On Fri, Mar 16, 2018, 14:33 Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> wrote:
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?
Yeah we are doing tuning in userland after init. But this is something we thought could help in very early stage.
