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T4443 followup Restrict Dependency to only include keys in the downward dependency closure

performanceIssues about memory consumption, responsiveness, etc.Issues about memory consumption, responsiveness, etc.

Status: Draft (not ready).

haskell/haskell-language-servernumber 4609

#4609 In haskell/haskell-language-server;

· soulomoon opened on Jun 1, 2025

· Review required

· 29/41

2

rawDependencyInformation bad performance and memory usage

performanceIssues about memory consumption, responsiveness, etc.Issues about memory consumption, responsiveness, etc.

type: bugSomething isn't right: doesn't work as intended, documentation is missing/outdated, etc..Something isn't right: doesn't work as intended, documentation is missing/outdated, etc..

Status: Open.

#4598 In haskell/haskell-language-server;

· guibou opened on May 25, 2025

9 comments

Speed up session loader

performanceIssues about memory consumption, responsiveness, etc.Issues about memory consumption, responsiveness, etc.

type: enhancementNew feature or requestNew feature or request

Status: Open.

#4446 In haskell/haskell-language-server;

· soulomoon opened on Nov 9, 2024

Decouple the session loader into reader and writer over the cache

performanceIssues about memory consumption, responsiveness, etc.Issues about memory consumption, responsiveness, etc.

Status: Draft (not ready).

haskell/haskell-language-servernumber 4445

#4445 In haskell/haskell-language-server;

· soulomoon opened on Nov 9, 2024

· Review required

· 31/36

4



Performance: adding an import retriggers a long "Processing"

performanceIssues about memory consumption, responsiveness, etc.Issues about memory consumption, responsiveness, etc.

type: bugSomething isn't right: doesn't work as intended, documentation is missing/outdated, etc..Something isn't right: doesn't work as intended, documentation is missing/outdated, etc..

Status: Open.

#4443 In haskell/haskell-language-server;

· guibou opened on Nov 2, 2024

17 comments

Refactor Workerqueue, add waiting empty utility for testing

performanceIssues about memory consumption, responsiveness, etc.Issues about memory consumption, responsiveness, etc.

status: needs reviewThis PR is ready for reviewThis PR is ready for review

Status: Open (in progress).

haskell/haskell-language-servernumber 4296

#4296 In haskell/haskell-language-server;

· soulomoon opened on Jun 8, 2024

· Review required

· 37/37

4

Memory leak when interacting with embedded files

can-workaround

component: ghcide

performanceIssues about memory consumption, responsiveness, etc.Issues about memory consumption, responsiveness, etc.

type: bugSomething isn't right: doesn't work as intended, documentation is missing/outdated, etc..Something isn't right: doesn't work as intended, documentation is missing/outdated, etc..

Status: Open.

#3833 In haskell/haskell-language-server;

· jssblck opened on Oct 9, 2023

1 comment

haskell-language-server starts up slowly

performanceIssues about memory consumption, responsiveness, etc.Issues about memory consumption, responsiveness, etc.

type: enhancementNew feature or requestNew feature or request

Status: Open.

#3578 In haskell/haskell-language-server;

· mitchellwrosen opened on May 6, 2023

3 comments

HLS 1.9 seems to do a huge amount of work when multiple units are open and one file is changed

performanceIssues about memory consumption, responsiveness, etc.Issues about memory consumption, responsiveness, etc.

priority: highHigh priority itemHigh priority item

type: bugSomething isn't right: doesn't work as intended, documentation is missing/outdated, etc..Something isn't right: doesn't work as intended, documentation is missing/outdated, etc..

Status: Open.

#3458 In haskell/haskell-language-server;

· ocharles opened on Jan 21, 2023

14 comments

Migrate to OsPath

performanceIssues about memory consumption, responsiveness, etc.Issues about memory consumption, responsiveness, etc.

type: enhancementNew feature or requestNew feature or request

Status: Open.

#3046 In haskell/haskell-language-server;

· kokobd opened on Jul 18, 2022

16 comments

Storing dependencies contributes significantly to memory usage

performanceIssues about memory consumption, responsiveness, etc.Issues about memory consumption, responsiveness, etc.

type: bugSomething isn't right: doesn't work as intended, documentation is missing/outdated, etc..Something isn't right: doesn't work as intended, documentation is missing/outdated, etc..

Status: Open.

#2963 In haskell/haskell-language-server;

· mpickering opened on Jun 16, 2022

5 comments



High memory usage even on simple completion

performanceIssues about memory consumption, responsiveness, etc.Issues about memory consumption, responsiveness, etc.

type: bugSomething isn't right: doesn't work as intended, documentation is missing/outdated, etc..Something isn't right: doesn't work as intended, documentation is missing/outdated, etc..

Status: Open.

#2839 In haskell/haskell-language-server;

· mattatticus opened on Apr 19, 2022

15 comments

Install tests to preserve behaviour of persisted rules at startup

performanceIssues about memory consumption, responsiveness, etc.Issues about memory consumption, responsiveness, etc.

type: enhancementNew feature or requestNew feature or request

Status: Open.

#2318 In haskell/haskell-language-server;

· pepeiborra opened on Oct 31, 2021

HLS has ridiculously high CPU/memory usage using typed holes

os: windows

performanceIssues about memory consumption, responsiveness, etc.Issues about memory consumption, responsiveness, etc.

status: needs infoNot actionable, because there's missing informationNot actionable, because there's missing information

type: bugSomething isn't right: doesn't work as intended, documentation is missing/outdated, etc..Something isn't right: doesn't work as intended, documentation is missing/outdated, etc..

Status: Open.

#2315 In haskell/haskell-language-server;

· bradrn opened on Oct 30, 2021

14 comments

Clean up ghcide and hie-bios cache in the test suite

CIContinuous integrationContinuous integration

performanceIssues about memory consumption, responsiveness, etc.Issues about memory consumption, responsiveness, etc.

type: bugSomething isn't right: doesn't work as intended, documentation is missing/outdated, etc..Something isn't right: doesn't work as intended, documentation is missing/outdated, etc..

Status: Open.

#2252 In haskell/haskell-language-server;

· jneira opened on Oct 1, 2021

2 comments

Excessive memory usage in monorepos with dozens/hundreds of cabal packages or modules

component: hie-bios

performanceIssues about memory consumption, responsiveness, etc.Issues about memory consumption, responsiveness, etc.

status: needs infoNot actionable, because there's missing informationNot actionable, because there's missing information

type: bugSomething isn't right: doesn't work as intended, documentation is missing/outdated, etc..Something isn't right: doesn't work as intended, documentation is missing/outdated, etc..

type: enhancementNew feature or requestNew feature or request

Status: Open.

#2151 In haskell/haskell-language-server;

· jneira opened on Sep 1, 2021

54 comments

Improve performance of discovering the ghc version used by the project

component: hie-bios

performanceIssues about memory consumption, responsiveness, etc.Issues about memory consumption, responsiveness, etc.

type: enhancementNew feature or requestNew feature or request

Status: Open.

#2010 In haskell/haskell-language-server;

· runeksvendsen opened on Jul 12, 2021

22 comments

Space leak in persistentHieFileRule

performanceIssues about memory consumption, responsiveness, etc.Issues about memory consumption, responsiveness, etc.

type: bugSomething isn't right: doesn't work as intended, documentation is missing/outdated, etc..Something isn't right: doesn't work as intended, documentation is missing/outdated, etc..

Status: Open.

#1946 In haskell/haskell-language-server;

· pepeiborra opened on Jun 18, 2021

3 comments

Run ghcide benchmark suite on HLS

performanceIssues about memory consumption, responsiveness, etc.Issues about memory consumption, responsiveness, etc.

type: enhancementNew feature or requestNew feature or request

Status: Open.

#1201 In haskell/haskell-language-server;

· pepeiborra opened on Jan 12, 2021

7 comments



too many clang/gcc processes, system limit reached

build tool: stack

os: macos

performanceIssues about memory consumption, responsiveness, etc.Issues about memory consumption, responsiveness, etc.

status: needs infoNot actionable, because there's missing informationNot actionable, because there's missing information

type: bugSomething isn't right: doesn't work as intended, documentation is missing/outdated, etc..Something isn't right: doesn't work as intended, documentation is missing/outdated, etc..

Status: Open.

#580 In haskell/haskell-language-server;

· simonmichael opened on Nov 10, 2020

6 comments

Benchmark more kinds of configurations

CIContinuous integrationContinuous integration

component: ghcide

performanceIssues about memory consumption, responsiveness, etc.Issues about memory consumption, responsiveness, etc.

type: enhancementNew feature or requestNew feature or request

Status: Open.

#728 In haskell/haskell-language-server;

· wz1000 opened on Oct 17, 2020

Apply nothunks to ghcide and dependencies

HackathonThis issue is suitable for hackathon sessionsThis issue is suitable for hackathon sessions

level: easyThe issue is suited for beginnersThe issue is suited for beginners

performanceIssues about memory consumption, responsiveness, etc.Issues about memory consumption, responsiveness, etc.

type: enhancementNew feature or requestNew feature or request

Status: Open.

#736 In haskell/haskell-language-server;

· pepeiborra opened on Sep 27, 2020

1 comment

Encourage space-leak correct value storage

component: ghcide

performanceIssues about memory consumption, responsiveness, etc.Issues about memory consumption, responsiveness, etc.

type: enhancementNew feature or requestNew feature or request

Status: Open.

#749 In haskell/haskell-language-server;

· ndmitchell opened on Sep 6, 2020

1 comment

Is disabling idle GC measurably better?

performanceIssues about memory consumption, responsiveness, etc.Issues about memory consumption, responsiveness, etc.

type: enhancementNew feature or requestNew feature or request

Status: Open.

#788 In haskell/haskell-language-server;

· mpickering opened on Mar 29, 2020

4 comments

[documentation] Experiment using concurrent garbage collector

documentation

performanceIssues about memory consumption, responsiveness, etc.Issues about memory consumption, responsiveness, etc.

type: enhancementNew feature or requestNew feature or request

Status: Open.

#789 In haskell/haskell-language-server;

· mpickering opened on Mar 27, 2020

13 comments