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2026-06-08 - 02:52
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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 Mon Jun 08, 2026 00:44:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74501960,0irq/46-4a10000024654-21runrttasks19:05:450
7450950,0irq/46-4a10000017868-21users21:56:110
7350950,0irq/45-4a1000007601-21sed00:35:550
1537029510,0sleep015389-21df_inode20:15:210
7450940,0irq/46-4a10000029349-21ls20:55:460
7450940,0irq/46-4a10000016790-21/usr/sbin/munin23:30:430
303562948,0sleep030370-21sed00:09:590
7450930,0irq/46-4a1000009425-21runrttasks23:06:460
7450930,0irq/46-4a1000004859-21sshd22:55:100
7450930,0irq/46-4a10000031154-21ntpdc19:25:540
7450930,0irq/46-4a10000030699-21df21:00:170
7450930,0irq/46-4a10000027350-21df_inode22:25:200
7450930,0irq/46-4a1000002160-1kworker/u3:200:25:490
7450930,0irq/46-4a10000014972-21munin-run20:15:000
7450930,0irq/46-4a10000013280-21ls20:10:030
7450930,0irq/46-4a10000012011-21/usr/sbin/munin23:15:240
7450920,0irq/46-4a1000009812-21cron21:34:590
7450920,0irq/46-4a1000004200-21unixbench_singl21:16:150
7450920,0irq/46-4a10000028119-21sshd20:51:090
7450920,0irq/46-4a10000025643-21diskstats23:55:220
7450920,0irq/46-4a10000022497-21meminfo22:10:380
7450920,0irq/46-4a10000018995-21fw_forwarded_lo20:25:390
7450920,0irq/46-4a10000017455-21chrt20:20:570
7450910,0irq/46-4a1000005329-21fw_conntrack21:20:380
7450910,0irq/46-4a1000005322-21/usr/sbin/munin00:30:320
7450910,0irq/46-4a100000452-21snmpd23:26:000
7450910,0irq/46-4a100000452-21snmpd20:34:220
7450910,0irq/46-4a10000030731-21df_abs22:35:210
7450910,0irq/46-4a10000030332-21pluginstate22:35:000
7450910,0irq/46-4a10000029079-21/usr/sbin/munin19:20:210
7450910,0irq/46-4a10000027282-21cron19:14:590
7450910,0irq/46-4a10000025797-21runrttasks22:20:290
7450910,0irq/46-4a10000024390-21/usr/sbin/munin20:40:580
7450910,0irq/46-4a10000020078-21sendmail23:39:580
7450910,0irq/46-4a10000013384-21/usr/sbin/munin21:45:490
7450910,0irq/46-4a10000011601-21wc21:40:040
7450910,0irq/46-4a10000010315-21fschecks_count20:00:280
7450900,0irq/46-4a1000009203-21/usr/sbin/munin19:55:590
7450900,0irq/46-4a1000006883-21diskstats21:25:280
7450900,0irq/46-4a1000003690-21runrttasks19:40:440
7450900,0irq/46-4a1000003520-21tune2fs22:50:260
7450900,0irq/46-4a10000032483-21diskstats19:30:220
7450900,0irq/46-4a10000030591-21grep00:10:130
7450900,0irq/46-4a10000024922-1kworker/u3:223:54:230
7450900,0irq/46-4a10000022981-21/usr/sbin/munin23:45:550
7450900,0irq/46-4a10000021806-21cat22:10:000
7450900,0irq/46-4a10000021743-1kworker/u3:020:39:510
7450900,0irq/46-4a10000015629-21irqstats21:50:500
7450900,0irq/46-4a10000014339-1kworker/u3:123:22:460
7450890,0irq/46-4a1000009940-21chrt23:10:030
7450890,0irq/46-4a1000007008-21/usr/sbin/munin23:00:310
7450890,0irq/46-4a1000006859-21diskstats19:50:220
7450890,0irq/46-4a100000661-21/usr/sbin/munin00:15:550
7450890,0irq/46-4a1000006449-21wc19:50:010
7450890,0irq/46-4a10000027065-21sshd00:00:100
7450890,0irq/46-4a10000026878-1kworker/u3:119:17:040
7450890,0irq/46-4a10000025367-21seq20:45:090
7450890,0irq/46-4a10000023794-21cstates22:15:130
7450890,0irq/46-4a10000019389-21swap22:00:520
7450890,0irq/46-4a1000001304-21awk22:44:590
7450880,0irq/46-4a10000032580-21fschecks_time21:05:280
7450880,0irq/46-4a10000020791-21latency23:40:390
7450880,0irq/46-4a10000011709-21sshd21:40:110
7450870,0irq/46-4a1000001630-21df22:45:150
7450870,0irq/46-4a1000001338-21sendmail-msp00:20:040
169528710,0sleep01704-21df_abs19:35:190
7350860,0irq/45-4a1000001875-21fschecks_time21:10:360
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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