Skip to content

fs: improve error performance of writevSync - #50038

Merged
nodejs-github-bot merged 1 commit into
nodejs:mainfrom
IlyasShabi:writev-sync
Oct 12, 2023
Merged

fs: improve error performance of writevSync#50038
nodejs-github-bot merged 1 commit into
nodejs:mainfrom
IlyasShabi:writev-sync

Conversation

@IlyasShabi

@IlyasShabiIlyasShabi commented Oct 4, 2023•
edited
Loading

Copy link
Copy Markdown
Member

Local benchmark:

 confidence improvement accuracy (*) (**) (***)
fs/bench-writevSync.js n=100000 type='invalid' *** 125.24 % ±2.51% ±3.34% ±4.37%
fs/bench-writevSync.js n=100000 type='valid' *** -0.26 % ±3.07% ±4.10% ±5.34%

Ref: nodejs/performance#106

@nodejs-github-botnodejs-github-bot added c++ Issues and PRs that require attention from people who are familiar with C++. fs Issues and PRs related to the fs subsystem / file system. needs-ci PRs that need a full CI run. labels Oct 4, 2023
@IlyasShabi

IlyasShabi commented Oct 4, 2023

Copy link
Copy Markdown
MemberAuthor

Feel free to suggest improvements in the benchmark file

@Uzlopak

Uzlopak commented Oct 4, 2023

Copy link
Copy Markdown
Contributor

Afaik in c++ returning a value is slower than modifying a variable passed as parameter (by ref).

anonrig
anonrig reviewed Oct 4, 2023
View reviewed changes
Comment threadbenchmark/fs/bench-writevSync.js Outdated

@anonriganonrigOct 4, 2023

Copy link
Copy Markdown
Member

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Please add an invalid type to benchmarks

@IlyasShabiIlyasShabiOct 5, 2023

Copy link
Copy Markdown
MemberAuthor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

@anonrig I would appreciate help creating a good bench script for my first PR 🙏

Comment threadlib/fs.js Outdated
Comment threadsrc/node_file.cc Outdated

@anonriganonrigOct 4, 2023

Copy link
Copy Markdown
Member

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

This line needs to be updated.

Comment threadbenchmark/fs/bench-writevSync.js Outdated

@anonriganonrigOct 4, 2023

Copy link
Copy Markdown
Member

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

In order to remove dead code elimination store the result of this operation and assert it when the benchmark finishes.

pluris
pluris reviewed Oct 4, 2023
View reviewed changes
Comment threadlib/fs.js Outdated
pluris
pluris reviewed Oct 4, 2023
View reviewed changes
Comment threadsrc/node_file.cc Outdated
@mscdex

mscdex commented Oct 4, 2023•
edited
Loading

Copy link
Copy Markdown
Contributor

Did you swap the old and new node binary parameters when comparing the benchmarks or is that actually a 58% performance regression?

@anonriganonrig added the needs-benchmark-ci PR that need a benchmark CI run. label Oct 4, 2023
mscdex
mscdex reviewed Oct 5, 2023
View reviewed changes
Comment threadsrc/node_file.cc Outdated
@mscdex

mscdex commented Oct 5, 2023

Copy link
Copy Markdown
Contributor

FWIW the changes currently result in:

fs/bench-writevSync.js n=100000 type='valid' -0.83 % ±7.81% ±10.40% ±13.55%

I'm guessing this should instead be more about improving the error case?

anonrig
anonrig reviewed Oct 5, 2023
View reviewed changes
Comment threadbenchmark/fs/bench-writevSync.js Outdated

@anonriganonrigOct 5, 2023

Copy link
Copy Markdown
Member

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

We don't need a try/catch on valid part

Comment threadbenchmark/fs/bench-writevSync.js Outdated

@anonriganonrigOct 5, 2023

Copy link
Copy Markdown
Member

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

This is not a file descriptor. The variable name suggests fd

@IlyasShabiIlyasShabi changed the title fs: improve writevSync performancefs: improve error performance of writevSyncOct 7, 2023
@anonriganonrig added the request-ci Add this label to start a Jenkins CI on a PR. label Oct 7, 2023
@github-actionsgithub-actionsBot removed the request-ci Add this label to start a Jenkins CI on a PR. label Oct 7, 2023
@nodejs-github-bot

nodejs-github-bot commented Oct 7, 2023

Copy link
Copy Markdown
Collaborator

CI: https://ci.nodejs.org/job/node-test-pull-request/54606/

@nodejs-github-bot

nodejs-github-bot commented Oct 8, 2023

Copy link
Copy Markdown
Collaborator

CI: https://ci.nodejs.org/job/node-test-pull-request/54626/

@anonriganonrig added author ready PRs that have at least one approval, no pending requests for changes, and a CI started. review wanted PRs that need reviews. labels Oct 8, 2023
This was referenced Oct 9, 2023
Open
Open
Open
@anonriganonrig added the commit-queue Add this label to land a pull request using GitHub Actions. label Oct 12, 2023
@nodejs-github-botnodejs-github-bot removed the commit-queue Add this label to land a pull request using GitHub Actions. label Oct 12, 2023
@nodejs-github-bot
nodejs-github-bot merged commit bf0f078 into nodejs:mainOct 12, 2023
@nodejs-github-bot

nodejs-github-bot commented Oct 12, 2023

Copy link
Copy Markdown
Collaborator

Landed in bf0f078

@RafaelGSSRafaelGSS mentioned this pull request Oct 15, 2023
Merged
targos pushed a commit that referenced this pull request Nov 11, 2023
@IlyasShabi@targos
fs: improve error performance of writevSync
eb52f73
PR-URL: #50038
Refs: nodejs/performance#106
Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>
@targostargos mentioned this pull request Nov 12, 2023
Merged
@juanarboljuanarbol mentioned this pull request Dec 6, 2023
Merged
debadree25 pushed a commit to debadree25/node that referenced this pull request Apr 15, 2024
@IlyasShabi@debadree25
fs: improve error performance of writevSync
d75f4f9
PR-URL: nodejs#50038
Refs: nodejs/performance#106
Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>
Sign up for freeto join this conversation on GitHub. Already have an account? Sign in to comment

Reviewers

@anonriganonriganonrig approved these changes
+2 more reviewers
@mscdexmscdexmscdex left review comments
@plurisplurispluris left review comments
Reviewers whose approvals may not affect merge requirements

Assignees

No one assigned

Labels

author readyPRs that have at least one approval, no pending requests for changes, and a CI started.c++Issues and PRs that require attention from people who are familiar with C++.fsIssues and PRs related to the fs subsystem / file system.needs-benchmark-ciPR that need a benchmark CI run.needs-ciPRs that need a full CI run.review wantedPRs that need reviews.

Projects

None yet

Milestone

No milestone

Development

Successfully merging this pull request may close these issues.

7 participants

@IlyasShabi@Uzlopak@mscdex@nodejs-github-bot@anonrig@pluris@ilyasShabiCS