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2022-05-27 - 02:29

ARM TI AM3354 @800 MHz, Linux 5.10.47-rt46 (Profile)

Latency plot of system in rack #4, slot #2
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l50000000 -m -n -a0 -t1 -p99 -i400 -h400 -q
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 100 highest latencies:
System rack4slot2.osadl.org (updated Fri May 27, 2022 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74501920,0irq/46-4a1000007773-21runrttasks18:55:390
83349913054,0cyclictest0-21swapper00:26:410
8334999162,0cyclictest0-21swapper21:27:340
8334999052,0cyclictest0-21swapper22:50:070
8334998856,0cyclictest0-21swapper21:50:370
8334998548,0cyclictest0-21swapper19:00:330
8334998452,0cyclictest0-21swapper23:42:180
8334998358,0cyclictest0-21swapper20:00:120
8334998357,0cyclictest0-21swapper00:04:020
8334998348,0cyclictest0-21swapper20:50:150
8334998254,0cyclictest0-21swapper23:27:050
8334998253,0cyclictest0-21swapper19:37:030
7350820,0irq/45-4a10000010052-21df_inode23:35:290
8334998147,0cyclictest0-21swapper22:51:190
7350800,0irq/45-4a10000013610-21fw_forwarded_lo23:45:390
8334997955,0cyclictest0-21swapper21:16:550
8334997952,0cyclictest0-21swapper20:49:440
7450790,0irq/46-4a10000028887-21runrttasks21:12:190
7450790,0irq/46-4a10000016636-21snmpd00:09:140
159692790,0sleep015231-1kworker/u3:023:51:100
7450780,0irq/46-4a10000028039-1kworker/u3:623:10:430
7450780,0irq/46-4a10000023947-21ls20:45:040
7350780,0irq/45-4a1000009738-21aten_r4power_vo22:00:200
7350780,0irq/45-4a1000006121-21copy21:50:070
7450770,0irq/46-4a1000009181-21runrttasks23:31:400
7450770,0irq/46-4a1000008574-21kworker/u2:719:10:310
7450770,0irq/46-4a10000030274-21wget23:00:180
7450770,0irq/46-4a10000013143-21wget22:10:190
7450770,0irq/46-4a10000011792-1kworker/u3:323:56:100
7350770,0irq/45-4a1000003765-21swap21:41:360
7350770,0irq/45-4a10000016794-21sed22:20:260
7450760,0irq/46-4a1000009930-21seq19:06:490
7450760,0irq/46-4a1000007223-1kworker/u3:422:15:430
7450760,0irq/46-4a1000006058-21runrttasks23:24:230
7450760,0irq/46-4a10000025868-21chrt20:58:370
7450760,0irq/46-4a10000024480-1kworker/u3:122:55:330
7450760,0irq/46-4a10000019606-21runrttasks22:28:480
7450760,0irq/46-4a10000015641-1kworker/u3:119:58:200
7450760,0irq/46-4a10000013192-1kworker/u3:019:40:570
7450760,0irq/46-4a10000013192-1kworker/u3:019:30:140
7450760,0irq/46-4a1000001088-21chrt21:30:350
7350760,0irq/45-4a10000012985-21wc22:10:060
272592760,0sleep026782-1kworker/u3:121:05:480
90972750,0sleep031766-1kworker/u3:321:56:500
8334997553,0cyclictest0-21swapper22:30:100
7450750,0irq/46-4a1000009980-1kworker/u3:119:15:180
7450750,0irq/46-4a10000028477-21kworker/u2:021:25:110
7450750,0irq/46-4a10000028039-1kworker/u3:623:15:390
7450750,0irq/46-4a10000026529-21runrttasks21:03:110
7450750,0irq/46-4a10000024658-21runrttasks22:43:070
7450750,0irq/46-4a1000002300-21runrttasks21:37:120
7450750,0irq/46-4a10000021609-21latency_hist22:35:060
7450750,0irq/46-4a10000021324-1kworker/u3:020:35:110
7450750,0irq/46-4a10000021324-1kworker/u3:020:34:150
7450750,0irq/46-4a10000021241-21runrttasks20:25:460
7450750,0irq/46-4a10000020881-21chrt20:23:460
7450750,0irq/46-4a10000016636-21snmpd19:47:290
7350750,0irq/45-4a10000022220-21idleruntime00:10:400
192192750,0sleep018505-1kworker/u3:020:11:390
119572750,0sleep09980-1kworker/u3:119:20:440
8334997444,0cyclictest25257-21/usr/sbin/munin00:20:200
7450740,0irq/46-4a10000018505-1kworker/u3:020:17:400
7450740,0irq/46-4a10000018452-21runrttasks20:06:250
7450740,0irq/46-4a10000012610-21runrttasks19:25:150
164202740,0chrt15641-1kworker/u3:119:52:130
7450730,0irq/46-4a10000030024-1kworker/u3:223:05:160
7450730,0irq/46-4a10000023584-21chrt00:15:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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