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fs: add bufferSize option to fs.opendir() #30114

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addaleax
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Add an option that controls the size of the internal
buffer.

Fixes: #29941

Checklist
  • make -j4 test (UNIX), or vcbuild test (Windows) passes
  • tests and/or benchmarks are included
  • documentation is changed or added
  • commit message follows commit guidelines

@addaleax
fs: add bufferSize option to fs.opendir()
ac9b36b 
Add an option that controls the size of the internal
buffer.

Fixes: nodejs#29941
@nodejs-github-bot nodejs-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. labels Oct 25, 2019
@duffleit
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What a mob programming session 🙌🏻😀

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jdjuan commented Oct 25, 2019

300 people watched the process of this PR during @scriptconf Great job!!!!!

richardlau
richardlau reviewed Oct 25, 2019
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drdreo commented Oct 25, 2019

Can approve that all tests were done

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CI: https://ci.nodejs.org/job/node-test-pull-request/26194/

@Trott
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Trott commented Oct 25, 2019

bufferSize will need to be added to test/benchmark/test-benchmark-fs.js

Speaking of which: Needs tests. (Just forgot to git add them maybe? You checked the box for tests and I know it's not like you to not have tests. :-D )

cjihrig
cjihrig reviewed Oct 25, 2019
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@addaleax
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bufferSize will need to be added to test/benchmark/test-benchmark-fs.js

Done, thanks!

Speaking of which: Needs tests. (Just forgot to git add them maybe? You checked the box for tests and I know it's not like you to not have tests. :-D )

I checked the box because I added benchmarks that measure the performance impact – I don’t think this is something that we could test for well without digging into internals.

@addaleax addaleax requested a review from Fishrock123 October 25, 2019 20:39
@addaleax addaleax added the semver-minor PRs that contain new features and should be released in the next minor version. label Oct 25, 2019
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bufferSize will need to be added to test/benchmark/test-benchmark-fs.js

Done, thanks!

Speaking of which: Needs tests. (Just forgot to git add them maybe? You checked the box for tests and I know it's not like you to not have tests. :-D )

I checked the box because I added benchmarks that measure the performance impact – I don’t think this is something that we could test for well without digging into internals.

Test passing non-numbers/negative numbers/zero/non-integers as bufferSize?

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Trott commented Oct 25, 2019 •
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Test passing non-numbers/negative numbers/zero/non-integers as bufferSize?

And maybe one test for 32 and one other reasonable positive integer to confirm that it doesn't throw in those cases?

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@Trott @richardlau I guess, yes – added tests for the error condition/that it works when using a positive integer value.

richardlau
richardlau approved these changes Oct 25, 2019
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@addaleax @richardlau
fixup! fs: add bufferSize option to fs.opendir()
2119b4c 
Co-Authored-By: Richard Lau <riclau@uk.ibm.com>
@addaleax addaleax added the author ready PRs that have at least one approval, no pending requests for changes, and a CI started. label Oct 26, 2019
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CI: https://ci.nodejs.org/job/node-test-pull-request/26206/

cjihrig
cjihrig approved these changes Oct 26, 2019
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CI: https://ci.nodejs.org/job/node-test-pull-request/26218/

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CI: https://ci.nodejs.org/job/node-test-pull-request/26232/

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CI: https://ci.nodejs.org/job/node-test-pull-request/26234/

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Landed in b35181f 🎉

@addaleax addaleax closed this Oct 28, 2019
addaleax added a commit that referenced this pull request Oct 28, 2019
@addaleax
fs: add bufferSize option to fs.opendir()
b35181f 
Add an option that controls the size of the internal
buffer.

Fixes: #29941

PR-URL: #30114
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
@addaleax addaleax deleted the fs-opendir-buffersize branch October 28, 2019 13:35
This was referenced Oct 31, 2019
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targos pushed a commit that referenced this pull request Nov 5, 2019
@addaleax @targos
fs: add bufferSize option to fs.opendir()
07b5584 
Add an option that controls the size of the internal
buffer.

Fixes: #29941

PR-URL: #30114
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
targos added a commit that referenced this pull request Nov 5, 2019
@targos
2019-11-05, Version 13.1.0 (Current)
64eacd8 
Notable changes:

* cli:
  * Added a new flag (`--trace-uncaught`) that makes Node.js print the
    stack trace at the time of throwing uncaught exceptions, rather than
    at the creation of the `Error` object, if there is any. This is
    disabled by default because it affects GC behavior.
    #30025
* crypto
  * Added `Hash.prototype.copy()` method. It returns a new `Hash` object
    with its internal state cloned from the original one.
    #29910
* dgram
  * Added source-specific multicast support. This adds methods to
    Datagram sockets to support RFC 4607
    (https://tools.ietf.org/html/rfc4607) for IPv4 and IPv6.
    #15735
* fs
  * Added a `bufferSize` option to `fs.opendir()`. It allows to control
    the number of entries that are buffered internally when reading from
    the directory. #30114
* meta
  * Added Chengzhong Wu (https://github.com/legendecas) to
    collaborators. #30115

PR-URL: #30262
@targos targos mentioned this pull request Nov 5, 2019
Merged
targos added a commit that referenced this pull request Nov 5, 2019
@targos
2019-11-05, Version 13.1.0 (Current)
309e1ea 
Notable changes:

* cli:
  * Added a new flag (`--trace-uncaught`) that makes Node.js print the
    stack trace at the time of throwing uncaught exceptions, rather than
    at the creation of the `Error` object, if there is any. This is
    disabled by default because it affects GC behavior.
    #30025
* crypto
  * Added `Hash.prototype.copy()` method. It returns a new `Hash` object
    with its internal state cloned from the original one.
    #29910
* dgram
  * Added source-specific multicast support. This adds methods to
    Datagram sockets to support RFC 4607
    (https://tools.ietf.org/html/rfc4607) for IPv4 and IPv6.
    #15735
* fs
  * Added a `bufferSize` option to `fs.opendir()`. It allows to control
    the number of entries that are buffered internally when reading from
    the directory. #30114
* meta
  * Added Chengzhong Wu (https://github.com/legendecas) to
    collaborators. #30115

PR-URL: #30262
MylesBorins pushed a commit that referenced this pull request Jan 12, 2020
@addaleax @MylesBorins
fs: add bufferSize option to fs.opendir()
ba5683c 
Add an option that controls the size of the internal
buffer.

Fixes: #29941

PR-URL: #30114
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
@targos targos mentioned this pull request Jan 15, 2020
Closed
BethGriggs pushed a commit that referenced this pull request Feb 6, 2020
@addaleax @BethGriggs
fs: add bufferSize option to fs.opendir()
785aa86 
Add an option that controls the size of the internal
buffer.

Fixes: #29941

PR-URL: #30114
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
@MylesBorins MylesBorins mentioned this pull request Feb 8, 2020
Merged
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@jasnell jasnell jasnell approved these changes

@Trott Trott Trott approved these changes

@cjihrig cjihrig cjihrig approved these changes

@richardlau richardlau richardlau approved these changes

@Fishrock123 Fishrock123 Awaiting requested review from Fishrock123

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fs.Dir.read() is very slow
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