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2021-09-29 - 04:48

ARMv7 Processor rev 2 (v7l), 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 Wed Sep 29, 2021 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74501980,0irq/46-4a10000012502-21runrttasks19:07:140
185562940,0sleep013358-1kworker/u3:120:59:080
7350930,0irq/45-4a10000029454-21/usr/sbin/munin23:04:580
100452929,0sleep010066-21modprobe20:34:330
7350890,0irq/45-4a10000011772-21modprobe20:39:320
7450880,0irq/46-4a1000004395-21uptime20:15:400
7450880,0irq/46-4a10000016045-21fw_forwarded_lo00:00:140
7350880,0irq/45-4a10000032533-21sshd20:04:550
7450870,0irq/46-4a100000433-21snmpd23:50:170
21662876,0sleep02169-21diskstats23:20:040
12825998755,0cyclictest0-21swapper20:10:170
7450860,0irq/46-4a10000031733-21ls20:01:350
7450860,0irq/46-4a10000024534-21ls21:15:240
7450860,0irq/46-4a10000010660-21runrttasks22:10:150
7350860,0irq/45-4a10000013724-21latency_hist22:19:370
184362860,0chrt14368-1kworker/u3:119:23:390
7450850,0irq/46-4a100000433-21snmpd23:54:580
7450850,0irq/46-4a10000028057-21memory23:00:260
7450850,0irq/46-4a10000026782-21awk22:56:390
7450850,0irq/46-4a10000026209-21ls19:45:340
7450850,0irq/46-4a10000024971-21rt-features00:25:360
7450850,0irq/46-4a10000021085-21grep00:15:060
7450850,0irq/46-4a10000014603-21seq19:14:350
7450850,0irq/46-4a10000011338-21switchtime23:45:340
7450850,0irq/46-4a10000010182-21apt-get22:09:320
7350850,0irq/45-4a1000008699-21apt-get23:39:490
7350850,0irq/45-4a10000031180-21fschecks_time21:35:090
7350850,0irq/45-4a10000020829-21df_abs22:40:000
17342850,0chrt1588-1kworker/u3:021:44:360
7450840,0irq/46-4a1000006542-21chrt20:23:540
7450840,0irq/46-4a1000006350-21vmstat23:30:410
7450840,0irq/46-4a1000005186-21ls23:29:340
7450840,0irq/46-4a100000433-21snmpd22:25:160
7450840,0irq/46-4a10000028816-21kworker/u2:019:59:430
7450840,0irq/46-4a10000028232-21mailstats21:25:360
7450840,0irq/46-4a10000027734-21fw_forwarded_lo19:50:150
7450840,0irq/46-4a10000025963-21diskstats21:20:020
7450840,0irq/46-4a10000024274-21fschecks_time19:40:080
7450840,0irq/46-4a10000023690-21chrt21:14:040
7450840,0irq/46-4a10000022937-21grep22:45:260
7450840,0irq/46-4a10000022690-21df_abs00:20:000
7450840,0irq/46-4a10000022026-1kworker/u3:022:50:130
7450840,0irq/46-4a10000019204-21seq22:35:060
7450840,0irq/46-4a10000018519-21runrttasks22:32:510
7450840,0irq/46-4a10000016853-21chrt20:54:120
7450840,0irq/46-4a10000014380-21open_inodes20:45:310
7450840,0irq/46-4a10000012339-21runrttasks22:15:060
7450830,0irq/46-4a1000007093-21diskstats20:25:030
7450830,0irq/46-4a100000433-21snmpd23:34:460
7450830,0irq/46-4a100000433-21snmpd21:02:200
7450830,0irq/46-4a1000003685-21sh21:49:570
7450830,0irq/46-4a100000362-21entropy21:40:030
7450830,0irq/46-4a10000022417-21sed19:34:580
7450830,0irq/46-4a10000021407-21swap21:05:360
7450830,0irq/46-4a10000015083-21diskstats19:14:550
7450830,0irq/46-4a10000012280-21fschecks_count20:40:080
201502830,0sleep018715-1kworker/u3:019:28:400
7450820,0irq/46-4a100000473-21fschecks_count23:15:070
7450820,0irq/46-4a10000031169-21diskstats23:10:010
7450820,0irq/46-4a10000029401-21cut21:30:050
7450820,0irq/46-4a10000027686-21wget00:34:530
7450820,0irq/46-4a10000017903-21meminfo00:05:230
7450810,0irq/46-4a1000006897-21/usr/sbin/munin22:00:150
7450810,0irq/46-4a10000027326-21chrt00:33:540
7450810,0irq/46-4a10000020764-21tune2fs19:30:060
7450800,0irq/46-4a10000032266-1kworker/u3:121:55:270
7450800,0irq/46-4a10000018945-21date00:09:340
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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