# Re: Missing commits with git log --follow

1 messages from 2022-05-05 to 2022-05-05. Participants: Rihards Teteris.
Thread: https://gitlist.dev/t/57846

## Rihards Teteris, 2022-05-05 06:36

Subject: Re: Missing commits with git log --follow
Message-ID: <GV1PR01MB8562EB91A12876611CDD8371EDC29@GV1PR01MB8562.eurprd01.prod.exchangelabs.com>
URL: https://gitlist.dev/e/GV1PR01MB8562EB91A12876611CDD8371EDC29%40GV1PR01MB8562.eurprd01.prod.exchangelabs.com
In-Reply-To: <GV1PR01MB85627EC349E8893EB3B5F47CEDC29@GV1PR01MB8562.eurprd01.prod.exchangelabs.com>

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Hello Git,

I think I have found quite interesting bug.
For some files git log --follow is missing some commits, even though I would expect it to find more commits.
I found a case for that in the git repository itself too:

# git --version
git version 2.36.0
# time git log --format=%H contrib/git-resurrect.sh
e37eae0c1e13cb418947383f7c803d9463bfa3d7
d047154e7b2ab9c7191b0d72484012085051d521
3c833cae446364872b759c7622af2760a2f81a11
fba275dc93319ffa31ecebe015f8cda671fcf0e5
51ba8ce372ad9fcab04a013252b819625c44770a
50ab6558bf688e15048e189bdaf9174b217e1748
e1ff064e1bffedb917c491681b7bfd4d66633ef5
real 0m0.631s
user 0m0.428s
sys 0m0.120s

# time git log --format=%H --follow contrib/git-resurrect.sh
e37eae0c1e13cb418947383f7c803d9463bfa3d7
d047154e7b2ab9c7191b0d72484012085051d521
fba275dc93319ffa31ecebe015f8cda671fcf0e5
51ba8ce372ad9fcab04a013252b819625c44770a
50ab6558bf688e15048e189bdaf9174b217e1748
e1ff064e1bffedb917c491681b7bfd4d66633ef5
real 0m1.386s
user 0m1.272s
sys 0m0.066s

You see that with --follow 3c833cae446364872b759c7622af2760a2f81a11 commit is missing.

I also timed it, to note that git log --follow can be much slower. In my project I have seen a case, where git log takes ~10 seconds for a file, but --follow takes ~90 seconds.

Thank you for looking at this.

Best regards,
Rihards
```