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2023-06-09 - 13:01

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 50 highest latencies:
System rack4slot2.osadl.org (updated Fri Jun 09, 2023 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74501960,0irq/46-4a10000030793-21runrttasks18:57:470
324159910357,0cyclictest0-21swapper19:50:400
259462990,0sleep025317-1kworker/u3:220:15:010
7450960,0irq/46-4a10000028731-21df_inode23:33:070
7450960,0irq/46-4a10000015973-21munin-run19:47:390
32415999568,0cyclictest0-21swapper19:38:290
7450940,0irq/46-4a10000016883-21runrttasks22:58:230
7450940,0irq/46-4a10000011861-21ntp_kernel_err21:09:180
7450930,0irq/46-4a1000009724-21forks21:03:140
7450930,0irq/46-4a1000004869-21meminfo20:48:360
7450930,0irq/46-4a1000004256-21latency_hist22:22:400
7450930,0irq/46-4a10000032378-21seq23:43:250
7450930,0irq/46-4a10000027202-21/usr/sbin/munin23:28:250
7450930,0irq/46-4a10000021861-21meminfo20:03:280
7450930,0irq/46-4a10000019766-21runrttasks21:33:200
7450930,0irq/46-4a10000015715-21ls22:53:480
7450930,0irq/46-4a10000015651-1kworker/u3:020:19:090
7450930,0irq/46-4a10000015651-1kworker/u3:019:54:530
7450930,0irq/46-4a10000014572-21seq21:17:590
7450930,0irq/46-4a10000013253-21wget00:23:030
7450920,0irq/46-4a1000008365-21interrupts22:33:260
7450920,0irq/46-4a1000008231-21chrt20:58:290
7450920,0irq/46-4a1000008015-21ls19:23:240
7450920,0irq/46-4a1000004123-21latency_hist20:47:410
7450920,0irq/46-4a10000030290-21fw_conntrack20:28:150
7450920,0irq/46-4a1000002550-21latency_hist22:17:380
7450920,0irq/46-4a10000023425-21fw_conntrack20:08:180
7450920,0irq/46-4a10000022033-21meminfo21:38:320
7450920,0irq/46-4a10000019861-21df_inode19:58:100
7450920,0irq/46-4a10000018581-21fw_conntrack23:03:230
7450920,0irq/46-4a10000012915-21runrttasks21:13:230
7450920,0irq/46-4a10000012554-21munin-run19:37:410
7450920,0irq/46-4a10000011967-21ntp_states22:43:360
141152920,0sleep012389-1kworker/u3:222:49:160
7450910,0irq/46-4a1000008475-21/usr/sbin/munin00:08:260
7450910,0irq/46-4a1000006757-21ls22:28:330
7450910,0irq/46-4a1000006345-21wget00:02:580
7450910,0irq/46-4a1000006296-21diskstats20:53:130
7450910,0irq/46-4a1000005685-21seq22:25:290
7450910,0irq/46-4a10000032748-21sed22:08:500
7450910,0irq/46-4a10000031858-21sed20:33:060
7450910,0irq/46-4a10000031723-21grep23:42:390
7450910,0irq/46-4a1000003054-21ls19:08:480
7450910,0irq/46-4a10000030247-21runrttasks22:03:100
7450910,0irq/46-4a10000028619-21if_eth020:23:200
7450910,0irq/46-4a10000027338-21grep21:53:400
7450910,0irq/46-4a10000025501-21grep23:23:580
7450910,0irq/46-4a10000024282-21/usr/sbin/munin23:18:460
7450910,0irq/46-4a10000022065-21if_err_eth023:13:240
7450910,0irq/46-4a10000017876-21ls21:27:410
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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