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buffer: improve compare() performance #10927

Merged
merged 1 commit into from
Jan 25, 2017
Merged

buffer: improve compare() performance #10927

merged 1 commit into from
Jan 25, 2017

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mscdex
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@mscdex mscdex commented Jan 20, 2017 •
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Here are the results of the changes in this PR, using newly added benchmark parameters:

                                                                         improvement confidence      p.value
 buffers/buffer-compare-instance-method.js millions=20 args=1 size=1024      79.64 %        *** 1.708068e-23
 buffers/buffer-compare-instance-method.js millions=20 args=1 size=16       120.23 %        *** 4.789291e-22
 buffers/buffer-compare-instance-method.js millions=20 args=1 size=16386     29.41 %        *** 6.728233e-25
 buffers/buffer-compare-instance-method.js millions=20 args=1 size=4096      38.39 %        *** 4.356356e-22
 buffers/buffer-compare-instance-method.js millions=20 args=1 size=512       95.33 %        *** 2.836086e-27
 buffers/buffer-compare-instance-method.js millions=20 args=2 size=1024      36.68 %        *** 7.725875e-16
 buffers/buffer-compare-instance-method.js millions=20 args=2 size=16        41.81 %        *** 4.501507e-12
 buffers/buffer-compare-instance-method.js millions=20 args=2 size=16386     17.62 %        *** 1.637306e-23
 buffers/buffer-compare-instance-method.js millions=20 args=2 size=4096      24.56 %        *** 1.838687e-16
 buffers/buffer-compare-instance-method.js millions=20 args=2 size=512       36.07 %        *** 1.337825e-12
 buffers/buffer-compare-instance-method.js millions=20 args=3 size=1024      26.15 %        *** 1.077808e-10
 buffers/buffer-compare-instance-method.js millions=20 args=3 size=16        38.97 %        *** 1.267865e-12
 buffers/buffer-compare-instance-method.js millions=20 args=3 size=16386     14.94 %        *** 2.809292e-22
 buffers/buffer-compare-instance-method.js millions=20 args=3 size=4096      21.77 %        *** 7.859591e-12
 buffers/buffer-compare-instance-method.js millions=20 args=3 size=512       35.13 %        *** 1.176360e-14
 buffers/buffer-compare-instance-method.js millions=20 args=4 size=1024      24.45 %        *** 6.181133e-08
 buffers/buffer-compare-instance-method.js millions=20 args=4 size=16        35.20 %        *** 5.202743e-11
 buffers/buffer-compare-instance-method.js millions=20 args=4 size=16386     15.46 %        *** 5.231296e-23
 buffers/buffer-compare-instance-method.js millions=20 args=4 size=4096      19.14 %        *** 1.193200e-09
 buffers/buffer-compare-instance-method.js millions=20 args=4 size=512       32.69 %        *** 1.456810e-14
 buffers/buffer-compare-instance-method.js millions=20 args=5 size=1024      20.11 %        *** 8.825567e-08
 buffers/buffer-compare-instance-method.js millions=20 args=5 size=16        26.04 %        *** 3.350537e-10
 buffers/buffer-compare-instance-method.js millions=20 args=5 size=16386     13.36 %        *** 2.349793e-18
 buffers/buffer-compare-instance-method.js millions=20 args=5 size=4096      19.60 %        *** 8.104786e-12
 buffers/buffer-compare-instance-method.js millions=20 args=5 size=512       22.01 %        *** 1.282699e-08

CI: https://ci.nodejs.org/job/node-test-pull-request/5971/

Checklist
  • make -j4 test (UNIX), or vcbuild test (Windows) passes
  • tests and/or benchmarks are included
  • commit message follows commit guidelines
Affected core subsystem(s)
  • buffer

@mscdex mscdex added buffer Issues and PRs related to the buffer subsystem. performance Issues and PRs related to the performance of Node.js. labels Jan 20, 2017
@nodejs-github-bot nodejs-github-bot added dont-land-on-v7.x buffer Issues and PRs related to the buffer subsystem. labels Jan 20, 2017
@mscdex
buffer: improve compare() performance
9e0f6a5 
PR-URL: nodejs#10927
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
@mscdex mscdex merged commit 9e0f6a5 into nodejs:master Jan 25, 2017
@mscdex mscdex mentioned this pull request Jan 25, 2017
Closed
@mscdex mscdex deleted the buffer-compare-perf branch January 25, 2017 06:52
targos pushed a commit that referenced this pull request Jan 28, 2017
@mscdex @targos
buffer: improve compare() performance
594ccb0 
PR-URL: #10927
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
@italoacasas italoacasas mentioned this pull request Jan 29, 2017
Merged
italoacasas pushed a commit to italoacasas/node that referenced this pull request Jan 30, 2017
@mscdex @italoacasas
buffer: improve compare() performance
d13aba8 
PR-URL: nodejs#10927
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
italoacasas pushed a commit to italoacasas/node that referenced this pull request Jan 30, 2017
@mscdex @italoacasas
buffer: improve compare() performance
459a8a6 
PR-URL: nodejs#10927
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
jasnell pushed a commit that referenced this pull request Mar 8, 2017
@mscdex @jasnell
buffer: improve compare() performance
9d37abb 
PR-URL: #10927
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
@jasnell
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jasnell commented Mar 8, 2017

This would need a backport PR if it should land on v4. Landed on v6

MylesBorins pushed a commit that referenced this pull request Mar 9, 2017
@mscdex @MylesBorins
buffer: improve compare() performance
e397e6f 
PR-URL: #10927
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
@MylesBorins MylesBorins mentioned this pull request Mar 9, 2017
Merged
MylesBorins added a commit that referenced this pull request Mar 21, 2017
@MylesBorins
2017-03-21, Version 6.10.1 'Boron' (LTS)
e70d0b0 
Notable changes

* performance: The performance of several APIs has been improved.
  - `Buffer.compare()` is up to 35% faster on average. (Brian White)
    #10927
  - `buffer.toJSON()` is up to 2859% faster on average. (Brian White)
    #10895
  - `fs.*statSync()` functions are now up to 9.3% faster on average.
    (Brian White) #11522
  - `os.loadavg` is up to 151% faster. (Brian White)
    #11516
  - `process.memoryUsage()` is up to 34% faster. (Brian White)
    #11497
  - `querystring.unescape()` for `Buffer`s is 15% faster on average.
    (Brian White) #10837
  - `querystring.stringify()` is up to 7.8% faster on average.
    (Brian White) #10852
  - `querystring.parse()` is up to 21% faster on average. (Brian White)
    #10874

* IPC:
  - Batched writes have been enabled for process IPC on platforms that
    support Unix Domain Sockets. (Alexey Orlenko)
    #10677
  - Performance gains may be up to 40% for some workloads.

* child_process:
  - `spawnSync` now returns a null `status` when child is terminated by
    a signal. (cjihrig) #11288
  - This fixes the behavior to act like `spawn()` does.

* http:
  - Control characters are now always rejected when using
    `http.request()`. (Ben Noordhuis)
    #8923
  - Debug messages have been added for cases when headers contain
    invalid values. (Evan Lucas)
    #9195

* node:
  - Heap statistics now support values larger than 4GB. (Ben Noordhuis)
    #10186

* timers:
  - Timer callbacks now always maintain order when interacting with
    domain error handling. (John Barboza)
    #10522

PR-URL: #11759
MylesBorins added a commit that referenced this pull request Mar 21, 2017
@MylesBorins
2017-03-21, Version 6.10.1 'Boron' (LTS)
2569c90 
Notable changes

* performance: The performance of several APIs has been improved.
  - `Buffer.compare()` is up to 35% faster on average. (Brian White)
    #10927
  - `buffer.toJSON()` is up to 2859% faster on average. (Brian White)
    #10895
  - `fs.*statSync()` functions are now up to 9.3% faster on average.
    (Brian White) #11522
  - `os.loadavg` is up to 151% faster. (Brian White)
    #11516
  - `process.memoryUsage()` is up to 34% faster. (Brian White)
    #11497
  - `querystring.unescape()` for `Buffer`s is 15% faster on average.
    (Brian White) #10837
  - `querystring.stringify()` is up to 7.8% faster on average.
    (Brian White) #10852
  - `querystring.parse()` is up to 21% faster on average. (Brian White)
    #10874

* IPC:
  - Batched writes have been enabled for process IPC on platforms that
    support Unix Domain Sockets. (Alexey Orlenko)
    #10677
  - Performance gains may be up to 40% for some workloads.

* child_process:
  - `spawnSync` now returns a null `status` when child is terminated by
    a signal. (cjihrig) #11288
  - This fixes the behavior to act like `spawn()` does.

* http:
  - Control characters are now always rejected when using
    `http.request()`. (Ben Noordhuis)
    #8923
  - Debug messages have been added for cases when headers contain
    invalid values. (Evan Lucas)
    #9195

* node:
  - Heap statistics now support values larger than 4GB. (Ben Noordhuis)
    #10186

* timers:
  - Timer callbacks now always maintain order when interacting with
    domain error handling. (John Barboza)
    #10522

PR-URL: #11759
imyller added a commit to imyller/meta-nodejs that referenced this pull request Apr 20, 2017
@imyller
2017-03-21, Version 6.10.1 'Boron' (LTS)
ccdb8bf 
    Notable changes

    * performance: The performance of several APIs has been improved.
      - `Buffer.compare()` is up to 35% faster on average. (Brian White)
        nodejs/node#10927
      - `buffer.toJSON()` is up to 2859% faster on average. (Brian White)
        nodejs/node#10895
      - `fs.*statSync()` functions are now up to 9.3% faster on average.
        (Brian White) nodejs/node#11522
      - `os.loadavg` is up to 151% faster. (Brian White)
        nodejs/node#11516
      - `process.memoryUsage()` is up to 34% faster. (Brian White)
        nodejs/node#11497
      - `querystring.unescape()` for `Buffer`s is 15% faster on average.
        (Brian White) nodejs/node#10837
      - `querystring.stringify()` is up to 7.8% faster on average.
        (Brian White) nodejs/node#10852
      - `querystring.parse()` is up to 21% faster on average. (Brian White)
        nodejs/node#10874

    * IPC:
      - Batched writes have been enabled for process IPC on platforms that
        support Unix Domain Sockets. (Alexey Orlenko)
        nodejs/node#10677
      - Performance gains may be up to 40% for some workloads.

    * child_process:
      - `spawnSync` now returns a null `status` when child is terminated by
        a signal. (cjihrig) nodejs/node#11288
      - This fixes the behavior to act like `spawn()` does.

    * http:
      - Control characters are now always rejected when using
        `http.request()`. (Ben Noordhuis)
        nodejs/node#8923
      - Debug messages have been added for cases when headers contain
        invalid values. (Evan Lucas)
        nodejs/node#9195

    * node:
      - Heap statistics now support values larger than 4GB. (Ben Noordhuis)
        nodejs/node#10186

    * timers:
      - Timer callbacks now always maintain order when interacting with
        domain error handling. (John Barboza)
        nodejs/node#10522

    PR-URL: nodejs/node#11759

Signed-off-by: Ilkka Myller <ilkka.myller@nodefield.com>
imyller added a commit to imyller/meta-nodejs that referenced this pull request Apr 20, 2017
@imyller
2017-03-21, Version 6.10.1 'Boron' (LTS)
e47cbbd 
    Notable changes

    * performance: The performance of several APIs has been improved.
      - `Buffer.compare()` is up to 35% faster on average. (Brian White)
        nodejs/node#10927
      - `buffer.toJSON()` is up to 2859% faster on average. (Brian White)
        nodejs/node#10895
      - `fs.*statSync()` functions are now up to 9.3% faster on average.
        (Brian White) nodejs/node#11522
      - `os.loadavg` is up to 151% faster. (Brian White)
        nodejs/node#11516
      - `process.memoryUsage()` is up to 34% faster. (Brian White)
        nodejs/node#11497
      - `querystring.unescape()` for `Buffer`s is 15% faster on average.
        (Brian White) nodejs/node#10837
      - `querystring.stringify()` is up to 7.8% faster on average.
        (Brian White) nodejs/node#10852
      - `querystring.parse()` is up to 21% faster on average. (Brian White)
        nodejs/node#10874

    * IPC:
      - Batched writes have been enabled for process IPC on platforms that
        support Unix Domain Sockets. (Alexey Orlenko)
        nodejs/node#10677
      - Performance gains may be up to 40% for some workloads.

    * child_process:
      - `spawnSync` now returns a null `status` when child is terminated by
        a signal. (cjihrig) nodejs/node#11288
      - This fixes the behavior to act like `spawn()` does.

    * http:
      - Control characters are now always rejected when using
        `http.request()`. (Ben Noordhuis)
        nodejs/node#8923
      - Debug messages have been added for cases when headers contain
        invalid values. (Evan Lucas)
        nodejs/node#9195

    * node:
      - Heap statistics now support values larger than 4GB. (Ben Noordhuis)
        nodejs/node#10186

    * timers:
      - Timer callbacks now always maintain order when interacting with
        domain error handling. (John Barboza)
        nodejs/node#10522

    PR-URL: nodejs/node#11759

Signed-off-by: Ilkka Myller <ilkka.myller@nodefield.com>
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@addaleax addaleax addaleax approved these changes

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