diff options
Diffstat (limited to 'vendor/github.com/tetratelabs/wazero/cache.go')
| -rw-r--r-- | vendor/github.com/tetratelabs/wazero/cache.go | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/vendor/github.com/tetratelabs/wazero/cache.go b/vendor/github.com/tetratelabs/wazero/cache.go index 2d1b4e3b9..83cdb94ef 100644 --- a/vendor/github.com/tetratelabs/wazero/cache.go +++ b/vendor/github.com/tetratelabs/wazero/cache.go @@ -24,6 +24,13 @@ import ( // All implementations are in wazero. // - Instances of this can be reused across multiple runtimes, if configured // via RuntimeConfig. +// - The cache check happens before the compilation, so if multiple Goroutines are +// trying to compile the same module simultaneously, it is possible that they +// all compile the module. The design here is that the lock isn't held for the action "Compile" +// but only for checking and saving the compiled result. Therefore, we strongly recommend that the embedder +// does the centralized compilation in a single Goroutines (or multiple Goroutines per Wasm binary) to generate cache rather than +// trying to Compile in parallel for a single module. In other words, we always recommend to produce CompiledModule +// share it across multiple Goroutines to avoid trying to compile the same module simultaneously. type CompilationCache interface{ api.Closer } // NewCompilationCache returns a new CompilationCache to be passed to RuntimeConfig. |