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2025-06-28 - 23:31
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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 20 highest latencies:
System rack5slot7.osadl.org (updated Sat Jun 28, 2025 12:44:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6620224002208,141sleep00-21swapper05:46:160
68639910425,69cyclictest0-21swapper10:37:110
68639910312,26cyclictest16169-21ls06:34:120
68639910220,22cyclictest14910-21irqstats10:29:260
68639910215,55cyclictest0-21swapper08:47:230
68639910213,27cyclictest3843-21grep08:09:550
68639910210,25cyclictest10750-21zcat06:04:110
68639910118,47cyclictest26726-21df_inode09:24:020
68639910114,65cyclictest20339-21ssh10:44:540
68639910113,25cyclictest17862-21/usr/sbin/munin08:54:440
68639910111,71cyclictest11189-21ls08:33:480
68639910033,20cyclictest5394-21grep08:14:520
68639910027,52cyclictest23612-21processes10:54:500
68639910015,45cyclictest6643-21/usr/sbin/munin08:19:270
68639910015,21cyclictest8566-21fw_conntrack10:09:100
68639910014,67cyclictest32581-21fw_conntrack07:59:090
68639910011,27cyclictest21995-21ssh09:08:500
6863999917,44cyclictest13158-21fw_conntrack06:18:490
6863999917,22cyclictest12529-21apt-get08:38:340
6863999916,44cyclictest23791-21memory09:14:270
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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