Summary: public
Kill `RCTPerfStats` and introduce the new `RCTPerfMonitor`, including memory
usage, JSC heap size, number of RN views in screen, FPS (both on UI and JS threads)
and more to come.
It removes all the previous traces that were previous spread across the bridge
and the dev menu and moves everything to be more contained, so the whole thing
can be safely striped in production.
Reviewed By: nicklockwood
Differential Revision: D2575158
fb-gh-sync-id: 6a6d0c4422adbddeeefddd32ec3409a7095ff2a9
Summary: public
Use arrays instead of dictionaries for encoding module method information.
This further reduces UIExplorer startup JSON from 16104 bytes to 14119 (12% reduction)
Reviewed By: javache
Differential Revision: D2570057
fb-gh-sync-id: 4a53a9ead4365a136e7caeb650375733e1c24c0e
Summary: public
We're sending a lot of module config data when the app first starts, and much of this is redundant.
UIExplorer current sends 19061 bytes of module config JSON. This diff reduces that to 16104 (15% saving) by stripping modules that have no methods or constants, and removing method types unless method is async.
Reviewed By: tadeuzagallo, javache
Differential Revision: D2570010
fb-gh-sync-id: 8c0abbd1cdee3264b37a4f52e852008caaffb9c5
Summary: public
Implement the iOS side of the optmisation previously implemented in android
(D2485402)
Depends on D2540746
Reviewed By: javache
Differential Revision: D2541118
fb-gh-sync-id: f3590600a6defa2da75c5b7b2cced6ad8bfea6cb
Summary: public
Benchmarking our startup path has shown we spend a lot of time decoding strings (iPhone 4S / iPhone 5):
* reading a 2MB JS bundle: 35ms / 15ms
* decoding is to an `NSString`: 186ms / 78ms
* transforming that to a `JSString`: 29ms / 10ms
Instead of going through an `NSString` transformation, we generate a null-terminated bundle (0.1ms / 0.05ms to copy the data) and use `JSStringCreateWithUTF8CString` (121ms / 53ms) to generate the string. That makes decoding 70% faster.
Reviewed By: javache
Differential Revision: D2541140
fb-gh-sync-id: 09a016b8edfd46a9b62682c76705564d2024e75e
Summary: @public
When de-batching the calls from native -> JS, some calls were being dispatched
before the bridge had finished loading, which would cause lost calls when running
on the `ContextExecutor` and redbox when running in the Chrome debugger
Reviewed By: @javache
Differential Revision: D2540746
fb-gh-sync-id: ece29406648d3cbcb42cef3b32b8774ff0c15fd8
Summary: @public
Take a step back and de-batch the bridge calls so we can have better profiling data and a better starting point to work on future optimisations. Also gave a 10~15% win on first render.
Reviewed By: @javache
Differential Revision: D2493674
fb-gh-sync-id: 05165fdd00645bdf43e844bb0c4300a2f63e7038
Summary: I noticed that sometimes the batched bridge would be valid before `[self enqueueApplicationScript:url:onComplete:]` but then become invalid in the completion callback. This diff checks `self.isValid` inside of the callback.
Closes https://github.com/facebook/react-native/pull/2016
Reviewed By: @trunkagent, @jspahrsummers
Differential Revision: D2443438
Pulled By: @tadeuzagallo
Summary: @public
When using bundled JS the `__DEV__` flag is set to false by default, which can cause errors to be missed if used for testing. This diff adds logic to override the `__DEV__` value when running in RCT_DEBUG configuration, so that the JS debug checks are enabled.
Reviewed By: @tadeuzagallo
Differential Revision: D2429533
Summary: @public
Migrate scripts to open source and add new route on the packager
to directly convert profiler outputs to a devtools compatible format.
Reviewed By: @jspahrsummers
Differential Revision: D2425740
Summary:
Previously the bridge sometimes never fired RCTJavaScriptDidLoadNotification or RCTJavaScriptDidFailToLoadNotification if there was an error (for example, if the source code loaded but we couldn't inject the JSON config). This diff moves the error handling into a method called `stopLoadingWithError` that the bridge can call whenever there is an error.
Also if the script failed to load, the BatchedBridge still called `executeSourceCode`. With this diff the `_loading` flag is set to NO when the script fails to load, and `executeSourceCode` returns immediately when `_loading` is false. This way the bridge does not try to execute JS when there is a loading error.
Closes https://github.com/facebook/react-native/pull/2520
Github Author: James Ide <ide@jameside.com>
Summary:
When bridge calls are made, they should be dispatched to their
destination GCD queue in the same order they were made. (It
looks like this invariant broke in 336e18d, which caused call
order to depend on the iteration of `NSMapTable` keys
whenever there are calls to multiple modules that share a queue)
Fixes#1941 (in which RCTUIManager createView addUIBlock
blocks were sometimes running after other blocks that depended
on them)
I'm a react-native/iOS/objc newbie, so please excuse any
ignorance this commit may well contain :)
Closes https://github.com/facebook/react-native/pull/2488
Github Author: Ted Suzman <ted@suzman.net>
Summary:
The module's methodQueue wasn't being created when accessing the modules directly
on the bridge, without going through JS. Preload the queue for now to fix internal
breakages, but I'll figure out a better way to keep it lazy afterwards.
Summary:
If the bundleURL has no port(default 80) , the profile request URL will be `<scheme>://<host>:<null>/profile`, that will not work. So we should decide if the port exsits first.
Closes https://github.com/facebook/react-native/pull/2131
Github Author: =?UTF-8?q?=E9=9A=90=E9=A3=8E?= <yinfeng.fcx@alibaba-inc.com>
Summary:
Add a new bridge delegate protocol to allow a more flexible bridge configuration.
For now it just support the pre-existent configurations + providing the JavaScript
source to the bridge, that should allow pre-loading sources.
Summary:
Fixes#2126
`RCTBatchedBridge` didn't implement `bundleURL`, that was available on the public
bridge interface, so it'd always be `nil`, and setting it would just be ignored.
Summary:
Occasionally people create RCTBridgeModule subclasses or base classes that are not intended to be accessed from JS, and so they don't export them. This was previously flagged as an error by the system. I've now downgraded this error to a warning at startup, and deferred the redbox error until the module is directly accessed by native or JS code.
Summary:
The context wasn't being explicitly released before, since it'd be immediately
released. Now that the executors are bridge modules, it was only being deallocated
when the modules were released, what caused the threads to not be released at all.
Summary:
dispatch_semaphore_wait with DISPATCH_TIME_NOW don't wait for the semaphore. It just test whether there's a signal and return the result.
So the line "dispatch_semaphore_wait(semaphore, DISPATCH_TIME_NOW);" does nothing here. It seems like a bug, but each executing in js thread will be queued, so it's safe to remove the unused semaphore instead of wait for it.
Closes https://github.com/facebook/react-native/pull/1915
Github Author: DengYun <tdzl2003@gmail.com>
Summary:
Remove `RCTGetExecutorID` and `RCTSetExecutorID`, it wasn't used anymore since
the bridge was refactored into `RCTBridge` and `RCTBatchedBridge`.
Summary:
Every once in a while a guard is forgotten somewhere and the redbox is gone. I
want to remove the guards, but for that the stack traces have to be symbolicated
on the native side. So for now it just adds yet another check, in case a guard
is missing on JS.
Summary:
The context wasn't being explicitly released before, since it'd be immediately
released. Now that the executors are bridge modules, it was only being deallocated
when the modules were released, what caused the threads to not be released at all.
Tadeu Zagallo
Nick Lockwood
Pieter De Baets
Frédéric Sagnes
Alexey Lang
Abhishek Sood
James Ide
Marc Horowitz
Ted Suzman
Christopher Chedeau
=?UTF-8?q?=E9=9A=90=E9=A3=8E?=
Alex Kotliarskyi
DengYun
Natansh Verma