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2022-06-27 - 02:31

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 highest latencies:
System rack4slot2.osadl.org (updated Mon Jun 27, 2022 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2831628310,0sleep018812-1kworker/u3:118:57:030
7350900,0irq/45-4a10000015571-21/usr/sbin/munin19:54:480
7450860,0irq/46-4a10000016668-21wget23:09:060
28577998559,0cyclictest0-21swapper22:25:130
245362855,0sleep023138-21apt-get20:21:210
7450840,0irq/46-4a1000007964-21copy00:18:510
7450840,0irq/46-4a10000031569-1kworker/u3:323:53:470
7450840,0irq/46-4a10000016636-21snmpd21:18:590
7450840,0irq/46-4a10000012084-21sshd22:55:130
28577998450,0cyclictest0-21swapper20:34:350
28577998448,0cyclictest0-21swapper20:18:570
28577998445,0cyclictest0-21swapper19:11:330
7450830,0irq/46-4a1000008466-21/usr/sbin/munin19:34:370
7450830,0irq/46-4a1000004287-21runrttasks19:23:490
7450830,0irq/46-4a10000028787-21runrttasks23:44:090
7450830,0irq/46-4a10000016636-21snmpd22:09:380
7450830,0irq/46-4a10000016636-21snmpd21:39:170
7350830,0irq/45-4a1000002572-1kworker/u3:100:05:190
7350830,0irq/45-4a10000019231-21/usr/sbin/munin23:14:580
7350830,0irq/45-4a10000015582-21kworker/u2:023:20:040
28577998357,0cyclictest0-21swapper21:07:420
28577998356,0cyclictest0-21swapper22:51:430
28577998355,0cyclictest0-21swapper23:33:560
267162838,0sleep026702-21apt-get20:29:040
7450820,0irq/46-4a10000030307-21cut22:14:070
7450820,0irq/46-4a10000028355-21kworker/u2:022:38:580
7450820,0irq/46-4a10000016636-21snmpd21:03:500
7350820,0irq/45-4a1000005663-1kworker/u3:223:03:560
7350820,0irq/45-4a10000025192-1kworker/u3:023:55:080
28577998257,0cyclictest0-21swapper23:28:560
116352820,0chrt7717-1kworker/u3:219:44:190
7450810,0irq/46-4a1000008577-21fw_conntrack00:19:500
7450810,0irq/46-4a1000006237-21latency_hist00:13:460
7450810,0irq/46-4a1000003860-21grep22:29:520
7450810,0irq/46-4a1000003051-21df_abs20:54:130
7450810,0irq/46-4a10000027770-21/usr/sbin/munin23:39:500
7450810,0irq/46-4a10000026824-21chrt22:04:140
7450810,0irq/46-4a10000023264-21wc21:53:490
7450810,0irq/46-4a10000016871-21fw_forwarded_lo19:59:250
7450810,0irq/46-4a10000016636-21snmpd21:59:310
7450810,0irq/46-4a10000016636-21snmpd21:08:530
7450810,0irq/46-4a1000001606-21seq19:14:350
7450810,0irq/46-4a10000015858-21kworker/u2:323:05:540
7450810,0irq/46-4a10000014925-1kworker/u3:021:29:540
7450810,0irq/46-4a10000013282-21cstates21:24:090
7350810,0irq/45-4a10000032603-21grep20:44:490
7450800,0irq/46-4a1000009638-21sendmail-msp22:48:480
7450800,0irq/46-4a1000004863-21seq19:24:240
7450800,0irq/46-4a10000030483-21date19:03:560
7450800,0irq/46-4a10000030244-21wget20:39:070
7450800,0irq/46-4a10000025796-21/usr/sbin/munin20:24:470
7450800,0irq/46-4a10000016960-21fschecks_time21:34:230
7450800,0irq/46-4a10000011350-21cron00:28:460
7450800,0irq/46-4a10000010517-21sendmail_mailst21:14:520
7450790,0irq/46-4a1000004620-21/usr/sbin/munin22:34:250
7450790,0irq/46-4a10000032647-21ntp_states22:19:420
7450790,0irq/46-4a1000002529-21runrttasks20:52:470
7450790,0irq/46-4a10000023324-21cat21:53:510
7450790,0irq/46-4a10000021703-21/usr/sbin/munin23:24:070
7450790,0irq/46-4a10000020246-21df_inode21:44:150
7450790,0irq/46-4a10000019537-21runrttasks20:07:350
7450790,0irq/46-4a10000010590-21sed19:39:530
7350790,0irq/45-4a1000006352-21df19:29:080
7350790,0irq/45-4a10000012979-21runrttasks19:48:540
290002790,0sleep018812-1kworker/u3:118:59:150
7450780,0irq/46-4a1000002302-21seq23:59:570
7450780,0irq/46-4a10000019812-21latency_hist20:08:520
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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