2cyclictest5853-21head21:05:213
162319963,2cyclictest31448-21ssh23:01:473
162319963,2cyclictest275-21systemd-journal19:38:243
162319963,2cyclictest2084-21sh23:23:173
162319963,2cyclictest17610-21sed21:35:193
162319963,1cyclictest0-21swapper/323:33:533
162319963,1cyclictest0-21swapper/322:03:193
162319962,3cyclictest658-21snmpd23:35:083
162319962,3cyclictest658-21snmpd23:25:023
162319962,3cyclictest658-21snmpd22:48:193
162319962,3cyclictest658-21snmpd22:44:403
162319962,3cyclictest658-21snmpd22:15:433
162319962,3cyclictest658-21snmpd21:52:423
162319962,3cyclictest658-21snmpd21:43:143
162319962,3cyclictest658-21snmpd21:32:443
162319962,3cyclictest658-21snmpd20:33:573
162319962,3cyclictest658-21snmpd19:57:203
162319962,3cyclictest658-21snmpd19:41:473
162319962,3cyclictest275-21systemd-journal23:46:583
162319962,3cyclictest275-21systemd-journal23:46:583
162319962,3cyclictest275-21systemd-journal21:17:583
162319962,3cyclictest2309-21ls19:50:013
162319962,3cyclictest1541-21seq20:56:383
162319962,3cyclictest11322-11brltty20:35:513
162319962,1cyclictest0-21swapper/323:12:053
162319962,1cyclictest0-21swapper/322:56:393
162319962,1cyclictest0-21swapper/300:37:203
162319962,1cyclictest0-21swapper/300:31:003
162319960,6cyclictest0-21swapper/322:12:233
162319960,6cyclictest0-21swapper/300:21:563
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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