You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2023-02-05 - 12:10

x86 Intel Celeron N3350 @1100 MHz, Linux 5.15.32-rt39 (Profile)

Latency plot of system in rack #6, slot #4
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by a total of 26370 SMIs that occured during the measurement.
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 --smi -q
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 50 highest latencies:
System rack6slot4.osadl.org (updated Sun Feb 05, 2023 00:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3101999334329,3cyclictest22658-21kworker/0:223:44:200
3101999325323,1cyclictest0-21swapper/021:40:220
3101999325316,6cyclictest7757-21diskmemload00:09:500
3101999323318,3cyclictest28214-21ssh00:26:420
31019993210,1cyclictest0-21swapper/020:54:370
3101999320317,2cyclictest3936-21kworker/0:200:30:210
3101999320317,2cyclictest0-21swapper/019:20:180
31019993200,318cyclictest0-21swapper/021:29:070
3101999319316,2cyclictest5651-21kworker/0:021:10:040
3101999318315,2cyclictest22658-21kworker/0:223:21:220
3101999318313,3cyclictest13948-21kworker/0:221:24:360
3101999317313,2cyclictest3936-21kworker/0:200:15:140
3101999317313,2cyclictest25794-21kworker/0:121:37:110
3101999317310,5cyclictest7757-21diskmemload23:05:030
3102099315310,3cyclictest5972-21kworker/1:121:45:231
3101999315313,1cyclictest0-21swapper/022:43:490
3101999315313,1cyclictest0-21swapper/021:45:040
3101999315311,2cyclictest22658-21kworker/0:223:26:270
3101999315310,3cyclictest19132-21kworker/0:122:58:150
3101999315309,4cyclictest14521-21sh23:01:290
3101999315308,4cyclictest7757-21diskmemload22:49:470
31019993150,1cyclictest0-21swapper/023:16:260
3101999314312,1cyclictest0-21swapper/022:31:200
3101999314312,1cyclictest0-21swapper/000:39:000
3101999314311,2cyclictest0-21swapper/021:18:590
3101999314311,2cyclictest0-21swapper/000:02:170
3101999314310,2cyclictest19132-21kworker/0:122:39:360
3101999314309,3cyclictest10523-21kworker/0:022:15:020
3101999313311,1cyclictest0-21swapper/021:05:120
3102099312307,3cyclictest23504-21kworker/1:100:18:361
3101999312309,2cyclictest0-21swapper/023:59:500
3101999312307,3cyclictest16921-21sh21:54:540
3101999312303,6cyclictest17286-21apt-get21:55:120
3102099311304,6cyclictest23504-21kworker/1:100:10:161
3101999311308,2cyclictest0-21swapper/023:53:070
3101999311307,2cyclictest10523-21kworker/0:022:11:150
3102099310307,2cyclictest4951-21kworker/1:123:26:291
3101999310307,2cyclictest29499-21ssh22:08:040
3101999310307,2cyclictest0-21swapper/021:33:510
31019993100,307cyclictest25144-21sh22:03:250
3101999309307,1cyclictest0-21swapper/022:24:480
3101999309305,2cyclictest9534-21kworker/0:322:28:090
3101999309305,2cyclictest9534-21kworker/0:322:28:090
3102099308305,2cyclictest1352-21kworker/1:000:35:201
3102099308295,11cyclictest15828-21kworker/1:221:54:401
3101999307305,1cyclictest0-21swapper/000:21:470
3101999307302,3cyclictest30140-21cstates20:40:130
3102099306301,3cyclictest12031-21kworker/1:223:01:261
3101999306304,1cyclictest0-21swapper/020:02:470
3101999306304,1cyclictest0-21swapper/019:33:490
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional