Hi Lucene Experts, I wanted to understand the performance difference between opening and reading the whole file using an IndexInput with IoContext as RANDOM vs READ.
I can see .vec files(storing the flat vectors) are opened with RANDOM and whereas dvd files are opened as READ. As per my testing with files close to size 5GB storing (~1.6M docs with each doc 3072 bytes), I can see that when full file checksum validation is happening for a file opened via READ context it is faster than RANDOM. The amount of time difference I am seeing is close to 50%. Hence the performance question is coming up, I wanted to understand is this understanding correct? Thanks Navneet
