From: Junio C Hamano <gitster@pobox.com>
Date: Fri, 19 Mar 2021 00:13:58 GMT
Subject: Re: [PATCH] pack-bitmap: avoid traversal of objects referenced by uninteresting tag
Message-ID: <xmqqk0q4ov95.fsf@gitster.g>
In-Reply-To: <e342077ed116fb47c6a0fa645abd5558310efb09.1615993858.git.ps@pks.im>

Patrick Steinhardt <ps@pks.im> writes:

> While most benchmarks are probably in the range of noise, the newly
> added 5310.8 benchmark shows a performance improvement of 25600%.

which sounds impressive, but ...

> +test_perf 'rev-list with negation (objects)' '
> +	git rev-list --not --all --use-bitmap-index --objects >/dev/null
> +'

... is this an interesting use case to begin with, without any
positive end?

> +
>  test_perf 'rev-list count with blob:none' '
>  	git rev-list --use-bitmap-index --count --objects --all \
>  		--filter=blob:none >/dev/null