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Merge #5307

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5307: disable profiling r=matklad a=matklad



bors r+
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Co-authored-by: Aleksey Kladov <aleksey.kladov@gmail.com>
This commit is contained in:
bors[bot] 2020-07-11 01:42:18 +00:00 committed by GitHub
commit 0366a85052
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1 changed files with 6 additions and 1 deletions
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7
crates/ra_prof/src/lib.rs
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@ -66,7 +66,8 @@ impl Drop for Scope {
/// 2. Build with `cpu_profiler` feature.
/// 3. Tun the code, the *raw* output would be in the `./out.profile` file.
/// 4. Install pprof for visualization (https://github.com/google/pprof).
/// 5. Use something like `pprof -svg target/release/rust-analyzer ./out.profile` to see the results.
/// 5. Bump sampling frequency to once per ms: `export CPUPROFILE_FREQUENCY=1000`
/// 6. Use something like `pprof -svg target/release/rust-analyzer ./out.profile` to see the results.
///
/// For example, here's how I run profiling on NixOS:
///
@ -74,6 +75,10 @@ impl Drop for Scope {
/// $ nix-shell -p gperftools --run \
/// 'cargo run --release -p rust-analyzer -- parse < ~/projects/rustbench/parser.rs > /dev/null'
/// ```
///
/// See this diff for how to profile completions:
///
/// https://github.com/rust-analyzer/rust-analyzer/pull/5306
#[derive(Debug)]
pub struct CpuProfiler {
_private: (),