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From: Dharmik Thakkar <Dharmik.Thakkar@arm.com>
To: Honnappa Nagarahalli <Honnappa.Nagarahalli@arm.com>
Cc: Bruce Richardson <bruce.richardson@intel.com>,
	Vladimir Medvedkin <vladimir.medvedkin@intel.com>,
	Ruifeng Wang <Ruifeng.Wang@arm.com>, Gavin Hu <Gavin.Hu@arm.com>,
	"dev@dpdk.org" <dev@dpdk.org>, nd <nd@arm.com>,
	"stable@dpdk.org" <stable@dpdk.org>
Subject: Re: [dpdk-dev] [PATCH v2 3/4] test/lpm: remove error checking in rcu qsbr perf
Date: Tue, 3 Nov 2020 04:56:22 +0000
Message-ID: <262639BF-81CC-4F9F-A402-844AC7CB98B9@arm.com> (raw)
In-Reply-To: <DBAPR08MB5814E1E187C47B6B99EDE27098110@DBAPR08MB5814.eurprd08.prod.outlook.com>



> On Nov 2, 2020, at 7:21 PM, Honnappa Nagarahalli <Honnappa.Nagarahalli@arm.com> wrote:
> 
> <snip>
> 
>> 
>> Remove redundant error checking for reader threads since they never return
>> error.
>> 
>> Fixes: eff30b59cc2e ("test/lpm: add RCU performance tests")
>> Cc: honnappa.nagarahalli@arm.com
>> Cc: stable@dpdk.org
>> 
>> Signed-off-by: Dharmik Thakkar <dharmik.thakkar@arm.com>
>> Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
>> ---
>> app/test/test_lpm_perf.c | 21 ++++++++-------------
>> 1 file changed, 8 insertions(+), 13 deletions(-)
>> 
>> diff --git a/app/test/test_lpm_perf.c b/app/test/test_lpm_perf.c index
>> 55084816ab91..224c92fa3d65 100644
>> --- a/app/test/test_lpm_perf.c
>> +++ b/app/test/test_lpm_perf.c
>> @@ -554,11 +554,10 @@ test_lpm_rcu_perf_multi_writer(void)
>> 		__atomic_load_n(&gwrite_cycles, __ATOMIC_RELAXED)
>> 		/ TOTAL_WRITES);
>> 
>> -	/* Wait and check return value from reader threads */
>> 	writer_done = 1;
>> +	/* Wait until all readers have exited */
>> 	for (i = 2; i < num_cores; i++)
>> -		if (rte_eal_wait_lcore(enabled_core_ids[i]) < 0)
>> -			goto error;
>> +		rte_eal_wait_lcore(enabled_core_ids[i]);
>> 
>> 	rte_lpm_free(lpm);
>> 	rte_free(rv);
>> @@ -603,10 +602,9 @@ test_lpm_rcu_perf_multi_writer(void)
>> 		/ TOTAL_WRITES);
>> 
>> 	writer_done = 1;
>> -	/* Wait and check return value from reader threads */
>> +	/* Wait until all readers have exited */
>> 	for (i = 2; i < num_cores; i++)
>> -		if (rte_eal_wait_lcore(enabled_core_ids[i]) < 0)
>> -			goto error;
>> +		rte_eal_wait_lcore(enabled_core_ids[i]);
>> 
>> 	rte_lpm_free(lpm);
>> 
>> @@ -710,10 +708,9 @@ test_lpm_rcu_perf(void)
>> 		(double)total_cycles / TOTAL_WRITES);
>> 
>> 	writer_done = 1;
>> -	/* Wait and check return value from reader threads */
>> +	/* Wait until all readers have exited */
>> 	for (i = 0; i < num_cores; i++)
>> -		if (rte_eal_wait_lcore(enabled_core_ids[i]) < 0)
>> -			goto error;
>> +		if (rte_eal_wait_lcore(enabled_core_ids[i]);
>                             ^^ Do we need the 'if' statement?

No, will remove in the next version.

>> 
>> 	rte_lpm_free(lpm);
>> 	rte_free(rv);
>> @@ -769,11 +766,9 @@ test_lpm_rcu_perf(void)
>> 		(double)total_cycles / TOTAL_WRITES);
>> 
>> 	writer_done = 1;
>> -	/* Wait and check return value from reader threads */
>> +	/* Wait until all readers have exited */
>> 	for (i = 0; i < num_cores; i++)
>> -		if (rte_eal_wait_lcore(enabled_core_ids[i]) < 0)
>> -			printf("Warning: lcore %u not finished.\n",
>> -				enabled_core_ids[i]);
>> +		rte_eal_wait_lcore(enabled_core_ids[i]);
>> 
>> 	rte_lpm_free(lpm);
>> 
>> --
>> 2.17.1


  reply	other threads:[~2020-11-03  4:56 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-29 15:36 [dpdk-dev] [PATCH 1/4] test/lpm: fix cycle calculation " Dharmik Thakkar
2020-10-29 15:36 ` [dpdk-dev] [PATCH 2/4] test/lpm: return error on failure " Dharmik Thakkar
2020-10-29 15:36 ` [dpdk-dev] [PATCH 3/4] test/lpm: remove error checking " Dharmik Thakkar
2020-10-29 15:36 ` [dpdk-dev] [PATCH 4/4] test/lpm: avoid code duplication " Dharmik Thakkar
2020-11-02 17:17   ` Medvedkin, Vladimir
2020-11-02 22:11     ` Dharmik Thakkar
2020-11-02 10:08 ` [dpdk-dev] [PATCH 1/4] test/lpm: fix cycle calculation " David Marchand
2020-11-02 15:11 ` Bruce Richardson
2020-11-02 16:58   ` Dharmik Thakkar
2020-11-02 17:21     ` Medvedkin, Vladimir
2020-11-02 17:33     ` Bruce Richardson
2020-11-02 23:51 ` [dpdk-dev] [PATCH v2 0/4] test/lpm: fix rcu qsbr perf test Dharmik Thakkar
2020-11-02 23:52   ` [dpdk-dev] [PATCH v2 1/4] test/lpm: fix cycle calculation in rcu qsbr perf Dharmik Thakkar
2020-11-03  1:30     ` Honnappa Nagarahalli
2020-11-02 23:52   ` [dpdk-dev] [PATCH v2 2/4] test/lpm: return error on failure " Dharmik Thakkar
2020-11-03  1:28     ` Honnappa Nagarahalli
2020-11-03  4:42       ` Dharmik Thakkar
2020-11-02 23:52   ` [dpdk-dev] [PATCH v2 3/4] test/lpm: remove error checking " Dharmik Thakkar
2020-11-03  1:21     ` Honnappa Nagarahalli
2020-11-03  4:56       ` Dharmik Thakkar [this message]
2020-11-02 23:52   ` [dpdk-dev] [PATCH v2 4/4] test/lpm: avoid code duplication " Dharmik Thakkar
2020-11-03  4:21     ` Honnappa Nagarahalli
2020-11-03  4:33       ` Dharmik Thakkar
2020-11-03  5:32         ` Honnappa Nagarahalli
2020-11-03 14:03           ` Dharmik Thakkar
2020-11-03 14:51             ` Honnappa Nagarahalli
2020-11-03 18:01             ` Medvedkin, Vladimir
2020-11-03  5:12   ` [dpdk-dev] [PATCH v3 0/4] test/lpm: fix rcu qsbr perf test Dharmik Thakkar
2020-11-03  5:12     ` [dpdk-dev] [PATCH v3 1/4] test/lpm: fix cycle calculation in rcu qsbr perf Dharmik Thakkar
2020-11-03  5:12     ` [dpdk-dev] [PATCH v3 2/4] test/lpm: return error on failure " Dharmik Thakkar
2020-11-03  5:21       ` Honnappa Nagarahalli
2020-11-03  5:12     ` [dpdk-dev] [PATCH v3 3/4] test/lpm: remove error checking " Dharmik Thakkar
2020-11-03  5:22       ` Honnappa Nagarahalli
2020-11-03  5:12     ` [dpdk-dev] [PATCH v3 4/4] test/lpm: avoid code duplication " Dharmik Thakkar
2020-11-03 22:23     ` [dpdk-dev] [PATCH v4 0/4] test/lpm: fix rcu qsbr perf test Dharmik Thakkar
2020-11-03 22:23       ` [dpdk-dev] [PATCH v4 1/4] test/lpm: fix cycle calculation in rcu qsbr perf Dharmik Thakkar
2020-11-03 22:23       ` [dpdk-dev] [PATCH v4 2/4] test/lpm: return error on failure " Dharmik Thakkar
2020-11-03 22:23       ` [dpdk-dev] [PATCH v4 3/4] test/lpm: remove error checking " Dharmik Thakkar
2020-11-03 22:23       ` [dpdk-dev] [PATCH v4 4/4] test/lpm: avoid code duplication " Dharmik Thakkar
2020-11-03 22:35         ` Honnappa Nagarahalli
2020-11-04 15:46         ` Medvedkin, Vladimir
2020-11-04 16:49           ` Dharmik Thakkar
2020-11-04 18:58       ` [dpdk-dev] [PATCH v5 0/4] test/lpm: fix rcu qsbr perf test Dharmik Thakkar
2020-11-04 18:58         ` [dpdk-dev] [PATCH v5 1/4] test/lpm: fix cycle calculation in rcu qsbr perf Dharmik Thakkar
2020-11-04 19:34           ` Medvedkin, Vladimir
2020-11-04 18:58         ` [dpdk-dev] [PATCH v5 2/4] test/lpm: return error on failure " Dharmik Thakkar
2020-11-04 19:35           ` Medvedkin, Vladimir
2020-11-04 18:58         ` [dpdk-dev] [PATCH v5 3/4] test/lpm: remove error checking " Dharmik Thakkar
2020-11-04 19:35           ` Medvedkin, Vladimir
2020-11-04 18:58         ` [dpdk-dev] [PATCH v5 4/4] test/lpm: avoid code duplication " Dharmik Thakkar
2020-11-04 19:35           ` Medvedkin, Vladimir
2020-11-05 15:58         ` [dpdk-dev] [PATCH v5 0/4] test/lpm: fix rcu qsbr perf test David Marchand

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