Re: [PATCH] makedumpfile: Improve progress information for huge memory system.

[Baoquan He]

I tested this patch in local workstation with 16G memory. By feeding
makedumpfile with below parameter, it will disable filter, this can let
makedumpfile dump as many pages as machine has Tera bytes of memory.

core_collector makedumpfile -l --message-level 1

Without this patch, it just updates the progress info by 1 percent each
time. Applying this patch, it will udpate faster, with decimal point
scale. That can note user more previse and more indicative and helpful.

On 01/17/14 at 05:39pm, Baoquan He wrote:
> Backport from upstream.
>
> commit 20ecc0827e7837c52f3903638a59959f8bf17f9e
> Author: HATAYAMA Daisuke 
> Date:   Tue Nov 5 00:29:35 2013 +0900
> [PATCH v2] Improve progress information for huge memory system.
>
> On system with huge memory, percentage in progress information is
> updated at very slow interval, because 1 percent on 1 TiB memory is
> about 10 GiB, which looks like as if system has freezed. Then,
> confused users might get tempted to push a reset button to recover the
> system. We want to avoid such situation as much as possible.
>
> Signed-off-by: HATAYAMA Daisuke <[e-mail]>
>
> Signed-off-by: Baoquan He