History

Camillo Bruni cf500ac109 [object-stats] Distinguish FeedbackVector entries Record seperate virtual instance types for entries in FeedbackVectors: - FEEDBACK_VECTOR_ENTRY_TYPE Bug: v8:7266 Change-Id: Ibea0615ecd23099e0107505e5d33cf194aade7c0 Reviewed-on: https://chromium-review.googlesource.com/866878 Commit-Queue: Camillo Bruni <cbruni@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#50678}		2018-01-18 13:00:25 +00:00
..
categories.js	[object-stats] Distinguish FeedbackVector entries	2018-01-18 13:00:25 +00:00
details-selection.html	[object-stats] CSV export and simple fixes	2018-01-18 08:41:23 +00:00
details-selection.js	[object-stats] CSV export and simple fixes	2018-01-18 08:41:23 +00:00
global-timeline.html	[tools] V8 heap stats visualizer	2018-01-15 15:27:17 +00:00
global-timeline.js	[object-stats] Add histogram	2018-01-18 11:57:35 +00:00
histogram-viewer.html	[object-stats] Add histogram	2018-01-18 11:57:35 +00:00
histogram-viewer.js	[object-stats] Add histogram	2018-01-18 11:57:35 +00:00
index.html	[object-stats] Add histogram	2018-01-18 11:57:35 +00:00
README.md	[object-stats] Add reader for Chrome's trace file format	2018-01-16 14:30:59 +00:00
trace-file-reader.html	[tools] V8 heap stats visualizer	2018-01-15 15:27:17 +00:00
trace-file-reader.js	[object-stats] CSV export and simple fixes	2018-01-18 08:41:23 +00:00

README.md

Heap Stats

Heap stats is a HTML-based tool for visualizing V8-internal object statistics. For example, the tool can be used to visualize how much heap memory is used for maintaining internal state versus actually allocated by the user.

The tool consumes log files produced by d8 (or Chromium) by passing --trace-gc-object-stats or a trace captured using Chrome's tracing infrastructure. Chrome trace files need to be unpacked before they can be used though.

Hosting requires a web server, e.g.:

cd tools/heap-stats
python -m SimpleHTTPServer 8000