CLOSED TREE
--HG--
extra : amend_source : 7618f27e1cf71347f12384935374d303d5c1ab23
extra : histedit_source : 1143d226673ace563bb5d9ff3c420ded33439791%2C9746a30097304bd2214a0072773dc00c767d31cd
For the Obama wikipedia page, this covers about 85% of the unmeasured
ComputedValues structs. The about:memory output looks like this:
> +---2,443,648 B (02.41%) -- computed-values
> | +--1,088,272 B (01.07%) -- dom
> | +----945,744 B (00.93%) -- non-dom
> | +----409,632 B (00.40%) -- visited
I'm not sure why some CVs are still being missed.
MozReview-Commit-ID: 1bYWwSi4ihn
--HG--
extra : rebase_source : 14e4bd36a54bbbd8fd265f559704bec5a5e3b154
GTK is definitely not thread-safe, and unless proven otherwise, I suspect the
other widgets aren't either.
Mutex the calls to get the system color stuff.
There are chances to make this more fine-grained moving the mutexes into the
specific widget code and when needed. That is more analysis work which I'm not
sure we should waste time on, since the chances on racing here seem quite
unlikely in practice (system colors are uncommon enough in content, I guess).
MozReview-Commit-ID: AOQQ2jtkgpx
Bindgen bitfield enums don't work as return values with the Linux 32-bit ABI at
the moment because they wrap the value in a struct.
This causes the Rust side to believe the callee expects space for the struct
return value, while C++ believes it's just an integer value.
MozReview-Commit-ID: FRBqlZuMiAR
--HG--
extra : rebase_source : d1b2af4b965c000a5bd8e1792ae166cba5e152a9
This patch moves measurement of ComputedValues objects from Rust to C++.
Measurement now happens (a) via DOM elements and (b) remaining elements via
the frame tree. Likewise for the style structs hanging off ComputedValues
objects.
Here is an example of the output.
> ├──27,600,448 B (26.49%) -- active/window(https://en.wikipedia.org/wiki/Barack_Obama)
> │ ├──12,772,544 B (12.26%) -- layout
> │ │ ├───4,483,744 B (04.30%) -- frames
> │ │ │ ├──1,653,552 B (01.59%) ── nsInlineFrame
> │ │ │ ├──1,415,760 B (01.36%) ── nsTextFrame
> │ │ │ ├────431,376 B (00.41%) ── nsBlockFrame
> │ │ │ ├────340,560 B (00.33%) ── nsHTMLScrollFrame
> │ │ │ ├────302,544 B (00.29%) ── nsContinuingTextFrame
> │ │ │ ├────156,408 B (00.15%) ── nsBulletFrame
> │ │ │ ├─────73,024 B (00.07%) ── nsPlaceholderFrame
> │ │ │ ├─────27,656 B (00.03%) ── sundries
> │ │ │ ├─────23,520 B (00.02%) ── nsTableCellFrame
> │ │ │ ├─────16,704 B (00.02%) ── nsImageFrame
> │ │ │ ├─────15,488 B (00.01%) ── nsTableRowFrame
> │ │ │ ├─────13,776 B (00.01%) ── nsTableColFrame
> │ │ │ └─────13,376 B (00.01%) ── nsTableFrame
> │ │ ├───3,412,192 B (03.28%) -- servo-style-structs
> │ │ │ ├──1,288,224 B (01.24%) ── Display
> │ │ │ ├────742,400 B (00.71%) ── Position
> │ │ │ ├────308,736 B (00.30%) ── Font
> │ │ │ ├────226,512 B (00.22%) ── Background
> │ │ │ ├────218,304 B (00.21%) ── TextReset
> │ │ │ ├────214,896 B (00.21%) ── Text
> │ │ │ ├────130,560 B (00.13%) ── Border
> │ │ │ ├─────81,408 B (00.08%) ── UIReset
> │ │ │ ├─────61,440 B (00.06%) ── Padding
> │ │ │ ├─────38,176 B (00.04%) ── UserInterface
> │ │ │ ├─────29,232 B (00.03%) ── Margin
> │ │ │ ├─────21,824 B (00.02%) ── sundries
> │ │ │ ├─────20,080 B (00.02%) ── Color
> │ │ │ ├─────20,080 B (00.02%) ── Column
> │ │ │ └─────10,320 B (00.01%) ── Effects
> │ │ ├───2,227,680 B (02.14%) -- computed-values
> │ │ │ ├──1,182,928 B (01.14%) ── non-dom
> │ │ │ └──1,044,752 B (01.00%) ── dom
> │ │ ├───1,500,016 B (01.44%) ── text-runs
> │ │ ├─────492,640 B (00.47%) ── line-boxes
> │ │ ├─────326,688 B (00.31%) ── frame-properties
> │ │ ├─────301,760 B (00.29%) ── pres-shell
> │ │ ├──────27,648 B (00.03%) ── pres-contexts
> │ │ └─────────176 B (00.00%) ── style-sets
The 'servo-style-structs' and 'computed-values' sub-trees are new. (Prior to
this patch, ComputedValues under DOM elements were tallied under the the
'dom/element-nodes' sub-tree, and ComputedValues not under DOM element were
ignored.) 'servo-style-structs/sundries' aggregates all the style structs that
are smaller than 8 KiB.
Other notable things done by the patch are as follows.
- It significantly changes the signatures of the methods measuring nsINode and
its subclasses, in order to handle the tallying of style structs separately
from element-nodes. Likewise for nsIFrame.
- It renames the 'layout/style-structs' sub-tree as
'layout/gecko-style-structs', to clearly distinguish it from the new
'layout/servo-style-structs' sub-tree.
- It adds some FFI functions to access various Rust-side data structures from
C++ code.
- There is a nasty hack used twice to measure Arcs, by stepping backwards from
an interior pointer to a base pointer. It works, but I want to replace it
with something better eventually. The "XXX WARNING" comments have details.
- It makes DMD print a line to the console if it sees a pointer it doesn't
recognise. This is useful for detecting when we are measuring an interior
pointer instead of a base pointer, which is bad but easy to do when Arcs are
involved.
- It removes the Rust code for measuring CVs, because it's now all done on the
C++ side.
MozReview-Commit-ID: BKebACLKtCi
--HG--
extra : rebase_source : 4d9a8c6b198a0ff025b811759a6bfa9f33a260ba
Deduplicating code is nice, and it will help us when we make the bit
propagation more complicated in upcoming patches.
MozReview-Commit-ID: KIQnNJVayrM
In this path, implement conversion method from CounterStylePtr to CounterStyleOrNone since we need this to implement clone_list_style_type method.
MozReview-Commit-ID: Fmyc50WQU4C
Unfortunately this means that we lose the NS_STYLE_INHERIT_BIT optimization to
avoid posting changes if we had not requested the struct. In practice, I'm not
sure this optimization matters much, though, and we already compare all the
structs anyway.
We _could_ keep a weak parent pointer from the text style if needed, given we're
going to keep alive the text style at least until the parent style context goes
away, so should be safe, but I don't think the extra churn is worth it, to be
honest. Happy to do so as part of bug 1368290 if you think it's worth it.
MozReview-Commit-ID: ka6tNwf4Ke
--HG--
extra : rebase_source : dd6e98cf5743a8dd2e959ca09ed9a17e52b201e9
The patch provides FFI access to Gecko's SeenPtrs type from Rust, in order to
record what has already been measured when measuring Arcs. (The SeenPtrs must
be initialized on the Gecko side because the same table is reused for measuring
all Elements within a window, because Elements can share ComputedValues.) I
have confirmed with DMD that this is working correctly.
The patch also introduces MallocSizeOfRepeats, which is like MallocSizeOf but
takes a SizeOfState, which holds a SeenPtrs table.
MozReview-Commit-ID: DHS8zvCsEdQ
--HG--
extra : rebase_source : acf4d7909abf6ceb1719331ccf2e33137eb6dc91
For an import loop sheet, set the URIs and principal, and mark it complete, so
that it can still be properly accessed via CSSOM without errors.
MozReview-Commit-ID: 1oO1LoaPk8V
--HG--
extra : rebase_source : 2de1e8e03a2e8934710c2f2631f771bc067923d3
Without this mValue may end up looking like a valid nsCSSValue object and bad
things will happen when we try to clone it.
We could just assign mem::zeroed() to mValue but this array hacking on the Servo
side is already pretty nasty and mSimulateComputeValuesFailure would still
remain unassigned (and if we did try to assign it on the Servo side we'd need to
only assign it in debug builds). Unless this proves performance-critical, it's
probably best to just do this on the Gecko side.
MozReview-Commit-ID: 75nFsflhZUM
--HG--
extra : rebase_source : 0e5d94a7f6fdb6768983ba440a3ea69d65cbffbf
This patch also removes the duplication of style contexts during the
restyle, because otherwise pointer equality of ServoComputedValues stops
holding (and we assert on that in a few places)
MozReview-Commit-ID: 7Evc1p8ZfM2
Both Servo and Gecko store the specified value of the image-orientation
property as a single-precision float, but Gecko does the conversion to radians
and the computation to identify which quarter-turn the angle is closest to
using doubles.
We add Angle::radians64 to perform the conversion to radians using doubles,
just as Gecko does, and then update image_orientation to perform the
computation the same exact way Gecko does in
nsStyleImageOrientation::CreateAsAngleAndFlip. This lets the previously failing
reftests pass.
We also update Gecko_SetImageOrientation to take an orientation directly
instead of an angle (otherwise we'd be doing the which-quarter-turn-is-closest
computation twice).
Finally this lets us re-enable the reftests for image-orientation previously
marked as fails-if(styloVsGecko||stylo).
MozReview-Commit-ID: 2zMMzQlsYEC
--HG--
extra : rebase_source : 99ed023e940193d4ad735a9ee27e45929a1efda1
Both Servo and Gecko store the specified value of the image-orientation
property as a single-precision float, but Gecko does the conversion to radians
and the computation to identify which quarter-turn the angle is closest to
using doubles.
We add Angle::radians64 to perform the conversion to radians using doubles,
just as Gecko does, and then update image_orientation to perform the
computation the same exact way Gecko does in
nsStyleImageOrientation::CreateAsAngleAndFlip. This lets the previously failing
reftests pass.
We also update Gecko_SetImageOrientation to take an orientation directly
instead of an angle (otherwise we'd be doing the which-quarter-turn-is-closest
computation twice).
Finally this lets us re-enable the reftests for image-orientation previously
marked as fails-if(styloVsGecko||stylo).
MozReview-Commit-ID: 2zMMzQlsYEC
--HG--
extra : rebase_source : c6ead4358a2b4fb052f6144959cea0ba79b985e2
Nazım Can Altınova
Gregory Szorc
Nicholas Nethercote
Emilio Cobos Álvarez
Bobby Holley
J. Ryan Stinnett
Xidorn Quan
Daisuke Akatsuka
Josh Matthews
Cameron McCormack
Manish Goregaokar
Sebastian Hengst
Brian Birtles
Jonathan Chan