Rclone 1.53.3 memory (leak?) problem

Hi,

I have uncapped the docker container and created a profile with the old version, the new version and also the new version using the --azureblob-memory-pool-use-mmap flag.

I have also done a cpuprofile if that can be of any help.

It does not look like --azureblob-memory-pool-use-mmap helped at all.

Let me know if you need me to try something else.