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2026-05-13 - 03:45
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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 Wed May 13, 2026 00:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
132482314285,19sleep20-21swapper/219:05:462
135902268241,17sleep10-21swapper/119:09:551
134842268237,21sleep00-21swapper/019:08:350
134042261229,21sleep30-21swapper/319:07:323
75402600,0sleep10-21swapper/123:07:161
5812600,0sleep10-21swapper/122:05:161
6942590,0sleep00-21swapper/021:45:410
236582590,0sleep00-21swapper/023:36:210
254472580,0sleep00-21swapper/021:41:120
261062570,0sleep20-21swapper/200:17:192
41122180,0sleep20-21swapper/222:26:242
141862180,0sleep30-21swapper/323:50:173
314702150,0sleep10-21swapper/123:21:281
21852110,0sleep20-21swapper/200:22:332
1373399119,2cyclictest28-21ksoftirqd/222:10:012
30742280,0sleep00-21swapper/021:25:180
23360280,0sleep00-21swapper/022:19:010
15037280,0sleep10-21swapper/119:10:181
137389986,1cyclictest34-21ksoftirqd/322:15:013
137389986,1cyclictest34-21ksoftirqd/300:00:003
27078270,0sleep20-21swapper/222:20:282
19053270,0sleep30-21swapper/300:32:543
137389976,1cyclictest34-21ksoftirqd/323:45:003
137389974,2cyclictest275-21systemd-journal00:16:393
137389974,2cyclictest20743-21irqstats23:15:163
137389973,3cyclictest24911-21systemctl22:00:203
137389973,2cyclictest275-21systemd-journal22:52:393
137339973,3cyclictest658-21snmpd22:12:432
137339971,3cyclictest5011-21grep00:05:002
137339970,1cyclictest12164-21/usr/sbin/munin20:15:142
137259973,3cyclictest658-21snmpd21:17:291
137259971,3cyclictest5008-21ls00:05:001
137209974,2cyclictest1029-21memory19:50:160
137209973,3cyclictest658-21snmpd23:19:210
137209973,3cyclictest658-21snmpd21:10:110
137209973,3cyclictest275-21systemd-journal22:47:440
137209971,3cyclictest23199-21munin-run19:30:010
137209970,7cyclictest20510-21ssh00:14:200
137389966,0cyclictest0-21swapper/322:28:163
137389965,1cyclictest34-21ksoftirqd/319:40:013
137389964,2cyclictest34-21ksoftirqd/320:10:003
137389964,1cyclictest34-21ksoftirqd/322:45:013
137389963,2cyclictest8329-21ssh00:06:133
137389963,2cyclictest7459-21ssh23:46:023
137389963,2cyclictest658-21snmpd22:33:273
137389963,2cyclictest5644-21ssh22:08:383
137389963,2cyclictest560-21gdbus00:36:193
137389963,2cyclictest5458-21sh23:05:393
137389963,2cyclictest504-21dbus-daemon21:45:003
137389963,2cyclictest31388-21sh23:02:043
137389963,2cyclictest31158-21cat21:45:143
137389963,2cyclictest275-21systemd-journal21:14:383
137389963,2cyclictest275-21systemd-journal20:54:213
137389963,2cyclictest275-21systemd-journal19:32:053
137389963,2cyclictest275-21systemd-journal00:13:233
137389963,2cyclictest18965-21sh22:55:123
137389963,2cyclictest14705-21awk21:15:213
137389963,2cyclictest11433-21ssh21:52:313
137389962,3cyclictest795-21sshd23:22:483
137389962,3cyclictest658-21snmpd23:30:583
137389962,3cyclictest658-21snmpd22:21:203
137389962,3cyclictest658-21snmpd21:01:593
137389962,3cyclictest658-21snmpd20:00:423
137389962,3cyclictest658-21snmpd19:51:543
137389962,3cyclictest658-21snmpd19:49:453
137389962,3cyclictest658-21snmpd19:41:063
137389962,3cyclictest658-21snmpd19:27:023
137389962,3cyclictest504-21dbus-daemon21:23:323
137389962,3cyclictest14481-21expr20:20:153
137389962,2cyclictest3945-1kworker/u9:222:40:173
137389962,2cyclictest29435-40rsyslog-rotate00:00:003
137389960,6cyclictest0-21swapper/323:39:583
137389960,6cyclictest0-21swapper/323:10:503
137389960,6cyclictest0-21swapper/321:36:243
137389960,6cyclictest0-21swapper/321:30:393
137389960,5cyclictest7249-21grep00:25:203
137389960,3cyclictest31225-21awk20:55:183
137389960,0cyclictest0-21swapper/319:55:153
137339966,0cyclictest0-21swapper/222:45:222
137339963,2cyclictest8041-21gzip20:05:172
137339963,2cyclictest658-21snmpd21:56:342
137339963,2cyclictest30862-21ssh23:01:402
137339963,2cyclictest275-21systemd-journal21:12:232
137339963,2cyclictest26312-21taskset22:59:362
137339963,2cyclictest25639-21sh22:00:342
137339963,2cyclictest24388-21ntpq19:30:172
137339963,2cyclictest23514-21diskstats20:40:142
137339963,2cyclictest22894-21ssh23:16:162
137339963,2cyclictest21271-21diskstats20:35:122
137339963,2cyclictest16957-21ssh00:11:332
137339963,2cyclictest13174-21sh22:50:572
137339962,3cyclictest658-21snmpd23:37:332
137339962,3cyclictest658-21snmpd23:30:302
137339962,3cyclictest658-21snmpd22:41:112
137339962,3cyclictest658-21snmpd22:35:172
137339962,3cyclictest658-21snmpd21:21:512
137339962,3cyclictest658-21snmpd20:11:212
137339962,3cyclictest658-21snmpd19:45:092
137339962,3cyclictest658-21snmpd19:27:112
137339962,3cyclictest658-21snmpd19:11:572
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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