History

Tobias Bosch f802194c18 refactor(core): have different data types for each node. (#14120 )

Also have a new node type for queries.

This leads to less memory usage and better performance.

Deep Tree Benchmark results (depth 11):
- createAndDestroy (view engine vs current codegen):
  * pureScriptTime: 78.80+-4% vs 72.34+-4%
  * scriptTime: 78.80+-4% vs 90.71+-9%
  * gc: 5371.66+-108% vs 9717.53+-174%
  * i.e. faster when gc is also considered and about 2x less memory usage!
- update unchanged

Part of #14013
PR Close #14120

2017-01-27 12:08:54 -06:00

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

refactor(core): have different data types for each node. (#14120 )

2017-01-27 12:08:54 -06:00

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%