Re: [dpdk-dev] [PATCH 3/3] test: add UT for power turbo feature

["Burakov, Anatoly" <anatoly.burakov@intel.com>]

On 07-Mar-19 1:59 PM, Lukasz Krakowiak wrote:
> Add UT check_power_turbo.
> 
> Signed-off-by: Lukasz Krakowiak <lukaszx.krakowiak@intel.com>
> ---
>   app/test/test_power_cpufreq.c | 72 +++++++++++++++++++++++++++++++++++
>   1 file changed, 72 insertions(+)
> 
> diff --git a/app/test/test_power_cpufreq.c b/app/test/test_power_cpufreq.c
> index d099f2f47..c75c9bf1c 100644
> --- a/app/test/test_power_cpufreq.c
> +++ b/app/test/test_power_cpufreq.c
> @@ -366,6 +366,59 @@ check_power_freq_min(void)
>   	return 0;
>   }
>   
> +/* Check rte_power_turbo() */
> +static int
> +check_power_turbo(void)
> +{
> +	int ret;
> +
> +	if (rte_power_turbo_status(TEST_POWER_LCORE_ID) == 0) {
> +		printf("Turbo not available on lcore %u, skipping test\n",
> +		TEST_POWER_LCORE_ID);

Misleading indentation, please add two tabs to the second line of 
printf() statement.

> +		return 0;
> +	}
> +
> +	/* test with an invalid lcore id */
> +	ret = rte_power_freq_enable_turbo(TEST_POWER_LCORE_INVALID);
> +	if (ret >= 0) {
> +		printf("Unexpectedly enable turbo successfully "
> +				"on lcore %u\n", TEST_POWER_LCORE_INVALID);

Please don't break up strings to multiple lines.

> +		return -1;
> +	}
> +	ret = rte_power_freq_enable_turbo(TEST_POWER_LCORE_ID);
> +	if (ret < 0) {
> +		printf("Fail to enable turbo on lcore %u\n",
> +							TEST_POWER_LCORE_ID);

I wish there was a middle ground between no indentation and way too much 
indentation...

> +		return -1;
> +	}
> +
> +	/* Check the current frequency */
> +	ret = check_cur_freq(TEST_POWER_LCORE_ID, 0);
> +	if (ret < 0)
> +		return -1;
> +
> +	/* test with an invalid lcore id */
> +	ret = rte_power_freq_disable_turbo(TEST_POWER_LCORE_INVALID);
> +	if (ret >= 0) {
> +		printf("Unexpectedly disable turbo successfully "
> +				"on lcore %u\n", TEST_POWER_LCORE_INVALID);

Same as above, don't break up strings.

> +		return -1;
> +	}
> +	ret = rte_power_freq_disable_turbo(TEST_POWER_LCORE_ID);
> +	if (ret < 0) {
> +		printf("Fail to disable turbo on lcore %u\n",
> +							TEST_POWER_LCORE_ID);

Same as above, two tabs is enough indentation.

> +		return -1;
> +	}
> +
> +	/* Check the current frequency */
> +	ret = check_cur_freq(TEST_POWER_LCORE_ID, 1);
> +	if (ret < 0)
> +		return -1;
> +
> +	return 0;
> +}
> +
>   static int
>   test_power_cpufreq(void)
>   {
> @@ -427,6 +480,21 @@ test_power_cpufreq(void)
>   				"been initialised\n");
>   		goto fail_all;
>   	}
> +	if (rte_power_turbo_status == NULL) {
> +		printf("rte_power_turbo_status should not be NULL, environment has not "
> +				"been initialised\n");

Here and below:

I don't think saying *why* it should not be NULL - just saying that it 
shouldn't be NULL is enough. Maybe mention why it's supposed to be not 
NULL in comments here.

Also, i have a suspicion that the message is wrong - why would status be 
null if the environment was initialized? Presumably it's the other way 
around?

> +		goto fail_all;
> +	}
> +	if (rte_power_freq_enable_turbo == NULL) {
> +		printf("rte_power_freq_enable_turbo should not be NULL, environment has not "
> +				"been initialised\n");
> +		goto fail_all;
> +	}
> +	if (rte_power_freq_disable_turbo == NULL) {
> +		printf("rte_power_freq_disable_turbo should not be NULL, environment has not "
> +				"been initialised\n");
> +		goto fail_all;
> +	}
>   
>   	ret = rte_power_exit(TEST_POWER_LCORE_ID);
>   	if (ret < 0) {
> @@ -502,6 +570,10 @@ test_power_cpufreq(void)
>   	if (ret < 0)
>   		goto fail_all;
>   
> +	ret = check_power_turbo();
> +	if (ret < 0)
> +		goto fail_all;
> +
>   	ret = rte_power_exit(TEST_POWER_LCORE_ID);
>   	if (ret < 0) {
>   		printf("Cannot exit power management for lcore %u\n",
> 


-- 
Thanks,
Anatoly