Reduce Miri runtime even more

arrow-buffer/src/buffer/boolean.rs

@@ -1013,7 +1013,12 @@ mod tests {
         let input_buffer_left = BooleanBuffer::from(&input_bools_left[..]);
         let input_buffer_right = BooleanBuffer::from(&input_bools_right[..]);
 
-        for left_offset in 0..200 {
+        #[cfg(miri)]
+        let left_offsets = [0, 1, 7, 8, 63, 64, 65];
+        #[cfg(not(miri))]
+        let left_offsets = 0..200;
+
+        for left_offset in left_offsets {
             for right_offset in [0, 4, 5, 17, 33, 24, 45, 64, 65, 100, 200] {
                 for len_offset in [0, 1, 44, 100, 256, 300, 512] {
                     let len = 1024 - len_offset - left_offset.max(right_offset); // ensure we don't go out of bounds

arrow-ord/src/sort.rs

@@ -4892,6 +4892,7 @@ mod tests {
     }
 
     #[test]
+    #[cfg_attr(miri, ignore)]
     fn fuzz_partition_validity() {
         let mut rng = StdRng::seed_from_u64(0xF00D_CAFE);
         for _ in 0..1_000 {
@@ -5100,6 +5101,7 @@ mod tests {
 
     // Fuzz testing: generate random UTF-8 strings and verify sort correctness
     #[test]
+    #[cfg_attr(miri, ignore)]
     fn test_fuzz_random_strings() {
         let mut rng = StdRng::seed_from_u64(42); // Fixed seed for reproducibility