mem: use list.Len #8796

tac0turtle · 2021-03-05T12:39:30Z

Description

Use list.Len()

closes: #8795

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Targeted PR against correct branch (see CONTRIBUTING.md)
Linked to Github issue with discussion and accepted design OR link to spec that describes this work.
Code follows the module structure standards.
Wrote unit and integration tests
Updated relevant documentation (docs/) or specification (x/<module>/spec/)
Added relevant godoc comments.
Added a relevant changelog entry to the Unreleased section in CHANGELOG.md
Re-reviewed Files changed in the Github PR explorer
Review Codecov Report in the comment section below once CI passes

codecov · 2021-03-05T12:53:54Z

Codecov Report

Merging #8796 (7a1ff5d) into master (67964b1) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master    #8796   +/-   ##
=======================================
  Coverage   59.36%   59.36%           
=======================================
  Files         563      563           
  Lines       31257    31257           
=======================================
  Hits        18557    18557           
  Misses      10544    10544           
  Partials     2156     2156

Impacted Files	Coverage Δ
store/cachekv/memiterator.go	`65.78% <100.00%> (ø)`

Co-authored-by: Alessio Treglia <[email protected]> Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> (cherry picked from commit e17953a)

Co-authored-by: Alessio Treglia <[email protected]> Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> (cherry picked from commit e17953a) Co-authored-by: Marko <[email protected]>

Co-authored-by: Alessio Treglia <[email protected]> Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

* fixed broken links, typos * Update docs/ibc/overview.md Co-authored-by: Amaury <[email protected]> * Update docs/intro/sdk-app-architecture.md Co-authored-by: Marko <[email protected]> * Update docs/building-modules/simulator.md Co-authored-by: Marko <[email protected]> * build(deps): bump JamesIves/github-pages-deploy-action from 4.0.0 to 4.1.0 (#8792) Bumps [JamesIves/github-pages-deploy-action](https://github.com/JamesIves/github-pages-deploy-action) from 4.0.0 to 4.1.0. - [Release notes](https://github.com/JamesIves/github-pages-deploy-action/releases) - [Commits](JamesIves/github-pages-deploy-action@4.0.0...3dbacc7) Signed-off-by: dependabot[bot] <[email protected]> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> * fix multisig account pubkeys migration (#8794) closes: #8776 * Update mergify (#8784) * Update mergify Prep for the v0.42 release series. * retire v0.41, the hub can upgrade to v0.42 smoothly * perf change (#8796) Co-authored-by: Alessio Treglia <[email protected]> Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> * Supply by denom Migrations (#8780) * Add back supply proto * Add migration for supply * Fix lint * Update x/bank/spec/01_state.md * Fix test * Proto gen * Update x/bank/spec/01_state.md * Make proto gen Co-authored-by: Jonathan Gimeno <[email protected]> * fix make protoc error (#8799) * reduce gas costs by 10x for transient store operations (#8790) * reduce gas costs by 10x for transient store operations * fix TestTransientGasConfig for ReadCostFlat * added changelog entry * fix changelog * fix changelog Co-authored-by: Alessio Treglia <[email protected]> * x/gov: fix NormalizeProposalType() return values (#8808) Closes: #8806 * store/cachekv: use typed types/kv.List instead of container/list.List (#8811) Reduces CPU burn by using a typed List to avoid the expensive type assertions from using an interface. This is the only option for now until Go makes generics generally available. The change brings time spent on the time assertion cummulatively to: 580ms down from 6.88s Explanation: The type assertions were showing up heavily in profiles: * Before this commit ```shell Total: 42.18s ROUTINE ======================== github.com/cosmos/cosmos-sdk/store/cachekv.newMemIterator in /Users/emmanuelodeke/go/src/github.com/cosmos/cosmos-sdk/store/cachekv/memiterator.go 14.01s 18.87s (flat, cum) 44.74% of Total . . 17: items []*kv.Pair . . 18: ascending bool . . 19:} . . 20: . . 21:func newMemIterator(start, end []byte, items *list.List, ascending bool) *memIterator { . 620ms 22: itemsInDomain := make([]*kv.Pair, 0, items.Len()) . . 23: . . 24: var entered bool . . 25: 510ms 870ms 26: for e := items.Front(); e != nil; e = e.Next() { 6.85s 6.88s 27: item := e.Value.(*kv.Pair) 5.71s 8.19s 28: if !dbm.IsKeyInDomain(item.Key, start, end) { 120ms 120ms 29: if entered { . . 30: break . . 31: } . . 32: . . 33: continue . . 34: } . . 35: 820ms 980ms 36: itemsInDomain = append(itemsInDomain, item) . . 37: entered = true . . 38: } . . 39: . 1.21s 40: return &memIterator{ . . 41: start: start, . . 42: end: end, . . 43: items: itemsInDomain, . . 44: ascending: ascending, . . 45: } ``` and given that the list only uses that type, it is only right to lift the code from container/list.List, and only modify Element.Value's type. For emphasis, the code is basically just a retrofit of container/list/list.go but with a typing, and we'll keep it as is until perhaps Go1.17 or Go1.18 or when everyone uses Go1.17+ after generics have landed. * After this commit ```shell Total: 45.25s ROUTINE ======================== github.com/cosmos/cosmos-sdk/store/cachekv.newMemIterator in /Users/emmanuelodeke/go/src/github.com/cosmos/cosmos-sdk/store/cachekv/memiterator.go 4.84s 6.77s (flat, cum) 14.96% of Total . . 16: items []*kv.Pair . . 17: ascending bool . . 18:} . . 19: . . 20:func newMemIterator(start, end []byte, items *kv.List, ascending bool) *memIterator { . 330ms 21: itemsInDomain := make([]*kv.Pair, 0, items.Len()) . . 22: . . 23: var entered bool . . 24: 60ms 160ms 25: for e := items.Front(); e != nil; e = e.Next() { 580ms 580ms 26: item := e.Value 3.68s 4.78s 27: if !dbm.IsKeyInDomain(item.Key, start, end) { 80ms 80ms 28: if entered { . . 29: break . . 30: } . . 31: . . 32: continue . . 33: } . . 34: 440ms 580ms 35: itemsInDomain = append(itemsInDomain, item) . . 36: entered = true . . 37: } . . 38: . 260ms 39: return &memIterator{ . . 40: start: start, . . 41: end: end, . . 42: items: itemsInDomain, . . 43: ascending: ascending, . . 44: } ``` Fixes #8810 * Move all migration scripts to v043 (#8814) * Move all migration scripts to v043 * Fix permaling * Fix test * Fix test again Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> * permalinks Co-authored-by: chrly <[email protected]> Co-authored-by: Amaury <[email protected]> Co-authored-by: Jonathan Gimeno <[email protected]> Co-authored-by: Marko <[email protected]> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> Co-authored-by: Akhil Kumar P <[email protected]> Co-authored-by: Alessio Treglia <[email protected]> Co-authored-by: Marko <[email protected]> Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> Co-authored-by: Albert Chon <[email protected]> Co-authored-by: Emmanuel T Odeke <[email protected]>

* fixed broken links, typos * Update docs/ibc/overview.md Co-authored-by: Amaury <[email protected]> * Update docs/intro/sdk-app-architecture.md Co-authored-by: Marko <[email protected]> * Update docs/building-modules/simulator.md Co-authored-by: Marko <[email protected]> * build(deps): bump JamesIves/github-pages-deploy-action from 4.0.0 to 4.1.0 (#8792) Bumps [JamesIves/github-pages-deploy-action](https://github.com/JamesIves/github-pages-deploy-action) from 4.0.0 to 4.1.0. - [Release notes](https://github.com/JamesIves/github-pages-deploy-action/releases) - [Commits](JamesIves/github-pages-deploy-action@4.0.0...3dbacc7) Signed-off-by: dependabot[bot] <[email protected]> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> * fix multisig account pubkeys migration (#8794) closes: #8776 * Update mergify (#8784) * Update mergify Prep for the v0.42 release series. * retire v0.41, the hub can upgrade to v0.42 smoothly * perf change (#8796) Co-authored-by: Alessio Treglia <[email protected]> Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> * Supply by denom Migrations (#8780) * Add back supply proto * Add migration for supply * Fix lint * Update x/bank/spec/01_state.md * Fix test * Proto gen * Update x/bank/spec/01_state.md * Make proto gen Co-authored-by: Jonathan Gimeno <[email protected]> * fix make protoc error (#8799) * reduce gas costs by 10x for transient store operations (#8790) * reduce gas costs by 10x for transient store operations * fix TestTransientGasConfig for ReadCostFlat * added changelog entry * fix changelog * fix changelog Co-authored-by: Alessio Treglia <[email protected]> * x/gov: fix NormalizeProposalType() return values (#8808) Closes: #8806 * store/cachekv: use typed types/kv.List instead of container/list.List (#8811) Reduces CPU burn by using a typed List to avoid the expensive type assertions from using an interface. This is the only option for now until Go makes generics generally available. The change brings time spent on the time assertion cummulatively to: 580ms down from 6.88s Explanation: The type assertions were showing up heavily in profiles: * Before this commit ```shell Total: 42.18s ROUTINE ======================== github.com/cosmos/cosmos-sdk/store/cachekv.newMemIterator in /Users/emmanuelodeke/go/src/github.com/cosmos/cosmos-sdk/store/cachekv/memiterator.go 14.01s 18.87s (flat, cum) 44.74% of Total . . 17: items []*kv.Pair . . 18: ascending bool . . 19:} . . 20: . . 21:func newMemIterator(start, end []byte, items *list.List, ascending bool) *memIterator { . 620ms 22: itemsInDomain := make([]*kv.Pair, 0, items.Len()) . . 23: . . 24: var entered bool . . 25: 510ms 870ms 26: for e := items.Front(); e != nil; e = e.Next() { 6.85s 6.88s 27: item := e.Value.(*kv.Pair) 5.71s 8.19s 28: if !dbm.IsKeyInDomain(item.Key, start, end) { 120ms 120ms 29: if entered { . . 30: break . . 31: } . . 32: . . 33: continue . . 34: } . . 35: 820ms 980ms 36: itemsInDomain = append(itemsInDomain, item) . . 37: entered = true . . 38: } . . 39: . 1.21s 40: return &memIterator{ . . 41: start: start, . . 42: end: end, . . 43: items: itemsInDomain, . . 44: ascending: ascending, . . 45: } ``` and given that the list only uses that type, it is only right to lift the code from container/list.List, and only modify Element.Value's type. For emphasis, the code is basically just a retrofit of container/list/list.go but with a typing, and we'll keep it as is until perhaps Go1.17 or Go1.18 or when everyone uses Go1.17+ after generics have landed. * After this commit ```shell Total: 45.25s ROUTINE ======================== github.com/cosmos/cosmos-sdk/store/cachekv.newMemIterator in /Users/emmanuelodeke/go/src/github.com/cosmos/cosmos-sdk/store/cachekv/memiterator.go 4.84s 6.77s (flat, cum) 14.96% of Total . . 16: items []*kv.Pair . . 17: ascending bool . . 18:} . . 19: . . 20:func newMemIterator(start, end []byte, items *kv.List, ascending bool) *memIterator { . 330ms 21: itemsInDomain := make([]*kv.Pair, 0, items.Len()) . . 22: . . 23: var entered bool . . 24: 60ms 160ms 25: for e := items.Front(); e != nil; e = e.Next() { 580ms 580ms 26: item := e.Value 3.68s 4.78s 27: if !dbm.IsKeyInDomain(item.Key, start, end) { 80ms 80ms 28: if entered { . . 29: break . . 30: } . . 31: . . 32: continue . . 33: } . . 34: 440ms 580ms 35: itemsInDomain = append(itemsInDomain, item) . . 36: entered = true . . 37: } . . 38: . 260ms 39: return &memIterator{ . . 40: start: start, . . 41: end: end, . . 42: items: itemsInDomain, . . 43: ascending: ascending, . . 44: } ``` Fixes #8810 * Move all migration scripts to v043 (#8814) * Move all migration scripts to v043 * Fix permaling * Fix test * Fix test again Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> * permalinks Co-authored-by: chrly <[email protected]> Co-authored-by: Amaury <[email protected]> Co-authored-by: Jonathan Gimeno <[email protected]> Co-authored-by: Marko <[email protected]> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> Co-authored-by: Akhil Kumar P <[email protected]> Co-authored-by: Alessio Treglia <[email protected]> Co-authored-by: Marko <[email protected]> Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> Co-authored-by: Albert Chon <[email protected]> Co-authored-by: Emmanuel T Odeke <[email protected]> (cherry picked from commit 55fc465)

* fixed broken links, typos * Update docs/ibc/overview.md Co-authored-by: Amaury <[email protected]> * Update docs/intro/sdk-app-architecture.md Co-authored-by: Marko <[email protected]> * Update docs/building-modules/simulator.md Co-authored-by: Marko <[email protected]> * build(deps): bump JamesIves/github-pages-deploy-action from 4.0.0 to 4.1.0 (#8792) Bumps [JamesIves/github-pages-deploy-action](https://github.com/JamesIves/github-pages-deploy-action) from 4.0.0 to 4.1.0. - [Release notes](https://github.com/JamesIves/github-pages-deploy-action/releases) - [Commits](JamesIves/github-pages-deploy-action@4.0.0...3dbacc7) Signed-off-by: dependabot[bot] <[email protected]> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> * fix multisig account pubkeys migration (#8794) closes: #8776 * Update mergify (#8784) * Update mergify Prep for the v0.42 release series. * retire v0.41, the hub can upgrade to v0.42 smoothly * perf change (#8796) Co-authored-by: Alessio Treglia <[email protected]> Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> * Supply by denom Migrations (#8780) * Add back supply proto * Add migration for supply * Fix lint * Update x/bank/spec/01_state.md * Fix test * Proto gen * Update x/bank/spec/01_state.md * Make proto gen Co-authored-by: Jonathan Gimeno <[email protected]> * fix make protoc error (#8799) * reduce gas costs by 10x for transient store operations (#8790) * reduce gas costs by 10x for transient store operations * fix TestTransientGasConfig for ReadCostFlat * added changelog entry * fix changelog * fix changelog Co-authored-by: Alessio Treglia <[email protected]> * x/gov: fix NormalizeProposalType() return values (#8808) Closes: #8806 * store/cachekv: use typed types/kv.List instead of container/list.List (#8811) Reduces CPU burn by using a typed List to avoid the expensive type assertions from using an interface. This is the only option for now until Go makes generics generally available. The change brings time spent on the time assertion cummulatively to: 580ms down from 6.88s Explanation: The type assertions were showing up heavily in profiles: * Before this commit ```shell Total: 42.18s ROUTINE ======================== github.com/cosmos/cosmos-sdk/store/cachekv.newMemIterator in /Users/emmanuelodeke/go/src/github.com/cosmos/cosmos-sdk/store/cachekv/memiterator.go 14.01s 18.87s (flat, cum) 44.74% of Total . . 17: items []*kv.Pair . . 18: ascending bool . . 19:} . . 20: . . 21:func newMemIterator(start, end []byte, items *list.List, ascending bool) *memIterator { . 620ms 22: itemsInDomain := make([]*kv.Pair, 0, items.Len()) . . 23: . . 24: var entered bool . . 25: 510ms 870ms 26: for e := items.Front(); e != nil; e = e.Next() { 6.85s 6.88s 27: item := e.Value.(*kv.Pair) 5.71s 8.19s 28: if !dbm.IsKeyInDomain(item.Key, start, end) { 120ms 120ms 29: if entered { . . 30: break . . 31: } . . 32: . . 33: continue . . 34: } . . 35: 820ms 980ms 36: itemsInDomain = append(itemsInDomain, item) . . 37: entered = true . . 38: } . . 39: . 1.21s 40: return &memIterator{ . . 41: start: start, . . 42: end: end, . . 43: items: itemsInDomain, . . 44: ascending: ascending, . . 45: } ``` and given that the list only uses that type, it is only right to lift the code from container/list.List, and only modify Element.Value's type. For emphasis, the code is basically just a retrofit of container/list/list.go but with a typing, and we'll keep it as is until perhaps Go1.17 or Go1.18 or when everyone uses Go1.17+ after generics have landed. * After this commit ```shell Total: 45.25s ROUTINE ======================== github.com/cosmos/cosmos-sdk/store/cachekv.newMemIterator in /Users/emmanuelodeke/go/src/github.com/cosmos/cosmos-sdk/store/cachekv/memiterator.go 4.84s 6.77s (flat, cum) 14.96% of Total . . 16: items []*kv.Pair . . 17: ascending bool . . 18:} . . 19: . . 20:func newMemIterator(start, end []byte, items *kv.List, ascending bool) *memIterator { . 330ms 21: itemsInDomain := make([]*kv.Pair, 0, items.Len()) . . 22: . . 23: var entered bool . . 24: 60ms 160ms 25: for e := items.Front(); e != nil; e = e.Next() { 580ms 580ms 26: item := e.Value 3.68s 4.78s 27: if !dbm.IsKeyInDomain(item.Key, start, end) { 80ms 80ms 28: if entered { . . 29: break . . 30: } . . 31: . . 32: continue . . 33: } . . 34: 440ms 580ms 35: itemsInDomain = append(itemsInDomain, item) . . 36: entered = true . . 37: } . . 38: . 260ms 39: return &memIterator{ . . 40: start: start, . . 41: end: end, . . 42: items: itemsInDomain, . . 43: ascending: ascending, . . 44: } ``` Fixes #8810 * Move all migration scripts to v043 (#8814) * Move all migration scripts to v043 * Fix permaling * Fix test * Fix test again Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> * permalinks Co-authored-by: chrly <[email protected]> Co-authored-by: Amaury <[email protected]> Co-authored-by: Jonathan Gimeno <[email protected]> Co-authored-by: Marko <[email protected]> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> Co-authored-by: Akhil Kumar P <[email protected]> Co-authored-by: Alessio Treglia <[email protected]> Co-authored-by: Marko <[email protected]> Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> Co-authored-by: Albert Chon <[email protected]> Co-authored-by: Emmanuel T Odeke <[email protected]> (cherry picked from commit 55fc465) Co-authored-by: Charly <[email protected]>

perf change

0f8c284

tac0turtle requested review from aaronc, alessio and alexanderbez as code owners March 5, 2021 12:39

tac0turtle requested a review from amaury1093 March 5, 2021 12:39

tac0turtle self-assigned this Mar 5, 2021

tac0turtle added A:automerge Automatically merge PR once all prerequisites pass. backport/0.42.x (Stargate) labels Mar 5, 2021

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Merge branch 'master' into 8795/perf

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alessio requested review from jgimeno and a team March 5, 2021 12:44

tac0turtle requested a review from robert-zaremba March 5, 2021 12:59

fdymylja approved these changes Mar 5, 2021

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Merge branch 'master' into 8795/perf

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mergify bot merged commit e17953a into master Mar 5, 2021

mergify bot deleted the 8795/perf branch March 5, 2021 13:17

mergify bot pushed a commit that referenced this pull request Mar 5, 2021

perf change (#8796)

102be49

Co-authored-by: Alessio Treglia <[email protected]> Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> (cherry picked from commit e17953a)

mergify bot mentioned this pull request Mar 5, 2021

mem: use list.Len (bp #8796) #8797

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charleenfei pushed a commit to charleenfei/cosmos-sdk that referenced this pull request Mar 10, 2021

perf change (cosmos#8796)

7cce3b7

Co-authored-by: Alessio Treglia <[email protected]> Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

This was referenced Mar 11, 2021

Bump github.com/cosmos/cosmos-sdk from 0.40.0-rc5 to 0.42.1 celestiaorg/celestia-app#45

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build(deps): bump github.com/cosmos/cosmos-sdk from 0.41.4 to 0.42.1 maticnetwork/heimdall#600

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mem: use list.Len #8796

mem: use list.Len #8796

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mem: use list.Len #8796

mem: use list.Len #8796

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