<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
        {font-family:宋体;
        panose-1:2 1 6 0 3 1 1 1 1 1;}
@font-face
        {font-family:"Cambria Math";
        panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
        {font-family:Calibri;
        panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
        {font-family:"\@宋体";
        panose-1:2 1 6 0 3 1 1 1 1 1;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
        {margin:0cm;
        margin-bottom:.0001pt;
        font-size:12.0pt;
        font-family:宋体;}
a:link, span.MsoHyperlink
        {mso-style-priority:99;
        color:blue;
        text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
        {mso-style-priority:99;
        color:purple;
        text-decoration:underline;}
p
        {mso-style-priority:99;
        margin:0cm;
        margin-bottom:.0001pt;
        font-size:12.0pt;
        font-family:宋体;}
p.MsoListParagraph, li.MsoListParagraph, div.MsoListParagraph
        {mso-style-priority:34;
        margin:0cm;
        margin-bottom:.0001pt;
        text-indent:21.0pt;
        font-size:12.0pt;
        font-family:宋体;}
p.msonormal0, li.msonormal0, div.msonormal0
        {mso-style-name:msonormal;
        mso-margin-top-alt:auto;
        margin-right:0cm;
        mso-margin-bottom-alt:auto;
        margin-left:0cm;
        font-size:12.0pt;
        font-family:宋体;}
span.EmailStyle18
        {mso-style-type:personal;
        font-family:"Calibri",sans-serif;
        color:windowtext;}
span.EmailStyle19
        {mso-style-type:personal-compose;
        font-family:"Calibri",sans-serif;
        color:windowtext;}
.MsoChpDefault
        {mso-style-type:export-only;
        font-size:10.0pt;}
@page WordSection1
        {size:612.0pt 792.0pt;
        margin:72.0pt 90.0pt 72.0pt 90.0pt;}
div.WordSection1
        {page:WordSection1;}
/* List Definitions */
@list l0
        {mso-list-id:173761897;
        mso-list-type:hybrid;
        mso-list-template-ids:1976571034 219578084 67698713 67698715 67698703 67698713 67698715 67698703 67698713 67698715;}
@list l0:level1
        {mso-level-text:"%1\)";
        mso-level-tab-stop:none;
        mso-level-number-position:left;
        margin-left:18.0pt;
        text-indent:-18.0pt;}
@list l0:level2
        {mso-level-number-format:alpha-lower;
        mso-level-text:"%2\)";
        mso-level-tab-stop:none;
        mso-level-number-position:left;
        margin-left:42.0pt;
        text-indent:-21.0pt;}
@list l0:level3
        {mso-level-number-format:roman-lower;
        mso-level-tab-stop:none;
        mso-level-number-position:right;
        margin-left:63.0pt;
        text-indent:-21.0pt;}
@list l0:level4
        {mso-level-tab-stop:none;
        mso-level-number-position:left;
        margin-left:84.0pt;
        text-indent:-21.0pt;}
@list l0:level5
        {mso-level-number-format:alpha-lower;
        mso-level-text:"%5\)";
        mso-level-tab-stop:none;
        mso-level-number-position:left;
        margin-left:105.0pt;
        text-indent:-21.0pt;}
@list l0:level6
        {mso-level-number-format:roman-lower;
        mso-level-tab-stop:none;
        mso-level-number-position:right;
        margin-left:126.0pt;
        text-indent:-21.0pt;}
@list l0:level7
        {mso-level-tab-stop:none;
        mso-level-number-position:left;
        margin-left:147.0pt;
        text-indent:-21.0pt;}
@list l0:level8
        {mso-level-number-format:alpha-lower;
        mso-level-text:"%8\)";
        mso-level-tab-stop:none;
        mso-level-number-position:left;
        margin-left:168.0pt;
        text-indent:-21.0pt;}
@list l0:level9
        {mso-level-number-format:roman-lower;
        mso-level-tab-stop:none;
        mso-level-number-position:right;
        margin-left:189.0pt;
        text-indent:-21.0pt;}
ol
        {margin-bottom:0cm;}
ul
        {margin-bottom:0cm;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="ZH-CN" link="blue" vlink="purple">
<div class="WordSection1">
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif">Hi guys,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif">I want to use "multiblock" introduced from 1.0.2 to improve performance of ipsec packet process, which use aes_cbc_hmac_sha as main algorithm.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif">I have try openssl speed test with  ‘-mb’ and I observe that the test code use big  buffer size from 8192 to 131072, that show dramatic performance improvement
  <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif">My questions are:<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:18.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1">
<![if !supportLists]><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif"><span style="mso-list:Ignore">1)<span style="font:7.0pt "Times New Roman"">      
</span></span></span><![endif]><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif">Can i get so much improvement  when use multiblock on single stream with small data ,like date with size 512 or 1024 bytes.
<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:18.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1">
<![if !supportLists]><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif"><span style="mso-list:Ignore">2)<span style="font:7.0pt "Times New Roman"">      
</span></span></span><![endif]><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif">How to use the multiblock APIs? From speed.c , I saw some APIs call like  EVP_CIPHER_CTX_ctrl() with type EVP_CTRL_TLS1_1_MULTIBLOCK_AAD and EVP_CTRL_TLS1_1_MULTIBLOCK_ENCRYPT,
 is there any document regarding these?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif">Many thanks in advance for any advice here!<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
<p style="background:white"><span lang="EN-US" style="font-family:"Calibri",sans-serif;color:black">Thanks,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif;color:black">kane<br>
Software developer, Ericsson<o:p></o:p></span></p>
</div>
</body>
</html>