Hi all,

I am investigating a performance issue related to uploading s3 objects and
would appreciate any insights.

I have a bucket with ~200 million objects. I noticed that re-uploading
files that already exist in the bucket appears to be slower than uploading
them for the first time.

To verify this behavior, I created a small test case with a new empty
bucket:
- 500 files with random sizes between 5 KB and 50 KB.
- First time upload took 8 seconds: s3cmd put files/* s3://my-bucket/
- Second upload (same files, no changes) took 10 seconds

I had expected the second upload to be faster or at least the same.

Is this expected behavior? Any guidance on this would be appreciated.

Thanks!

Sinan
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