Re: [MAKDUMPFILE PATCH] Add option to estimate the size of vmcore dump files

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Hi, Kazu, Julien and Bhupesh

在 2020年10月28日 16:32, HAGIO KAZUHITO(萩尾 一仁) 写道:
> I'm rethinking about what command options makedumpfile should have.
> If once we add an option to makedumpfile, we cannot change it easily,
> so I'd like to think carefully.
> 
> The calculated size might be useful if it's printed so that it can be
> easily post-processed by scripts, e.g. for automated tests.  If so,
> makedumpfile already prints its statistics with "--message-level 16",
> and it might be useful to also print them by an option like "--show-stats".
> 
>   # makedumpfile --show-stats -l -d 31 vmcore dump.ld31
>   total_pages xxx
>   excluded_pages yyy
>   ...
>   write_bytes zzz
> 
> Also, if we also have "--dry-run" option to not write actually, it's
> explicit and meets Bhupesh's use case.  What do you think?
> 

It seems that adding a statistical option could be better than nothing.

Do you have any decisions on this issue? Or any thoughts?


Thanks
Lianbo

> Thanks,
> Kazu


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