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Tracking Issue for Coroutine Memory Usage #69826

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2 of 7 tasks
jonas-schievink opened this issue Mar 8, 2020 · 4 comments
Open
2 of 7 tasks

Tracking Issue for Coroutine Memory Usage #69826

jonas-schievink opened this issue Mar 8, 2020 · 4 comments
Labels
A-async-await Area: Async & Await A-codegen Area: Code generation A-coroutines Area: Coroutines AsyncAwait-Triaged Async-await issues that have been triaged during a working group meeting. F-coroutines `#![feature(coroutines)]` I-heavy Issue: Problems and improvements with respect to binary size of generated code. metabug Issues about issues themselves ("bugs about bugs") T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.

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@jonas-schievink
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jonas-schievink commented Mar 8, 2020 •
edited by oli-obk
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(old issue: #52924)

This issue tracks ideas for reducing the memory footprint of coroutines.

Note that this issue is different from #69663, which tracks typesystem-level improvements regarding coroutines. This issue is purely about the code generation aspect.
@jonas-schievink jonas-schievink added A-codegen Area: Code generation T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. C-tracking-issue Category: An issue tracking the progress of sth. like the implementation of an RFC A-coroutines Area: Coroutines I-heavy Issue: Problems and improvements with respect to binary size of generated code. A-async-await Area: Async & Await F-coroutines `#![feature(coroutines)]` labels Mar 8, 2020
This was referenced Mar 8, 2020
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Open
@tmandry tmandry added the AsyncAwait-Triaged Async-await issues that have been triaged during a working group meeting. label Mar 17, 2020
@tmandry tmandry mentioned this issue Apr 21, 2020
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@Matthias247 Matthias247 mentioned this issue Mar 25, 2021
Merged
tylerwhall added a commit to tylerwhall/rmp-futures that referenced this issue Apr 21, 2022
@tylerwhall
reduce async call depth
53f5c14 
Unfortunately Rust doesn't inline async functions, even for tail calls.
Each level of indirection adds to the state size and that can scale with
the amount of calls into the library.

Remove some avoidable uses of async to help memory usage somewhat until
Rust fixes these issues.

rust-lang/rust#69826
@pnkfelix
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pnkfelix commented Sep 9, 2022

Visiting during T-compiler backlog bonanza. This isn't the same kind of "tracking issue" that we associated with the C-tracking-issue label (in terms of a specific feature being designed)

@rustbot label: +metabug -C-tracking-issue

@rustbot rustbot added metabug Issues about issues themselves ("bugs about bugs") and removed C-tracking-issue Category: An issue tracking the progress of sth. like the implementation of an RFC labels Sep 9, 2022
@oli-obk
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oli-obk commented Sep 9, 2022

This is now being tracked as a github project: https://github.com/orgs/rust-lang/projects/21/views/1?layout=board

@Thomasdezeeuw
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This is now being tracked as a github project: https://github.com/orgs/rust-lang/projects/21/views/1?layout=board

@oli-obk that link is either incorrect or the project is private, in either case it doesn't work

@oli-obk
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oli-obk commented Sep 9, 2022

hmm

Only organization owners can change project visibility.

Looking how to fix that, sorry

@Swatinem Swatinem mentioned this issue Jan 25, 2023
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@anderspapitto anderspapitto mentioned this issue Jul 26, 2023
Closed
@oli-obk oli-obk changed the title Tracking Issue for Generator Memory Usage Tracking Issue for Coroutine Memory Usage Oct 21, 2023
jplatte added a commit to matrix-org/matrix-rust-sdk that referenced this issue Nov 3, 2023
@jplatte
base: Box large RoomInfo fields
8ee015b 
RoomInfo is often passed around by value, including in futures where
holding types with a large stack size is especially problematic¹.
It might make sense to move the actual data of (Base)RoomInfo into
an inner struct that is always held inside a Box or Arc, but this change
should have most of the benefits of that while being a bit simpler.

¹ rust-lang/rust#69826
jplatte added a commit to matrix-org/matrix-rust-sdk that referenced this issue Nov 3, 2023
@jplatte
base: Box large RoomInfo fields
339d6b2 
RoomInfo is often passed around by value, including in futures where
holding types with a large stack size is especially problematic¹.
It might make sense to move the actual data of (Base)RoomInfo into
an inner struct that is always held inside a Box or Arc, but this change
should have most of the benefits of that while being a bit simpler.

¹ rust-lang/rust#69826
jplatte added a commit to matrix-org/matrix-rust-sdk that referenced this issue Nov 3, 2023
@jplatte
base: Box large RoomInfo fields
dc86835 
RoomInfo is often passed around by value, including in futures where
holding types with a large stack size is especially problematic¹.
It might make sense to move the actual data of (Base)RoomInfo into
an inner struct that is always held inside a Box or Arc, but this change
should have most of the benefits of that while being a bit simpler.

¹ rust-lang/rust#69826
ti-chi-bot bot added a commit to tikv/tikv that referenced this issue Feb 21, 2024
@overvenus @ti-chi-bot
*: remove unnecessary async blocks to save memory (#16541)
66847e9 
close #16540

*: enable linters about async and futures
  We should be pedantic about writing async code, as it's easy to write
  suboptimal or even bloat code.
  See: rust-lang/rust#69826

*: remove unnecessary async blocks to save memory
  This commit favors FutureExt::map over async blocks to mitigate
  the issue of async block doubled memory usage. Through the sysbench
  oltp_read_only test, it was observed that this adjustment resulted
  in approximately 26% reduction in memory usage.
  See: rust-lang/rust#59087

Signed-off-by: Neil Shen <overvenus@gmail.com>

Co-authored-by: ti-chi-bot[bot] <108142056+ti-chi-bot[bot]@users.noreply.github.com>
ti-chi-bot bot pushed a commit to tikv/tikv that referenced this issue Mar 18, 2024
@ti-chi-bot @overvenus
*: remove unnecessary async blocks to save memory (#16541) (#16644)
a3c827b 
close #16540

*: enable linters about async and futures
  We should be pedantic about writing async code, as it's easy to write
  suboptimal or even bloat code.
  See: rust-lang/rust#69826

*: remove unnecessary async blocks to save memory
  This commit favors FutureExt::map over async blocks to mitigate
  the issue of async block doubled memory usage. Through the sysbench
  oltp_read_only test, it was observed that this adjustment resulted
  in approximately 26% reduction in memory usage.
  See: rust-lang/rust#59087

Signed-off-by: Neil Shen <overvenus@gmail.com>

Co-authored-by: Neil Shen <overvenus@gmail.com>
dbsid pushed a commit to dbsid/tikv that referenced this issue Mar 24, 2024
@overvenus @ti-chi-bot @dbsid
*: remove unnecessary async blocks to save memory (tikv#16541)
55b3a52 
close tikv#16540

*: enable linters about async and futures
  We should be pedantic about writing async code, as it's easy to write
  suboptimal or even bloat code.
  See: rust-lang/rust#69826

*: remove unnecessary async blocks to save memory
  This commit favors FutureExt::map over async blocks to mitigate
  the issue of async block doubled memory usage. Through the sysbench
  oltp_read_only test, it was observed that this adjustment resulted
  in approximately 26% reduction in memory usage.
  See: rust-lang/rust#59087

Signed-off-by: Neil Shen <overvenus@gmail.com>

Co-authored-by: ti-chi-bot[bot] <108142056+ti-chi-bot[bot]@users.noreply.github.com>
Signed-off-by: dbsid <chenhuansheng@pingcap.com>
ti-chi-bot bot added a commit to tikv/tikv that referenced this issue May 22, 2024
@ti-chi-bot @overvenus @ti-chi-bot
*: remove unnecessary async blocks to save memory (#16541) (#16669)
0df42b7 
close #16540

*: enable linters about async and futures
  We should be pedantic about writing async code, as it's easy to write
  suboptimal or even bloat code.
  See: rust-lang/rust#69826

*: remove unnecessary async blocks to save memory
  This commit favors FutureExt::map over async blocks to mitigate
  the issue of async block doubled memory usage. Through the sysbench
  oltp_read_only test, it was observed that this adjustment resulted
  in approximately 26% reduction in memory usage.
  See: rust-lang/rust#59087

Signed-off-by: Neil Shen <overvenus@gmail.com>

Co-authored-by: Neil Shen <overvenus@gmail.com>
Co-authored-by: ti-chi-bot[bot] <108142056+ti-chi-bot[bot]@users.noreply.github.com>
@purplesyringa purplesyringa mentioned this issue Nov 30, 2024
Closed
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A-async-await Area: Async & Await A-codegen Area: Code generation A-coroutines Area: Coroutines AsyncAwait-Triaged Async-await issues that have been triaged during a working group meeting. F-coroutines `#![feature(coroutines)]` I-heavy Issue: Problems and improvements with respect to binary size of generated code. metabug Issues about issues themselves ("bugs about bugs") T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
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@pnkfelix @oli-obk @jonas-schievink @tmandry @Thomasdezeeuw @rustbot