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2022-06-30 - 17:50

x86 Intel Atom E3845 @1915 MHz, Linux 4.19.37-rt20 (Profile)

Latency plot of system in rack #b, slot #6
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 100, Linux 4.9.20-rt16, x86_64 highest latencies:
System rackbslot6.osadl.org (updated Thu Jun 30, 2022 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1452221780,4sleep01645799cyclictest14:33:150
2836421650,4sleep21646999cyclictest09:58:372
1692221500,3sleep21646999cyclictest11:44:372
911911070,4ptp4l401ktimersoftd/309:37:263
911911070,4ptp4l401ktimersoftd/309:37:263
206972740,3sleep30-21swapper/312:23:283
194072630,4sleep01645799cyclictest11:48:240
1645799637,26cyclictest12486-21irqrtprio12:48:310
318512620,3sleep0111rcuc/013:08:350
162682584,43sleep00-21swapper/009:36:590
162682584,43sleep00-21swapper/009:36:590
289212560,2sleep10-21swapper/113:38:591
16462995039,6cyclictest25-21ksoftirqd/114:48:271
1647399495,16cyclictest18416-21/usr/sbin/munin10:48:383
1647399478,7cyclictest21057-21sh14:38:413
1645799470,37cyclictest9465-21diskmemload13:31:200
1647399465,8cyclictest25812-21cut12:28:303
16469994637,4cyclictest33-21ksoftirqd/213:28:242
16469994536,4cyclictest33-21ksoftirqd/213:53:262
1645799453,36cyclictest0-21swapper/014:03:270
1645799453,35cyclictest0-21swapper/013:38:260
16462994431,8cyclictest25-21ksoftirqd/114:33:281
1645799442,32cyclictest15495-21ssh12:18:230
1647399432,8cyclictest20860-21awk12:58:133
1647399422,8cyclictest13502-21cut13:58:143
91191410,1ptp4l401ktimersoftd/311:40:573
91191410,1ptp4l401ktimersoftd/310:33:233
1645799411,34cyclictest0-21swapper/012:08:240
1645799410,3cyclictest9477-21awk11:38:110
91191400,1ptp4l401ktimersoftd/314:29:313
91191400,1ptp4l401ktimersoftd/313:18:243
91191400,1ptp4l401ktimersoftd/311:56:123
1645799402,32cyclictest0-21swapper/014:58:290
16457994014,23cyclictest32041-21sh13:43:300
1645799401,33cyclictest0-21swapper/015:03:260
1645799400,4cyclictest24891-21sed10:58:380
91191390,1ptp4l401ktimersoftd/314:59:103
91191390,1ptp4l401ktimersoftd/314:56:183
91191390,1ptp4l401ktimersoftd/314:49:053
91191390,1ptp4l401ktimersoftd/313:09:133
91191390,1ptp4l401ktimersoftd/311:44:303
91191390,0ptp4l401ktimersoftd/315:03:523
1647399392,6cyclictest27907-21/usr/sbin/munin11:08:243
1647399392,6cyclictest27907-21/usr/sbin/munin11:08:243
1645799393,5cyclictest14955-21apt-get14:33:280
1645799392,6cyclictest24452-21apt-get14:43:270
1645799392,32cyclictest0-21swapper/014:23:270
1645799390,4cyclictest6603-21cut10:23:260
1645799390,4cyclictest30094-21phc2sys11:58:360
91191380,1ptp4l401ktimersoftd/314:26:393
91191380,1ptp4l401ktimersoftd/313:50:453
91191380,1ptp4l401ktimersoftd/313:47:033
91191380,1ptp4l401ktimersoftd/313:00:213
91191380,1ptp4l401ktimersoftd/312:48:483
91191380,1ptp4l401ktimersoftd/312:12:403
91191380,1ptp4l401ktimersoftd/311:51:383
91191380,1ptp4l401ktimersoftd/310:40:473
91191380,0ptp4l401ktimersoftd/314:04:493
91191380,0ptp4l401ktimersoftd/313:34:313
91191380,0ptp4l401ktimersoftd/311:23:393
1647399383,6cyclictest41-21ksoftirqd/314:03:113
1647399383,6cyclictest41-21ksoftirqd/314:03:113
16469993827,5cyclictest33-21ksoftirqd/213:33:242
1645799389,25cyclictest25970-21/usr/sbin/munin11:53:450
1645799383,29cyclictest0-21swapper/010:28:200
1645799382,6cyclictest3941-21apt-get10:18:210
1645799382,5cyclictest28276-21ssh14:13:260
1645799382,5cyclictest28276-21ssh14:13:260
1645799382,31cyclictest0-21swapper/009:48:210
1645799382,30cyclictest0-21swapper/013:23:240
1645799381,4cyclictest29257-21apt-get14:48:270
16457993813,22cyclictest12214-21cron13:23:140
16457993812,22cyclictest5823-21cat13:48:420
16457993811,23cyclictest2563-21ptp4l-jitter12:03:360
16457993810,24cyclictest3112-21bc13:13:240
16457993810,24cyclictest27896-21cat14:13:150
16457993810,24cyclictest27896-21cat14:13:150
1645799380,4cyclictest23345-21phc2sys13:33:340
1645799380,4cyclictest18277-21latency_hist14:03:150
1645799380,4cyclictest18277-21latency_hist14:03:150
1645799380,4cyclictest13521-21sed13:58:140
1645799380,3cyclictest2135-21fschecks_time14:53:320
91191370,1ptp4l401ktimersoftd/314:46:243
91191370,1ptp4l401ktimersoftd/314:17:023
91191370,1ptp4l401ktimersoftd/314:17:023
91191370,1ptp4l401ktimersoftd/314:11:133
91191370,1ptp4l401ktimersoftd/314:11:133
91191370,1ptp4l401ktimersoftd/313:31:563
91191370,1ptp4l401ktimersoftd/313:25:553
91191370,1ptp4l401ktimersoftd/313:05:343
91191370,1ptp4l401ktimersoftd/312:46:233
91191370,1ptp4l401ktimersoftd/312:41:123
91191370,1ptp4l401ktimersoftd/312:41:123
91191370,1ptp4l401ktimersoftd/312:04:573
91191370,0ptp4l401ktimersoftd/312:37:433
91191370,0ptp4l401ktimersoftd/312:00:203
91191370,0ptp4l401ktimersoftd/310:00:243
1647399372,7cyclictest41-21ksoftirqd/309:48:383
1645799378,25cyclictest739-21gltestperf11:18:270
1645799372,30cyclictest0-21swapper/014:18:260
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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