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2025-12-31 - 14:53
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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 Dec 31, 2025 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
195732291265,17sleep20-21swapper/207:07:212
195512279248,21sleep00-21swapper/007:07:030
194692275214,48sleep10-21swapper/107:05:591
195442268237,21sleep30-21swapper/307:06:573
93232590,0sleep10-21swapper/112:16:151
286342560,0sleep00-21swapper/012:09:170
110962550,0sleep20-21swapper/209:28:552
273462530,0sleep30-21swapper/309:56:063
155862220,0sleep015570-21munin-run11:25:010
301022190,0sleep00-21swapper/011:14:390
245812190,0sleep20-21swapper/212:06:082
299242180,0sleep10-21swapper/109:20:251
297252160,0sleep20-21swapper/209:39:432
31392130,0sleep10-21swapper/112:13:021
85882110,0sleep00-21swapper/010:05:010
1991299109,1cyclictest28-21ksoftirqd/210:40:002
1991099109,1cyclictest22-21ksoftirqd/111:00:011
199129991,7cyclictest21932-21dump-pmu-power08:25:002
199039994,2cyclictest10978-21memory11:40:170
4089280,0sleep20-21swapper/210:59:412
19955280,0sleep30-21swapper/309:52:023
199169984,3cyclictest275-21systemd-journal10:02:303
199129985,2cyclictest28-21ksoftirqd/207:20:012
199129984,3cyclictest658-21snmpd11:50:132
199109983,1cyclictest18393-21cron11:45:001
16180280,0sleep10-21swapper/111:05:551
27828270,1sleep127823-21apt-get11:50:131
199169976,1cyclictest34-21ksoftirqd/311:55:003
199169976,1cyclictest34-21ksoftirqd/308:50:013
199169975,1cyclictest34-21ksoftirqd/312:00:013
199169975,1cyclictest34-21ksoftirqd/307:50:013
199169973,3cyclictest504-21dbus-daemon12:10:013
199169973,3cyclictest275-21systemd-journal11:00:003
199169973,3cyclictest275-21systemd-journal08:43:293
199169973,2cyclictest674-21lldpd11:26:233
199169973,1cyclictest0-21swapper/312:01:563
199129975,1cyclictest28-21ksoftirqd/210:20:012
199109975,1cyclictest22-21ksoftirqd/111:15:011
199109974,2cyclictest658-21snmpd10:42:141
199109974,2cyclictest21406-21cron09:35:001
199109973,3cyclictest658-21snmpd08:07:391
199109973,3cyclictest658-21snmpd07:46:301
199109973,3cyclictest658-21snmpd07:18:551
199109973,3cyclictest504-21dbus-daemon08:21:481
199109973,3cyclictest275-21systemd-journal07:23:401
199109971,4cyclictest0-21swapper/109:53:491
199039973,3cyclictest275-21systemd-journal11:31:110
199039973,3cyclictest275-21systemd-journal08:40:000
199039973,3cyclictest275-21systemd-journal07:43:420
199039971,4cyclictest16078-21rm11:25:140
13936270,0sleep00-21swapper/009:49:040
199169966,0cyclictest0-21swapper/312:35:023
199169966,0cyclictest0-21swapper/311:00:523
199169966,0cyclictest0-21swapper/310:32:583
199169963,2cyclictest8227-21ssh10:42:463
199169963,2cyclictest7463-21chrt09:02:523
199169963,2cyclictest6877-21grep12:15:143
199169963,2cyclictest658-21snmpd10:54:233
199169963,2cyclictest658-21snmpd07:58:513
199169963,2cyclictest658-21snmpd07:37:563
199169963,2cyclictest4820-21sh12:32:133
199169963,2cyclictest25427-21cat12:25:213
199169963,2cyclictest24896-21fschecks_time08:30:153
199169963,2cyclictest14621-21timerwakeupswit08:05:203
199169963,2cyclictest13346-21rm11:05:023
199169963,2cyclictest10770-21ssh11:21:393
199169963,2cyclictest10718-21vmstat10:05:213
199169962,3cyclictest671-21ntpd11:35:183
199169962,3cyclictest658-21snmpd12:10:313
199169962,3cyclictest658-21snmpd11:46:483
199169962,3cyclictest658-21snmpd10:28:263
199169962,3cyclictest658-21snmpd08:35:193
199169962,3cyclictest658-21snmpd07:30:233
199169962,3cyclictest658-21snmpd07:23:493
199169962,3cyclictest50850irq/136-enp4s0-10:46:233
199169962,3cyclictest23758-21cat11:10:213
199169962,3cyclictest22924-21ls08:25:163
199169962,3cyclictest22638-21cat09:35:163
199169962,3cyclictest13604-21diskstats09:30:153
199169962,3cyclictest11374-21expr08:00:143
199169962,3cyclictest10662-21expr11:40:143
199169962,1cyclictest0-21swapper/312:21:043
199169962,1cyclictest0-21swapper/309:40:413
199169962,1cyclictest0-21swapper/309:28:483
199169962,1cyclictest0-21swapper/309:21:453
199169962,1cyclictest0-21swapper/309:15:113
199169961,4cyclictest27419-21ssh10:35:123
199169961,4cyclictest24743-21sshd10:14:123
199169961,3cyclictest275-21systemd-journal10:17:433
199169961,3cyclictest275-21systemd-journal09:13:593
199169960,6cyclictest0-21swapper/311:16:303
199169960,5cyclictest21584-21taskset08:21:043
199169960,0cyclictest0-21swapper/309:46:313
199169960,0cyclictest0-21swapper/307:10:023
199169960,0cyclictest0-21swapper/307:10:023
199129966,0cyclictest0-21swapper/210:22:232
199129966,0cyclictest0-21swapper/209:56:312
199129965,1cyclictest28-21ksoftirqd/211:34:592
199129963,2cyclictest8990-21ssh11:57:312
199129963,2cyclictest7495-21ssh11:20:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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