Paths

Table of Contentst

Differential D19545

Count lines in build log slices more cheaply
ClosedPublic
Actions

Authored by epriestley on Jul 27 2018, 8:33 PM.

Tags

None

Referenced Files

	Unknown Object (File)
	Thu, Apr 25, 1:26 AM

	Unknown Object (File)
	Wed, Apr 24, 9:42 AM

	Unknown Object (File)
	Apr 6 2024, 12:10 AM

	Unknown Object (File)
	Mar 23 2024, 9:20 AM

	Unknown Object (File)
	Feb 24 2024, 4:41 PM

	Unknown Object (File)
	Jan 31 2024, 1:21 PM

	Unknown Object (File)
	Jan 15 2024, 9:56 AM

	Unknown Object (File)
	Dec 22 2023, 12:06 AM

View All 68 Files

Subscribers

Restricted Owners Package

Details

Reviewers

Maniphest Tasks

T13164: Plans: 2018 Week 31 - 33 Bonus Content

Commits

rP9cf3b3bbf806: Count lines in build log slices more cheaply

Summary

See PHI766. Ref T13164. Build log chunk processing does a preg_split() on slices, but this isn't terribly efficient.

We can get the same count more cheaply by just using substr_count() a few times.

(I also tried preg_match_all(), which was between the two in speed.)

Test Plan

Used bin/harbormaster rebuild-log --id X --force to rebuild logs. Verified that the linemap is identical before/after this change.
Saw local time for the 18MB log in PHI766 drop from ~1.7s to ~900ms, and preg_split() drop out of the profiler (we're now spending the biggest chunk of time on gzdeflate()).

Diff Detail

Repository

Branch

buildlog1

Lint

Lint Passed

Unit

Tests Passed

Build Status

Buildable 20526
Build 27876: Run Core Tests
Build 27875: arc lint + arc unit

Event Timeline

epriestley created this revision.Jul 27 2018, 8:33 PM

Owners added a subscriber: Restricted Owners Package.Jul 27 2018, 8:33 PM

epriestley edited the test plan for this revision. (Show Details)Jul 27 2018, 8:34 PM

Harbormaster completed remote builds in B20526: Diff 46729.Jul 27 2018, 8:34 PM

epriestley requested review of this revision.Jul 27 2018, 8:34 PM

epriestley edited the summary of this revision. (Show Details)Jul 27 2018, 8:34 PM

epriestley added a task: T13164: Plans: 2018 Week 31 - 33 Bonus Content.

howneatisthat

This revision is now accepted and ready to land.Jul 29 2018, 4:05 PM

This is also mathematically equivalent to $n_r + $n_n - $n_rn I suppose, but it's probably clearer like this.

Closed by commit rP9cf3b3bbf806: Count lines in build log slices more cheaply (authored by epriestley). · Explain WhyJul 30 2018, 3:25 PM

This revision was automatically updated to reflect the committed changes.

Revision Contents
Changeset List

Path

Size

src/

applications/

harbormaster/

storage/

build/

HarbormasterBuildLog.php

8 lines

Diff 46729

src/applications/harbormaster/storage/build/HarbormasterBuildLog.php

Loading...