linux-kernel - Re: [PATCH 0/8] perf buildid-cache: Add clean command

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Message-ID: <20141202122518.GA7744@krava.brq.redhat.com>
Date:	Tue, 2 Dec 2014 13:25:18 +0100
From:	Jiri Olsa <jolsa@...hat.com>
To:	Arnaldo Carvalho de Melo <acme@...hat.com>
Cc:	Jiri Olsa <jolsa@...nel.org>, linux-kernel@...r.kernel.org,
	Corey Ashford <cjashfor@...ux.vnet.ibm.com>,
	David Ahern <dsahern@...il.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Ingo Molnar <mingo@...nel.org>,
	Namhyung Kim <namhyung@...nel.org>,
	Paul Mackerras <paulus@...ba.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Stephane Eranian <eranian@...gle.com>,
	Steven Rostedt <rostedt@...dmis.org>
Subject: Re: [PATCH 0/8] perf buildid-cache: Add clean command

On Mon, Dec 01, 2014 at 08:29:19PM -0200, Arnaldo Carvalho de Melo wrote:

SNIP

> [acme@...dy wb]$ 
> 
> If we keep the way it is, I think it would be clearer to add a -l/--list
> command and that would:
> 
>   perf buildid-cache --list  # list all the files in the cache
>   perf buildid-cache --list 3d  # list 3 days old files
>   perf buildid-cache --list +3d  # list files 3 days or more older
>   perf buildid-cache --list -3d  # list files up to 3 days old

ok, I was up to old files (and big files) removal only.. not sure
the other way will be actually needed.. but it's easy enought to
add

> 
> And all these would print the sum of the matching files, i.e. the space
> those files use in the filesystem.
>  
> > Remove cache files older than 3 days:
> >   $ perf buildid-cache clean 3d -r
> 
>   perf buildid-cache --remove [-+]Nd # Same semantics as above
> 
> >     
> > Total cache removal:
> >   $ perf buildid-cache clean -r
> 
>  perf buildid-cache --remove '*'

hum, maybe '--removal all' might be better

>  
> > Remove and display items bigger than 200M
> >   $ perf buildid-cache clean -r -a 200M
> 
> But yeah, perhaps we could switch to having subcommands and add:
> 
>   perf buildid-cache [add|remove|update|list]
> 
> What do you think?

yep, those commands seem nicer.. 

let's see of there're other comments and I'll come up with
new interface after..

thanks,
jirka
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