diff options
| -rw-r--r-- | src/tools/miri/src/machine.rs | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/tools/miri/src/machine.rs b/src/tools/miri/src/machine.rs index b91efae3bcb..32717a0d28b 100644 --- a/src/tools/miri/src/machine.rs +++ b/src/tools/miri/src/machine.rs @@ -508,6 +508,10 @@ impl<'mir, 'tcx> MiriMachine<'mir, 'tcx> { .clone() .unwrap_or_else(|| "unknown-crate".to_string()); let pid = process::id(); + // We adopt the same naming scheme for the profiler output that rustc uses. In rustc, + // the PID is padded so that the nondeterministic value of the PID does not spread + // nondeterminisim to the allocator. In Miri we are not aiming for such performance + // control, we just pad for consistency with rustc. let filename = format!("{crate_name}-{pid:07}"); let path = Path::new(out).join(filename); measureme::Profiler::new(path).expect("Couldn't create `measureme` profiler") |