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2026-05-19 - 19:04
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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 May 19, 2026 12:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
202532291266,17sleep20-21swapper/207:07:482
184742281249,21sleep10-21swapper/107:05:101
203722275245,20sleep00-21swapper/007:09:030
201982266213,17sleep30-21swapper/307:07:043
275692610,0sleep10-21swapper/112:35:211
92012600,0sleep00-21swapper/010:26:310
244022600,0sleep10-21swapper/109:18:001
24422590,0sleep10-21swapper/110:03:371
44482580,0sleep30-21swapper/308:55:163
144552580,0sleep20-21swapper/211:09:212
107862570,0sleep30-21swapper/311:45:343
299612550,0sleep10-21swapper/109:20:521
279682550,0sleep10-21swapper/107:25:011
109542550,0sleep10-21swapper/109:29:531
326992200,0sleep30-21swapper/311:59:473
176332180,0sleep20-21swapper/209:14:082
20112160,0sleep20-21swapper/211:01:082
166242160,0sleep30-21swapper/311:30:113
7612140,0sleep20-21swapper/207:35:142
283012140,0sleep20-21swapper/207:25:142
167912140,1sleep016792-21unixbench_multi10:50:210
30982120,0sleep10-21swapper/112:20:201
254422120,0sleep20-21swapper/210:55:362
202112100,0sleep20-21swapper/212:30:462
205629994,3cyclictest275-21systemd-journal12:08:103
205499993,3cyclictest13638-21munin-run08:05:010
20034290,0sleep30-21swapper/312:11:013
7002280,0sleep30-21swapper/312:23:183
29167280,0sleep30-21swapper/310:58:293
205629984,3cyclictest275-21systemd-journal07:49:553
205579983,1cyclictest0-21swapper/210:15:192
205579983,1cyclictest0-21swapper/210:15:192
205579980,7cyclictest13675-21diskstats10:10:122
205499984,3cyclictest24562-21ntpq07:15:170
10817280,0sleep30-21swapper/309:29:473
520270,1sleep10-21swapper/107:35:141
21615270,0sleep00-21swapper/009:35:210
205629975,2cyclictest34-21ksoftirqd/310:25:003
205629973,3cyclictest275-21systemd-journal09:45:263
205629973,1cyclictest0-21swapper/311:28:463
205629973,1cyclictest0-21swapper/310:17:333
205629973,1cyclictest0-21swapper/310:17:333
205629970,7cyclictest395-21ssh09:23:083
205579974,2cyclictest28761-21head09:40:132
205579974,2cyclictest17367-21df11:50:122
205579972,3cyclictest8273-21munin-run09:05:002
205579972,3cyclictest275-21systemd-journal07:25:012
205579971,3cyclictest11408-21munin-run08:00:012
205579970,7cyclictest0-21swapper/209:20:012
205539976,1cyclictest19856-21apt-get09:35:111
205539973,3cyclictest275-21systemd-journal10:33:481
205539973,3cyclictest10497-21diskmemload11:27:341
205539971,3cyclictest29519-21grep08:40:011
205499974,2cyclictest16944-21sshd09:13:360
205499973,3cyclictest658-21snmpd08:48:390
205499973,3cyclictest560-21gdbus09:45:010
205499973,3cyclictest275-21systemd-journal09:03:350
205499973,2cyclictest275-21systemd-journal12:34:090
205499973,1cyclictest0-21swapper/010:13:390
205499973,1cyclictest0-21swapper/009:33:420
205499971,3cyclictest9224-21awk12:25:010
205499970,7cyclictest4612-21ssh11:03:100
19283270,0chrt0-21swapper/012:10:260
17189270,0sleep00-21swapper/011:50:110
205629966,0cyclictest0-21swapper/311:19:203
205629965,1cyclictest331rcuc/308:35:013
205629964,1cyclictest9192-21basename07:55:003
205629963,2cyclictest8088-21fschecks_time11:05:153
205629963,2cyclictest658-21snmpd10:07:153
205629963,2cyclictest27822-21cron07:25:013
205629963,2cyclictest23203-21ssh09:36:343
205629963,2cyclictest21096-21tune2fs09:55:153
205629963,2cyclictest20821-21cpuspeed07:10:133
205629963,2cyclictest20208-11brltty11:51:293
205629963,2cyclictest18307-21sh10:51:283
205629963,2cyclictest17888-21sh10:12:343
205629963,2cyclictest1314-21awk11:20:193
205629963,2cyclictest1250-21sh11:00:333
205629962,3cyclictest913-21expr11:40:133
205629962,3cyclictest658-21snmpd12:15:353
205629962,3cyclictest658-21snmpd10:35:253
205629962,3cyclictest658-21snmpd09:42:593
205629962,3cyclictest658-21snmpd08:54:063
205629962,3cyclictest658-21snmpd08:47:303
205629962,3cyclictest658-21snmpd08:22:533
205629962,3cyclictest658-21snmpd07:39:463
205629962,3cyclictest658-21snmpd07:31:223
205629962,3cyclictest658-21snmpd07:16:193
205629962,3cyclictest5713-21gdbus10:25:023
205629962,3cyclictest504-21dbus-daemon08:44:593
205629962,3cyclictest20358-21ntpq09:15:183
205629962,2cyclictest11105-21cat12:25:183
205629962,1cyclictest0-21swapper/309:50:193
205629961,4cyclictest31348-21rm12:38:013
205629960,6cyclictest0-21swapper/311:10:043
205629960,6cyclictest0-21swapper/309:30:133
205629960,5cyclictest6690-21diskstats09:00:153
205629960,3cyclictest30151-21gunzip10:00:183
205579966,0cyclictest0-21swapper/210:49:172
205579964,1cyclictest28424-21awk10:00:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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