Add flow transactions profile command#2254
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flow cadence profile commandflow cadence profile command
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Pull request overview
This PR adds a new flow cadence profile command that enables profiling of transaction execution on Flow networks. The command generates pprof-compatible profile data for analyzing transaction performance and resource usage.
Changes:
- Implements transaction profiling functionality by replaying transactions using FVM with forked state
- Adds comprehensive test coverage for validation, result formatting, and integration testing with local emulator
- Increases gRPC timeout from 5 to 60 seconds to support profiling operations
Reviewed changes
Copilot reviewed 4 out of 4 changed files in this pull request and generated 1 comment.
| File | Description |
|---|---|
| internal/util/util.go | Increases GetChainIDFromHost timeout to 60 seconds to accommodate profiling operations |
| internal/transactions/transactions.go | Registers the new profile command with the transaction command group |
| internal/transactions/profile.go | Core implementation of transaction profiling including FVM setup, state forking, and pprof export |
| internal/transactions/profile_test.go | Comprehensive test suite covering validation, result formatting, and integration scenarios |
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jribbink
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flow cadence profile commandflow transactions profile command
janezpodhostnik
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Jan 20, 2026
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I tested it out and I love it. This is going to be such a big help!
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Love this! ❤️ |
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Closes #2251
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