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2026-03-19 - 07:05
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 50 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 highest latencies:
System rack4slot2.osadl.org (updated Thu Mar 19, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16037213060,0sleep015866-1kworker/u3:019:06:320
160889912532,0cyclictest15685-21seq20:37:130
160889912528,0cyclictest17116-21runrttasks19:07:270
160889912435,0cyclictest1924-21irqstats23:07:090
160889912434,0cyclictest20660-21fw_conntrack00:02:020
160889912338,0cyclictest15523-21/usr/sbin/munin23:47:050
160889912139,0cyclictest12814-21sshd20:28:090
160889912132,0cyclictest18258-21ls19:11:530
160889912131,0cyclictest25537-21chrt21:06:500
160889912131,0cyclictest24140-21sshd21:02:090
160889912131,0cyclictest22400-21seq22:32:100
160889912131,0cyclictest12896-21runrttasks23:38:480
160889912041,0cyclictest27243-21runrttasks21:11:490
160889912039,0cyclictest23885-21df_abs00:11:530
160889912039,0cyclictest0-21swapper23:22:380
160889912032,0cyclictest13463-21cut20:31:470
160889912030,0cyclictest7860-21runrttasks21:49:380
160889912030,0cyclictest6237-21runrttasks21:45:150
160889912028,0cyclictest31063-21memory19:47:160
160889912028,0cyclictest26327-21/usr/sbin/munin19:32:300
160889912011,0cyclictest29083-21forks19:41:580
160889911932,0cyclictest3654-21irqstats20:02:090
160889911931,0cyclictest22776-21sendmail_mailtr20:57:270
160889911930,0cyclictest9929-21cut23:31:380
160889911930,0cyclictest1310-21date23:06:350
160889911929,0cyclictest19767-21seq22:24:040
160889911927,0cyclictest20692-21sshd20:52:080
160889911926,0cyclictest11424-21seq20:25:450
160889911837,0cyclictest0-21swapper21:41:320
160889911833,0cyclictest29229-21/usr/sbin/munin21:17:080
160889911832,0cyclictest3697-21cat23:12:120
160889911832,0cyclictest20160-21ls22:26:370
160889911830,0cyclictest460-21snmpd23:57:420
160889911828,0cyclictest20664-21fw_conntrack19:17:020
160889911813,0cyclictest9248-21/usr/sbin/munin21:52:320
160889911736,0cyclictest22054-21cpu00:06:470
160889911734,0cyclictest15359-21df_inode22:11:520
160889911730,0cyclictest28438-21seq19:40:060
160889911730,0cyclictest17099-21/usr/sbin/munin22:16:540
160889911728,0cyclictest8655-21fschecks_time20:17:000
160889911728,0cyclictest30636-21cat21:21:480
160889911727,0cyclictest30018-21seq22:54:120
160889911630,0cyclictest31661-21runrttasks22:58:320
160889911630,0cyclictest26851-21seq22:46:110
160889911629,0cyclictest2594-21runrttasks19:58:190
160889911627,0cyclictest28841-21aten_r4power_vo00:26:450
160889911612,0cyclictest32691-21irqstats19:52:110
160889911548,0cyclictest7350irq/45-4a10000023:42:340
160889911530,0cyclictest2895-21seq21:35:580
160889911530,0cyclictest22537-21memory19:22:170
160889911529,0cyclictest32069-21sendmail-msp00:36:350
160889911529,0cyclictest28212-21runrttasks00:23:110
160889911529,0cyclictest19822-21chrt20:49:380
160889911528,0cyclictest5818-21grep23:17:300
160889911523,0cyclictest7586-21sed20:12:320
160889911433,0cyclictest10258-21df_inode21:56:540
160889911430,0cyclictest5149-21/usr/sbin/munin20:06:580
160889911429,0cyclictest9392-21seq23:28:090
160889911427,0cyclictest17287-21if_eth023:52:090
160889911411,0cyclictest11665-21/usr/sbin/munin22:01:470
160889911327,0cyclictest24697-21/usr/sbin/munin19:27:340
160889911310,0cyclictest23851-21df_abs22:36:520
160889911234,0cyclictest25590-21df_abs00:16:510
160889911230,0cyclictest16796-21aten_r4power_cu20:41:420
160889911222,0cyclictest14858-21runrttasks22:11:040
160889911212,0cyclictest421-21open_files21:27:230
160889911013,0cyclictest27554-21irqstats22:47:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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