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2023-02-07 - 18:26

ARM Broadcom BCM2711 @1500 MHz, Linux 5.10.52-rt47-v7l (Profile)

Latency plot of system in rack #4, 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 100, Linux 4.9.20-rt16, x86_64 highest latencies:
System rack4slot1.osadl.org (updated Tue Feb 07, 2023 07:45:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2344821470,2sleep2131rcu_preempt07:27:282
2344821470,2sleep2131rcu_preempt07:27:282
2538421030,1sleep012-21ksoftirqd/007:32:290
2538421030,1sleep012-21ksoftirqd/007:32:290
202302640,2chrt0-21swapper/207:21:252
202302640,2chrt0-21swapper/207:21:252
1662799473,33cyclictest681-21runrttasks07:42:130
1662799473,33cyclictest681-21runrttasks07:42:130
296252460,3sleep1211ksoftirqd/107:42:551
296252460,3sleep1211ksoftirqd/107:42:551
299902440,12sleep229989-21cron07:46:582
299902440,12sleep229989-21cron07:46:582
1662799341,22cyclictest0-21swapper/007:27:130
1662799341,22cyclictest0-21swapper/007:27:130
281952330,3sleep00-21swapper/007:42:050
176452320,2chrt0-21swapper/107:12:281
176452320,2chrt0-21swapper/107:12:281
192872300,3sleep30-21swapper/307:17:323
192872300,3sleep30-21swapper/307:17:323
1663099302,19cyclictest24425-21chrt07:32:153
1663099302,19cyclictest24425-21chrt07:32:153
16629992610,11cyclictest27-21ksoftirqd/207:37:302
1662799265,11cyclictest37650irq/56-eth007:12:120
1662799265,11cyclictest37650irq/56-eth007:12:120
1662799251,17cyclictest24564-21snmpd07:22:190
1662799251,17cyclictest24564-21snmpd07:22:190
16628992415,7cyclictest21-21ksoftirqd/107:27:141
16628992415,7cyclictest21-21ksoftirqd/107:27:141
1663099239,10cyclictest29700-21chrt07:43:413
1663099239,10cyclictest29700-21chrt07:43:413
1663099239,10cyclictest27721-21chrt07:39:113
16627992314,7cyclictest0-21swapper/007:17:190
16627992314,7cyclictest0-21swapper/007:17:190
1662999221,17cyclictest20882-21ls07:22:222
1662999221,17cyclictest20882-21ls07:22:222
1662999211,18cyclictest25366-21find07:32:292
1662999211,18cyclictest25366-21find07:32:292
16629992013,5cyclictest24564-21snmpd07:12:422
16629992013,5cyclictest24564-21snmpd07:12:422
16628992011,7cyclictest25553-21unixbench_multi07:32:301
16628992011,7cyclictest25553-21unixbench_multi07:32:301
193562190,3sleep10-21swapper/107:17:341
193562190,3sleep10-21swapper/107:17:341
1663099192,10cyclictest0-21swapper/307:27:153
1663099192,10cyclictest0-21swapper/307:27:153
1662899197,9cyclictest19335-21systemd-journal07:41:581
16628991911,5cyclictest20584-21runrttasks07:22:171
16628991911,5cyclictest20584-21runrttasks07:22:171
1663099186,10cyclictest18011-21chrt07:13:103
1663099186,10cyclictest18011-21chrt07:13:103
1663099185,10cyclictest21855-21chrt07:23:073
1663099185,10cyclictest21855-21chrt07:23:073
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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