How JRebel for Android does performance testing

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How JRebel for Android Does Performance Testing Madis Pink

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JRebel for Android

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(relatively) long-running tasks >500ms

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Is the app fast?

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Is the app fast enough?

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Is this version faster than that version?

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Is this version slower than that version?

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Is this version slower than that version? Benchmarking!

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Added the foo feature to thingamajig, set foo=true in the debug settings to enable it. ...

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Added the foo feature to thingamajig, set foo=true in the debug settings to enable it. ...oh, also made the app startup two seconds slower

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Automation We need:

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Automation We need: → A harness to run the tests

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Automation We need: → A harness to run the tests → Pinpoint speciﬁc commits

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Automation We need: → A harness to run the tests → Pinpoint speciﬁc commits → Make regressions noticeable

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Consistent Results Detecting regressions quickly

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8000ms -> 8800ms regression error: +/- 2000ms

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8000ms -> 8800ms regression error: +/- 200ms

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Consistent Results - Nexus 5

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Consistent Results - Nexus 5

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Thermal Throttling

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Consistent Results - Emulator

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Consistent Results - Emulator

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Consistent Results - Emulator

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Analyzing Results

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Kibana (ELK)

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Kibana (ELK) → Elasticsearch (stores)

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Kibana (ELK) → Elasticsearch (stores) → Logstash (receives)

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Kibana (ELK) → Elasticsearch (stores) → Logstash (receives) → Kibana (displays)

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Logstash input { http { port => 1138 } } output { elasticsearch { hosts => ["localhost"] } }

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Logstash $ curl -XPUT 'http://127.0.0.1:1138' \ -H "content-type: application/json" \ -d '{ "version": "1.3.2", "test": "someTest", "timeMillis": 503 }'

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Logstash class PerfTestResult { String version; String test; long timeMillis; }

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Logstash /** * Simple Retrofit REST endpoint that * can send test results to logstash */ interface LogstashReporter { @PUT("/") @Headers("Content-Type: application/json") Call reportResult(@Body PerfTestResult result); }

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Kibana (demo)

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github.com/madisp/ perftesting-sample

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Kibana A few usecases

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A few usecases

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Testing speciﬁc ﬂags

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Detecting Regressions Early

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Fix veriﬁcation

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Improvements in Infrastructure :)

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Long-Term Historical Data

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Long-Term Historical Data

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Long-Term Historical Data

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Long-Term Historical Data

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Long-Term Historical Data

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Long-Term Historical Data

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Long-Term Historical Data

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//TODO

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? @madisp speakerdeck.com/madisp

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Images Used

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Images Used → SMBC, The superhero we need, http://smbc-comics.com/comic/ the-superhero-we-need

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Images Used → SMBC, The superhero we need, http://smbc-comics.com/comic/ the-superhero-we-need → JRebel for Android logo, http://jrebelforandroid.com

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Images Used → SMBC, The superhero we need, http://smbc-comics.com/comic/ the-superhero-we-need → JRebel for Android logo, http://jrebelforandroid.com → PBF comics, beach, http://pbfcomics.com/259/ → TF2 engineer wallpaper, http://frontierjustineer.tumblr.com/ → Gunshow comic, This is ﬁne, http://gunshowcomic.com/648 → Random switches on eBay, http://www.ebay.com/itm/Pilot- Universal-3-Row-Chrome-Safety-Cover-Toggle-Switch-w-Red- Indicator-Light-/371614043104