Re: bitmap creation failed

From: Stefan Beller <sbeller@google.com>
Date: Sep 1, 2016, 23:37 UTC
Message-ID: <CAGZ79kZdk0rkmryTQzJgXvX8Jxm2=iYfB1ttPq0qRHbPgS4UsQ@mail.gmail.com>
In-Reply-To: <1472753809733-7657450.post@n2.nabble.com>

On Thu, Sep 1, 2016 at 11:16 AM, gjarms <gjarms@gmail.com> wrote:

Show 21 quoted lines

> Hi Git Experts,
>
> We have been exploring various ways to improve git cloning time, one among
> them is using bitmap which is suppose to save time "counting objects".  but
> i have problem creating bitmap since the repository contains 100's of pack
> files. the bitmap file is not created when i use "git gc".
>
> I have the following entries in my .gitconfig.
>
> [pack]
>         packSizeLimit = 10m
>         writebitmaps = on
>         writeBitmapHashCache = on
>
> If i just dont use "packSizeLimit = 10m", then bitmap is created just by
> running git gc
>
> Can you please make me understand ?, What i understood is that the bitmap is
> created when there is a single pack file, but if i split it into multiple
> pack file, the bitmap generation fails with the warning
> "warning: disabling bitmap writing, as some objects are not being packed".

So I guess your single pack is larger than 10m, so it tries to create multiple packs, and that is not supported as bitmaps only operate on one pack.

Stefan

Show 9 quoted lines

>
> Regards,
> Arumuga
>
>
>
> --
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