Re: About dd & make_request

From: Jens Axboe (axboe@suse.de)
Date: Fri Mar 07 2003 - 10:08:09 EST

Next message: Nicolas Mailhot: "Re: 2.5.64p5 No USB support when APIC mode enabled"
Previous message: Subodh S: "About dd & make_request"
In reply to: Subodh S: "About dd & make_request"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

On Fri, Mar 07 2003, Subodh S wrote:
> Hi,
>
> When run
>
> dd if=/dev/mydevice of=/dev/null count=10
>
> why does my make_request function get called only five times ??

because you didn't change the block size, so you got 5 1024b (default)
buffers thrown at you?

-- Jens Axboe

- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/

Next message: Nicolas Mailhot: "Re: 2.5.64p5 No USB support when APIC mode enabled"
Previous message: Subodh S: "About dd & make_request"
In reply to: Subodh S: "About dd & make_request"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

This archive was generated by hypermail 2b29 : Fri Mar 07 2003 - 22:00:37 EST