Re: [RFC PATCH 0/2]lsirq,irqtop: Add filter support

On 3/10/25 05:14, Karel Zak wrote:
> On Thu, Mar 06, 2025 at 06:51:59PM GMT, Joe Jin wrote:
>> Sometimes people may only be interested in a specific IRQ, adding regular
>> expression support can help engineers find/monitor IRQs easily.
> Ah, the libsmartcols provides a filter. See, for example, misc-utils/lsblk.c and
> the "-Q" command line option, and also "man scols-filter".
>
> scols_new_filter()
> scols_line_apply_filter()
> scols_line_is_filled()
> ... etc.
>
> https://www.kernel.org/pub/linux/utils/util-linux/v2.41/libsmartcols-docs/libsmartcols-Filters-and-counters.html
>
> The filter allows the creation of complex queries, so if we integrate
> it into lsirq and irqtop, it will be possible to use things like:
>
>     irqtop -Q 'NAME ~= "PCI\-.*" && TOTAL > 100'

This looks more powerful, thanks for your suggestions.

Best Regards,
Joe
>
>
>   Karel
>