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2022-07-01 - 19:43

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 792 highest latencies:
System rack5slot7.osadl.org (updated Fri Jul 01, 2022 12:44:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
923223982169,176sleep00-21swapper06:38:230
13159917720,130cyclictest707-21irqstats09:12:440
13159916717,123cyclictest6935-21apt-get09:31:550
13159916715,124cyclictest18570-21apt-get10:06:520
13159916619,122cyclictest24382-21apt-get08:46:540
13159916520,119cyclictest31064-21apt-get09:06:560
13159916518,122cyclictest10948-21apt-get11:21:520
13159916517,107cyclictest2684-21apt-get10:56:550
13159916514,124cyclictest19253-21apt-get11:46:500
13159916417,122cyclictest4346-21apt-get11:01:570
13159916417,121cyclictest28498-21apt-get10:36:570
13159916218,118cyclictest11024-21apt-get07:36:480
13159916217,119cyclictest25869-21apt-get12:06:510
13159916216,122cyclictest14437-21grep07:52:410
13159916214,125cyclictest8601-21apt-get09:36:580
13159916111,128cyclictest26066-21/usr/sbin/munin08:53:310
13159916018,118cyclictest29651-21df09:02:140
13159916016,119cyclictest7662-21apt-get11:11:540
13159916015,120cyclictest14285-21apt-get11:32:000
13159915918,103cyclictest12600-21apt-get11:26:520
13159915914,104cyclictest20204-21/usr/sbin/munin10:13:090
13159915834,105cyclictest31779-21apt-get10:46:550
13159915829,111cyclictest24786-21wc12:02:550
13159915825,116cyclictest16247-21sed08:02:420
13159915817,101cyclictest26106-21users10:28:170
13159915813,105cyclictest5960-21/usr/sbin/munin11:08:040
13159915734,103cyclictest16164-21cat11:37:100
13159915720,113cyclictest5702-21irqstats09:27:420
13159915717,115cyclictest3977-21fw_conntrack09:22:350
13159915717,112cyclictest27219-21fw_conntrack10:32:350
13159915715,121cyclictest1394-21fw_conntrack10:52:310
13159915714,118cyclictest16909-21apt-get10:01:550
13159915713,120cyclictest16203-21/usr/sbin/munin09:58:240
13159915636,100cyclictest23794-21ssh10:22:160
13159915617,117cyclictest10319-21ssh11:18:460
13159915518,113cyclictest24218-21apt12:01:430
13159915518,113cyclictest11922-21apt-get09:46:520
13159915518,112cyclictest21890-21apt-get10:17:000
13159915517,111cyclictest17311-21apt-get08:11:500
13159915516,96cyclictest10876-21ntp_states09:43:030
13159915514,121cyclictest22546-21users08:37:470
13159915514,116cyclictest14615-21/usr/sbin/munin07:57:370
13159915514,102cyclictest14026-21ssh09:52:390
13159915513,119cyclictest22701-21apt08:41:440
13159915512,102cyclictest28075-21/usr/sbin/munin08:57:240
13159915511,119cyclictest21609-21sed08:32:380
13159915418,112cyclictest20936-21apt-get11:51:520
13159915331,98cyclictest20703-21grep08:27:400
13159915317,113cyclictest11909-21apt-get07:41:530
13159915316,95cyclictest30424-21df10:42:210
13159915313,116cyclictest17597-21apt-get11:41:560
13159915311,119cyclictest2511-21sshd09:17:540
1315991529,119cyclictest6628-21grep07:11:570
13159915213,114cyclictest5121-21sshd07:02:250
13159915211,119cyclictest2155-21sed06:42:410
13159915110,115cyclictest4109-21sed06:57:050
1315991509,118cyclictest14694-21snmpd08:22:310
1315991499,115cyclictest14694-21snmpd08:17:270
1315991499,101cyclictest8221-21modprobe07:21:330
13159914920,101cyclictest10469-21irqstats07:32:180
13159914912,113cyclictest16457-21cut08:06:550
13159914815,94cyclictest9490-21df_inode07:27:100
13159914811,113cyclictest13333-21ps07:47:350
13159914618,104cyclictest8324-21apt-get07:21:500
13159914511,111cyclictest2929-21sort06:51:380
13159914510,98cyclictest5718-21grep07:06:560
13159914510,116cyclictest3766-21wc06:56:350
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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