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Date: Thu, 7 Jan 2016 09:09:59 +0100
From: Jiri Olsa <jolsa@redhat.com>
To: Namhyung Kim <namhyung@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>, Ingo Molnar <mingo@kernel.org>,
        Peter Zijlstra <a.p.zijlstra@chello.nl>, Jiri Olsa <jolsa@kernel.org>,
        LKML <linux-kernel@vger.kernel.org>, David Ahern <dsahern@gmail.com>,
        Stephane Eranian <eranian@google.com>,
        Andi Kleen <andi@firstfloor.org>,
        Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>,
        Wang Nan <wangnan0@huawei.com>
Subject: Re: [RFC/PATCH v2] perf report: Show random usage tip on the help
 line
Message-ID: <20160107080959.GD20434@krava.brq.redhat.com>
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 <20160107080717.GC20434@krava.brq.redhat.com>
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On Thu, Jan 07, 2016 at 09:07:17AM +0100, Jiri Olsa wrote:
> On Thu, Jan 07, 2016 at 04:46:22PM +0900, Namhyung Kim wrote:
> 
> SNIP
> 
> >  
> >  struct callchain_param	callchain_param = {
> >  	.mode	= CHAIN_GRAPH_ABS,
> > @@ -663,3 +665,28 @@ fetch_kernel_version(unsigned int *puint, char *str,
> >  		*puint = (version << 16) + (patchlevel << 8) + sublevel;
> >  	return 0;
> >  }
> > +
> > +const char *perf_report_tip(const char *dirname)
> > +{
> > +	struct strlist *tips;
> > +	struct str_node *node;
> > +	char *tip = NULL;
> > +	struct strlist_config conf = {
> > +		.dirname = system_path(dirname) ,
> > +	};
> > +
> > +	tips = strlist__new("tips.txt", &conf);
> > +	if (tips == NULL || strlist__nr_entries(tips) == 1) {
> > +		tip = (char *)"Cannot find tips.txt file";
> > +		goto out;
> 
> could we also try to read "./Documentation/tips.txt" ?
> 
> so people who don't install perf and run it from 'tools/perf'
> get some tips as well? ;-)
> 
> [jolsa@krava perf]$ ./perf report --stdio  | tail -3
> #
> # (Cannot find tips.txt file)
> #
> [jolsa@krava perf]$ 

also some people use local user install and it seems
not to be installed under this one as well


[jolsa@krava perf]$ make install
  BUILD:   Doing 'make -j4' parallel build
  SUBDIR   Documentation
  INSTALL  Documentation-man
  INSTALL  trace_plugins
  INSTALL  GTK UI
  INSTALL  binaries
  INSTALL  tests
  INSTALL  perf-read-vdso32
  INSTALL  libexec
  INSTALL  perf-archive
  INSTALL  perf-with-kcore
  INSTALL  strace/groups
  INSTALL  perl-scripts
  INSTALL  python-scripts
  INSTALL  perf_completion-script
  INSTALL  perf-tip
[jolsa@krava perf]$ ./perf report --stdio  | tail -3
#
# (Cannot find tips.txt file)
#

thanks,
jirka