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2023-05-28 - 19:21

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 Sun May 28, 2023 12:44:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2544225800,12sleep01204-1kworker/u3:206:24:060
27059910735,22cyclictest17631-21ntpq09:41:490
27059910417,46cyclictest22207-21memory11:31:440
27059910318,62cyclictest14669-21ssh09:32:360
27059910219,42cyclictest3514-21fw_conntrack10:36:230
27059910219,24cyclictest29534-21df_inode08:41:120
27059910218,62cyclictest28668-21munin-run10:15:160
27059910217,64cyclictest28456-21ssh08:37:170
27059910217,23cyclictest18833-21memory11:21:390
27059910214,25cyclictest23932-21ssh10:01:000
27059910118,46cyclictest17165-21memory11:16:470
27059910118,21cyclictest5273-21irqstats10:41:360
27059910115,65cyclictest10965-21irqstats07:11:020
27059910114,66cyclictest25434-21apt-get10:05:490
27059910113,69cyclictest1667-21ssh10:31:020
27059910112,49cyclictest7246-21grep06:50:510
27059910111,26cyclictest13438-21ssh09:30:010
27059910033,49cyclictest0-21swapper08:00:330
27059910017,61cyclictest28954-21memory11:51:440
27059910016,64cyclictest32498-21ssh08:50:220
2705999915,35cyclictest10526-21df09:21:040
2705999915,23cyclictest15862-21memory09:36:400
2705999914,64cyclictest2448-21/usr/sbin/munin08:56:550
2705999912,38cyclictest20718-21ssh11:26:590
2705999911,69cyclictest537-21ssh08:51:320
2705999911,49cyclictest14238-21ssh11:07:260
270599989,48cyclictest20725-21wc08:05:500
270599989,28cyclictest10406-21ssh10:56:390
2705999841,39cyclictest19347-21open_files09:46:580
2705999831,50cyclictest0-21swapper11:48:110
2705999817,21cyclictest25723-21ssh08:30:200
2705999816,23cyclictest8557-21/usr/sbin/munin10:51:190
2705999814,22cyclictest21949-21ssh09:55:190
2705999812,26cyclictest27272-21ssh08:34:550
2705999810,26cyclictest1057-21ssh10:29:120
2705999730,52cyclictest0-21swapper09:03:410
2705999715,51cyclictest0-21swapper11:44:390
2705999713,22cyclictest29077-21snmpd10:15:300
2705999617,37cyclictest24328-21users11:37:160
2705999616,44cyclictest10124-21munin-run09:20:170
2705999612,47cyclictest15314-21ssh11:11:240
2705999612,43cyclictest6884-21fw_conntrack10:46:260
2705999518,28cyclictest5177-21apt-get09:05:410
2705999517,40cyclictest13805-21ntp_states07:26:180
2705999516,58cyclictest22339-21df09:56:030
2705999516,37cyclictest11938-21fw_conntrack11:01:210
2705999513,23cyclictest4548-21df06:35:480
2705999510,48cyclictest30506-21/usr/sbin/munin10:21:370
2705999413,62cyclictest7698-21cat09:12:020
2705999313,57cyclictest11640-21/usr/sbin/munin07:15:430
270599929,45cyclictest15032-21latency_hist07:35:150
2705999219,23cyclictest9047-21df07:00:530
2705999217,20cyclictest18596-21users07:51:390
2705999216,56cyclictest9937-21df07:05:480
2705999215,59cyclictest3765-21munin-node06:30:240
2705999215,56cyclictest16809-21users07:41:310
2705999211,58cyclictest17124-21wc07:45:470
270599919,63cyclictest19128-21sort07:56:130
270599919,59cyclictest8128-21wc06:55:510
2705999010,41cyclictest5430-21sshd06:40:480
2705998936,23cyclictest22422-21aten_r5power_po08:15:480
2705998916,24cyclictest21774-21/usr/sbin/munin08:11:020
2705998815,25cyclictest15357-21df07:35:480
2705998813,55cyclictest4174-21irqstats06:30:470
2705998734,37cyclictest6659-21ps06:46:240
2705998711,56cyclictest12497-21grep07:20:440
2705998711,25cyclictest24113-21ssh08:25:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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