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2026-09-01 - 10:37
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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 all highest latencies:
System rack4slot2.osadl.org (updated Tue Sep 01, 2026 00:44:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73502330,0irq/45-4a10000029260-21kworker/0:019:05:050
7350920,0irq/45-4a10000026938-21seq19:59:590
7450880,0irq/46-4a1000005841-21wget22:09:150
7350860,0irq/45-4a100000346-21sshd22:40:150
7350860,0irq/45-4a10000031944-21runrttasks23:24:490
7350850,0irq/45-4a100000568-21sendmail-msp20:19:290
293772850,0sleep020783-1kworker/u3:121:42:460
256928514,0sleep02617-21df_abs21:59:300
7350840,0irq/45-4a10000023230-21fschecks_count19:49:270
309282846,0sleep029524-21sendmail-msp23:21:540
254822847,0sleep025504-21switchtime19:55:010
13192845,0sleep01325-21ntp_states21:54:530
8532998356,0cyclictest0-21swapper19:32:050
7450830,0irq/46-4a1000009082-21idleruntime-cro20:44:020
7450830,0irq/46-4a10000021048-21sendmail-msp21:19:160
7350830,0irq/45-4a10000029863-21seq21:44:180
7350830,0irq/45-4a10000021865-21/usr/sbin/munin19:44:570
7350830,0irq/45-4a10000014820-21/usr/sbin/munin20:59:490
7350830,0irq/45-4a10000014041-21seq19:22:340
179612830,0sleep015475-1kworker/u3:019:34:180
7450820,0irq/46-4a10000030090-21tune2fs20:09:300
7450820,0irq/46-4a10000027866-21sendmail-msp21:39:060
7350820,0irq/45-4a100000491-21runrttasks20:34:350
7350820,0irq/45-4a1000004308-21df_inode23:39:320
7350820,0irq/45-4a10000017200-21runrttasks21:05:450
7350820,0irq/45-4a10000011483-21memory22:24:530
7450810,0irq/46-4a1000003884-21sendmail-msp23:44:240
7450810,0irq/46-4a10000021048-21sendmail-msp21:24:160
7450810,0irq/46-4a10000016560-21sendmail-msp00:19:230
7450810,0irq/46-4a10000010744-21munin-run22:24:020
7350810,0irq/45-4a1000004855-21ps22:05:050
7350810,0irq/45-4a10000013431-21runrttasks20:54:550
107472810,0sleep08671-1kworker/u3:219:14:240
7450800,0irq/46-4a1000009925-21fgrep23:54:580
7450800,0irq/46-4a1000007392-21sendmail-msp20:44:300
7450800,0irq/46-4a100000568-21sendmail-msp20:19:090
7450800,0irq/46-4a100000454-21snmpd23:53:210
7450800,0irq/46-4a10000024724-21cpuspeed21:29:170
7450800,0irq/46-4a10000022692-21sendmail-msp22:59:280
7450800,0irq/46-4a10000022302-21chrt00:34:400
7450800,0irq/46-4a10000019718-21seq22:49:270
7450800,0irq/46-4a10000019375-21sendmail-msp19:39:140
7450800,0irq/46-4a10000015257-21seq00:14:250
7450800,0irq/46-4a10000010711-21sendmail-msp23:59:250
7350800,0irq/45-4a1000002702-21entropy20:24:290
114962800,0sleep05900-1kworker/u3:020:49:410
7450790,0irq/46-4a100000454-21snmpd00:13:290
7450790,0irq/46-4a10000032393-21grep21:50:020
7450790,0irq/46-4a10000028121-21wget20:04:150
7450790,0irq/46-4a10000025826-21seq23:07:020
7450790,0irq/46-4a10000016560-21sendmail-msp00:24:180
7450780,0irq/46-4a1000004037-1kworker/u3:122:14:260
7450780,0irq/46-4a10000027910-21/usr/sbin/munin23:14:410
7450780,0irq/46-4a1000002278-21/usr/sbin/munin23:34:280
7450780,0irq/46-4a10000018859-1kworker/u3:021:15:030
7450780,0irq/46-4a10000015874-21sendmail-msp22:44:370
7450780,0irq/46-4a10000015189-21rt-features19:25:050
7450780,0irq/46-4a10000013170-21/usr/sbin/munin22:29:450
7450780,0irq/46-4a1000001192-21ls23:29:460
7450780,0irq/46-4a10000010711-21sendmail-msp00:05:110
7450780,0irq/46-4a10000010596-1kworker/u3:100:30:270
7350780,0irq/45-4a100000179432chrt21:09:190
158112780,0chrt8942-1kworker/u3:022:38:530
7450770,0irq/46-4a1000008650-21aten_r4power_cu19:09:120
7450770,0irq/46-4a10000027274-21users23:10:040
7450760,0irq/46-4a1000004194-21egrep20:29:140
7450760,0irq/46-4a10000021576-21if_err_eth022:54:350
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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