X Tutup
Skip to content

Make use of new Random.Shared property#18417

Merged
daxian-dbw merged 2 commits intoPowerShell:masterfrom
turbedi:random_shared
Jun 13, 2023
Merged

Make use of new Random.Shared property#18417
daxian-dbw merged 2 commits intoPowerShell:masterfrom
turbedi:random_shared

Conversation

@turbedi
Copy link
Copy Markdown
Contributor

@turbedi turbedi commented Oct 30, 2022

PR Summary

Use the new and thread-safe Random.Shared property, introduced in .NET 6
Less code, less allocations, a bit faster.

PR Context

PR Checklist

Comment on lines 52 to 56
Copy link
Copy Markdown
Contributor Author

@turbedi turbedi Oct 30, 2022

Choose a reason for hiding this comment

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

I was not 100% sure, so can someone confirm that this pattern is only to make _random thread-safe?

Copy link
Copy Markdown
Collaborator

Choose a reason for hiding this comment

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

@PaulHigin Could you please comment?

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 pattern is to protect s_globalRandom.Next() call from threads in parallel.
The _random here is created with a seed, and is guaranteed to use different seed for different instance of CimChildJobBase. I don't think this guarantee will be met when switching to Random.Shared, so I suggest reverting changes in this file to be safe.

@iSazonov iSazonov requested a review from PaulHigin October 30, 2022 06:28
@iSazonov iSazonov added the CL-CodeCleanup Indicates that a PR should be marked as a Code Cleanup change in the Change Log label Oct 30, 2022
@ghost ghost added the Review - Needed The PR is being reviewed label Nov 8, 2022
@ghost
Copy link
Copy Markdown

ghost commented Nov 8, 2022

This pull request has been automatically marked as Review Needed because it has been there has not been any activity for 7 days.
Maintainer, please provide feedback and/or mark it as Waiting on Author

@daxian-dbw daxian-dbw added the Needs-Triage The issue is new and needs to be triaged by a work group. label May 1, 2023
@pull-request-quantifier-deprecated
Copy link
Copy Markdown

This PR has 9 quantified lines of changes. In general, a change size of upto 200 lines is ideal for the best PR experience!


Quantification details

Label      : Extra Small
Size       : +4 -5
Percentile : 3.6%

Total files changed: 4

Change summary by file extension:
.cs : +4 -5

Change counts above are quantified counts, based on the PullRequestQuantifier customizations.

Why proper sizing of changes matters

Optimal pull request sizes drive a better predictable PR flow as they strike a
balance between between PR complexity and PR review overhead. PRs within the
optimal size (typical small, or medium sized PRs) mean:

  • Fast and predictable releases to production:
    • Optimal size changes are more likely to be reviewed faster with fewer
      iterations.
    • Similarity in low PR complexity drives similar review times.
  • Review quality is likely higher as complexity is lower:
    • Bugs are more likely to be detected.
    • Code inconsistencies are more likely to be detected.
  • Knowledge sharing is improved within the participants:
    • Small portions can be assimilated better.
  • Better engineering practices are exercised:
    • Solving big problems by dividing them in well contained, smaller problems.
    • Exercising separation of concerns within the code changes.

What can I do to optimize my changes

  • Use the PullRequestQuantifier to quantify your PR accurately
    • Create a context profile for your repo using the context generator
    • Exclude files that are not necessary to be reviewed or do not increase the review complexity. Example: Autogenerated code, docs, project IDE setting files, binaries, etc. Check out the Excluded section from your prquantifier.yaml context profile.
    • Understand your typical change complexity, drive towards the desired complexity by adjusting the label mapping in your prquantifier.yaml context profile.
    • Only use the labels that matter to you, see context specification to customize your prquantifier.yaml context profile.
  • Change your engineering behaviors
    • For PRs that fall outside of the desired spectrum, review the details and check if:
      • Your PR could be split in smaller, self-contained PRs instead
      • Your PR only solves one particular issue. (For example, don't refactor and code new features in the same PR).

How to interpret the change counts in git diff output

  • One line was added: +1 -0
  • One line was deleted: +0 -1
  • One line was modified: +1 -1 (git diff doesn't know about modified, it will
    interpret that line like one addition plus one deletion)
  • Change percentiles: Change characteristics (addition, deletion, modification)
    of this PR in relation to all other PRs within the repository.


Was this comment helpful? 👍  :ok_hand:  :thumbsdown: (Email)
Customize PullRequestQuantifier for this repository.

Copy link
Copy Markdown
Member

@daxian-dbw daxian-dbw left a comment

Choose a reason for hiding this comment

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

LGTM

@daxian-dbw daxian-dbw merged commit 0f53e80 into PowerShell:master Jun 13, 2023
@ghost ghost removed the Review - Needed The PR is being reviewed label Jun 13, 2023
@daxian-dbw daxian-dbw removed the Needs-Triage The issue is new and needs to be triaged by a work group. label Jun 13, 2023
@ghost
Copy link
Copy Markdown

ghost commented Jun 29, 2023

🎉v7.4.0-preview.4 has been released which incorporates this pull request.:tada:

Handy links:

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Labels

CL-CodeCleanup Indicates that a PR should be marked as a Code Cleanup change in the Change Log Extra Small

Projects

None yet

Development

Successfully merging this pull request may close these issues.

3 participants

X Tutup