RE: git hangs with --separate-git-dir

From: Tim Walter (Visual Concepts) <twalter@vcentertainment.com>
Date: May 17, 2023, 16:31 UTC
Message-ID: <BY5PR14MB365494C9907D93F7C568710DA57E9@BY5PR14MB3654.namprd14.prod.outlook.com>
In-Reply-To: <CA+JQ7M8CgqKxMRrR2TTKHLbBsiUbdQs=N_bN=Uv7d9OqbTbXLw@mail.gmail.com>

Ok Thanks Erik, I don't think I'll be able to get our security team to let me uninstall the anti-virus software. I'm going to just create the repo without --separate-git-dir and then move it after Which does work.

As you said, git is not a system level driver etc, so it must be in some other driver. Could be anything.

-----Original Message-----
From: Erik Cervin Edin <erik@cervined.in> 
Sent: Wednesday, May 17, 2023 12:12 AM
To: brian m. carlson <sandals@crustytoothpaste.net>; Tim Walter (Visual Concepts) <twalter@vcentertainment.com>; git@vger.kernel.org
Subject: Re: git hangs with --separate-git-dir

On Wed, May 17, 2023 at 12:24 AM Tim Walter (Visual Concepts) <twalter@vcentertainment.com> wrote:

Show 7 quoted lines

>
> it's SSD, actually NVme, and the PC is 128GB ram 64 core very fast.
> Both drives are local SSD drives, the working directory on D: and the repo on F:.
> the 3 hour thing is not a problem as such  (it's a little frustrating 
> that git is single threaded, but regardless, this is not the issue I 
> am concerned with) it's only 3 hours once, on the very first git add when I create the repo I can live with that, I was just giving context.
>

I've worked on large repos (100k+ files) and 3 hours sounds unreasonable to me. That's what, 27.7 mb/s? My guess would probably also be anti-virus or some privilege management type software.

Maybe try using procmon while you init and monitor all the processes to get a better understanding of what could be the problem https://urldefense.proofpoint.com/v2/url?u=https-3A__learn.microsoft.com_en-2Dus_sysinternals_downloads_procmon&d=DwIFaQ&c=RKDswobrOGdp5vDCbl5XjxW8HqrsRSr80dGTvu3rE9Q&r=lgWugODVl_2jeaOcjK2bD5oXKuwC73DWE5o6RZdQlHI&m=AwjvVhBZKWaxRU7lXn3bc6W20k2WAhdJarbxIl2bm-tOoU9Ygcd137hEqlAcCcBz&s=a0fvR1gPsaxSHO_LLXUxWCuMNPlrqSuhpZNExpr9q7A&e= I've used that successfully in the past to figure out the source of unexplained performance problems (spoiler: it was privilege management)