cosmos-sdk/x/params
Dev Ojha 61dd71ed87
perf: Speedup to params simulation (#9481)
## Description

In Osmosis' simulation, we were observing that a large percent of the time was spent within SimulateParamChangeProposalContent, in particular within the composed key function. This is from a trace of our simulator running for 10 minutes:

<img width="931" alt="Screenshot 2021-06-08 at 2 32 28 PM" src="https://user-images.githubusercontent.com/6440154/121238788-16cdd000-c85e-11eb-8251-94537e69f8ce.png">

~This change lowers the number of calls to ComposedKey() by a factor of 3, and speeds up the underlying ComposedKey function. (sprintf is not particularly efficient for string concatenation, https://dev.to/pmalhaire/concatenate-strings-in-golang-a-quick-benchmark-4ahh ). After these change, the effect of ComposedKey() can no longer be seen in the profiler outputs.~

~This change does not change the result of the simulator on a given seed.~

See https://github.com/cosmos/cosmos-sdk/pull/9481#issuecomment-857119210 for description of changes.

---

### Author Checklist

*All items are required. Please add a note to the item if the item is not applicable and
please add links to any relevant follow up issues.*

I have...

- [x] included the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [x] added `!` to the type prefix if API or client breaking change
- [x] targeted the correct branch (see [PR Targeting](https://github.com/cosmos/cosmos-sdk/blob/master/CONTRIBUTING.md#pr-targeting))
- [x] provided a link to the relevant issue or specification
- [x] followed the guidelines for [building modules](https://github.com/cosmos/cosmos-sdk/blob/master/docs/building-modules)
- [x] included the necessary unit and integration [tests](https://github.com/cosmos/cosmos-sdk/blob/master/CONTRIBUTING.md#testing)
- [x] added a changelog entry to `CHANGELOG.md`
- [x] included comments for [documenting Go code](https://blog.golang.org/godoc)
- [x] updated the relevant documentation or specification
- [x] reviewed "Files changed" and left comments if necessary
- [ ] confirmed all CI checks have passed

### Reviewers Checklist

*All items are required. Please add a note if the item is not applicable and please add
your handle next to the items reviewed if you only reviewed selected items.*

I have...

- [ ] confirmed the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [ ] confirmed `!` in the type prefix if API or client breaking change
- [ ] confirmed all author checklist items have been addressed 
- [ ] reviewed state machine logic
- [ ] reviewed API design and naming
- [ ] reviewed documentation is accurate
- [ ] reviewed tests and test coverage
- [ ] manually tested (if applicable)
2021-06-17 07:42:07 +00:00
..
client refactor(client): add client/Context.Codec and deprecate JSONCodec (#9498) 2021-06-11 11:49:39 +00:00
keeper codec: Rename codec and marshaler interfaces (#9226) 2021-04-29 10:46:22 +00:00
legacy/v036 Remove migration scripts <=0.38 (#9291) 2021-05-11 14:01:13 +00:00
simulation perf: Speedup to params simulation (#9481) 2021-06-17 07:42:07 +00:00
spec chore: add markdownlint to lint commands (#9353) 2021-05-27 15:31:04 +00:00
types codec: Rename codec and marshaler interfaces (#9226) 2021-04-29 10:46:22 +00:00
doc.go x/params docs general audit & cleanup (#8295) 2021-01-15 13:30:17 +00:00
module.go codec: Rename codec and marshaler interfaces (#9226) 2021-04-29 10:46:22 +00:00
proposal_handler.go Merge PR #5942: Tx Client Migration: x/gov 2020-04-14 15:05:14 -04:00
proposal_handler_test.go gov, params: refactor tests (#9137) 2021-04-30 08:41:25 +00:00