History

Tobias Bosch 2f87eb52fe feat(core): add initial view engine (#14014 )

The new view engine allows our codegen to produce less code,
as it can interpret view definitions during runtime.

The view engine is not feature complete yet, but already
allows to implement a tree benchmark based on it.

Part of #14013

2017-01-20 13:10:57 -08:00

index.html

feat(core): add initial view engine (#14014 )

2017-01-20 13:10:57 -08:00

index.ts

feat(core): add initial view engine (#14014 )

2017-01-20 13:10:57 -08:00

README.md

feat(core): add initial view engine (#14014 )

2017-01-20 13:10:57 -08:00

tree.ts

feat(core): add initial view engine (#14014 )

2017-01-20 13:10:57 -08:00

README.md

Ng2 Next Benchmark

This benchmark uses the upcoming view engine for Angular 2, which moves more functionality from codegen into runtime to reduce generated code size.

As we introduce more runtime code, we need to be very careful to not regress in performance, compared to the pure codegen solution.

Initial resuls: size of Deep Tree Benchmark

File size for Tree benchmark template, view class of the component + the 2 embedded view classes (without imports nor host view factory):

                           | bytes | ratio | bytes (gzip) | ratio (gzip)

------------------------------ | ----- | ----- | ------------ | ------------ Source template + annotation | 245 | 1x | 159 | 1x Gen code (Closure minified) | 2693 | 11.9x | 746 | 4.7x New View Engine (minified) | 868 | 3.5x | 436 | 2.7x

Initial results: performance of Deep Tree Benchmark

Measured locally on a MacBook Pro.

BENCHMARK deepTree.... Description:

bundles: false
depth: 11
forceGc: false
regressionSlopeMetric: scriptTime
sampleSize: 20
userAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.95 Safari/537.36

...createOnly	gcAmount	gcTime	majorGcTime	pureScriptTime	renderTime	scriptTime
ng2	11461.24+-21%	12.35+-42%	1.15+-429%	72.49+-4%	49.61+-4%	82.69+-6%
ng2 next	6207.77+-93%	9.84+-84%	3.35+-238%	73.95+-4%	49.86+-4%	77.53+-10%

...update	gcAmount	gcTime	majorGcTime	pureScriptTime	renderTime	scriptTime
ng2	0.00	0.00+-435%	0.00+-435%	13.34+-8%	28.55+-8%	13.34+-8%
ng2 next	175.02+-435%	0.74+-435%	0.00+-302%	20.55+-12%	28.00+-6%	20.55+-12%

...pure cd (10x)	gcAmount	gcTime	majorGcTime	pureScriptTime	renderTime	scriptTime
ng2	2155.57+-238%	0.24+-238%	0.00+-238%	19.32+-9%	2.54+-6%	19.32+-9%
ng2 next	908.12+-366%	1.62+-325%	0.49+-435%	30.66+-6%	2.62+-19%	30.66+-6%