Re: [PATCH v3 5/5] unpack-objects: unpack_non_delta_entry() read data in a stream

> On Wed, Dec 1, 2021 at 2:38 AM Derrick Stolee <stolee@gmail.com> wrote:
>> These pack-files contain (mostly) small objects, no large blobs.
>> I know that's not the target of your efforts, but it would be
>> good to avoid a regression here.
>>
>> Thanks,
>> -Stolee
> 
> With your help, I did catch this performance problem, which was
> introduced in this patch:
> https://lore.kernel.org/git/20211122033220.32883-4-chiyutianyi@gmail.com/
> 
> This patch changes the original data reading ino to stream reading, but
> its problem is that even for the original reading of the whole object data,
> it still generates an additional git_deflate() and subsequent transfer.