Re: [RFC PATCH 0/2]lsirq,irqtop: Add filter support
Karel Zak <[email protected]>
| Newsgroups | org.kernel.vger.util-linux |
|---|---|
| Message-ID | <qdiia2fmgfxwgr75qjdgxuiitaoo66tsthajqxs6mrtca6oqh4@irpn3e44w4sw> |
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'
Karel
--
Karel Zak <[email protected]>
http://karelzak.blogspot.com