We are working on a performance_testing repository.
Here is a history of the commits:

branch main 			

commit f665df376fa57880b5edfb85b156c7703601980e (tag: start)
sample0 1M created
commit a17812c13a69986c1103e0d06ff0a0b59a3a4a63
sample1 1M created
commit bd9d8e9421c3253abba47b9def480f1b2d595568
sample3 1M created
commit 0e599f3b47bf3200dc6e2734df0c6e655c0d8dde
sample4 5M created
commit effb3cab262e6e1e8242e524e1862b6f77d7ad38
sample4 5M deleted

branch secondary

commit 643cdbbda81f4c4f26513b9d6ecca3d436e97040
sample0 1M created 
commit b4bac1f2a2c1b4ab325751748b9496cccc65b082
sample1 1M created
commit e69695f08e79c160045b3319297597a9d8c9b513
sample2 500K created

Which gives us the latest state:
branch main
sample0	1M
sample1	1M
sample3	1M

branch secondary
sample0 1M
sample1 1M
sample2 500K