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2023-06-06 - 15:46

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 Tue Jun 06, 2023 12:44:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29431224112172,185sleep00-21swapper06:23:440
295859910632,57cyclictest2282-21open_inodes10:51:330
295859910435,51cyclictest0-21swapper10:09:190
295859910419,23cyclictest23038-21irqstats08:36:070
295859910320,45cyclictest12412-21ntp_states11:21:310
295859910233,51cyclictest0-21swapper08:47:440
295859910230,54cyclictest30175-21latency_hist08:59:540
295859910214,67cyclictest27599-21/usr/sbin/munin10:30:330
295859910117,67cyclictest0-21swapper08:41:350
295859910117,63cyclictest17241-21fw_conntrack11:35:570
295859910113,66cyclictest2235-21/usr/sbin/munin06:50:060
295859910112,69cyclictest2846-21cat09:15:320
295859910018,62cyclictest15520-21fw_conntrack11:30:560
295859910016,45cyclictest5747-21munin-run09:24:490
295859910015,65cyclictest16145-21fw_conntrack09:55:530
295859910013,50cyclictest13684-21ssh09:48:140
295859910013,25cyclictest16900-21sed08:10:360
295859910012,67cyclictest29673-21ssh10:36:270
29585999933,49cyclictest0-21swapper10:43:000
29585999918,60cyclictest26107-21fw_conntrack10:25:570
29585999918,39cyclictest4050-21apt-get07:00:090
29585999917,45cyclictest343-21irqstats10:46:040
29585999917,23cyclictest14562-21irqstats09:51:090
29585999917,23cyclictest10468-21fw_conntrack11:15:570
29585999915,24cyclictest21564-21ssh10:11:320
29585999914,66cyclictest11188-21fw_conntrack09:40:530
29585999913,28cyclictest32298-21missed_timers09:06:130
29585999913,26cyclictest20920-21sort08:29:530
29585999913,25cyclictest8739-21df_inode11:10:530
29585999910,27cyclictest8316-21ls09:31:320
29585999910,26cyclictest19805-21ssh11:43:190
2958599989,26cyclictest7098-21ssh09:28:140
29585999816,45cyclictest15068-21df08:00:250
29585999816,45cyclictest13716-21df11:25:390
29585999816,43cyclictest24361-21df10:20:430
29585999815,63cyclictest7305-21ntp_states11:06:240
29585999815,22cyclictest6553-21ssh11:04:520
29585999811,66cyclictest8025-21wc07:20:490
29585999734,42cyclictest21234-21ssh11:46:590
29585999716,43cyclictest3852-21memory10:56:170
29585999715,62cyclictest27540-21df08:50:360
29585999712,68cyclictest9968-21grep07:30:550
29585999615,60cyclictest22085-21ssh11:50:300
29585999612,24cyclictest9540-21fw_conntrack09:35:560
29585999611,21cyclictest22951-21ssh10:16:170
29585999515,61cyclictest12554-21memory07:45:550
29585999514,65cyclictest0-21swapper07:35:470
29585999512,43cyclictest17774-21ssh10:00:450
2958599948,63cyclictest22555-21wc08:34:580
29585999428,50cyclictest0-21swapper09:02:140
29585999419,55cyclictest1581-21ntp_states09:11:250
29585999413,26cyclictest13848-21tr07:54:480
29585999317,58cyclictest32199-21df06:35:250
29585999314,21cyclictest31878-21munin-run06:34:510
29585999312,39cyclictest15933-21wc08:05:220
29585999215,41cyclictest6637-21munin-run07:14:490
29585999213,60cyclictest11257-21/usr/sbin/munin07:40:420
29585999211,44cyclictest14598-21/usr/sbin/munin07:56:040
29585999114,57cyclictest6960-21df07:15:230
29585999110,64cyclictest18146-21find08:15:570
29585999110,43cyclictest18835-21sort08:20:420
29585998918,28cyclictest3424-21df_inode06:55:340
2958599889,24cyclictest647-21df_abs06:40:290
29585998817,22cyclictest4936-21/usr/sbin/munin07:05:530
29585998815,23cyclictest8538-21/usr/sbin/munin07:25:070
29585998810,57cyclictest30089-21memory06:25:470
29585998614,26cyclictest1784-21sshd06:45:510
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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