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2022-06-27 - 00:51

ARM Freescale i.MX6UL @528 MHz, Linux 4.16.15-rt7 (Profile)

Latency plot of system in rack #5, slot #7
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 rack5slot7.osadl.org (updated Sun Jun 26, 2022 12:44:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17083224812218,98sleep00-21swapper06:39:520
173339917812,141cyclictest15126-21/usr/sbin/munin10:43:130
173339917716,136cyclictest12895-21apt-get10:37:080
173339917632,22cyclictest20627-21apt-get06:57:050
173339917243,109cyclictest18021-21aten_r5power_po10:52:210
173339917220,27cyclictest31820-21ntp_states11:33:180
173339917038,111cyclictest10131-21sh12:06:020
173339916920,25cyclictest26112-21munin-run11:16:520
173339916917,127cyclictest6344-21users11:53:350
173339916911,134cyclictest7211-21/usr/sbin/munin11:57:210
173339916819,23cyclictest22937-21users09:28:370
173339916818,124cyclictest5116-21memory10:13:110
173339916817,20cyclictest10841-21irqstats12:07:580
173339916811,32cyclictest7025-21/usr/sbin/munin08:43:320
173339916718,22cyclictest11234-21apt-get10:32:100
173339916715,28cyclictest26497-21df11:17:350
173339916522,115cyclictest4112-21fw_conntrack11:47:500
173339916521,24cyclictest31072-21munin-run11:31:490
173339916518,25cyclictest9548-21apt-get10:27:070
173339916436,23cyclictest1504-21sh08:11:480
173339916417,25cyclictest9147-21irqstats08:48:020
173339916417,107cyclictest21014-21ntp_states09:23:280
173339916415,27cyclictest3619-21ssh11:46:490
173339916413,28cyclictest12073-21ssh08:57:140
173339916412,130cyclictest17705-21ssh10:51:300
173339916335,111cyclictest14268-21sshd09:03:150
173339916321,23cyclictest32030-21apt-get09:57:090
173339916319,120cyclictest2174-21users10:03:370
173339916317,25cyclictest17378-21df_inode09:12:410
173339916316,22cyclictest6115-21apt-get08:37:050
173339916222,27cyclictest6691-21irqstats10:17:590
173339916218,22cyclictest30898-21memory09:53:110
173339916118,40cyclictest29207-21memory09:48:100
173339916117,40cyclictest27880-21apt-get11:22:080
173339916116,124cyclictest21850-21ntp_states11:03:210
173339916113,45cyclictest25960-21ntpdc09:38:150
173339916110,128cyclictest9281-21ssh10:26:050
173339916032,18cyclictest24017-21df09:32:370
173339916020,29cyclictest3244-21df_inode10:07:420
173339916017,25cyclictest22883-21apt-get11:07:050
173339916015,22cyclictest20497-21users10:58:350
173339916014,21cyclictest18706-21apt-get09:17:090
173339916012,29cyclictest27010-21apt09:41:590
173339915937,103cyclictest15762-21if_err_eth009:07:530
173339915830,25cyclictest10792-21if_eth008:52:550
173339915816,118cyclictest19084-21df_inode06:47:430
173339915813,40cyclictest1739-21ssh11:40:450
173339915738,24cyclictest17653-21df_abs06:42:210
173339915736,102cyclictest31830-21ntp_kernel_err07:57:440
173339915716,23cyclictest27695-21munin-run07:36:500
173339915715,27cyclictest22404-21/usr/sbin/munin07:07:470
173339915713,26cyclictest2429-21munin-plugin-st08:16:480
173339915614,26cyclictest29153-21ntpq07:42:440
173339915520,24cyclictest2529-21apt-get08:17:030
173339915520,106cyclictest21851-21irqstats07:02:340
173339915519,24cyclictest5220-21apt-get08:32:040
173339915518,23cyclictest26785-21munin-run07:31:510
173339915515,34cyclictest19733-21apt-get06:52:050
173339915515,23cyclictest5105-21munin-run08:31:490
173339915511,24cyclictest23314-21/usr/sbin/munin07:12:480
173339915427,18cyclictest0-21swapper08:02:130
173339915427,104cyclictest25823-21unixbench_singl07:22:550
173339915416,25cyclictest28548-21users07:37:540
173339915411,26cyclictest31334-21ls07:56:520
173339915319,22cyclictest24212-21apt-get07:17:050
173339915316,22cyclictest3414-21apt-get08:22:040
173339915214,23cyclictest29574-21apt-get07:47:060
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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