Merge branch 'perf/p2-contiguous-reads' into feat/p2-perf-coverage

# Conflicts:
#	CHANGELOG.md
#	docs/known-issues.md

crates/clawhdf5-format/src/chunked_read.rs

@@ -278,6 +278,8 @@ pub(crate) fn alloc_output(len: usize) -> Result<Vec<u8>, FormatError> {
     if ptr.is_null() {
         return Err(failed());
     }
+    // Before anything writes to it, so a large buffer faults in huge pages.
+    crate::bulk_alloc::advise_huge_pages(ptr, len);
     // SAFETY: `ptr` came from the global allocator with the layout of
     // `[u8; len]`, which is exactly what `Vec<u8>` with capacity `len` frees;
     // all `len` bytes are initialised (zero).