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[x/gamm][StableSwap] Add scaling factor #1277

Closed
Tracked by #1451
ValarDragon opened this issue Apr 18, 2022 · 0 comments · Fixed by #1354
Closed
Tracked by #1451

[x/gamm][StableSwap] Add scaling factor #1277

ValarDragon opened this issue Apr 18, 2022 · 0 comments · Fixed by #1354
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@ValarDragon ValarDragon mentioned this issue Apr 18, 2022
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@ValarDragon ValarDragon changed the title Add a scaling factor parameter, where basically all arguments are scaled down by. Imagine stablecoin 1 is such that 10 stablecoin1 = $1, but stablecoin2 is such that 1000 stablecoin2 = $1. (Precision differences)We need an argument in the parameters, that each asset is individually divided by, in order to be comparableThis is how we feed sdk.Dec's to all internal functions Stableswap: Add scaling factor Apr 18, 2022
@mattverse mattverse self-assigned this Apr 26, 2022
@mattverse mattverse mentioned this issue Apr 26, 2022
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@mergify mergify bot closed this as completed in #1354 May 4, 2022
mergify bot pushed a commit that referenced this issue May 4, 2022
@mattverse
Add scaling factors (#1354)
fa50f78 
Closes: #1277

## What is the purpose of the change

This PR adds scaling factors to current stable swap implementation. 

For context on why scaling factors are needed: Suppose 1000 stablecoin1 equals 1 dollars, 100 stablecoin2 equals 2 dollars due to precision difference. Currently we compare each pool assets without considering these differences in precisions in `calcOutAmtGivenIn`, `calcInAmtGivenOut`, `SpotPrice`. 

This PR adds a field of scaling factors for each pool asset so that when internally calculating in `amm.go`, we compare two different assets upon same precision points. We do this by feeding the internal functions assets / scaling factors.

## Brief change log

- Adds scaling factor to stableswap
*(for example:)*
 
  - *The metadata is stored in the blob store on job creation time as a persistent artifact*
  - *Deployments RPC transmits only the blob storage reference*
  - *Daemons retrieve the RPC data from the blob cache*


## Testing and Verifying

This change is a trivial rework / code cleanup without any test coverage.


## Documentation and Release Note

  - Does this pull request introduce a new feature or user-facing behavior changes? yes
  - Is a relevant changelog entry added to the `Unreleased` section in `CHANGELOG.md`? no
  - How is the feature or change documented? not applicable
czarcas7ic pushed a commit that referenced this issue May 5, 2022
@mattverse @czarcas7ic
Add scaling factors (#1354)
5e9feb5 
Closes: #1277

## What is the purpose of the change

This PR adds scaling factors to current stable swap implementation. 

For context on why scaling factors are needed: Suppose 1000 stablecoin1 equals 1 dollars, 100 stablecoin2 equals 2 dollars due to precision difference. Currently we compare each pool assets without considering these differences in precisions in `calcOutAmtGivenIn`, `calcInAmtGivenOut`, `SpotPrice`. 

This PR adds a field of scaling factors for each pool asset so that when internally calculating in `amm.go`, we compare two different assets upon same precision points. We do this by feeding the internal functions assets / scaling factors.

## Brief change log

- Adds scaling factor to stableswap
*(for example:)*
 
  - *The metadata is stored in the blob store on job creation time as a persistent artifact*
  - *Deployments RPC transmits only the blob storage reference*
  - *Daemons retrieve the RPC data from the blob cache*


## Testing and Verifying

This change is a trivial rework / code cleanup without any test coverage.


## Documentation and Release Note

  - Does this pull request introduce a new feature or user-facing behavior changes? yes
  - Is a relevant changelog entry added to the `Unreleased` section in `CHANGELOG.md`? no
  - How is the feature or change documented? not applicable
czarcas7ic added a commit that referenced this issue May 5, 2022
@czarcas7ic @p0mvn
@mattverse @alexanderbez
test: upgrade testing automation (#1389)
94caf2b 
* upgrade init

* add voting period to init image

* upgrade mvp

* move upgrade to setup

* permission fix

* github permissions

* delete to readd

* readd

* remove chmod

* permissions attempt

* permission change

* clean up

* remove init docker image creation

* test yml

* re add git diff

* revert dockerfile

* final github ci test

* revert

* initial code review changes

* Apply suggestions from code review

Co-authored-by: Roman <roman@osmosis.team>

* code review

* simple code 0 check

* Add scaling factors (#1354)

Closes: #1277

## What is the purpose of the change

This PR adds scaling factors to current stable swap implementation. 

For context on why scaling factors are needed: Suppose 1000 stablecoin1 equals 1 dollars, 100 stablecoin2 equals 2 dollars due to precision difference. Currently we compare each pool assets without considering these differences in precisions in `calcOutAmtGivenIn`, `calcInAmtGivenOut`, `SpotPrice`. 

This PR adds a field of scaling factors for each pool asset so that when internally calculating in `amm.go`, we compare two different assets upon same precision points. We do this by feeding the internal functions assets / scaling factors.

## Brief change log

- Adds scaling factor to stableswap
*(for example:)*
 
  - *The metadata is stored in the blob store on job creation time as a persistent artifact*
  - *Deployments RPC transmits only the blob storage reference*
  - *Daemons retrieve the RPC data from the blob cache*


## Testing and Verifying

This change is a trivial rework / code cleanup without any test coverage.


## Documentation and Release Note

  - Does this pull request introduce a new feature or user-facing behavior changes? yes
  - Is a relevant changelog entry added to the `Unreleased` section in `CHANGELOG.md`? no
  - How is the feature or change documented? not applicable

* address roman comments

Co-authored-by: Roman <roman@osmosis.team>
Co-authored-by: Matt, Park <45252226+mattverse@users.noreply.github.com>
Co-authored-by: Aleksandr Bezobchuk <alexanderbez@users.noreply.github.com>
@p0mvn p0mvn changed the title Stableswap: Add scaling factor [x/gamm] Stableswap: Add scaling factor May 9, 2022
@p0mvn p0mvn mentioned this issue May 9, 2022
Closed
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@p0mvn p0mvn added the T:task ⚙️ A task belongs to a story label May 9, 2022
@p0mvn p0mvn changed the title [x/gamm] Stableswap: Add scaling factor [x/gamm][StableSwap] Add scaling factor May 9, 2022
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Add scaling factors osmosis-labs/osmosis
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@ValarDragon @p0mvn @mattverse @xBalbinus