# [PATCH] doc: fast-import: contextualize the hardware cost 2 messages from 2025-08-01 to 2025-08-01. Participants: kristofferhaugsbakk@fastmail.com, Junio C Hamano. Thread: https://gitlist.dev/t/63890 ## kristofferhaugsbakk@fastmail.com, 2025-08-01 13:42 Subject: [PATCH] doc: fast-import: contextualize the hardware cost Message-ID: URL: https://gitlist.dev/e/a9bc7547a27aab8bc2404caeb821b7f5c4c10d14.1754055658.git.code%40khaugsbakk.name ``` From: Kristoffer Haugsbakk 6e411d20440 (Initial draft of fast-import documentation., 2007-02-05) pointed out how much time a fast-import took on some hardware with a specific cost. Let’s further point out that this experiment was done in 2007. So modern hardware should have no issues with such a repo. Also move the parenthetical to the end now that it contains four words. Signed-off-by: Kristoffer Haugsbakk --- Documentation/git-fast-import.adoc | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Documentation/git-fast-import.adoc b/Documentation/git-fast-import.adoc index d2327842003..6f9763c11b3 100644 --- a/Documentation/git-fast-import.adoc +++ b/Documentation/git-fast-import.adoc @@ -182,7 +182,7 @@ amount of memory usage and processing time. Assuming the frontend is able to keep up with fast-import and feed it a constant stream of data, import times for projects holding 10+ years of history and containing 100,000+ individual commits are generally completed in just 1-2 -hours on quite modest (~$2,000 USD) hardware. +hours on quite modest hardware (~$2,000 USD in 2007). Most bottlenecks appear to be in foreign source data access (the source just cannot extract revisions fast enough) or disk IO (fast-import base-commit: e813a0200a7121b97fec535f0d0b460b0a33356c -- 2.50.1 ``` ## Junio C Hamano, 2025-08-01 14:44 Subject: Re: [PATCH] doc: fast-import: contextualize the hardware cost Message-ID: URL: https://gitlist.dev/e/xmqqo6szm799.fsf%40gitster.g In-Reply-To: ``` kristofferhaugsbakk@fastmail.com writes: > From: Kristoffer Haugsbakk > > 6e411d20440 (Initial draft of fast-import documentation., 2007-02-05) > pointed out how much time a fast-import took on some hardware with a > specific cost. Let’s further point out that this experiment was done > in 2007. So modern hardware should have no issues with such a repo. > > Also move the parenthetical to the end now that it contains four words. > > Signed-off-by: Kristoffer Haugsbakk > --- > Documentation/git-fast-import.adoc | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/Documentation/git-fast-import.adoc b/Documentation/git-fast-import.adoc > index d2327842003..6f9763c11b3 100644 > --- a/Documentation/git-fast-import.adoc > +++ b/Documentation/git-fast-import.adoc > @@ -182,7 +182,7 @@ amount of memory usage and processing time. Assuming the frontend > is able to keep up with fast-import and feed it a constant stream of data, > import times for projects holding 10+ years of history and containing > 100,000+ individual commits are generally completed in just 1-2 > -hours on quite modest (~$2,000 USD) hardware. > +hours on quite modest hardware (~$2,000 USD in 2007). That is a definite improvement. Thanks. ```