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2022-07-03 - 07:54

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 all highest latencies:
System rack4slot2.osadl.org (updated Sun Jul 03, 2022 00:43:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9565210840,0sleep029906-1kworker/u3:318:54:460
10066999458,0cyclictest0-21swapper00:03:510
7450920,0irq/46-4a10000018775-21chrt20:59:070
141302920,0sleep09877-1kworker/u3:222:20:160
10066999258,0cyclictest0-21swapper22:13:560
226082918,0sleep022606-21memory21:10:180
10066999155,0cyclictest0-21swapper22:38:500
7450890,0irq/46-4a10000012-21ksoftirqd/019:39:500
10066998947,0cyclictest0-21swapper23:00:270
7450880,0irq/46-4a10000016636-21snmpd20:31:310
7450880,0irq/46-4a10000012787-21kworker/u2:1220:41:060
10066998857,0cyclictest0-21swapper23:16:000
7450870,0irq/46-4a1000005869-21timerandwakeup23:29:450
7450870,0irq/46-4a10000023792-21/usr/sbin/munin22:48:540
7450870,0irq/46-4a1000001673-21grep20:09:060
7450870,0irq/46-4a10000012277-21aten_r4power_vo19:03:550
7350870,0irq/45-4a10000018550-21apt-get00:08:500
7350870,0irq/45-4a10000015872-21ntp_states23:59:320
216812870,0sleep020436-1kworker/u3:119:33:350
133142870,0sleep012534-1kworker/u3:420:43:460
7450860,0irq/46-4a1000004720-21cron23:28:310
7450860,0irq/46-4a1000004112-21threads20:15:410
7450860,0irq/46-4a10000026438-21sed22:54:430
7450860,0irq/46-4a10000020436-1kworker/u3:119:48:430
7450860,0irq/46-4a10000016656-21runrttasks19:18:460
7450860,0irq/46-4a10000016132-21grep22:24:410
7450860,0irq/46-4a10000014709-1kworker/u3:020:51:370
7450860,0irq/46-4a10000011076-21grep22:10:450
7350860,0irq/45-4a10000011485-21copy20:38:390
7450850,0irq/46-4a1000005088-21sort20:19:080
7450850,0irq/46-4a10000030966-21fschecks_time23:09:110
7450850,0irq/46-4a10000030749-21grep19:59:090
7450850,0irq/46-4a10000029254-21/usr/sbin/munin23:04:130
7450850,0irq/46-4a10000027732-21ntp_offset19:50:230
7450850,0irq/46-4a10000025916-21memory21:19:250
7450850,0irq/46-4a10000022613-21processes19:34:370
7450850,0irq/46-4a10000022453-21fschecks_time00:19:110
7450850,0irq/46-4a10000010400-21runrttasks18:58:560
176622850,0chrt16827-1kworker/u3:022:29:390
7450840,0irq/46-4a1000009588-21runrttasks23:41:200
7450840,0irq/46-4a1000008908-21runrttasks22:04:310
7450840,0irq/46-4a1000007221-21meminfo23:34:220
7450840,0irq/46-4a1000006446-21/usr/sbin/munin20:24:320
7450840,0irq/46-4a1000003387-21seq21:49:020
7450840,0irq/46-4a10000032142-21runrttasks21:38:420
7450840,0irq/46-4a10000027907-21sensors_temp21:24:380
7450840,0irq/46-4a10000020588-21df_abs00:14:000
7450840,0irq/46-4a10000014828-21seq19:13:340
7450840,0irq/46-4a10000014072-21meminfo23:54:230
7450840,0irq/46-4a10000012193-21seq23:49:150
242342840,0chrt23174-1kworker/u3:521:14:260
169672840,0chrt16586-1kworker/u3:120:53:580
7450830,0irq/46-4a1000006488-21grep21:58:360
7450830,0irq/46-4a1000005343-21interrupts21:54:160
7450830,0irq/46-4a10000032367-21df_inode20:04:010
7450830,0irq/46-4a10000029359-21seq19:54:300
7450830,0irq/46-4a10000029056-21diskstats21:29:050
7450830,0irq/46-4a10000024254-21irqstats00:24:220
7450830,0irq/46-4a10000022922-21ls22:44:410
7450830,0irq/46-4a10000020612-21perl21:04:110
7450830,0irq/46-4a1000001812-21grep23:19:060
7450830,0irq/46-4a10000015417-21fw_forwarded_lo19:14:140
7450830,0irq/46-4a10000010114-21aten_r4power_po23:43:540
7450820,0irq/46-4a10000030438-21apt21:33:420
7450820,0irq/46-4a10000019428-21sensors22:34:380
7450820,0irq/46-4a10000018383-21aten_r4power_cu19:23:510
7450820,0irq/46-4a1000001654-21sed21:44:040
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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