Scaffold support for Tracing by jsinspector #48836
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This pull request was exported from Phabricator. Differential Revision: D68327630 |
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Summary: Pull Request resolved: facebook#48836 # Changelog: [Internal] Differential Revision: D68327630
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Summary: Pull Request resolved: facebook#48836 # Changelog: [Internal] Differential Revision: D68327630
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Summary: # Changelog: [Internal] When `Tracing.start` CDP method is received, here is what happens next: - `TracingAgent`, which intercepts the event will propagate this status to `Instance` by calling `startTracing()` on `InstanceAgent`. - `InstanceAgent` will propagate it to `Runtime` entities. The only difference, there is no concept of tracing for Runtime, it will only have an API for starting sampling profiler. When `Tracing.end` CDP method is received, it is propagated in the same order. There is also `collect*()` methods for collecting profiles. This has multiple benefits: - We can control when `Runtime` or `Instance` are recreated and can ask them to start recording trace profiles right away. This may be required when we would add support for Reload and Profile from Performance panel. - We might leverage this setup in the future, once we add instrumentation for Network panel. `InstanceAgent` will get notified when tracing started and will correspondingly notify other part of the infrastructure that will be responsible for recording network calls. - We remain being fully agnostic to the actual `Runtime`, see corresponding `RuntimeTargetDelegate` for `V8`. We don't have the capacity for implementing and maintaining sampling profiler capabilities for it, but this approach unblocks it from technical perspective, if someone would want to invest into this. `InstanceProfile` is a superset of `RuntimeSamplingProfile`. In the future, `InstanceProfile` may also include things like `NetworkProfile`, or similar stuff. The definition for `RuntimeSamplingProfile` will be added in D68414421 and relies on the availability of new API for sampling profiler in Hermes. Differential Revision: D68327630
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Summary: # Changelog: [Internal] When `Tracing.start` CDP method is received, here is what happens next: - `TracingAgent`, which intercepts the event will propagate this status to `Instance` by calling `startTracing()` on `InstanceAgent`. - `InstanceAgent` will propagate it to `Runtime` entities. The only difference, there is no concept of tracing for Runtime, it will only have an API for starting sampling profiler. When `Tracing.end` CDP method is received, it is propagated in the same order. There is also `collect*()` methods for collecting profiles. This has multiple benefits: - We can control when `Runtime` or `Instance` are recreated and can ask them to start recording trace profiles right away. This may be required when we would add support for Reload and Profile from Performance panel. - We might leverage this setup in the future, once we add instrumentation for Network panel. `InstanceAgent` will get notified when tracing started and will correspondingly notify other part of the infrastructure that will be responsible for recording network calls. - We remain being fully agnostic to the actual `Runtime`, see corresponding `RuntimeTargetDelegate` for `V8`. We don't have the capacity for implementing and maintaining sampling profiler capabilities for it, but this approach unblocks it from technical perspective, if someone would want to invest into this. `InstanceProfile` is a superset of `RuntimeSamplingProfile`. In the future, `InstanceProfile` may also include things like `NetworkProfile`, or similar stuff. The definition for `RuntimeSamplingProfile` will be added in D68414421 and relies on the availability of new API for sampling profiler in Hermes. Differential Revision: D68327630
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Summary: # Changelog: [Internal] When `Tracing.start` CDP method is received, here is what happens next: - `TracingAgent`, which intercepts the event will propagate this status to `Instance` by calling `startTracing()` on `InstanceAgent`. - `InstanceAgent` will propagate it to `Runtime` entities. The only difference, there is no concept of tracing for Runtime, it will only have an API for starting sampling profiler. When `Tracing.end` CDP method is received, it is propagated in the same order. There is also `collect*()` methods for collecting profiles. This has multiple benefits: - We can control when `Runtime` or `Instance` are recreated and can ask them to start recording trace profiles right away. This may be required when we would add support for Reload and Profile from Performance panel. - We might leverage this setup in the future, once we add instrumentation for Network panel. `InstanceAgent` will get notified when tracing started and will correspondingly notify other part of the infrastructure that will be responsible for recording network calls. - We remain being fully agnostic to the actual `Runtime`, see corresponding `RuntimeTargetDelegate` for `V8`. We don't have the capacity for implementing and maintaining sampling profiler capabilities for it, but this approach unblocks it from technical perspective, if someone would want to invest into this. `InstanceProfile` is a superset of `RuntimeSamplingProfile`. In the future, `InstanceProfile` may also include things like `NetworkProfile`, or similar stuff. The definition for `RuntimeSamplingProfile` will be added in D68414421 and relies on the availability of new API for sampling profiler in Hermes. Differential Revision: D68327630
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Summary: # Changelog: [Internal] When `Tracing.start` CDP method is received, here is what happens next: - `TracingAgent`, which intercepts the event will propagate this status to `Instance` by calling `startTracing()` on `InstanceAgent`. - `InstanceAgent` will propagate it to `Runtime` entities. The only difference, there is no concept of tracing for Runtime, it will only have an API for starting sampling profiler. When `Tracing.end` CDP method is received, it is propagated in the same order. There is also `collect*()` methods for collecting profiles. This has multiple benefits: - We can control when `Runtime` or `Instance` are recreated and can ask them to start recording trace profiles right away. This may be required when we would add support for Reload and Profile from Performance panel. - We might leverage this setup in the future, once we add instrumentation for Network panel. `InstanceAgent` will get notified when tracing started and will correspondingly notify other part of the infrastructure that will be responsible for recording network calls. - We remain being fully agnostic to the actual `Runtime`, see corresponding `RuntimeTargetDelegate` for `V8`. We don't have the capacity for implementing and maintaining sampling profiler capabilities for it, but this approach unblocks it from technical perspective, if someone would want to invest into this. `InstanceProfile` is a superset of `RuntimeSamplingProfile`. In the future, `InstanceProfile` may also include things like `NetworkProfile`, or similar stuff. The definition for `RuntimeSamplingProfile` will be added in D68414421 and relies on the availability of new API for sampling profiler in Hermes. Differential Revision: D68327630
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Summary: # Changelog: [Internal] When `Tracing.start` CDP method is received, here is what happens next: - `TracingAgent`, which intercepts the event will propagate this status to `Instance` by calling `startTracing()` on `InstanceAgent`. - `InstanceAgent` will propagate it to `Runtime` entities. The only difference, there is no concept of tracing for Runtime, it will only have an API for starting sampling profiler. When `Tracing.end` CDP method is received, it is propagated in the same order. There is also `collect*()` methods for collecting profiles. This has multiple benefits: - We can control when `Runtime` or `Instance` are recreated and can ask them to start recording trace profiles right away. This may be required when we would add support for Reload and Profile from Performance panel. - We might leverage this setup in the future, once we add instrumentation for Network panel. `InstanceAgent` will get notified when tracing started and will correspondingly notify other part of the infrastructure that will be responsible for recording network calls. - We remain being fully agnostic to the actual `Runtime`, see corresponding `RuntimeTargetDelegate` for `V8`. We don't have the capacity for implementing and maintaining sampling profiler capabilities for it, but this approach unblocks it from technical perspective, if someone would want to invest into this. `InstanceProfile` is a superset of `RuntimeSamplingProfile`. In the future, `InstanceProfile` may also include things like `NetworkProfile`, or similar stuff. The definition for `RuntimeSamplingProfile` will be added in D68414421 and relies on the availability of new API for sampling profiler in Hermes. Differential Revision: D68327630
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Summary: # Changelog: [Internal] When `Tracing.start` CDP method is received, here is what happens next: - `TracingAgent`, which intercepts the event will propagate this status to `Instance` by calling `startTracing()` on `InstanceAgent`. - `InstanceAgent` will propagate it to `Runtime` entities. The only difference, there is no concept of tracing for Runtime, it will only have an API for starting sampling profiler. When `Tracing.end` CDP method is received, it is propagated in the same order. There is also `collect*()` methods for collecting profiles. This has multiple benefits: - We can control when `Runtime` or `Instance` are recreated and can ask them to start recording trace profiles right away. This may be required when we would add support for Reload and Profile from Performance panel. - We might leverage this setup in the future, once we add instrumentation for Network panel. `InstanceAgent` will get notified when tracing started and will correspondingly notify other part of the infrastructure that will be responsible for recording network calls. - We remain being fully agnostic to the actual `Runtime`, see corresponding `RuntimeTargetDelegate` for `V8`. We don't have the capacity for implementing and maintaining sampling profiler capabilities for it, but this approach unblocks it from technical perspective, if someone would want to invest into this. `InstanceProfile` is a superset of `RuntimeSamplingProfile`. In the future, `InstanceProfile` may also include things like `NetworkProfile`, or similar stuff. The definition for `RuntimeSamplingProfile` will be added in D68414421 and relies on the availability of new API for sampling profiler in Hermes. Reviewed By: huntie Differential Revision: D68327630
hoxyq
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Summary: # Changelog: [Internal] When `Tracing.start` CDP method is received, here is what happens next: - `TracingAgent`, which intercepts the event will propagate this status to `Instance` by calling `startTracing()` on `InstanceAgent`. - `InstanceAgent` will propagate it to `Runtime` entities. The only difference, there is no concept of tracing for Runtime, it will only have an API for starting sampling profiler. When `Tracing.end` CDP method is received, it is propagated in the same order. There is also `collect*()` methods for collecting profiles. This has multiple benefits: - We can control when `Runtime` or `Instance` are recreated and can ask them to start recording trace profiles right away. This may be required when we would add support for Reload and Profile from Performance panel. - We might leverage this setup in the future, once we add instrumentation for Network panel. `InstanceAgent` will get notified when tracing started and will correspondingly notify other part of the infrastructure that will be responsible for recording network calls. - We remain being fully agnostic to the actual `Runtime`, see corresponding `RuntimeTargetDelegate` for `V8`. We don't have the capacity for implementing and maintaining sampling profiler capabilities for it, but this approach unblocks it from technical perspective, if someone would want to invest into this. `InstanceProfile` is a superset of `RuntimeSamplingProfile`. In the future, `InstanceProfile` may also include things like `NetworkProfile`, or similar stuff. The definition for `RuntimeSamplingProfile` will be added in D68414421 and relies on the availability of new API for sampling profiler in Hermes. Reviewed By: huntie Differential Revision: D68327630
hoxyq
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Summary: # Changelog: [Internal] When `Tracing.start` CDP method is received, here is what happens next: - `TracingAgent`, which intercepts the event will propagate this status to `Instance` by calling `startTracing()` on `InstanceAgent`. - `InstanceAgent` will propagate it to `Runtime` entities. The only difference, there is no concept of tracing for Runtime, it will only have an API for starting sampling profiler. When `Tracing.end` CDP method is received, it is propagated in the same order. There is also `collect*()` methods for collecting profiles. This has multiple benefits: - We can control when `Runtime` or `Instance` are recreated and can ask them to start recording trace profiles right away. This may be required when we would add support for Reload and Profile from Performance panel. - We might leverage this setup in the future, once we add instrumentation for Network panel. `InstanceAgent` will get notified when tracing started and will correspondingly notify other part of the infrastructure that will be responsible for recording network calls. - We remain being fully agnostic to the actual `Runtime`, see corresponding `RuntimeTargetDelegate` for `V8`. We don't have the capacity for implementing and maintaining sampling profiler capabilities for it, but this approach unblocks it from technical perspective, if someone would want to invest into this. `InstanceProfile` is a superset of `RuntimeSamplingProfile`. In the future, `InstanceProfile` may also include things like `NetworkProfile`, or similar stuff. The definition for `RuntimeSamplingProfile` will be added in D68414421 and relies on the availability of new API for sampling profiler in Hermes. Reviewed By: huntie Differential Revision: D68327630
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Summary: # Changelog: [Internal]
Differential Revision: D68327630