WillAyd commented on PR #280:
URL: https://github.com/apache/arrow-nanoarrow/pull/280#issuecomment-1683873167
Hmm very strange. I also pieced together this benchmark in C:
```c
#include <stdlib.h>
#include "nanoarrow.h"
#include "buffer_inline.h"
int main() {
int N = 1000000;
int8_t* values = malloc(N);
memset(values, 0, N);
struct ArrowBitmap bitmap;
ArrowBitmapInit(&bitmap);
ArrowBitmapReserve(&bitmap, N);
ArrowBitmapAppendInt8Unsafe(&bitmap, values, N);
for (int i = 0; i < 10000; i++) {
ArrowBitsUnpackInt8(bitmap.buffer.data, 0, N, values);
}
free(values);
}
```
which I think generally showed improvement, but not to the degree and
consistency with what I was seeing in the Python/Cython library I originally
noticed this in. Will see if I can test some more
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