On Fri, 16 Mar 2018 11:25:08 -0700 Wei Wang <wvw@xxxxxxxxxx> wrote: > Change VM_MAX_READAHEAD value from the default 128KB to a configurable > value. This will allow the readahead window to grow to a maximum size > bigger than 128KB during boot, which could benefit to sequential read > throughput and thus boot performance. You can presently run ioctl(BLKRASET) against the block device?
