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2026-04-10 - 07:12
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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 Fri Apr 10, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
745013050,0irq/46-4a10000028332-1kworker/u3:019:01:400
301989910771,0cyclictest30552-21sshd20:38:560
301989910671,0cyclictest26368-21/usr/sbin/munin20:26:230
301989910670,0cyclictest24924-21sendmail_mailst21:56:390
301989910368,0cyclictest16595-21uptime19:56:440
301989910367,0cyclictest25026-21/usr/sbin/munin23:31:390
301989910366,0cyclictest30804-21pluginstate23:50:450
301989910366,0cyclictest19293-21tune2fs20:06:140
301989910279,0cyclictest19581-21memory23:16:280
301989910177,0cyclictest7202-21df21:06:030
301989910176,0cyclictest9151-21fw_conntrack19:36:140
301989910168,0cyclictest3223-21chrt20:54:050
301989910079,0cyclictest9193-21fw_conntrack00:21:170
301989910079,0cyclictest26266-21fw_forwarded_lo23:36:170
301989910078,0cyclictest5515-21df00:11:030
301989910076,0cyclictest18304-21users20:01:460
301989910075,0cyclictest510-21entropy23:56:080
301989910072,0cyclictest9223-21irqstats21:11:230
301989910067,0cyclictest32614-21/usr/sbin/munin20:46:460
301989910067,0cyclictest17141-21sendmail-msp21:35:460
301989910066,0cyclictest460-21snmpd23:44:200
30198999978,0cyclictest31572-21ntp_kernel_err23:51:280
30198999978,0cyclictest14871-21users19:51:430
30198999978,0cyclictest14302-21fw_forwarded_lo23:01:180
30198999977,0cyclictest3805-21df00:06:010
30198999976,0cyclictest32426-21users19:11:040
30198999976,0cyclictest31150-21runrttasks22:16:020
30198999976,0cyclictest29852-21ntp_kernel_err22:11:300
30198999976,0cyclictest27662-21/usr/sbin/munin22:05:590
30198999975,0cyclictest14278-21fw_conntrack21:26:160
30198999969,0cyclictest4717-21runrttasks22:32:110
30198999965,0cyclictest16708-21chrt23:07:300
30198999963,0cyclictest5220-21date19:25:470
30198999878,0cyclictest20944-21df_inode20:11:060
30198999877,0cyclictest21182-21irqstats21:46:200
30198999877,0cyclictest13075-21timerwakeupswit19:46:390
30198999877,0cyclictest10717-21df_inode22:51:050
30198999876,0cyclictest2090-21df22:26:020
30198999875,0cyclictest8335-21runrttasks00:18:380
30198999875,0cyclictest5744-21fw_forwarded_lo21:01:150
30198999875,0cyclictest24391-21diskstats20:21:070
30198999875,0cyclictest20992-21diskstats23:21:080
30198999875,0cyclictest13194-21users21:21:450
30198999873,0cyclictest26739-21threads22:01:400
30198999864,0cyclictest1849-21ls19:15:480
30198999776,0cyclictest11090-21ntpq21:16:310
30198999775,0cyclictest10958-21irqstats00:26:210
30198999774,0cyclictest7589-21memory19:31:280
30198999773,0cyclictest486-21diskstats22:21:080
30198999773,0cyclictest19418-21fw_forwarded_lo21:41:160
30198999772,0cyclictest23434-21users21:51:460
30198999771,0cyclictest22885-21/usr/sbin/munin23:26:180
30198999760,0cyclictest6528-21seq19:28:120
30198999676,0cyclictest3798-21df20:56:010
30198999676,0cyclictest31440-21/usr/sbin/munin20:41:200
30198999675,0cyclictest7624-21memory22:41:290
30198999675,0cyclictest30616-21diskstats19:06:080
30198999675,0cyclictest13725-21munin-run23:00:440
30198999674,0cyclictest17895-21ntp_kernel_err23:11:300
30198999673,0cyclictest5912-21memory22:36:270
30198999673,0cyclictest17469-21df21:36:010
30198999667,0cyclictest13692-21cron00:35:420
30198999575,0cyclictest9156-21fw_conntrack22:46:140
30198999575,0cyclictest10866-21fw_forwarded_lo19:41:160
30198999574,0cyclictest23060-21ntp_offset20:16:310
30198999569,0cyclictest27545-21sshd20:30:550
30198999471,0cyclictest2113-21df00:01:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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