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2022-06-27 - 17:48

x86 Intel Xeon E3-1220L V2 @2300 MHz, Linux 4.18.7-rt5 (Profile)

Latency plot of system in rack #0, slot #1
Data to construct the above plot have been generated using the RT test utility cyclictest.
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 rack0slot1.osadl.org (updated Mon Jun 27, 2022 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
300652730,0sleep20-21swapper/207:40:212
52262700,0sleep60-21swapper/608:02:206
228142680,1sleep668-21rcuc/608:49:386
57962640,1sleep2331ktimersoftd/209:26:512
245142640,0sleep2331ktimersoftd/209:47:262
161102610,0sleep10-21swapper/110:24:501
172972550,0sleep00-21swapper/009:17:200
2194524822,7sleep10-21swapper/106:59:111
2169024719,7sleep40-21swapper/406:58:504
323252460,0sleep70-21swapper/710:04:217
2068924520,10sleep00-21swapper/006:57:500
26705994138,2cyclictest24843-21check_snmp08:51:245
26704994139,1cyclictest30636-21sshd10:31:204
26704994038,1cyclictest52-21ksoftirqd/408:51:244
2386723817,16sleep70-21swapper/707:00:297
26709993734,2cyclictest79-21ksoftirqd/708:51:247
26708993735,1cyclictest70-21ksoftirqd/610:31:206
26699993734,2cyclictest34-21ksoftirqd/210:31:202
2068023724,7sleep60-21swapper/606:57:486
26704993634,1cyclictest52-21ksoftirqd/407:40:264
26698993634,1cyclictest23-21rcuc/108:51:241
2547023622,8sleep20-21swapper/207:01:362
2171323623,7sleep30-21swapper/306:58:573
26704993533,1cyclictest52-21ksoftirqd/409:21:344
26698993432,1cyclictest25-21ksoftirqd/110:31:201
2169523421,7sleep50-21swapper/506:58:515
26708993330,2cyclictest70-21ksoftirqd/610:26:226
26699993330,2cyclictest34-21ksoftirqd/208:51:242
26703993129,1cyclictest43-21ksoftirqd/310:31:203
2670999280,15cyclictest0-21swapper/709:27:187
26698992826,1cyclictest25-21ksoftirqd/112:16:221
26698992826,1cyclictest25-21ksoftirqd/112:16:221
26708992724,2cyclictest70-21ksoftirqd/610:36:116
26697992724,2cyclictest9-21ksoftirqd/010:31:200
26705992624,1cyclictest61-21ksoftirqd/510:31:205
26704992624,1cyclictest0-21swapper/407:18:004
26704992616,6cyclictest0-21swapper/411:46:474
26699992623,2cyclictest34-21ksoftirqd/209:21:342
26708992523,1cyclictest70-21ksoftirqd/607:40:266
26708992522,2cyclictest70-21ksoftirqd/609:21:346
26704992523,1cyclictest52-21ksoftirqd/410:26:224
26704992515,6cyclictest50-21rcuc/407:16:344
2670999240,1cyclictest0-21swapper/708:10:007
2670999240,1cyclictest0-21swapper/708:10:007
26704992422,1cyclictest52-21ksoftirqd/412:17:114
26704992419,4cyclictest52-21ksoftirqd/408:44:374
173762240,1sleep317358-21snmp_nas.osadl.11:47:113
2670999230,10cyclictest0-21swapper/709:08:407
26704992321,1cyclictest52-21ksoftirqd/411:41:344
26698992312,1cyclictest23-21rcuc/107:35:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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