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2026-06-13 - 05:38
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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 792 highest latencies:
System rack4slot2.osadl.org (updated Sat Jun 13, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74501940,0irq/46-4a10000032383-21runrttasks19:07:500
28836210014,0sleep028868-21meminfo23:40:270
1705529817,0sleep017106-21sendmail_mailqu21:30:380
7450970,0irq/46-4a10000011486-21runrttasks19:40:100
2699429711,0sleep026996-21fw_forwarded_lo23:35:170
7450930,0irq/46-4a100000452-21snmpd23:20:560
7450920,0irq/46-4a1000007691-21sed22:39:500
7450920,0irq/46-4a100000452-21snmpd00:00:580
7450920,0irq/46-4a10000028080-21runrttasks20:29:320
7450920,0irq/46-4a10000015113-21/usr/sbin/munin00:35:210
7450910,0irq/46-4a100000993-21aten_r4power_po20:44:570
7450910,0irq/46-4a1000008595-21mailstats19:30:390
7450910,0irq/46-4a10000019640-21grep21:39:510
7450900,0irq/46-4a100000809-21ls20:44:470
7450900,0irq/46-4a1000006050-21/usr/sbin/munin21:00:130
7450900,0irq/46-4a1000004971-21missed_timers20:55:300
7450900,0irq/46-4a1000004015-21runrttasks22:28:130
7450900,0irq/46-4a10000024681-21cron21:54:460
7450900,0irq/46-4a10000018937-21threads23:10:400
7450900,0irq/46-4a10000015107-21chrt19:50:230
7450900,0irq/46-4a100000141422sleep019:47:170
7450900,0irq/46-4a10000013556-21ntpdc22:55:330
7450900,0irq/46-4a10000011163-21/usr/sbin/munin21:15:360
7450900,0irq/46-4a10000010312-21/usr/sbin/munin21:10:400
7450890,0irq/46-4a1000009777-21diskstats22:45:080
7450890,0irq/46-4a1000009541-21aten_r4power_vo19:34:580
7450890,0irq/46-4a1000007053-21sed00:10:470
7450890,0irq/46-4a100000611-21seq23:53:280
7450890,0irq/46-4a1000005674-21seq19:22:510
7450890,0irq/46-4a1000004570-21df00:05:060
7450890,0irq/46-4a10000031932-21df_abs22:15:030
7450890,0irq/46-4a10000030337-21fschecks_time22:10:140
7450890,0irq/46-4a10000028444-21cstates22:05:020
7450890,0irq/46-4a10000025441-21meminfo23:30:280
7450890,0irq/46-4a1000002322-21seq23:58:290
7450890,0irq/46-4a10000016881-21/usr/sbin/munin19:55:250
7450890,0irq/46-4a10000014083-21runrttasks00:31:500
7450890,0irq/46-4a10000010465-21grep00:20:450
7450880,0irq/46-4a1000006061-21hostname19:24:560
7450880,0irq/46-4a1000004545-21df22:30:010
7450880,0irq/46-4a10000030494-21sed20:35:230
7450880,0irq/46-4a10000029753-21sshd20:34:210
7450880,0irq/46-4a10000025991-21seq21:56:270
7450880,0irq/46-4a10000022281-21sendmail_mailtr21:45:380
7450880,0irq/46-4a10000021866-21/usr/sbin/munin20:10:180
7450880,0irq/46-4a10000020381-21ntpq23:15:310
7450880,0irq/46-4a10000019926-21sh20:05:040
7450880,0irq/46-4a10000019610-21sendmail-msp21:40:020
7450880,0irq/46-4a10000017278-21timerwakeupswit23:05:430
7450880,0irq/46-4a10000014483-21sendmail-msp22:59:590
7450870,0irq/46-4a100000921-21runrttasks19:10:260
7450870,0irq/46-4a1000009187-21seq00:18:400
7450870,0irq/46-4a1000008103-21grep21:05:120
7450870,0irq/46-4a10000031210-21seq23:47:050
7450870,0irq/46-4a10000027088-21irqstats22:00:280
7450870,0irq/46-4a10000025667-21grep20:20:390
7450870,0irq/46-4a10000024261-21runrttasks20:16:200
7450870,0irq/46-4a1000001267-21fschecks_count22:20:130
7450870,0irq/46-4a10000011612-21fw_conntrack22:50:150
7450860,0irq/46-4a100000452-21snmpd00:26:090
7450860,0irq/46-4a1000002704-21aten_r4power_en19:15:160
7450860,0irq/46-4a10000023880-21runrttasks23:25:370
7450860,0irq/46-4a10000019122-21seq20:01:060
7450860,0irq/46-4a10000012776-21sendmail-msp21:20:070
7450850,0irq/46-4a10000015415-21find21:25:390
28082859,0sleep02828-21df20:50:000
7450840,0irq/46-4a1000009072-21runrttasks22:42:390
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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