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2022-12-02 - 00:15

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 Thu Dec 01, 2022 00:44:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16136223992164,183sleep00-21swapper18:30:300
165569917218,25cyclictest26901-21apt-get21:49:410
165569916620,41cyclictest17525-21apt-get21:19:210
165569916533,32cyclictest0-21swapper21:57:230
165569916420,48cyclictest1642-21munin-run20:24:010
165569916416,47cyclictest14891-21ssh21:07:490
165569916412,59cyclictest29517-21apt-get23:49:170
165569916317,23cyclictest10381-21/usr/sbin/munin22:45:580
165569916134,35cyclictest11231-21unixbench_singl20:56:110
165569916129,38cyclictest7422-1kworker/u3:122:51:360
165569916117,20cyclictest5824-21fw_conntrack20:41:040
165569916115,25cyclictest24852-21/usr/sbin/munin23:34:310
165569916114,21cyclictest28735-21wc23:45:370
165569916110,31cyclictest964-21/usr/sbin/munin22:15:450
165569916041,21cyclictest8852-21sh22:40:420
165569916040,23cyclictest32270-21switchtime20:03:540
165569916032,17cyclictest0-21swapper23:16:200
165569916017,39cyclictest4558-21apt-get22:25:550
165569916017,20cyclictest5958-21users22:29:200
165569916016,23cyclictest4287-21df_inode20:36:490
165569916015,58cyclictest17987-21munin-run23:14:000
165569915939,23cyclictest548-21sh22:12:340
165569915926,34cyclictest0-21swapper21:14:160
165569915917,37cyclictest15222-21munin-run23:04:000
165569915917,24cyclictest1104-21ssh00:01:110
165569915916,41cyclictest13446-21munin-run21:04:010
165569915915,25cyclictest25461-21ssh21:45:440
165569915914,58cyclictest26808-21memory23:40:210
165569915912,28cyclictest20825-21wc21:29:080
165569915829,20cyclictest2696-21/usr/sbin/munin22:22:530
165569915718,57cyclictest0-21swapper23:28:550
165569915715,23cyclictest7175-21/usr/sbin/munin20:45:230
165569915530,30cyclictest0-21swapper23:23:130
165569915516,24cyclictest10038-21ssh20:53:330
165569915513,53cyclictest22442-21memory21:35:370
165569915513,26cyclictest23839-21ssh21:40:450
165569915414,25cyclictest31165-21memory19:56:000
165569915412,57cyclictest31385-21df22:04:300
165569915320,30cyclictest7746-21df_inode22:37:300
165569915216,41cyclictest30512-21users19:48:310
165569915216,23cyclictest22959-21memory19:05:290
165569915215,23cyclictest23720-21df_inode19:10:130
165569915117,47cyclictest3410-21grep20:33:120
165569915114,49cyclictest28856-21/usr/sbin/munin19:41:190
165569915111,50cyclictest13902-21ssh22:59:060
165569915111,47cyclictest22503-21cut19:04:030
165569915039,21cyclictest18189-21cpu18:39:460
165569915020,37cyclictest25094-21users19:15:180
165569915016,44cyclictest16367-21munin-run21:14:010
165569915011,40cyclictest32432-21sh23:58:470
16556991499,49cyclictest21325-21/usr/sbin/munin18:55:110
165569914913,23cyclictest30290-21ssh22:00:050
165569914910,47cyclictest23399-21sed23:29:500
165569914818,38cyclictest32548-21users20:04:300
165569914816,47cyclictest26127-21wc19:24:040
165569914816,46cyclictest19231-21df_inode18:44:500
165569914815,45cyclictest20982-21ssh21:29:550
165569914813,23cyclictest17161-21/usr/sbin/munin18:35:150
165569914810,24cyclictest623-21cat20:14:010
165569914717,47cyclictest26354-21df19:25:160
165569914717,46cyclictest1927-21cpu20:25:560
165569914711,22cyclictest15525-21ssh23:04:370
165569914710,25cyclictest28223-21/usr/sbin/munin19:36:220
165569914610,23cyclictest20340-21awk18:49:580
165569914518,43cyclictest27253-21df19:29:380
165569914510,48cyclictest30646-21sshd19:52:280
16556998615,20cyclictest24160-21lldpd20:16:440
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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