Date: Wed, 17 Nov 2010 14:18:50 -0500 From: Mike Tancsa <mike@sentex.net> To: Kostik Belousov <kostikbel@gmail.com>, freebsd-stable@freebsd.org Subject: Re: Call for testers: FPU changes Message-ID: <4CE42A9A.5030001@sentex.net> In-Reply-To: <20101117163541.GR2392@deviant.kiev.zoral.com.ua> References: <20101115211350.GE2392@deviant.kiev.zoral.com.ua> <4CE1FDBA.9030403@sentex.net> <20101116094330.GH2392@deviant.kiev.zoral.com.ua> <4CE300DE.8010304@sentex.net> <20101116221926.GN2392@deviant.kiev.zoral.com.ua> <4CE333EF.10406@sentex.net> <20101117163541.GR2392@deviant.kiev.zoral.com.ua>
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On 11/17/2010 11:35 AM, Kostik Belousov wrote: > Meantime, the similar change may be beneficial for padlock(4) too. > f you are going to test it, please note that most likely, openssl padlock > engine does not use padlock(4), I do not know for sure. > > diff --git a/sys/crypto/via/padlock.c b/sys/crypto/via/padlock.c > index 77e059b..ba63093 100644 > --- a/sys/crypto/via/padlock.c > +++ b/sys/crypto/via/padlock.c Patch applied cleanly Full results at the bottom of http://www.tancsa.com/fpu.html On large blocks, version 1 vs the above patch show no significant difference. This is with openssl using the cryptodev engine. I also compared to the openssl padlock engine which gave interesting results! 0(via)# cat version1.txt | sed -e 's/k//g' | awk '{print $6}' > 1 0(via)# cat version2.txt | sed -e 's/k//g' | awk '{print $6}' > 2 0(via)# ministat 1 2 x 1 + 2 N Min Max Median Avg Stddev x 30 2591851.6 6645345.1 4326340.6 4227917.6 1083181.2 + 30 2574883.9 8830282.8 4033610.4 4241195.6 1519334.8 No difference proven at 95.0% confidence 0(via)# cat version1.txt | sed -e 's/k//g' | awk '{print $5}' > 1 0(via)# cat version2.txt | sed -e 's/k//g' | awk '{print $5}' > 2 0(via)# ministat 1 2 N Min Max Median Avg Stddev x 30 1124673.3 2320883.7 1527677.1 1550631.9 295165.4 + 30 1069788.2 2508865.7 1594506.2 1588193.2 389414.33 No difference proven at 95.0% confidence 0(via)#
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