You are here: Home / Projects / QA Farm Realtime / Latency plots / 
2022-01-26 - 13:06

Intel(R) Celeron(R) CPU G1620 @ 2.70GHz, 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 Wed Jan 26, 2022 00:43:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1812899190,18cyclictest4644-21x2gosqlitewrapp23:15:020
1812999170,17cyclictest0-21swapper/123:37:221
1812999170,17cyclictest0-21swapper/100:33:121
18129991616,0cyclictest0-21swapper/121:49:521
18129991614,1cyclictest0-21swapper/122:32:111
1812999160,15cyclictest0-21swapper/121:44:351
18128991614,1cyclictest24583-21x2golistsession22:06:220
1812899160,1cyclictest0-21swapper/022:54:550
1812999150,15cyclictest0-21swapper/121:51:141
1812999150,15cyclictest0-21swapper/119:17:241
1812999150,14cyclictest0-21swapper/123:12:011
18128991515,0cyclictest0-21swapper/023:46:510
18128991514,1cyclictest0-21swapper/022:01:440
1812899150,0cyclictest0-21swapper/023:55:140
18129991414,0cyclictest0-21swapper/123:21:151
18129991414,0cyclictest0-21swapper/122:29:541
18129991414,0cyclictest0-21swapper/122:09:141
18129991414,0cyclictest0-21swapper/120:53:381
18129991412,1cyclictest0-21swapper/123:57:401
1812999140,13cyclictest632-21irqbalance22:24:511
1812999140,13cyclictest0-21swapper/121:23:221
18128991414,0cyclictest0-21swapper/023:38:510
18128991414,0cyclictest0-21swapper/021:49:120
18128991412,1cyclictest31106-21x2gosqlitewrapp00:35:120
18128991412,1cyclictest0-21swapper/021:43:320
1812899140,14cyclictest0-21swapper/019:40:140
1812899140,14cyclictest0-21swapper/000:31:110
1812999130,13cyclictest0-21swapper/123:53:411
1812999120,12cyclictest0-21swapper/122:45:311
1812999120,0cyclictest0-21swapper/123:25:511
18128991212,0cyclictest0-21swapper/022:23:440
1812999110,11cyclictest0-21swapper/121:02:321
1812899110,11cyclictest0-21swapper/023:42:010
1812899110,11cyclictest0-21swapper/021:24:520
1812899110,11cyclictest0-21swapper/000:24:210
1812899110,0cyclictest0-21swapper/022:11:220
1812999109,1cyclictest0-21swapper/122:15:221
18129991010,0cyclictest0-21swapper/122:40:511
1812999100,0cyclictest0-21swapper/123:49:391
1812899105,4cyclictest29525-21x2gosqlitewrapp19:26:400
1812899101,7cyclictest16208-21x2gosqlitewrapp23:25:160
18128991010,0cyclictest15619-21ssh21:30:220
18128991010,0cyclictest0-21swapper/022:30:240
181299999,0cyclictest0-21swapper/123:01:111
181299999,0cyclictest0-21swapper/121:36:251
181299999,0cyclictest0-21swapper/121:15:221
181299999,0cyclictest0-21swapper/120:13:391
181299995,3cyclictest8553-21ssh23:18:021
181299995,3cyclictest32148-21ssh00:06:461
181299995,3cyclictest30891-21ssh22:12:071
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional