Re: scratch/hash-table-perf 2d28042f56a 19/35: Use non-Lisp allocation for internal hash-table vectors

[Dmitry Gutov]

On 04/01/2024 17:56, Mattias Engdegård wrote:
> +/* Like xmalloc, but makes allocation count toward the total consing.
> +   Return NULL for a zero-sized allocation.  */
> +void *
> +hash_table_alloc_bytes (ptrdiff_t nbytes)
> +{
> +  if (nbytes == 0)
> +    return NULL;
> +  tally_consing (nbytes);
> +  return xmalloc (nbytes);
> +}

Sorry if it's a stupid question, but if the operation doesn't add any 
Lisp "garbage", why increase the consing counter? That is likely 
triggers more GCs earlier which otherwise might not run, and if there 
are no slots to GC, it seems like they would run in vain.