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2026-06-20 - 01:56
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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 highest latencies:
System rack4slot2.osadl.org (updated Sat Jun 20, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74501930,0irq/46-4a10000017691-21runrttasks19:08:140
17937999675,0cyclictest20368-21ntp_kernel_pll_19:15:210
17937999577,0cyclictest2159-21modprobe19:59:530
17937999559,0cyclictest22076-21unixbench_singl20:55:500
17937999271,0cyclictest26048-21runrttasks22:44:520
17937999268,0cyclictest24960-21sort21:05:260
17937999171,0cyclictest4407-21fschecks_time20:05:230
17937999170,0cyclictest12188-21runrttasks22:03:190
17937999075,0cyclictest24798-21/usr/sbin/munin19:30:150
17937999075,0cyclictest22053-21/usr/sbin/munin22:30:530
17937999071,0cyclictest13445-21switchtime22:05:470
17937999069,0cyclictest7202-21runrttasks23:24:350
17937999069,0cyclictest31920-21runrttasks19:50:330
17937999069,0cyclictest17657-21aten_r4power_en23:55:040
17937999068,0cyclictest438-21snmpd20:48:170
17937999067,0cyclictest30816-21runrttasks19:46:490
17937998971,0cyclictest5738-21aten_r4power_en21:45:030
17937998971,0cyclictest16026-21aten_r4power_po20:40:050
17937998970,0cyclictest9025-21latency_hist23:29:550
17937998967,0cyclictest8864-21runrttasks21:54:100
17937998967,0cyclictest28368-21runrttasks19:40:260
17937998953,0cyclictest21143-21grep19:20:040
17937998867,0cyclictest25544-21runrttasks00:16:010
17937998866,0cyclictest27358-21runrttasks19:36:340
17937998865,0cyclictest31415-21runrttasks23:00:060
17937998865,0cyclictest15649-21runrttasks23:48:570
17937998864,0cyclictest4405-21fw_forwarded_lo23:15:240
17937998853,0cyclictest29619-21/usr/sbin/munin21:20:070
17937998769,0cyclictest29944-21fschecks_count00:30:180
17937998768,0cyclictest15048-21sendmail_mailst22:10:450
17937998767,0cyclictest23862-21runrttasks22:36:030
17937998766,0cyclictest2659-21/usr/sbin/munin23:10:180
17937998765,0cyclictest3188-21runrttasks21:35:490
17937998764,0cyclictest3631-21runrttasks20:03:060
17937998764,0cyclictest22495-21runrttasks00:09:000
17937998762,0cyclictest31844-21sshd21:25:280
17937998762,0cyclictest2182-21grep23:09:550
17937998752,0cyclictest20765-21runrttasks00:03:470
17937998669,0cyclictest964-21fschecks_time21:30:180
17937998667,0cyclictest5598-21latency_hist21:44:550
17937998667,0cyclictest26555-21fschecks_count22:45:190
17937998667,0cyclictest26478-21df_inode21:10:120
17937998665,0cyclictest27567-21runrttasks00:23:280
17937998663,0cyclictest8058-21/usr/sbin/munin20:15:390
17937998663,0cyclictest24369-21idleruntime-cro21:04:530
17937998663,0cyclictest24277-21chrt19:29:140
17937998659,0cyclictest12806-21diskstats23:40:180
17937998654,0cyclictest9098-21/usr/sbin/munin21:55:400
17937998649,0cyclictest13615-21seq20:30:570
17937998564,0cyclictest7275-21munin-run20:14:550
17937998563,0cyclictest29150-21sshd22:52:280
17937998563,0cyclictest16234-21diskstats22:15:160
17937998562,0cyclictest12042-21runrttasks23:37:250
17937998562,0cyclictest11552-21/usr/sbin/munin20:25:420
17937998560,0cyclictest22863-21cpu00:10:070
17937998558,0cyclictest19977-21memory22:25:370
17937998557,0cyclictest0-21swapper22:23:570
17937998463,0cyclictest9740-21memory20:20:420
17937998361,0cyclictest31749-21fw_forwarded_lo00:35:250
17937998361,0cyclictest29579-21runrttasks22:54:580
17937998361,0cyclictest19872-21irqstats20:50:270
17937998361,0cyclictest16105-21seq23:50:080
17937998353,0cyclictest18424-21grep19:10:180
17937998263,0cyclictest27879-21runrttasks00:24:590
17937998259,0cyclictest14853-21ls20:35:390
17937998162,0cyclictest28495-21/usr/sbin/munin21:15:330
17937998157,0cyclictest7907-21irqstats23:25:300
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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