linux-kernel - Re: [PATCH 06/15 V3] perf, c2c: Add in new options to configure latency and stores

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Message-ID: <20140329171138.GF2022@krava.redhat.com>
Date:	Sat, 29 Mar 2014 18:11:38 +0100
From:	Jiri Olsa <jolsa@...hat.com>
To:	Don Zickus <dzickus@...hat.com>
Cc:	acme@...stprotocols.net, LKML <linux-kernel@...r.kernel.org>,
	jmario@...hat.com, fowles@...each.com, peterz@...radead.org,
	eranian@...gle.com, andi.kleen@...el.com
Subject: Re: [PATCH 06/15 V3] perf, c2c: Add in new options to configure
 latency and stores

On Mon, Mar 24, 2014 at 03:36:57PM -0400, Don Zickus wrote:
> Modified the code to allow latency settings to be tweaked on the command line
> and also the ability to dynamically profile stores (or disable using stores).
> 
> This allows the tool to be used on older Intel platforms like Westmere.
> 
> Signed-off-by: Don Zickus <dzickus@...hat.com>
> ---

SNIP

> @@ -316,6 +369,12 @@ int cmd_c2c(int argc, const char **argv, const char *prefix __maybe_unused)
>  	};
>  	const struct option c2c_options[] = {
>  	OPT_BOOLEAN('r', "raw_records", &c2c.raw_records, "dump raw events"),
> +	OPT_INTEGER('l', "latency-level", &lat_level,
> +		 "specify the latency threshold for loads [default=30]"),
> +	OPT_INTEGER('p', "precision-level", &prec_level,
> +		 "specify the precision level of events (0,1,2,3) [default=1]"),

could we get also option for user space modifier?
I needed to hack it in for my tests ;-)

thanks,
jirka
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