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From: Thomas Monjalon <thomas@monjalon.net>
To: mb@smartsharesystems.com, Olivier Matz <olivier.matz@6wind.com>
Cc: dev@dpdk.org, andrew.rybchenko@oktetlabs.ru,
	bruce.richardson@intel.com, jerinjacobk@gmail.com
Subject: Re: [PATCH v2] mempool: test performance with constant n
Date: Wed, 02 Feb 2022 23:39:56 +0100	[thread overview]
Message-ID: <2136525.ZfL8zNpBrT@thomas> (raw)
In-Reply-To: <20220124145953.14281-1-olivier.matz@6wind.com>

24/01/2022 15:59, Olivier Matz:
> From: Morten Brørup <mb@smartsharesystems.com>
> 
> "What gets measured gets done."
> 
> This patch adds mempool performance tests where the number of objects to
> put and get is constant at compile time, which may significantly improve
> the performance of these functions. [*]
> 
> Also, it is ensured that the array holding the object used for testing
> is cache line aligned, for maximum performance.
> 
> And finally, the following entries are added to the list of tests:
> - Number of kept objects: 512
> - Number of objects to get and to put: The number of pointers fitting
>   into a cache line, i.e. 8 or 16
> 
> [*] Some example performance test (with cache) results:
> 
> get_bulk=4 put_bulk=4 keep=128 constant_n=false rate_persec=280480972
> get_bulk=4 put_bulk=4 keep=128 constant_n=true  rate_persec=622159462
> 
> get_bulk=8 put_bulk=8 keep=128 constant_n=false rate_persec=477967155
> get_bulk=8 put_bulk=8 keep=128 constant_n=true  rate_persec=917582643
> 
> get_bulk=32 put_bulk=32 keep=32 constant_n=false rate_persec=871248691
> get_bulk=32 put_bulk=32 keep=32 constant_n=true rate_persec=1134021836
> 
> Signed-off-by: Morten Brørup <mb@smartsharesystems.com>
> Signed-off-by: Olivier Matz <olivier.matz@6wind.com>

Applied, thanks.




      parent reply	other threads:[~2022-02-02 22:40 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-19 11:37 [PATCH] " Morten Brørup
2022-01-24 10:26 ` Olivier Matz
2022-01-24 10:37   ` Morten Brørup
2022-01-24 14:53 ` Olivier Matz
2022-01-24 14:57   ` Olivier Matz
2022-01-24 14:59 ` [PATCH v2] " Olivier Matz
2022-01-24 17:20   ` Morten Brørup
2022-01-25 12:56     ` Olivier Matz
2022-02-02 22:39   ` Thomas Monjalon [this message]

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