Re: First Git status takes 40+ minutes, when mounting fileystem/diskimage with 50G GIT repo + 900G of builds articles

> Johannes Sixt <j6t@kdbg.org> writes:
> 
>> Am 22.08.19 um 20:02 schrieb Saravanan Shanmugham (sarvi):
>>> We have a diskimage/fileysystem that has a 50G Git repository + 900G
>>> of binary/build articles and untracked files. When we mount such a
>>> diskimage, The verify first “git status” command can take as long
>>> 40-50minutes. Subsequent “git status” finish in under 5-10 seconds.>
>>> If I had a diskimage of just the 50G source repository, and I mount
>>> and do a “git status” takes around 15 seconds.
>> Are you saying that you commonly mount and unmount the filesystem?
>>
>> Git tracks a device number in the index. Could it happen that it is
>> different every time you mount the filesystem?
> 
> I read the above to mean that a diskimage file is treated as a
> virtual block device on which a filesystem image exists, and it is
> mounted via the lookback device mechanism.  In such a case, I do not
> think stability of i-num would not be an issue (the filesystem image
> would record them all).