[dpdk-dev] [PATCH 3/4] test-crypto-perf: add new PMD benchmarking mode

De Lara Guarch, Pablo pablo.de.lara.guarch at intel.com
Mon Sep 4 16:26:28 CEST 2017



> -----Original Message-----
> From: Burakov, Anatoly
> Sent: Thursday, August 24, 2017 11:48 AM
> To: dev at dpdk.org
> Cc: De Lara Guarch, Pablo <pablo.de.lara.guarch at intel.com>; Doherty,
> Declan <declan.doherty at intel.com>; Burakov, Anatoly
> <anatoly.burakov at intel.com>
> Subject: [PATCH 3/4] test-crypto-perf: add new PMD benchmarking mode
> 
> This patch adds a new benchmarking mode, which is intended for
> microbenchmarking individual parts of the cryptodev framework,
> specifically crypto ops alloc-build-free, cryptodev PMD enqueue and
> cryptodev PMD dequeue.
> 
> It works by first benchmarking crypto operation alloc-build-free loop (no
> enqueues/dequeues happening), and then benchmarking enqueue and
> dequeue separately, by first completely filling up the TX queue, and then
> completely draining the RX queue.
> 
> Results are shown as cycle counts per alloc/build/free, PMD enqueue and
> PMD dequeue.
> 
> One new test mode is added: "pmd-cyclecount"
>   (called with --ptest=pmd-cyclecount)
> 
> New command-line argument is also added:
>   --pmd-cyclecount-delay-ms: this is a pmd-cyclecount-specific parameter
>       that controls the delay between enqueue and dequeue. This is
>       useful for benchmarking hardware acceleration, as hardware may
>       not be able to keep up with enqueued packets. This parameter
>       can be increased if there are large amounts of dequeue
>       retries.
> 
> Signed-off-by: Burakov, Anatoly <anatoly.burakov at intel.com>

...

> diff --git a/app/test-crypto-perf/cperf_options_parsing.c b/app/test-crypto-
> perf/cperf_options_parsing.c
> index f4097d9..42a920f 100644
> --- a/app/test-crypto-perf/cperf_options_parsing.c
> +++ b/app/test-crypto-perf/cperf_options_parsing.c

...

>  static int
> @@ -782,6 +804,7 @@ cperf_opts_parse_long(int opt_idx, struct
> cperf_options *opts)
>  		{ CPERF_AEAD_AAD_SZ,	parse_aead_aad_sz },
>  		{ CPERF_DIGEST_SZ,	parse_digest_sz },
>  		{ CPERF_CSV,		parse_csv_friendly},
> +		{ CPERF_PMD_CYCLECOUNT_DELAY_MS,
> parse_pmd_cyclecount_delay_ms},

Sorry, I missed this one in the previous email.
To have a consistent alignment, could you make the name of this macro shorter?

Thanks,
Pablo


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