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2022-08-16 - 05:38

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 376 highest latencies:
System rack4slot2.osadl.org (updated Tue Aug 16, 2022 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502590,0irq/46-4a10000026218-1kworker/u3:218:53:190
477129125,0sleep04809-21date22:31:510
7450900,0irq/46-4a1000003607-21/usr/sbin/munin19:18:210
130392900,0sleep011307-1kworker/u3:119:46:460
7450890,0irq/46-4a10000010576-21load21:13:160
7450880,0irq/46-4a1000008737-21seq00:17:220
7450880,0irq/46-4a1000006630-21wget22:37:060
7450880,0irq/46-4a10000026809-21sendmail20:26:490
306592880,0sleep026463-1kworker/u3:120:37:120
7350870,0irq/45-4a10000018935-21fschecks_count23:12:200
7450860,0irq/46-4a10000026615-21vmstat23:34:030
7450860,0irq/46-4a10000013312-21runrttasks21:22:070
205712867,0sleep020596-21fw_conntrack21:42:260
7450850,0irq/46-4a10000032236-21egrep20:42:070
7450850,0irq/46-4a1000003004-21wc20:51:510
7450850,0irq/46-4a10000028981-21sed18:57:550
7450850,0irq/46-4a10000023593-21sshd21:52:070
7450850,0irq/46-4a1000001325-21cut19:12:060
7450850,0irq/46-4a10000011319-21cron19:41:460
7350850,0irq/45-4a10000015780-21pluginstate21:27:500
304372850,0sleep018185-1kworker/u3:019:02:260
14932850,0chrt932-1kworker/u3:023:56:550
120282850,0sleep04297-1kworker/u3:222:52:250
7450840,0irq/46-4a1000009274-21runrttasks19:33:560
7450840,0irq/46-4a10000030909-21fschecks_count23:47:190
7450840,0irq/46-4a10000029062-21tune2fs20:32:210
7450840,0irq/46-4a10000025331-21latency_hist23:31:520
7450840,0irq/46-4a10000021160-21/usr/sbin/munin20:07:530
7450840,0irq/46-4a10000017046-21seq21:32:220
7450840,0irq/46-4a1000001635-21df_inode20:47:140
7450840,0irq/46-4a10000013903-21ntpq19:47:400
7350840,0irq/45-4a1000008343-21aten_r4power_po22:42:060
7350840,0irq/45-4a1000006798-21chrt21:02:310
27802998456,0cyclictest0-21swapper20:14:020
7450830,0irq/46-4a1000009756-21apt-get21:11:470
7450830,0irq/46-4a1000006537-21munin-run00:11:460
7450830,0irq/46-4a100000534-21grep19:07:510
7450830,0irq/46-4a10000032332-21cstates22:17:080
7450830,0irq/46-4a1000003146-21aten_r4power_cu22:27:050
7450830,0irq/46-4a10000029351-21/usr/sbin/munin23:42:300
7450830,0irq/46-4a10000026999-21runrttasks22:02:030
7450830,0irq/46-4a10000018796-21fw_conntrack20:02:230
7450830,0irq/46-4a10000016663-21wget19:57:070
7450830,0irq/46-4a1000001480-21snmpd23:10:280
7450830,0irq/46-4a1000001480-21snmpd19:54:090
7450830,0irq/46-4a10000014022-21meminfo22:57:420
7450830,0irq/46-4a10000012927-21runrttasks21:20:020
7350830,0irq/45-4a1000002824-21kworker/u2:221:01:510
7450820,0irq/46-4a1000007059-21ntpq19:27:430
7450820,0irq/46-4a1000005245-21/usr/sbin/munin19:22:390
7450820,0irq/46-4a1000003540-21diskstats00:02:190
7450820,0irq/46-4a10000032731-21fw_conntrack23:52:300
7450820,0irq/46-4a10000031158-21sh22:12:420
7450820,0irq/46-4a10000027116-21egrep20:27:110
7450820,0irq/46-4a10000027107-21chrt23:37:020
7450820,0irq/46-4a10000024106-21seq20:17:370
7450820,0irq/46-4a10000022472-21if_err_eth023:22:300
7450820,0irq/46-4a1000002236-21run-parts22:22:460
7450820,0irq/46-4a10000022228-21grep21:47:240
7450820,0irq/46-4a10000015126-21aten_r4power_cu23:02:070
7450820,0irq/46-4a10000010796-21runrttasks00:22:460
297602820,0sleep028313-1kworker/u3:122:07:530
102942826,0sleep010297-21diskstats22:47:160
7450810,0irq/46-4a1000006720-21aten_r4power_en00:12:060
7450810,0irq/46-4a10000020772-21/usr/sbin/munin23:17:320
7450810,0irq/46-4a10000010236-1kworker/u3:121:37:180
7450800,0irq/46-4a10000025898-21meminfo21:57:400
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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