Commit Graph

8332 Commits

Author SHA1 Message Date
Gerald Squelart
5f9ff13253 Bug 1663543 - Convert PROFILER_ADD_MARKER and 2-arg profiler_add_marker to PROFILER_MARKER_UNTYPED - r=gregtatum
Mostly mechanical change, with some extra work where non-literal names are provided.
Also, when this is the only profiler call in a file, `#include "GeckoProfiler.h"` can be changed to `#include "mozilla/ProfilerMarkers.h"`.

Differential Revision: https://phabricator.services.mozilla.com/D89415
2020-09-10 03:02:36 +00:00
Myeongjun Go
b53336d5a4 Bug 1653326 - [perfdocs] Add documentation about individual mozperftest tests to perfdocs r=sparky,perftest-reviewers
Differential Revision: https://phabricator.services.mozilla.com/D86488
2020-09-09 17:58:39 +00:00
Ricky Stewart
a2345d5933 Bug 1662529 - Remove reference to mach bootstrap from mach install-moz-phab in case where pip3 cannot be found r=mhentges,glob
`mach bootstrap` doesn't guarantee that it will install `pip3`for you since bug 1647814, so this is bad advice. This removes a weird self-referential loop where `mach bootstrap` recommends you run `mach install-moz-phab` which then recommends you run `mach bootstrap`.

Differential Revision: https://phabricator.services.mozilla.com/D89028
2020-09-08 16:11:42 +00:00
championshuttler
34d62b1d86 Bug 1661783 - Re-enable test_rst.py on Linux.r=rstewart
Differential Revision: https://phabricator.services.mozilla.com/D89311
2020-09-08 15:50:53 +00:00
Andrew Halberstadt
0295d6c8af Bug 1648791 - [try] Add a try preset to select build tasks, r=glandium
This can be run using:

     $ ./mach try --preset builds

The build list can be filtered further using '-xq', e.g:

    $ ./mach try --preset builds -xq "win"

Or it can be filtered further interactively:

    $ ./mach try --preset builds -xi

Finally, tasks can be added to the build list:

    $ ./mach try --preset builds -q "'windows 'mochitest"

This gives a T-style push. There is currently no way to both filter builds and
add additional tasks, it needs to be one or the other.

Differential Revision: https://phabricator.services.mozilla.com/D81352
2020-09-08 05:01:44 +00:00
Mike Hommey
aa86bba7ac Bug 1662601 - Remove fileid. r=gsvelto
The last thing that was using fileid was fix-stacks, which, as of bug
1662037, doesn't anymore.

Differential Revision: https://phabricator.services.mozilla.com/D89076
2020-09-05 05:31:28 +00:00
Gerald Squelart
5507ddc4c5 Bug 1660458 - Improve TLS initialization and usage, remove inline-able function-static init - r=canaltinova
The profiler should guarantee that TLS initializations are done only once (from `profiler_init()`), so there is no need to potentially do it at every TLS access.
Instead, the initialization functions set the TLS states once (to `Initialized` or `Unavailable`, depending on the underlying TLS initialization success), and later accesses to this effectively-read-only flag can be done without thread synchronization.
This reduces the generated code size.

There are also DEBUG-build checks that no accesses are done before initialization; this is theoretically racy, but it's only used to detect too-early accesses in DEBUG builds, which should never happen anyway.

Differential Revision: https://phabricator.services.mozilla.com/D89338
2020-09-07 23:07:38 +00:00
Sylvestre Ledru
da34b6a58e Bug 1661514 - Reformat some python files with black 20.8b1 r=rstewart
# ignore-this-changeset

Depends on D88711

Differential Revision: https://phabricator.services.mozilla.com/D88712
2020-09-07 14:05:10 +00:00
Sylvestre Ledru
acd45d10e5 Bug 1661514 - Update to black 20.8b1 r=rstewart
Differential Revision: https://phabricator.services.mozilla.com/D88711
2020-09-07 15:25:29 +00:00
Gerald Squelart
87d2667590 Bug 1662994 - Fix non-MOZ_GECKO_PROFILER_BUILD - r=canaltinova
`ProfileChunkedBuffer` needed to be fully defined, because its destructor is needed to define `UniquePtr<ProfileChunkedBuffer>`.
It can just be empty, because it won't actually be used anyway.

Added non-`MOZ_GECKO_PROFILER` tests around this.

Differential Revision: https://phabricator.services.mozilla.com/D89351
2020-09-07 10:11:16 +00:00
Andrew Halberstadt
12c83e7e26 Bug 1655750 - [tryselect] Handle --list/edit-presets even on selectors that don't support presets, r=sfink
Differential Revision: https://phabricator.services.mozilla.com/D88645
2020-09-02 19:44:49 +00:00
Bryce Seager van Dyk
a90a447c1c Bug 1649532 - Port DecoderDoctor notifications to fission. r=Gijs
Port handling of DecoderDoctor notifications for fission. This is done by moving
the observing of 'decoder-doctor-notification' from browser-media.js to fission
friendly actors.

As browser-media.js had only code related to this patch left it is removed along
with references to it. Same with ContentObservers.js.

Differential Revision: https://phabricator.services.mozilla.com/D88322
2020-08-28 18:34:24 +00:00
Gerald Squelart
b1c2892ebb Bug 1646266 - Profiler Markers 2.0 tests - r=gregtatum
Differential Revision: https://phabricator.services.mozilla.com/D87260
2020-09-02 04:03:32 +00:00
Gerald Squelart
ff8b12cb5c Bug 1646266 - {,Base}ProfilerMarkerTypes.h - r=gregtatum
This patch ports existing ProfilerMarkerPayload types to draft struct definitions that may be used with the new markers API.
This is just a starting point, they may be changed later on as needed, see meta-bug 1661394.

Differential Revision: https://phabricator.services.mozilla.com/D87259
2020-09-02 04:03:22 +00:00
Gerald Squelart
e6bd850ec0 Bug 1646266 - {BASE_,}PROFILER_MARKER{,_TEXT} - r=gregtatum
This is the main public marker API:
- `AddMarkerToBuffer` can be used to store a marker to any buffer. This could be useful to code that wants to store markers outside of the default profiler buffers.
- `baseprofiler::AddMarker`/`profiler_add_marker` store a marker in the appropriate profiler buffer.
- BASE_PROFILER_MARKER and PROFILER_MARKER do the same, but are also defined (and empty) when MOZ_GECKO_PROFILER is not #defined.
All these take a name, marker options, a marker type, and the type's expected arguments if any (as expected by the `StreamJSONMarkerData` function).

Extra helpers for the most common types:
- BASE_PROFILER_MARKER_UNTYPED and PROFILER_MARKER_UNTYPED store a marker with no data payload.
- BASE_PROFILER_MARKER_TEXT and PROFILER_MARKER_TEXT store a text marker. `baseprofiler::markers::Text` is an example of how new marker types can be defined.

Differential Revision: https://phabricator.services.mozilla.com/D87257
2020-09-02 04:03:20 +00:00
Gerald Squelart
0000b4f25a Bug 1646266 - Marker Deserialization - r=gregtatum
`DeserializeAfterKindAndStream()` is the main function that extracts all the marker data (past the already-read entry kind), and streams it to JSON using the user-provided `Stream(JSONWriter&, ...)` function in the appropriate marker type definition.

It currently requires two external functions to stream the name and the optional backtrace, because these are different between the two profilers. This may change in the future.

(Deserialization is implemented before serialization, because the `Deserialize()` function is needed during serialization to get a marker type tag.)

Differential Revision: https://phabricator.services.mozilla.com/D87254
2020-09-02 04:01:48 +00:00
Gerald Squelart
2c20225e23 Bug 1646266 - NoPayload default type, with specialized empty helper - r=gregtatum
`NoPayload` will be mostly used internally when adding markers without payload data.
It has an empty specialization of the MarkerTypeHelper (mainly to catch misuses), and the add-marker code will need to have different compile-time paths to handle it.

Differential Revision: https://phabricator.services.mozilla.com/D87252
2020-09-02 04:01:02 +00:00
Gerald Squelart
6daee06496 Bug 1646266 - Rework backtrace-capture functions - r=gregtatum
`profiler_capture_backtrace(ProfileChunkedBuffer&)` renamed to `profiler_capture_backtrace_into(ProfileChunkedBuffer&)` (notice "_into"), which is clearer.

New function `profiler_capture_backtrace()` creates a buffer, uses `profiler_capture_backtrace_into()`, and returns a `UniquePtr<ProfileChunkedBuffer>`, which can later be given to `MarkerStack::TakeBacktrace`.

`profiler_get_backtrace()` (returning a `UniqueProfilerBacktrace`) now uses `profiler_capture_backtrace()`.

This patch reduces most duplicate code between these functions.

Differential Revision: https://phabricator.services.mozilla.com/D88280
2020-09-02 03:58:50 +00:00
Gerald Squelart
043c34629b Bug 1646266 - Marker option: MarkerTiming - r=gregtatum
This moves the existing MarkerTiming class introduced in bug 1640969 to the BaseProfilerMarkersPrerequesites.h header, and can be used as a marker option.

Some minor clarifying changes:
- `Instant()` is split into two functions: `InstantNow()` and `InstantAt(TimeStamp)`.
- `Interval(TimeStamp, TimeStamp)` must be given both start and end, otherwise `IntervalUntilNowFrom(TimeStamp)` takes the start only and ends "now".

Also the default construction is now reserved for internal marker usage, the private member function `IsUnspecified()` will be used by the add-marker code will replace it with `InstantNow()`.

The serialization contains the phase, and only one or two timestamps as needed, to save space for non-interval timings.

Differential Revision: https://phabricator.services.mozilla.com/D87245
2020-09-02 03:57:59 +00:00
Gerald Squelart
7fc90b5c27 Bug 1646266 - CorePS buffer access - r=gregtatum
The upcoming profiler-specific add-marker function will need to know which `ProfileChunkedBuffer` to serialize to, `profiler_get_core_buffer()` give access to the profiler's buffer, and `CachedCoreBuffer()` keeps it stored in a function-static object.

Differential Revision: https://phabricator.services.mozilla.com/D87256
2020-09-02 03:57:19 +00:00
Gerald Squelart
f55e5c3957 Bug 1646266 - ProfilerString{,8,16}View - r=gregtatum
These string views are similar to `std::string_view`, but they are optimized to be serialized in the profiler buffer, and later deserialized and streamed to JSON.
They accept literal strings, and keep them as unowned raw pointers and sizes.
They also accept any substring reference, assuming that they will only be used as parameters during function calls, and therefore the dependent string will live during that call where these `StringView`'s are used.

Internally, they also allow optional string ownership, which is only used during deserialization and streaming.
This is hidden, so that users are not tempted to use potentially expensive string allocations during profiling; it's only used *after* profiling, so it's less of an impact to allocate strings then. (But it could still be optimized later on, as part of bug 1577656.)

Differential Revision: https://phabricator.services.mozilla.com/D87242
2020-09-02 03:57:17 +00:00
Gerald Squelart
e91236469e Bug 1646266 - ProfilerMarkers skeleton files - r=gregtatum
This patch introduces all new files that contain the new markers C++ API and implementation.
They are mostly empty at this time, only including each other as eventually needed, and with `#ifdef MOZ_GECKO_PROFILER` guards.

Rough inclusion diagram: (header <-- includer)

    BaseProfilerMarkerPrerequesites.h <-- ProfilerMarkerPrerequesites.h  (Useful types: Input string view, marker options)
                  ^                                    ^
       BaseProfilerMarkerDetail.h     <--    ProfilerMarkerDetail.h      (Implementation details)
                  ^                                    ^
         BaseProfilerMarkers.h        <--      ProfilerMarkers.h         (Main API)
                  ^      ^---------                    ^   ^---------
       BaseProfilerMarkerTypes.h  |   <--    ProfilerMarkerTypes.h   |   (Common marker types)
                  ^         BaseProfiler.h        <--         GeckoProfiler.h  (Existing main profiler headers)

Differential Revision: https://phabricator.services.mozilla.com/D87241
2020-09-02 03:55:43 +00:00
Cristina Coroiu
8eaafae8fd Backed out 2 changesets (bug 1661514) for lint failure on a CLOSED TREE
Backed out changeset 8e58c88f756b (bug 1661514)
Backed out changeset aef89f9a8031 (bug 1661514)
2020-09-01 19:34:12 +03:00
Sylvestre Ledru
5ee2fbd7cb Bug 1661514 - Reformat some python files with black 20.8b1 r=rstewart
# ignore-this-changeset

Depends on D88711

Differential Revision: https://phabricator.services.mozilla.com/D88712
2020-08-31 17:06:22 +00:00
Sylvestre Ledru
7b9bcc2a8b Bug 1661514 - Update to black 20.8b1 r=rstewart
Differential Revision: https://phabricator.services.mozilla.com/D88711
2020-08-31 17:05:08 +00:00
Gregory Mierzwinski
4e902a393d Bug 1661329 - Add idle and idle-bg power usage tests to raptor-browsertime. r=perftest-reviewers,Bebe
This patch adds the idle and idle-bg tests to raptor-browsertime. To make these work, a new browsertime script was built which handles waiting on a given page url, as well as backgrounding the application.

Differential Revision: https://phabricator.services.mozilla.com/D88491
2020-09-01 10:02:55 +00:00
Gregory Mierzwinski
7101f264ef Bug 1650879 - Upgrade browsertime to v9.4.0. r=tarek,perftest-reviewers,Bebe
Differential Revision: https://phabricator.services.mozilla.com/D88324
2020-09-01 14:01:18 +00:00
Mike Hommey
6db78719c3 Bug 1662037 - Update fix-stacks to a version that does not need fileid. r=njn
Differential Revision: https://phabricator.services.mozilla.com/D88959
2020-09-01 08:58:14 +00:00
Philipp Fischbeck
24588e8d85 Bug 1622683 - Make dom/websocket flake8 and pylint compliant. r=sylvestre
Differential Revision: https://phabricator.services.mozilla.com/D88809
2020-08-31 14:42:21 +00:00
Cristina Coroiu
91699791f8 Backed out 20 changesets (bug 1646266) for build bustage at baseprofiler/core/ProfilerMarkers.cpp on a CLOSED TREE
Backed out changeset a2734d73264c (bug 1646266)
Backed out changeset a0c2db6f73c7 (bug 1646266)
Backed out changeset 6b71d7b09641 (bug 1646266)
Backed out changeset fcf3c271d0fc (bug 1646266)
Backed out changeset b4a39ef38261 (bug 1646266)
Backed out changeset 6c2b59568703 (bug 1646266)
Backed out changeset 5e7a28a727a1 (bug 1646266)
Backed out changeset b51bc775d1e3 (bug 1646266)
Backed out changeset a01a466e464c (bug 1646266)
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Backed out changeset 9fd6a871374f (bug 1646266)
Backed out changeset 3b88d838b252 (bug 1646266)
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Backed out changeset 22bdc0172356 (bug 1646266)
Backed out changeset 4ea14ca3d492 (bug 1646266)
Backed out changeset 25f8e4b67b32 (bug 1646266)
Backed out changeset 3d0160207591 (bug 1646266)
Backed out changeset 790ed86c1a6c (bug 1646266)
Backed out changeset 4c38607ea1ba (bug 1646266)
2020-09-01 11:01:57 +03:00
Gerald Squelart
fa20d50c45 Bug 1646266 - Profiler Markers 2.0 tests - r=gregtatum
Differential Revision: https://phabricator.services.mozilla.com/D87260
2020-09-01 04:02:11 +00:00
Gerald Squelart
7440a01e37 Bug 1646266 - {,Base}ProfilerMarkerTypes.h - r=gregtatum
This patch ports existing ProfilerMarkerPayload types to draft struct definitions that may be used with the new markers API.
This is just a starting point, they may be changed later on as needed, see meta-bug 1661394.

Differential Revision: https://phabricator.services.mozilla.com/D87259
2020-09-01 04:01:06 +00:00
Gerald Squelart
bf1b496989 Bug 1646266 - {BASE_,}PROFILER_MARKER{,_TEXT} - r=gregtatum
This is the main public marker API:
- `AddMarkerToBuffer` can be used to store a marker to any buffer. This could be useful to code that wants to store markers outside of the default profiler buffers.
- `baseprofiler::AddMarker`/`profiler_add_marker` store a marker in the appropriate profiler buffer.
- BASE_PROFILER_MARKER and PROFILER_MARKER do the same, but are also defined (and empty) when MOZ_GECKO_PROFILER is not #defined.
All these take a name, marker options, a marker type, and the type's expected arguments if any (as expected by the `StreamJSONMarkerData` function).

Extra helpers for the most common types:
- BASE_PROFILER_MARKER_UNTYPED and PROFILER_MARKER_UNTYPED store a marker with no data payload.
- BASE_PROFILER_MARKER_TEXT and PROFILER_MARKER_TEXT store a text marker. `baseprofiler::markers::Text` is an example of how new marker types can be defined.

Differential Revision: https://phabricator.services.mozilla.com/D87257
2020-09-01 04:00:33 +00:00
Gerald Squelart
a23a149def Bug 1646266 - Marker Deserialization - r=gregtatum
`DeserializeAfterKindAndStream()` is the main function that extracts all the marker data (past the already-read entry kind), and streams it to JSON using the user-provided `Stream(JSONWriter&, ...)` function in the appropriate marker type definition.

It currently requires two external functions to stream the name and the optional backtrace, because these are different between the two profilers. This may change in the future.

(Deserialization is implemented before serialization, because the `Deserialize()` function is needed during serialization to get a marker type tag.)

Differential Revision: https://phabricator.services.mozilla.com/D87254
2020-09-01 03:59:55 +00:00
Gerald Squelart
208176a140 Bug 1646266 - NoPayload default type, with specialized empty helper - r=gregtatum
`NoPayload` will be mostly used internally when adding markers without payload data.
It has an empty specialization of the MarkerTypeHelper (mainly to catch misuses), and the add-marker code will need to have different compile-time paths to handle it.

Differential Revision: https://phabricator.services.mozilla.com/D87252
2020-09-01 03:59:09 +00:00
Gerald Squelart
74d1ab4ad6 Bug 1646266 - Rework backtrace-capture functions - r=gregtatum
`profiler_capture_backtrace(ProfileChunkedBuffer&)` renamed to `profiler_capture_backtrace_into(ProfileChunkedBuffer&)` (notice "_into"), which is clearer.

New function `profiler_capture_backtrace()` creates a buffer, uses `profiler_capture_backtrace_into()`, and returns a `UniquePtr<ProfileChunkedBuffer>`, which can later be given to `MarkerStack::TakeBacktrace`.

`profiler_get_backtrace()` (returning a `UniqueProfilerBacktrace`) now uses `profiler_capture_backtrace()`.

This patch reduces most duplicate code between these functions.

Differential Revision: https://phabricator.services.mozilla.com/D88280
2020-09-01 03:57:02 +00:00
Gerald Squelart
5068c84cfe Bug 1646266 - Marker option: MarkerTiming - r=gregtatum
This moves the existing MarkerTiming class introduced in bug 1640969 to the BaseProfilerMarkersPrerequesites.h header, and can be used as a marker option.

Some minor clarifying changes:
- `Instant()` is split into two functions: `InstantNow()` and `InstantAt(TimeStamp)`.
- `Interval(TimeStamp, TimeStamp)` must be given both start and end, otherwise `IntervalUntilNowFrom(TimeStamp)` takes the start only and ends "now".

Also the default construction is now reserved for internal marker usage, the private member function `IsUnspecified()` will be used by the add-marker code will replace it with `InstantNow()`.

The serialization contains the phase, and only one or two timestamps as needed, to save space for non-interval timings.

Differential Revision: https://phabricator.services.mozilla.com/D87245
2020-09-01 03:56:16 +00:00
Gerald Squelart
c9adf082b0 Bug 1646266 - CorePS buffer access - r=gregtatum
The upcoming profiler-specific add-marker function will need to know which `ProfileChunkedBuffer` to serialize to, `profiler_get_core_buffer()` give access to the profiler's buffer, and `CachedCoreBuffer()` keeps it stored in a function-static object.

Differential Revision: https://phabricator.services.mozilla.com/D87256
2020-09-01 03:55:00 +00:00
Gerald Squelart
f458e68ddc Bug 1646266 - ProfilerString{,8,16}View - r=gregtatum
These string views are similar to `std::string_view`, but they are optimized to be serialized in the profiler buffer, and later deserialized and streamed to JSON.
They accept literal strings, and keep them as unowned raw pointers and sizes.
They also accept any substring reference, assuming that they will only be used as parameters during function calls, and therefore the dependent string will live during that call where these `StringView`'s are used.

Internally, they also allow optional string ownership, which is only used during deserialization and streaming.
This is hidden, so that users are not tempted to use potentially expensive string allocations during profiling; it's only used *after* profiling, so it's less of an impact to allocate strings then. (But it could still be optimized later on, as part of bug 1577656.)

Differential Revision: https://phabricator.services.mozilla.com/D87242
2020-09-01 03:54:26 +00:00
Gerald Squelart
6ec5853647 Bug 1646266 - ProfilerMarkers skeleton files - r=gregtatum
This patch introduces all new files that contain the new markers C++ API and implementation.
They are mostly empty at this time, only including each other as eventually needed, and with `#ifdef MOZ_GECKO_PROFILER` guards.

Rough inclusion diagram: (header <-- includer)

    BaseProfilerMarkerPrerequesites.h <-- ProfilerMarkerPrerequesites.h  (Useful types: Input string view, marker options)
                  ^                                    ^
       BaseProfilerMarkerDetail.h     <--    ProfilerMarkerDetail.h      (Implementation details)
                  ^                                    ^
         BaseProfilerMarkers.h        <--      ProfilerMarkers.h         (Main API)
                  ^      ^---------                    ^   ^---------
       BaseProfilerMarkerTypes.h  |   <--    ProfilerMarkerTypes.h   |   (Common marker types)
                  ^         BaseProfiler.h        <--         GeckoProfiler.h  (Existing main profiler headers)

Differential Revision: https://phabricator.services.mozilla.com/D87241
2020-09-01 03:53:59 +00:00
Brindusan Cristian
891f3554a7 Backed out 20 changesets (bug 1646266) for build bustages at TestBaseProfiler.cpp. CLOSED TREE
Backed out changeset e2e161965ad3 (bug 1646266)
Backed out changeset 5d8691cb0edb (bug 1646266)
Backed out changeset 119344e72ed8 (bug 1646266)
Backed out changeset da8ae4c7615c (bug 1646266)
Backed out changeset d5a7d5139d59 (bug 1646266)
Backed out changeset 1eba69baac1f (bug 1646266)
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Backed out changeset 8c9ceb8f8dc8 (bug 1646266)
2020-09-01 05:24:52 +03:00
Gerald Squelart
7b632d04a8 Bug 1646266 - Profiler Markers 2.0 tests - r=gregtatum
Differential Revision: https://phabricator.services.mozilla.com/D87260
2020-09-01 01:38:49 +00:00
Gerald Squelart
3980c1d522 Bug 1646266 - {,Base}ProfilerMarkerTypes.h - r=gregtatum
This patch ports existing ProfilerMarkerPayload types to draft struct definitions that may be used with the new markers API.
This is just a starting point, they may be changed later on as needed, see meta-bug 1661394.

Differential Revision: https://phabricator.services.mozilla.com/D87259
2020-09-01 01:38:26 +00:00
Gerald Squelart
5e53131645 Bug 1646266 - {BASE_,}PROFILER_MARKER{,_TEXT} - r=gregtatum
This is the main public marker API:
- `AddMarkerToBuffer` can be used to store a marker to any buffer. This could be useful to code that wants to store markers outside of the default profiler buffers.
- `baseprofiler::AddMarker`/`profiler_add_marker` store a marker in the appropriate profiler buffer.
- BASE_PROFILER_MARKER and PROFILER_MARKER do the same, but are also defined (and empty) when MOZ_GECKO_PROFILER is not #defined.
All these take a name, marker options, a marker type, and the type's expected arguments if any (as expected by the `StreamJSONMarkerData` function).

Extra helpers for the most common types:
- BASE_PROFILER_MARKER_UNTYPED and PROFILER_MARKER_UNTYPED store a marker with no data payload.
- BASE_PROFILER_MARKER_TEXT and PROFILER_MARKER_TEXT store a text marker. `baseprofiler::markers::Text` is an example of how new marker types can be defined.

Differential Revision: https://phabricator.services.mozilla.com/D87257
2020-09-01 01:37:53 +00:00
Gerald Squelart
75bfba7dd8 Bug 1646266 - Marker Deserialization - r=gregtatum
`DeserializeAfterKindAndStream()` is the main function that extracts all the marker data (past the already-read entry kind), and streams it to JSON using the user-provided `Stream(JSONWriter&, ...)` function in the appropriate marker type definition.

It currently requires two external functions to stream the name and the optional backtrace, because these are different between the two profilers. This may change in the future.

(Deserialization is implemented before serialization, because the `Deserialize()` function is needed during serialization to get a marker type tag.)

Differential Revision: https://phabricator.services.mozilla.com/D87254
2020-09-01 01:37:25 +00:00
Gerald Squelart
f3ea5dc029 Bug 1646266 - NoPayload default type, with specialized empty helper - r=gregtatum
`NoPayload` will be mostly used internally when adding markers without payload data.
It has an empty specialization of the MarkerTypeHelper (mainly to catch misuses), and the add-marker code will need to have different compile-time paths to handle it.

Differential Revision: https://phabricator.services.mozilla.com/D87252
2020-09-01 01:37:20 +00:00
Gerald Squelart
0338f0c407 Bug 1646266 - Rework backtrace-capture functions - r=gregtatum
`profiler_capture_backtrace(ProfileChunkedBuffer&)` renamed to `profiler_capture_backtrace_into(ProfileChunkedBuffer&)` (notice "_into"), which is clearer.

New function `profiler_capture_backtrace()` creates a buffer, uses `profiler_capture_backtrace_into()`, and returns a `UniquePtr<ProfileChunkedBuffer>`, which can later be given to `MarkerStack::TakeBacktrace`.

`profiler_get_backtrace()` (returning a `UniqueProfilerBacktrace`) now uses `profiler_capture_backtrace()`.

This patch reduces most duplicate code between these functions.

Differential Revision: https://phabricator.services.mozilla.com/D88280
2020-09-01 01:34:17 +00:00
Gerald Squelart
718ef431b3 Bug 1646266 - Marker option: MarkerTiming - r=gregtatum
This moves the existing MarkerTiming class introduced in bug 1640969 to the BaseProfilerMarkersPrerequesites.h header, and can be used as a marker option.

Some minor clarifying changes:
- `Instant()` is split into two functions: `InstantNow()` and `InstantAt(TimeStamp)`.
- `Interval(TimeStamp, TimeStamp)` must be given both start and end, otherwise `IntervalUntilNowFrom(TimeStamp)` takes the start only and ends "now".

Also the default construction is now reserved for internal marker usage, the private member function `IsUnspecified()` will be used by the add-marker code will replace it with `InstantNow()`.

The serialization contains the phase, and only one or two timestamps as needed, to save space for non-interval timings.

Differential Revision: https://phabricator.services.mozilla.com/D87245
2020-09-01 01:33:26 +00:00
Gerald Squelart
56dc2f7c14 Bug 1646266 - CorePS buffer access - r=gregtatum
The upcoming profiler-specific add-marker function will need to know which `ProfileChunkedBuffer` to serialize to, `profiler_get_core_buffer()` give access to the profiler's buffer, and `CachedCoreBuffer()` keeps it stored in a function-static object.

Differential Revision: https://phabricator.services.mozilla.com/D87256
2020-09-01 01:32:13 +00:00
Gerald Squelart
80e6ec3baf Bug 1646266 - ProfilerString{,8,16}View - r=gregtatum
These string views are similar to `std::string_view`, but they are optimized to be serialized in the profiler buffer, and later deserialized and streamed to JSON.
They accept literal strings, and keep them as unowned raw pointers and sizes.
They also accept any substring reference, assuming that they will only be used as parameters during function calls, and therefore the dependent string will live during that call where these `StringView`'s are used.

Internally, they also allow optional string ownership, which is only used during deserialization and streaming.
This is hidden, so that users are not tempted to use potentially expensive string allocations during profiling; it's only used *after* profiling, so it's less of an impact to allocate strings then. (But it could still be optimized later on, as part of bug 1577656.)

Differential Revision: https://phabricator.services.mozilla.com/D87242
2020-09-01 01:31:45 +00:00