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2026-04-28 - 05:23
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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 Apr 28, 2026 00:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
305022282251,21sleep20-21swapper/219:09:332
304652270241,19sleep00-21swapper/019:09:030
303852265233,22sleep30-21swapper/319:08:013
301742265237,17sleep10-21swapper/119:05:341
300072620,0sleep30-21swapper/322:13:563
108102590,0sleep30-21swapper/300:38:433
39942570,1sleep03992-21ssh22:17:300
30122570,0sleep10-21swapper/100:34:051
77922560,1sleep00-21swapper/022:00:160
320932550,0sleep10-21swapper/123:33:351
141112510,0sleep10-21swapper/100:20:221
186992170,0sleep00-21swapper/021:27:520
300532150,0sleep30-21swapper/323:51:313
180192150,0sleep10-21swapper/122:25:201
271402140,0sleep20-21swapper/222:50:352
3064299108,1cyclictest12-21ksoftirqd/023:59:590
141682100,0sleep20-21swapper/222:23:572
10117290,0sleep20-21swapper/200:18:442
306569985,2cyclictest34-21ksoftirqd/320:40:013
306569983,3cyclictest275-21systemd-journal23:32:273
306519980,2cyclictest14900-21hddtemp_smartct20:55:142
306479987,1cyclictest22-21ksoftirqd/122:15:011
306429987,1cyclictest12-21ksoftirqd/023:59:590
306429986,1cyclictest7663-21ssh22:59:130
22750280,0sleep30-21swapper/323:47:133
13114280,0sleep10-21swapper/123:02:021
4454270,0sleep20-21swapper/221:19:402
4169270,0sleep10-21swapper/120:30:191
306569974,2cyclictest504-21dbus-daemon22:41:313
306569974,2cyclictest34-21ksoftirqd/300:00:003
306569974,2cyclictest275-21systemd-journal22:58:453
306569973,3cyclictest658-21snmpd20:28:413
306569973,3cyclictest31442-21cut21:35:183
306569973,3cyclictest275-21systemd-journal21:27:293
306569973,3cyclictest16924-21cron19:50:003
306569973,1cyclictest0-21swapper/322:00:153
306569973,1cyclictest0-21swapper/300:13:013
306569972,4cyclictest7152-21ntpq21:40:173
306519976,1cyclictest0-21swapper/223:17:532
306519975,2cyclictest28-21ksoftirqd/200:00:002
306519975,1cyclictest28-21ksoftirqd/200:00:002
306519974,2cyclictest658-21snmpd22:39:012
306519973,3cyclictest658-21snmpd23:30:412
306519970,4cyclictest5506-21munin-run19:25:012
306479973,3cyclictest10765-21sed19:35:151
306429976,1cyclictest12-21ksoftirqd/023:20:010
306429976,1cyclictest12-21ksoftirqd/019:30:010
306429975,2cyclictest12-21ksoftirqd/020:55:010
306429975,1cyclictest12-21ksoftirqd/022:40:010
306429973,1cyclictest0-21swapper/022:25:090
306429972,1cyclictest0-21swapper/021:15:180
22263270,0sleep10-21swapper/121:30:131
20876270,6sleep220896-21ssh22:47:042
14872270,0sleep10-21swapper/121:25:161
306569966,0cyclictest0-21swapper/322:18:153
306569964,1cyclictest275-21systemd-journal21:21:173
306569963,2cyclictest658-21snmpd21:55:063
306569963,2cyclictest658-21snmpd19:18:183
306569963,2cyclictest504-21dbus-daemon00:10:003
306569963,2cyclictest501-21in:imuxsock23:35:233
306569963,2cyclictest30864-21sh00:30:343
306569963,2cyclictest27554-21chrt23:10:263
306569963,2cyclictest25364-21ssh21:31:373
306569963,2cyclictest23681-21cat21:50:163
306569963,2cyclictest22955-21ssh23:08:163
306569963,2cyclictest21561-21ssh22:47:353
306569963,2cyclictest2131-21awk22:35:183
306569963,2cyclictest19262-21systemctl23:25:193
306569963,2cyclictest12716-21sh23:21:223
306569963,2cyclictest10801-21ntpq20:45:183
306569962,3cyclictest658-21snmpd22:08:573
306569962,3cyclictest658-21snmpd21:47:273
306569962,3cyclictest658-21snmpd21:08:403
306569962,3cyclictest658-21snmpd20:32:053
306569962,3cyclictest658-21snmpd20:06:503
306569962,3cyclictest658-21snmpd20:04:083
306569962,3cyclictest658-21snmpd19:50:143
306569962,3cyclictest658-21snmpd19:26:423
306569962,3cyclictest658-21snmpd00:28:423
306569962,3cyclictest658-21snmpd00:17:093
306569962,3cyclictest25336-21cat22:30:153
306569962,3cyclictest25333-21cat22:50:143
306569962,3cyclictest20061-21cat19:55:153
306569962,3cyclictest17747-21smartctl21:00:163
306569962,3cyclictest1657-21sort23:15:143
306569962,3cyclictest15251-21ntpq20:55:173
306569962,3cyclictest12534-21tune2fs20:50:123
306569962,3cyclictest10702-21awk23:40:123
306569962,2cyclictest275-21systemd-journal23:56:383
306569962,1cyclictest0-21swapper/323:02:513
306569962,1cyclictest0-21swapper/322:25:513
306569962,1cyclictest0-21swapper/300:23:343
306569960,3cyclictest31204-21sh21:15:213
306569960,0cyclictest0-21swapper/322:20:173
306519966,0cyclictest0-21swapper/223:47:442
306519964,1cyclictest28-21ksoftirqd/220:15:002
306519963,2cyclictest658-21snmpd20:44:152
306519963,2cyclictest658-21snmpd20:08:552
306519963,2cyclictest658-21snmpd00:06:512
306519963,2cyclictest504-21dbus-daemon21:22:332
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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