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perf: Remove telemetry from wrappings of store (backport #10077) (#10170
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* perf: Remove telemetry from wrappings of store (#10077)

## Description

Closes: #10072

Significantly speeds up all the GasKvStore and CacheKVStore operations. Now Get/Set for these stores no longer even appears on my Osmosis benchmarks, saving ~8% of those benchmark's times. (Only one of the internal methods for setCacheValue appear -- will try to separately get a PR for reducing those memory allocations if #10026 is merged)

Talked to @alexanderbez about this on Discord, and he seemed in agreement with the approach of removing telemetry from these stores.

This does technically change telemetry, but I don't know if this is / should be considered a breaking change?

---

### 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
- [ ] 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)
- [ ] added a changelog entry to `CHANGELOG.md`
- [x] included comments for [documenting Go code](https://blog.golang.org/godoc)
- [ ] updated the relevant documentation or specification - is there something I should be updating?
- [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)

(cherry picked from commit 78b151d)

# Conflicts:
#	CHANGELOG.md

* fix changelog

Co-authored-by: Dev Ojha <[email protected]>
Co-authored-by: Robert Zaremba <[email protected]>
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3 people authored Sep 17, 2021
1 parent 6bc72e7 commit cded906
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1 change: 1 addition & 0 deletions CHANGELOG.md
Original file line number Diff line number Diff line change
Expand Up @@ -41,6 +41,7 @@ Ref: https://keepachangelog.com/en/1.0.0/

* (store) [\#10040](https://github.com/cosmos/cosmos-sdk/pull/10040) Bump IAVL to v0.17.1 which includes performance improvements on a batch load.
* (types) [\#10021](https://github.com/cosmos/cosmos-sdk/pull/10021) Speedup coins.AmountOf(), by removing many intermittent regex calls.
* [\#10077](https://github.com/cosmos/cosmos-sdk/pull/10077) Remove telemetry on `GasKV` and `CacheKV` store Get/Set operations, significantly improving their performance.
* (store) [\#10026](https://github.com/cosmos/cosmos-sdk/pull/10026) Improve CacheKVStore datastructures / algorithms, to no longer take O(N^2) time when interleaving iterators and insertions.

### Bug Fixes
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2 changes: 0 additions & 2 deletions store/cachekv/store.go
Original file line number Diff line number Diff line change
Expand Up @@ -56,7 +56,6 @@ func (store *Store) GetStoreType() types.StoreType {
func (store *Store) Get(key []byte) (value []byte) {
store.mtx.Lock()
defer store.mtx.Unlock()
defer telemetry.MeasureSince(time.Now(), "store", "cachekv", "get")

types.AssertValidKey(key)

Expand All @@ -75,7 +74,6 @@ func (store *Store) Get(key []byte) (value []byte) {
func (store *Store) Set(key []byte, value []byte) {
store.mtx.Lock()
defer store.mtx.Unlock()
defer telemetry.MeasureSince(time.Now(), "store", "cachekv", "set")

types.AssertValidKey(key)
types.AssertValidValue(value)
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4 changes: 0 additions & 4 deletions store/gaskv/store.go
Original file line number Diff line number Diff line change
Expand Up @@ -35,8 +35,6 @@ func (gs *Store) GetStoreType() types.StoreType {

// Implements KVStore.
func (gs *Store) Get(key []byte) (value []byte) {
defer telemetry.MeasureSince(time.Now(), "store", "gaskv", "get")

gs.gasMeter.ConsumeGas(gs.gasConfig.ReadCostFlat, types.GasReadCostFlatDesc)
value = gs.parent.Get(key)

Expand All @@ -48,8 +46,6 @@ func (gs *Store) Get(key []byte) (value []byte) {

// Implements KVStore.
func (gs *Store) Set(key []byte, value []byte) {
defer telemetry.MeasureSince(time.Now(), "store", "gaskv", "set")

types.AssertValidKey(key)
types.AssertValidValue(value)
gs.gasMeter.ConsumeGas(gs.gasConfig.WriteCostFlat, types.GasWriteCostFlatDesc)
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