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2023-04-02 - 03:51

x86 Intel Celeron G3900 @2800 MHz, Linux 4.16.15-rt7 (Profile)

Latency plot of system in rack #c, slot #2
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h200 -q
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 376 highest latencies:
System rackcslot2.osadl.org (updated Sun Apr 02, 2023 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
88182730,1sleep0596-21lldpd20:27:590
218402550,0sleep00-21swapper/022:31:330
12282550,3sleep01012499cyclictest22:47:560
233212470,0sleep00-21swapper/022:33:040
10125991716,0cyclictest15965-21ssh23:07:491
10124991710,1cyclictest0-21swapper/021:17:490
10125991614,1cyclictest26604-21mailstats19:48:071
10124991615,1cyclictest20449-21ssh23:57:560
10124991615,0cyclictest7065-21sh22:55:100
79912150,1sleep1596-21lldpd23:40:111
10125991513,1cyclictest243662sleep122:34:091
10125991511,3cyclictest1544-21kworker/1:021:06:121
10124991515,0cyclictest32604-21ssh00:14:140
10124991514,1cyclictest6290-21ssh22:09:580
10124991514,0cyclictest25140-21ssh23:19:140
10125991414,0cyclictest0-21swapper/122:41:411
10125991412,1cyclictest730-21snmpd23:52:471
10125991412,1cyclictest730-21snmpd22:57:521
10125991412,1cyclictest730-21snmpd22:23:331
10125991412,1cyclictest730-21snmpd22:03:081
10125991412,1cyclictest730-21snmpd21:52:231
10125991412,1cyclictest730-21snmpd00:30:051
10125991412,1cyclictest730-21snmpd00:18:101
10125991412,1cyclictest11691-21ls20:33:101
10125991412,1cyclictest0-21swapper/122:20:031
10125991411,2cyclictest1544-21kworker/1:020:15:481
10124991412,2cyclictest20628-21kworker/0:219:23:430
10124991412,1cyclictest9945-21/usr/sbin/munin00:28:060
10124991412,1cyclictest93750irq/100-eth0-rx22:05:370
10124991412,1cyclictest13721-21apache221:30:350
10124991412,1cyclictest13721-21apache200:33:110
10124991410,4cyclictest0-21swapper/023:55:540
10124991410,3cyclictest26642-21kworker/u4:123:41:540
10124991410,3cyclictest0-21swapper/023:01:500
10124991410,3cyclictest0-21swapper/021:11:010
10124991410,3cyclictest0-21swapper/020:21:120
10124991410,3cyclictest0-21swapper/019:42:480
10124991410,3cyclictest0-21swapper/019:20:040
10124991410,0cyclictest0-21swapper/023:15:580
10124991410,0cyclictest0-21swapper/022:47:220
10125991313,0cyclictest6810-21ssh21:27:511
10125991312,1cyclictest730-21snmpd22:53:341
10125991312,1cyclictest730-21snmpd22:13:371
10125991312,1cyclictest730-21snmpd22:10:221
10125991312,1cyclictest730-21snmpd21:38:001
10125991312,1cyclictest730-21snmpd00:03:081
10125991312,0cyclictest20346-21chrt23:57:421
10125991311,2cyclictest730-21snmpd20:48:061
10125991311,1cyclictest93950irq/102-eth0-tx23:03:551
10125991311,1cyclictest93750irq/100-eth0-rx23:47:501
10125991311,1cyclictest93750irq/100-eth0-rx21:42:531
10125991311,1cyclictest798-21apache219:22:031
10125991311,1cyclictest730-21snmpd23:43:381
10125991311,1cyclictest730-21snmpd22:48:401
10125991311,1cyclictest730-21snmpd22:42:461
10125991311,1cyclictest730-21snmpd21:53:281
10125991311,1cyclictest730-21snmpd21:22:411
10125991311,1cyclictest730-21snmpd20:53:151
10125991311,1cyclictest730-21snmpd20:44:411
10125991311,1cyclictest730-21snmpd20:37:471
10125991311,1cyclictest730-21snmpd20:17:451
10125991311,1cyclictest730-21snmpd19:52:481
10125991311,1cyclictest730-21snmpd19:27:421
10125991311,1cyclictest730-21snmpd19:07:411
10125991311,1cyclictest596-21lldpd00:09:361
10125991311,1cyclictest13747-21apache220:30:491
10125991311,1cyclictest13721-21apache223:27:511
10125991311,1cyclictest13721-21apache223:17:561
10125991311,1cyclictest13721-21apache219:33:321
10125991311,1cyclictest0-21swapper/119:12:531
10125991311,1cyclictest0-21swapper/100:23:311
10125991310,2cyclictest730-21snmpd23:32:471
10125991310,2cyclictest730-21snmpd19:38:071
10125991310,2cyclictest0-21swapper/123:22:491
10125991310,2cyclictest0-21swapper/123:13:421
10125991310,2cyclictest0-21swapper/122:27:421
10125991310,2cyclictest0-21swapper/121:59:261
10125991310,2cyclictest0-21swapper/121:17:431
10125991310,2cyclictest0-21swapper/120:57:561
10125991310,2cyclictest0-21swapper/120:24:021
10125991310,2cyclictest0-21swapper/120:02:511
10125991310,2cyclictest0-21swapper/119:22:431
10125991310,2cyclictest0-21swapper/100:33:061
10125991310,2cyclictest0-21swapper/100:13:261
10125991310,1cyclictest730-21snmpd21:07:511
10125991310,1cyclictest0-21swapper/121:34:071
10125991310,1cyclictest0-21swapper/121:12:491
10125991310,1cyclictest0-21swapper/120:09:171
10124991312,1cyclictest730-21snmpd00:24:160
10124991311,1cyclictest93750irq/100-eth0-rx23:03:170
10124991311,1cyclictest93750irq/100-eth0-rx00:18:160
10124991311,1cyclictest730-21snmpd21:39:080
10124991311,1cyclictest730-21snmpd21:33:060
10124991311,1cyclictest730-21snmpd21:24:100
10124991311,1cyclictest730-21snmpd20:08:090
10124991311,1cyclictest730-21snmpd19:54:150
10124991311,1cyclictest23863-21diskmemload22:12:500
10124991311,1cyclictest14712-21kworker/u4:023:28:150
10124991311,1cyclictest13747-21apache220:03:040
10124991311,1cyclictest13721-21apache222:25:510
10124991311,1cyclictest13721-21apache222:02:360
10124991311,1cyclictest13721-21apache220:55:520
10124991311,1cyclictest13721-21apache219:37:520
10124991311,1cyclictest13721-21apache219:33:360
10124991311,1cyclictest10122-21cyclictest20:33:000
10124991311,1cyclictest0-21swapper/023:07:430
10124991311,1cyclictest0-21swapper/021:52:480
10124991310,3cyclictest21970-21apt-get21:02:410
10124991310,2cyclictest730-21snmpd23:22:580
10124991310,2cyclictest730-21snmpd20:46:490
10124991310,2cyclictest0-21swapper/023:33:300
10124991310,2cyclictest0-21swapper/021:50:480
10124991310,2cyclictest0-21swapper/021:13:480
10124991310,2cyclictest0-21swapper/020:48:440
10124991310,2cyclictest0-21swapper/020:38:150
10124991310,2cyclictest0-21swapper/020:24:120
10124991310,2cyclictest0-21swapper/019:51:090
10124991310,2cyclictest0-21swapper/019:08:270
10124991310,2cyclictest0-21swapper/000:07:540
10124991310,0cyclictest0-21swapper/023:42:480
10124991310,0cyclictest0-21swapper/022:40:100
10124991310,0cyclictest0-21swapper/021:03:070
10124991310,0cyclictest0-21swapper/020:14:000
10124991310,0cyclictest0-21swapper/019:58:000
10124991310,0cyclictest0-21swapper/019:29:240
10124991310,0cyclictest0-21swapper/019:13:120
10125991210,1cyclictest730-21snmpd19:57:421
10125991210,1cyclictest0-21swapper/119:42:411
10124991211,0cyclictest0-21swapper/000:02:410
10124991210,1cyclictest93750irq/100-eth0-rx22:17:460
10124991210,1cyclictest0-21swapper/023:47:410
10124991210,1cyclictest0-21swapper/021:42:420
8987241,1sleep10-21swapper/119:03:051
8185241,1sleep00-21swapper/019:02:480
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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