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2023-02-06 - 21:15

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 100 highest latencies:
System rack5slot7.osadl.org (updated Mon Feb 06, 2023 12:44:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22416223760,11sleep022188-1kworker/u3:106:26:340
231939917037,113cyclictest21502-21unixbench_singl10:42:360
231939917020,27cyclictest11869-21memory11:52:140
231939917020,124cyclictest11903-21users08:21:560
231939916919,126cyclictest8389-21df_inode11:41:420
231939916917,127cyclictest12995-21apt-get11:56:160
231939916916,23cyclictest26405-21apt-get09:21:010
231939916916,131cyclictest10640-21memory08:16:380
231939916817,23cyclictest28083-21apt-get09:26:090
231939916816,127cyclictest6348-21apt-get11:36:050
231939916815,129cyclictest1303-21aten_r5power_po07:26:080
231939916719,123cyclictest17777-21memory10:32:050
231939916718,25cyclictest3497-21ssh09:49:090
231939916718,126cyclictest4202-21df09:51:330
231939916718,125cyclictest8815-21munin-run10:05:440
231939916717,25cyclictest28861-21apt-get11:06:080
231939916716,127cyclictest1385-21apt-get11:21:060
231939916712,113cyclictest19975-21ssh08:55:500
231939916616,125cyclictest27209-21/usr/sbin/munin11:01:410
231939916616,123cyclictest13938-21apt-get10:21:060
231939916615,112cyclictest3842-21munin-run07:40:430
231939916612,130cyclictest17245-21ssh08:45:470
231939916516,22cyclictest25535-21apt-get10:56:050
231939916512,129cyclictest16465-21grep10:27:310
231939916511,130cyclictest24362-21awk09:12:170
231939916418,24cyclictest18897-21apt-get10:36:150
231939916417,122cyclictest5585-21apt-get09:56:080
231939916416,123cyclictest21039-21apt-get09:01:040
231939916413,129cyclictest24402-21ssh10:52:080
231939916413,125cyclictest8449-21apt-get08:06:030
231939916411,129cyclictest1197-21ntp_kernel_pll_09:42:150
231939916320,124cyclictest30509-21cat07:06:370
231939916226,18cyclictest0-21swapper06:37:100
231939916215,25cyclictest9569-21ntp_states10:07:200
231939916212,126cyclictest30491-21/usr/sbin/munin11:11:340
231939916212,125cyclictest23065-21sshd10:47:320
231939916211,128cyclictest12979-21sh08:30:570
231939916210,129cyclictest12074-21cut08:26:100
231939916133,95cyclictest5605-21head11:32:310
231939916131,109cyclictest25688-21cut06:41:130
231939916119,22cyclictest10064-21fw_conntrack11:46:450
231939916116,122cyclictest23603-21munin-run09:10:440
231939916116,119cyclictest29197-21apt-get07:00:590
231939916115,124cyclictest32164-21cat09:37:290
231939916114,124cyclictest30266-21memory09:32:110
231939916114,124cyclictest10590-21apt-get10:11:070
231939916017,119cyclictest15546-21munin-run08:40:440
231939916016,119cyclictest26500-21apt-get06:46:040
231939915931,111cyclictest9393-21grep08:11:110
231939915921,28cyclictest2937-21munin-run07:35:430
231939915917,119cyclictest24092-21munin-run06:35:420
231939915913,124cyclictest12245-21/usr/sbin/munin10:15:540
231939915912,121cyclictest28110-21sed06:51:540
231939915911,25cyclictest26257-21modprobe09:20:410
231939915819,26cyclictest32679-21munin-run07:20:440
231939915816,26cyclictest32609-21irqstats11:16:590
231939915813,119cyclictest4014-21cut07:41:110
23193991579,125cyclictest3568-21wc11:27:040
231939915721,27cyclictest598-21df_inode07:21:260
231939915715,118cyclictest5741-21apt-get07:51:040
23193991569,22cyclictest20014-21sshd08:55:530
231939915611,27cyclictest17935-21ssh08:49:070
231939915522,27cyclictest7549-21/usr/sbin/munin08:01:590
231939915517,27cyclictest6979-21irqstats07:56:320
231939915512,26cyclictest31159-21ls07:11:150
231939915421,24cyclictest28690-21memory06:56:370
231939915419,25cyclictest5644-21munin-run07:50:430
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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