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2022-06-27 - 17:49

x86 Intel Celeron G1620 @2700 MHz, Linux 5.10.35-rt39 (Profile)

Latency plot of system in rack #8, slot #7
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 -h400 -q
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: ondemand
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack8slot7.osadl.org (updated Mon Jun 27, 2022 12:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1633499213,17cyclictest2951-21awk08:35:220
1633599190,18cyclictest18105-21cat10:30:221
16334991915,3cyclictest27135-21ssh11:05:440
1633499170,1cyclictest0-21swapper/009:15:230
16335991616,0cyclictest0-21swapper/112:18:231
1633599160,16cyclictest0-21swapper/109:41:251
1633599160,0cyclictest0-21swapper/110:43:411
16334991614,1cyclictest26448-21x2golistsession11:34:260
16334991613,2cyclictest26496-21x2gosqlitewrapp09:41:010
1633599150,2cyclictest25242-21x2golistsession10:08:521
1633599150,15cyclictest0-21swapper/111:12:321
1633599150,15cyclictest0-21swapper/109:39:071
1633599150,15cyclictest0-21swapper/109:27:251
1633599150,15cyclictest0-21swapper/109:13:511
1633599150,15cyclictest0-21swapper/107:44:261
16334991513,1cyclictest13476-21x2golistsession09:58:310
16335991414,0cyclictest0-21swapper/111:22:511
16335991412,1cyclictest20374-21x2golistsession11:56:201
1633599140,0cyclictest0-21swapper/111:50:411
16334991414,0cyclictest0-21swapper/011:55:220
1633499140,14cyclictest0-21swapper/009:13:000
1633599130,13cyclictest0-21swapper/109:21:241
1633599130,12cyclictest21832-21diskmemload10:26:521
16334991313,0cyclictest0-21swapper/009:51:560
1633499130,13cyclictest0-21swapper/012:26:310
16335991212,0cyclictest0-21swapper/111:31:521
16335991212,0cyclictest0-21swapper/110:12:561
16335991212,0cyclictest0-21swapper/109:15:121
16335991212,0cyclictest0-21swapper/108:30:241
16335991210,1cyclictest19256-21munin-node12:35:021
16335991210,1cyclictest0-21swapper/111:08:561
16334991212,0cyclictest0-21swapper/007:48:560
1633499120,12cyclictest0-21swapper/011:46:320
1633499120,12cyclictest0-21swapper/011:42:010
1633499120,12cyclictest0-21swapper/008:59:020
1633499120,0cyclictest0-21swapper/007:31:220
16335991111,0cyclictest0-21swapper/110:21:261
1633599110,11cyclictest0-21swapper/111:26:521
1633599110,11cyclictest0-21swapper/111:03:311
1633499117,3cyclictest10601-21cron07:55:000
1633499111,9cyclictest2488-21x2gosqlitewrapp10:45:150
16334991111,0cyclictest0-21swapper/012:00:320
16334991111,0cyclictest0-21swapper/011:18:080
16334991111,0cyclictest0-21swapper/010:07:510
16334991111,0cyclictest0-21swapper/009:23:410
1633599106,3cyclictest18983-21x2gosqlitewrapp07:14:361
1633599103,1cyclictest131rcu_preempt12:07:381
1633599101,2cyclictest5785-21x2gosqlitewrapp11:44:381
1633599101,1cyclictest24862-21x2gosqlitewrapp12:29:181
16335991010,0cyclictest0-21swapper/107:51:521
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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