Re: [PATCH] kconfig: add kconfig-sym-check static checker

[Nathan Chancellor <nathan@kernel.org>]

On Sun, May 17, 2026 at 12:58:32PM +0300, Andy Shevchenko wrote:
> On Sun, May 17, 2026 at 06:11:28PM +0900, Nathan Chancellor wrote:
> > but I
> > am not sure that it is an obvious one in the grand scheme of things.
> > 
> >   $ hyperfine 'git ls-files "*Kconfig*"' 'find . -name "*Kconfig*"'
> 
> Does this makes caches cold before *each* attempt?

No but if I do so via the '--prepare' option, I see a similar
difference.

> >   Benchmark 1: git ls-files "*Kconfig*"
> >     Time (mean ± σ):      24.6 ms ±   1.0 ms    [User: 18.0 ms, System: 6.1 ms]
> >     Range (min … max):    20.5 ms …  28.7 ms    120 runs
> > 
> >   Benchmark 2: find . -name "*Kconfig*"
> >     Time (mean ± σ):     222.9 ms ±   4.5 ms    [User: 80.6 ms, System: 140.1 ms]
> >     Range (min … max):   216.0 ms … 227.6 ms    13 runs
> > 
> >   Summary
> >     git ls-files "*Kconfig*" ran
> >       9.06 ± 0.43 times faster than find . -name "*Kconfig*"
> > 
> > But I don't know how complicated such checking is in Perl, so I would be
> > willing to see what it looks like.
> 
> 1. Call `git ls-files`,
> 2. if the above fails, call `find`.
> 3. `find` never fails (okay... :-)
> 
> In any language it shouldn't be much code.

Yeah, I guess I would look for '.git' before calling 'git ls-files' but
that should work as well. It's up to Andrew.

-- 
Cheers,
Nathan