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2022-12-09 - 17:13

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 Fri Dec 09, 2022 12:43:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502550,0irq/46-4a10000018236-1kworker/u3:107:09:070
7450980,0irq/46-4a10000019470-21latency_hist11:54:450
7450960,0irq/46-4a100000801-21runrttasks12:34:550
7450960,0irq/46-4a1000002977-21runrttasks09:31:180
7450950,0irq/46-4a10000011524-21sshd09:55:360
20702950,0sleep01509-1kworker/u3:009:29:100
151992959,0sleep015236-21awk10:05:450
7450940,0irq/46-4a1000007620-21chrt08:10:120
7450940,0irq/46-4a100000433-21snmpd10:14:120
7450940,0irq/46-4a10000031218-21chrt07:45:030
7450940,0irq/46-4a10000024970-21memory07:25:370
7450930,0irq/46-4a1000004556-21fw_conntrack11:10:220
7450930,0irq/46-4a1000004074-21/usr/sbin/munin09:35:030
7450930,0irq/46-4a10000028990-21which10:46:450
7450930,0irq/46-4a10000026612-21df_inode10:40:120
7450930,0irq/46-4a10000019443-21/usr/sbin/munin10:20:270
7450930,0irq/46-4a10000012565-21ls11:34:450
7350930,0irq/45-4a10000029767-1kworker/u3:009:16:120
7450920,0irq/46-4a1000009869-21runrttasks11:25:320
7450920,0irq/46-4a1000009722-21runrttasks08:16:220
7450920,0irq/46-4a1000006333-21runrttasks09:40:340
7450920,0irq/46-4a1000006211-21memory08:05:310
7450920,0irq/46-4a1000004011-21cpu08:00:020
7450920,0irq/46-4a1000003233-21sendmail_mailst11:05:420
7450920,0irq/46-4a10000029684-21cron12:24:420
7450920,0irq/46-4a10000026438-21fschecks_time07:30:160
7450920,0irq/46-4a10000024904-21fschecks_time09:00:160
7450920,0irq/46-4a10000024708-21aten_r4power_cu12:10:030
7450920,0irq/46-4a10000023326-21ntp_offset07:20:370
7450920,0irq/46-4a10000022857-21/usr/sbin/munin10:30:070
7450920,0irq/46-4a1000002268-21awk11:04:430
7450920,0irq/46-4a10000018599-21seq07:10:000
7450910,0irq/46-4a1000009745-21memory09:50:320
7450910,0irq/46-4a1000008383-21awk09:45:480
7450910,0irq/46-4a10000032347-21/usr/sbin/munin09:20:480
7450910,0irq/46-4a10000031720-21cpuspeed12:30:050
7450910,0irq/46-4a10000028057-21cpuspeed09:10:020
7450910,0irq/46-4a1000002731-21chrt07:55:260
7450910,0irq/46-4a10000026616-21df12:15:100
7450910,0irq/46-4a10000024797-21df10:35:090
7450910,0irq/46-4a10000022974-21apt12:04:530
7450910,0irq/46-4a10000021164-21runrttasks10:24:570
7450910,0irq/46-4a10000020394-21munin-node07:14:520
7450910,0irq/46-4a10000018009-21df_inode10:15:110
7450910,0irq/46-4a10000015737-21runrttasks11:42:540
7450910,0irq/46-4a10000014129-21cron10:04:420
7450910,0irq/46-4a10000012105-21runrttasks08:23:070
7350910,0irq/45-4a10000030547-21ntpq12:25:400
18470999158,0cyclictest0-21swapper07:40:380
7450900,0irq/46-4a1000007959-21tune2fs11:20:190
7450900,0irq/46-4a100000759-21diskstats07:50:120
7450900,0irq/46-4a1000005985-21cpu11:15:060
7450900,0irq/46-4a10000029699-21/usr/sbin/munin10:50:290
7450900,0irq/46-4a10000028077-21diskstats07:35:130
7450900,0irq/46-4a10000022210-21cat12:00:460
7450900,0irq/46-4a10000021105-21/usr/sbin/munin08:50:040
7450900,0irq/46-4a10000019628-21df_inode08:45:110
7450900,0irq/46-4a10000016072-21ls08:35:060
7450900,0irq/46-4a10000015214-21timerwakeupswit08:31:220
18470999057,0cyclictest0-21swapper08:55:340
7450890,0irq/46-4a10000032714-21sshd10:57:380
7450890,0irq/46-4a10000019480-21wc11:54:460
7450890,0irq/46-4a10000018683-21seq08:40:490
7450890,0irq/46-4a10000017708-21ls11:49:440
7450890,0irq/46-4a10000013181-21/usr/sbin/munin08:25:400
7450880,0irq/46-4a10000026488-21/usr/sbin/munin09:05:110
7450880,0irq/46-4a10000013380-21/usr/sbin/munin11:35:380
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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