On Wed, Mar 23, 2022 at 05:18:35PM -0300, Thiago Becker wrote: > Recent changes in the linux kernel caused NFS readahead to default to > 128 from the previous default of 15 * rsize. This causes performance > penalties to some read-heavy workloads, which can be fixed by > tuning the readahead for that given mount. Which recent changes? Something in NFS or something in the VFS/MM? Did you even think about asking a wider audience than the NFS mailing list? I only happened to notice this while I was looking for something else, otherwise I would never have seen it. The responses from other people to your patches were right; you're trying to do this all wrong. Let's start out with a bug report instead of a solution. What changed and when?
