On 1/8/24 12:24 PM, Bart Van Assche wrote: > On 1/8/24 10:59, Jens Axboe wrote: >> We call this once per IO, which can be millions of times per second. >> Since nobody really uses io priorities, or at least it isn't very > ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ > > We have plans to set an I/O priority for most Android processes in the > near future. According to what Damien wrote on linux-block, there is > probably a significant number of hard disks for which I/O priority is > configured. The rates at which Android does IO means this won't really make any difference, should probably have qualified the statement with "nobody uses io priorities and does fast IO". >> common, this is all wasted time and can amount to as much as 3% of >> the total kernel time. > > Anyway: > > Reviewed-by: Bart Van Assche <bvanassche@xxxxxxx> Thanks! -- Jens Axboe
