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2023-06-06 - 04:17

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 Tue Jun 06, 2023 00:44:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27656224582220,90sleep00-21swapper18:24:400
277109910318,67cyclictest14715-21apt-get21:55:170
277109910317,65cyclictest27834-21fw_conntrack20:55:530
277109910219,47cyclictest26109-21munin-run22:29:510
277109910219,21cyclictest13326-21df21:50:360
277109910217,47cyclictest30102-21ssh22:41:190
277109910216,66cyclictest31457-21ssh22:45:360
277109910212,46cyclictest32428-21ssh21:10:180
277109910116,64cyclictest31016-21df21:05:390
277109910115,64cyclictest25795-21ssh20:50:110
277109910112,23cyclictest5276-21apt-get23:05:210
277109910111,66cyclictest7183-21awk21:31:270
277109910017,61cyclictest8780-21df23:15:370
277109910017,23cyclictest17865-21df_inode20:25:500
277109910016,22cyclictest17345-21users23:41:370
277109910014,24cyclictest28523-21ntp_states22:36:250
277109910012,25cyclictest18944-21ssh22:07:000
277109910011,24cyclictest26613-21/usr/sbin/munin22:30:530
277109910011,24cyclictest11815-21fw_conntrack21:45:540
27710999932,51cyclictest0-21swapper20:32:120
27710999927,54cyclictest0-21swapper21:22:030
27710999917,45cyclictest2392-21df_inode22:55:470
27710999917,44cyclictest22205-21users22:16:450
27710999916,23cyclictest8838-21ntp_states21:36:230
27710999914,65cyclictest16692-21fw_conntrack22:00:470
27710999913,49cyclictest19212-21ssh23:48:220
27710999818,41cyclictest15764-21users23:36:390
27710999816,43cyclictest825-21irqstats22:51:040
27710999716,24cyclictest11926-21df23:25:420
27710999716,20cyclictest22497-21apt-get20:40:210
27710999714,64cyclictest10526-21irqstats23:21:050
27710999712,45cyclictest6897-21apt-get23:10:170
27710999710,65cyclictest21129-21munin-run22:14:510
27710999710,48cyclictest20021-21ssh23:51:040
27710999613,25cyclictest29077-21snmpd19:24:550
27710999613,22cyclictest29181-21wget21:00:260
27710999612,42cyclictest23268-21df_inode22:20:480
27710999612,23cyclictest25572-21ssh20:49:290
27710999611,63cyclictest1697-21wget21:15:310
27710999611,47cyclictest4409-21sendmail_mailqu23:01:300
27710999519,55cyclictest20854-21apt-get20:35:150
27710999512,63cyclictest17383-21ssh20:24:500
27710999512,46cyclictest10049-21sh21:40:330
27710999510,26cyclictest14475-21ssh23:33:360
2771099949,23cyclictest14826-21cut20:10:130
27710999414,61cyclictest5173-21df21:25:400
27710999411,47cyclictest10109-21unixbench_singl19:41:060
27710999235,39cyclictest322-21sort18:49:550
27710999216,37cyclictest16020-21irqstats20:15:380
27710999211,59cyclictest11341-21ls19:50:200
27710999211,42cyclictest12077-21/usr/sbin/munin19:55:120
2771099919,44cyclictest9093-21grep19:35:570
27710999118,25cyclictest28777-21munin-node18:29:560
27710999113,59cyclictest14140-21df_inode20:05:260
27710999113,23cyclictest1256-21/usr/sbin/munin18:55:370
27710999110,60cyclictest31756-21grep18:41:030
27710999110,21cyclictest29776-21grep18:31:120
2771099907,65cyclictest30335-21df18:35:260
27710999016,35cyclictest5142-21df_inode19:15:270
27710999013,60cyclictest13185-21df20:00:240
2771099899,61cyclictest11002-21head19:46:020
27710998914,38cyclictest4759-21munin-run19:14:500
27710998817,55cyclictest0-21swapper19:20:040
27710998717,23cyclictest3332-21df_inode19:05:260
27710998717,23cyclictest2465-21fw_conntrack19:00:350
27710998711,26cyclictest7657-21/usr/sbin/munin19:30:140
27710998710,26cyclictest353-21/usr/sbin/munin18:50:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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