perf: Speedup coins.AmountOf() by removing many regex calls #10021
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Codecov Report
@@ Coverage Diff @@
## master #10021 +/- ##
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Coverage 63.56% 63.57%
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Files 572 572
Lines 53598 53600 +2
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+ Hits 34072 34075 +3
+ Misses 17582 17581 -1
Partials 1944 1944
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fedekunze
reviewed
Aug 30, 2021
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| // AmountOfNoDenomValidation returns the amount of a denom from coins | ||
| // without validating the denomination. | ||
| func (coins Coins) AmountOfNoDenomValidation(denom string) Int { |
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Suggested change
| func (coins Coins) AmountOfNoDenomValidation(denom string) Int { | |
| func (coins Coins) AmountOfWithoutValidation(denom string) Int { |
| midIdx := len(coins) / 2 // 2:1, 3:1, 4:2 | ||
| coin := coins[midIdx] | ||
| switch { | ||
| case denom < coin.Denom: | ||
| return coins[:midIdx].AmountOf(denom) | ||
| return coins[:midIdx].AmountOfNoDenomValidation(denom) |
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Suggested change
| return coins[:midIdx].AmountOfNoDenomValidation(denom) | |
| return coins[:midIdx].AmountOfWithoutValidation(denom) |
| case denom == coin.Denom: | ||
| return coin.Amount | ||
| default: | ||
| return coins[midIdx+1:].AmountOf(denom) | ||
| return coins[midIdx+1:].AmountOfNoDenomValidation(denom) |
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Suggested change
| return coins[midIdx+1:].AmountOfNoDenomValidation(denom) | |
| return coins[midIdx+1:].AmountOfWithoutValidation(denom) |
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I personally like the name Granted this clearly won't scale if more validations were required, so happy to change the name per your suggestion if you think its much better. |
alexanderbez
approved these changes
Sep 1, 2021
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Do we need to backport this to v0.44 or 0.42? |
might as well |
tac0turtle
added
A:automerge
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@ValarDragon can you update the pr, after which the bot will merge it |
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Visit https://dashboard.github.orijtech.com?back=0&pr=10021&remote=false&repo=cosmos%2Fcosmos-sdk to see benchmark details. |
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@Mergifyio backport release/v0.44.x |
mergify bot
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Sep 16, 2021
(cherry picked from commit ed35bfd) # Conflicts: # CHANGELOG.md
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evan-forbes
pushed a commit
to evan-forbes/cosmos-sdk
that referenced
this pull request
Oct 12, 2021
…osmos#10021) (cosmos#10166) * perf: Speedup coins.AmountOf() by removing many regex calls (cosmos#10021) (cherry picked from commit ed35bfd) # Conflicts: # CHANGELOG.md * fix conflict * fix changelog Co-authored-by: Dev Ojha <ValarDragon@users.noreply.github.com> Co-authored-by: Robert Zaremba <robert@zaremba.ch>
evan-forbes
pushed a commit
to evan-forbes/cosmos-sdk
that referenced
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Nov 1, 2021
…osmos#10021) (cosmos#10166) * perf: Speedup coins.AmountOf() by removing many regex calls (cosmos#10021) (cherry picked from commit ed35bfd) # Conflicts: # CHANGELOG.md * fix conflict * fix changelog Co-authored-by: Dev Ojha <ValarDragon@users.noreply.github.com> Co-authored-by: Robert Zaremba <robert@zaremba.ch>
19 tasks
JeancarloBarrios
pushed a commit
to agoric-labs/cosmos-sdk
that referenced
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Sep 28, 2024
…osmos#10021) (cosmos#10166) * perf: Speedup coins.AmountOf() by removing many regex calls (cosmos#10021) (cherry picked from commit ed35bfd) # Conflicts: # CHANGELOG.md * fix conflict * fix changelog Co-authored-by: Dev Ojha <ValarDragon@users.noreply.github.com> Co-authored-by: Robert Zaremba <robert@zaremba.ch>
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Description
Speeds up coins.AmountOf() by removing many regex calls when users hold multiple tokens. I expose the AmountOfNoDenomValidation function publicly, because this is quite useful when you know that the denomination is pre-validated, as we do in usecases within Osmosis where we call this function.
(This function is a notable amount of our current epoch time after CacheKV store fixes at approximately 5%, all spent within the regex matching)
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