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2023-05-30 - 10:14

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 792 highest latencies:
System rack4slot2.osadl.org (updated Tue May 30, 2023 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
745012700,0irq/46-4a10000010832-1kworker/u3:218:59:140
15730210310,0sleep015731-21memory20:44:380
18432980,0sleep026361-1kworker/u3:120:03:510
7450940,0irq/46-4a10000027512-21tune2fs21:18:460
7450940,0irq/46-4a10000027442-21kernelversion19:43:540
7450940,0irq/46-4a10000021834-21runrttasks19:28:290
7450930,0irq/46-4a1000006473-21http21:53:040
7450930,0irq/46-4a1000004934-21/usr/sbin/munin20:13:310
7450930,0irq/46-4a1000003239-21sed20:08:330
7450930,0irq/46-4a10000027278-21/usr/sbin/munin22:53:250
7450930,0irq/46-4a10000025578-21seq21:13:390
7450930,0irq/46-4a10000022335-21df_abs22:38:330
7450930,0irq/46-4a10000017750-21/usr/sbin/munin20:49:140
7450930,0irq/46-4a10000016462-21runrttasks23:54:290
7450930,0irq/46-4a10000011751-21runrttasks22:08:230
7450930,0irq/46-4a1000001154-21munin-run20:03:030
12451999356,0cyclictest0-21swapper20:42:510
7450920,0irq/46-4a1000009058-21cat23:33:490
7450920,0irq/46-4a1000004564-21runrttasks21:46:510
7450920,0irq/46-4a1000003788-21fw_conntrack23:18:490
7450920,0irq/46-4a10000032209-21/usr/sbin/munin21:33:190
7450920,0irq/46-4a10000031037-21ntp_offset19:54:040
7450920,0irq/46-4a10000025723-21irqstats19:38:500
7450920,0irq/46-4a10000024101-21fschecks_count22:43:400
7450920,0irq/46-4a10000020809-21fw_forwarded_lo22:33:470
7450920,0irq/46-4a10000019427-21processes22:29:080
7450920,0irq/46-4a10000017555-21runrttasks23:59:170
7450920,0irq/46-4a10000016786-21latency_hist22:23:040
7450920,0irq/46-4a10000015493-21grep19:09:060
7450920,0irq/46-4a10000014262-21runrttasks19:08:060
7450920,0irq/46-4a10000012354-21fw_forwarded_lo23:43:500
7450920,0irq/46-4a10000010624-21perl23:38:380
7450920,0irq/46-4a10000010496-1kworker/u3:022:05:340
7450910,0irq/46-4a1000007711-21awk21:54:480
7450910,0irq/46-4a1000007218-21fw_conntrack23:28:550
7450910,0irq/46-4a1000004996-21sshd23:23:070
7450910,0irq/46-4a10000031764-1kworker/u3:023:14:340
7450910,0irq/46-4a10000026948-1kworker/u3:000:28:000
7450910,0irq/46-4a10000024469-21irqstats00:18:550
7450910,0irq/46-4a10000023809-21forks19:33:390
7450910,0irq/46-4a10000023195-21/usr/sbin/munin00:14:490
7450910,0irq/46-4a10000019189-21tune2fs00:03:440
7450910,0irq/46-4a10000018865-21irqstats19:18:510
7450910,0irq/46-4a10000017376-21sshd22:23:530
7450910,0irq/46-4a10000014022-21interrupts22:13:540
7450910,0irq/46-4a10000011645-21/usr/sbin/munin20:33:230
7450910,0irq/46-4a10000010497-21memory20:28:580
12451999153,0cyclictest0-21swapper20:53:510
7450900,0irq/46-4a1000009567-21sshd20:26:530
7450900,0irq/46-4a100000935-21seq23:09:140
7450900,0irq/46-4a1000008880-21kernelversion21:58:560
7450900,0irq/46-4a10000032094-21sendmail-mta21:33:070
7450900,0irq/46-4a1000002940-21runrttasks21:42:300
7450900,0irq/46-4a10000025683-21cstates22:48:290
7450900,0irq/46-4a10000024878-21runrttasks21:10:420
7450900,0irq/46-4a10000022472-21ls21:03:540
7450900,0irq/46-4a10000021268-21users20:59:170
7450900,0irq/46-4a10000020634-21if_eth019:24:290
7450900,0irq/46-4a10000020465-21/usr/sbin/munin00:08:240
7450900,0irq/46-4a10000018064-21chrt19:17:120
7450900,0irq/46-4a10000013597-21/usr/sbin/munin23:48:480
7450890,0irq/46-4a1000006816-21grep20:18:400
7450890,0irq/46-4a10000030679-21aten_r4power_po23:03:220
7450890,0irq/46-4a10000029925-21runrttasks19:51:070
7450890,0irq/46-4a10000029060-21df_inode21:23:320
7450880,0irq/46-4a10000029147-21df_abs22:58:330
7450870,0irq/46-4a10000029001-21cat00:33:060
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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