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2026-03-22 - 03:56
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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 50 highest latencies:
System rack4slot2.osadl.org (updated Sun Mar 22, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74501920,0irq/46-4a1000001961-21runrttasks19:05:360
21179912635,0cyclictest27729-21timerwakeupswit23:27:250
21179912538,0cyclictest6984-21/usr/sbin/munin19:17:160
21179912534,0cyclictest8569-21sshd00:07:100
21179912534,0cyclictest4886-21fschecks_count19:12:100
21179912342,0cyclictest24825-21runrttasks20:11:030
21179912335,0cyclictest15133-21sort00:26:520
21179912333,0cyclictest25900-21grep20:12:210
21179912332,0cyclictest10672-21ls00:12:250
21179912331,0cyclictest8820-21cat20:57:210
21179912330,0cyclictest28913-21seq20:21:590
21179912253,0cyclictest0-21swapper23:11:510
21179912236,0cyclictest27035-21df_abs20:16:450
21179912232,0cyclictest9961-21/usr/sbin/munin19:26:500
21179912230,0cyclictest14854-21/usr/sbin/munin19:41:380
21179912212,0cyclictest23871-21irqstats23:17:030
21179912137,0cyclictest15051-21df_abs21:16:470
21179912132,0cyclictest5670-21runrttasks20:47:580
21179912132,0cyclictest2729-21sendmail-msp22:16:290
21179912131,0cyclictest2822-21/usr/sbin/munin19:07:070
21179912131,0cyclictest19867-21latency_hist19:56:310
21179912131,0cyclictest13384-21/usr/sbin/munin19:36:490
21179912130,0cyclictest29968-21chrt22:01:020
21179912129,0cyclictest9985-21entropy22:36:500
21179912128,0cyclictest9201-21runrttasks19:23:520
21179912128,0cyclictest1821-21/usr/sbin/munin20:37:130
21179912128,0cyclictest13589-21irqstats21:12:030
21179912125,0cyclictest24729-1kworker/u3:023:22:160
21179912045,0cyclictest7350irq/45-4a10000022:51:390
21179912033,0cyclictest8167-21df22:31:460
21179912028,0cyclictest22327-21awk20:02:180
21179912027,0cyclictest4277-21runrttasks20:45:280
21179912027,0cyclictest30863-21chrt20:27:160
21179912010,0cyclictest1224-21/usr/sbin/munin23:46:420
21179911939,0cyclictest0-21swapper19:53:270
21179911931,0cyclictest14087-21grep00:22:240
21179911930,0cyclictest17974-21runrttasks00:35:420
21179911927,0cyclictest16806-21fschecks_count19:46:510
21179911926,0cyclictest31949-21aten_r4power_vo22:06:400
21179911835,0cyclictest4588-21cut23:56:360
21179911829,0cyclictest12326-21/usr/sbin/munin00:17:240
21179911829,0cyclictest11694-21forks22:41:490
21179911827,0cyclictest21374-21runrttasks21:35:420
21179911827,0cyclictest18096-21awk23:01:270
21179911826,0cyclictest20706-21chrt23:07:170
21179911810,0cyclictest6848-21memory20:52:120
21179911810,0cyclictest31172-21timerwakeupswit23:37:240
21179911810,0cyclictest26500-21seq21:50:420
21179911749,0cyclictest12-21ksoftirqd/022:48:100
21179911741,0cyclictest0-21swapper22:17:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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