Re: [PATCH 2/2 v4] block/throttle: Add IO submitted information in blkio.throttle

From: Robin Dong
Date: Sat Oct 27 2012 - 06:47:31 EST


2012/10/27 Vivek Goyal <vgoyal@xxxxxxxxxx>:
> On Fri, Oct 26, 2012 at 12:47:48PM +0800, Robin Dong wrote:
>
> [..]
>> @@ -1084,6 +1114,16 @@ static struct cftype throtl_files[] = {
>> .private = offsetof(struct tg_stats_cpu, serviced),
>> .read_seq_string = tg_print_cpu_rwstat,
>> },
>> + {
>> + .name = "throttle.io_submit_bytes",
>
> Do we really need io_submit_bytes stats? Your need seems to be able to
> figure out if there are pending IOs in the group and if you need to
> increase the bandwidth. For that, isn't number of bios enough?

I just want to be more consistent to "io_service_bytes" and "io_serviced" pair

>
> Also even if we retain bytes, let us change it to "io_submitted_bytes".

Since "io_service_bytes" is "service", I use "io_submit_bytes"....
Never mind, "io_submitted_bytes" is much better.

>
> Thanks
> Vivek



--
--
Best Regard
Robin Dong
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