# Thin pack 2 messages from 2013-12-05 to 2013-12-05. Participants: 乙酸鋰, Duy Nguyen. Thread: https://gitlist.dev/t/35480 ## 乙酸鋰, 2013-12-05 01:44 Subject: Thin pack Message-ID: URL: https://gitlist.dev/e/CAHtLG6SBOi%2Bv7uchwr1iHtMvzwLOW1hkpNT5x4vVhOKL%3Dt2SdA%40mail.gmail.com ``` Hi, What are the difference between pre 1.8.5 and 1.8.5 about thin pack support? Could you describe thin pack? From the doc, it says --thin is default option. Is that true? ``` ## Duy Nguyen, 2013-12-05 03:43 Subject: Re: Thin pack Message-ID: URL: https://gitlist.dev/e/CACsJy8D0wrBJnigNaPt%3D_5Sa1PWrqaWzttA8Mun3H74mzYRNVA%40mail.gmail.com In-Reply-To: ``` On Thu, Dec 5, 2013 at 8:44 AM, 乙酸鋰 wrote: > What are the difference between pre 1.8.5 and 1.8.5 about thin pack support? No idea. > Could you describe thin pack? It gets a bit technical. Under the hood objects are deltified, only the differences between an object and its base are stored. If both the diff and the base are in a pack, it's a normal pack. If the pack lacks the base, it's "thin". This makes thin packs more suited for network transfer because you transfer much less. Imagine you have a 5k file, you fetch another version of the same file that changes 1 line. With thin pack, you receive just that line (not entirely true, but good enough). Without thin pack, you also receive the 5k file you already have because it's the base of the new version. > From the doc, it says --thin is default option. Is that true? Yes. -- Duy ```