linux-kernel - Re: [PATCH] Performance Improvement in CRC16 Calculations.

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Message-ID: <yq15zzz917e.fsf@oracle.com>
Date:   Fri, 24 Aug 2018 12:30:29 -0400
From:   "Martin K. Petersen" <martin.petersen@...cle.com>
To:     Jeffrey Lien <Jeff.Lien@....com>
Cc:     Christoph Hellwig <hch@...radead.org>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        "linux-kernel\@vger.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-crypto\@vger.kernel.org" <linux-crypto@...r.kernel.org>,
        "linux-block\@vger.kernel.org" <linux-block@...r.kernel.org>,
        "linux-scsi\@vger.kernel.org" <linux-scsi@...r.kernel.org>,
        "herbert\@gondor.apana.org.au" <herbert@...dor.apana.org.au>,
        "tim.c.chen\@linux.intel.com" <tim.c.chen@...ux.intel.com>,
        David Darrington <david.darrington@....com>,
        Jeff Furlong <jeff.furlong@....com>
Subject: Re: [PATCH] Performance Improvement in CRC16 Calculations.


Jeffrey,

> So it seems the CONFIG_CRYPTO_CRCT10DIF_PCLMUL=y provides the best
> performance.

Thanks for confirming!

> Are there any negative side effect to this config option?

Other than kernel image size, not really.

-- 
Martin K. Petersen	Oracle Linux Engineering