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2023-01-29 - 16:35

x86 Intel Celeron G3900 @2800 MHz, Linux 5.10.35-rt39 (Profile)

Latency plot of system in rack #c, slot #5
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: performance
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rackcslot5.osadl.org (updated Sun Jan 29, 2023 12:43:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
996799300,29cyclictest20906-21meminfo10:20:211
996699280,27cyclictest24027-21meminfo09:05:210
996799240,23cyclictest10650-21meminfo07:10:221
996799230,22cyclictest16993-21meminfo10:10:201
996699230,23cyclictest22080-21meminfo09:00:220
996699230,22cyclictest25151-21meminfo07:45:180
996799220,21cyclictest4127-21meminfo11:00:231
996799220,21cyclictest19070-21meminfo07:30:231
996699220,21cyclictest21676-21meminfo11:45:220
996799210,21cyclictest10382-21meminfo08:30:261
996799210,20cyclictest18934-21meminfo10:15:201
996699210,20cyclictest30654-21meminfo10:45:220
996799200,19cyclictest5296-21meminfo09:40:191
996699200,19cyclictest7242-21meminfo09:45:220
996799190,19cyclictest16229-21meminfo08:45:211
996699190,19cyclictest31418-21meminfo12:10:200
996699190,18cyclictest17771-21meminfo11:35:240
996799180,17cyclictest9188-21meminfo09:50:201
996699180,18cyclictest22854-21meminfo10:25:250
996699180,17cyclictest29480-21meminfo12:05:220
996799170,17cyclictest12322-21meminfo08:35:211
996799170,16cyclictest6482-21meminfo08:20:191
996699175,5cyclictest25147-21diskmemload09:50:260
996699170,17cyclictest4902-21meminfo12:25:260
996699170,17cyclictest3335-21meminfo09:35:200
77562170,0sleep00-21swapper/012:32:580
996799160,16cyclictest2169-21meminfo10:55:291
996699160,16cyclictest19730-21meminfo11:40:210
996699160,15cyclictest8008-21meminfo11:10:200
996799152,11cyclictest31178-21/usr/sbin/munin09:25:311
996799150,15cyclictest25575-21meminfo11:55:241
996799150,14cyclictest6838-21meminfo12:30:211
996699159,6cyclictest10720-21tune2fs09:55:210
996699153,8cyclictest15170-21apt-get11:30:170
996699151,13cyclictest2577-21memory08:10:210
996699150,15cyclictest20119-21meminfo08:55:260
996699150,14cyclictest27161-21meminfo07:50:190
996699150,14cyclictest26746-21meminfo10:35:200
996799142,8cyclictest4578-21latency_hist09:40:001
996799140,4cyclictest0-21swapper/110:05:311
996799140,14cyclictest29881-21meminfo09:20:201
996799140,14cyclictest18176-21meminfo08:50:241
996799140,13cyclictest8430-21meminfo08:25:251
996699144,8cyclictest26352-21/usr/sbin/munin09:10:260
996699140,14cyclictest9963-21meminfo11:15:240
996699140,14cyclictest10383-21meminfo08:30:250
996699140,13cyclictest29109-21meminfo07:55:240
996699140,13cyclictest17124-21meminfo07:25:250
996799138,4cyclictest0-21swapper/111:20:091
996799135,7cyclictest32356-21apt-get08:05:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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