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List: boost-users
Subject: Re: [Boost-users] what is the problem with my async_read_some function?
From: Martin Dyring-Andersen <mda () spamfighter ! com>
Date: 2015-10-20 18:25:57
Message-ID: FBD890227969A44597F7DD0165A364FE040FF550 () MAILD02 ! wks ! spamfighter ! com
[Download RAW message or body]
Hello,
You should certainly be able to use asio for this, depending on the platform and how \
much processing you need to do apart from the FIX decode, you should see figures in \
the 10s-100 microsecond range.
Ideas:
1) From what you describe it sounds like the sender can't deliver the market \
data fast enough, causing it to queue up on their side. It might be that your receive \
path is not fast enough. Maybe you are doing some extra work beyond what you showed \
below, and that is causing the TCP receive buffer to fill up on your side and \
consequentially the sender to slow down? (TCP window will fill).. Try timing how long \
you spend from you enter the async callback until you issue the new \
async_read_some... You should try to get that figure down.
2) It might be a good idea to increase TCP receive buffers in case market data \
is bursty (boost::asio::socket_base::receive_buffer_size)
3) Only affects your sending, but make sure you disable Nagles algorithm \
(boost::asio::ip::tcp::no_delay option) as well.
BR,
Martin
From: Boost-users [mailto:boost-users-bounces@lists.boost.org] On Behalf Of ??
Sent: 20. oktober 2015 16:27
To: boost-users <boost-users@lists.boost.org>; Boost Users \
<boostusers@googlegroups.com>
Subject: [Boost-users] what is the problem with my async_read_some function?
hi all!
i have a problem with the async_read_some function.
i code a client to connect a server, after login the server will send a lot of \
FAST(FIX Adapted for Streaming) Data constantly. i just use \
ip::tcp::socket<file:///D:\package\boost_1_58_0\doc\html\boost_asio\reference\ip__tcp\socket.html>.async_read_some \
function to read the data from server, but the interface of the server software \
sometime show that there are some data package wait for send(maybe my client not \
receive then immidiately).but, when i use a commercial client to connect and receive \
data from the server, there is no data package wait for send on the server.
my code:
BODY_LEN = 1024 * 1024 * 4 \
//4M boost::array<char, BODY_LEN> body_;
void client::login_handler(const boost::system::error_code& ec, std::size_t \
bytes_transferred) {
if (ec)
{
error_.code = ec.value();
strncpy(error_.msg, ec.message().c_str(), \
ERROR_MSG_LEN - 1);
error_.msg[ERROR_MSG_LEN - 1] = '/0';
glog.error("login_handler get an error: \
%s", error_.msg); return;
}
socket_.async_read_some(boost::asio::buffer(body_),
boost::bind(&client::login_handler, this, \
boost::asio::placeholders::error,
\
boost::asio::placeholders::bytes_transferred));
static bool first = true;
if (first)
{
heartbeat_inteval_ = 10;
first = false;
send_heartbeat();
}
}
there is a deadline_timer to send heartbeat to server every 10 seconds , user the \
same socket_ .
i user asio handler tracking to debug, and found that sometimes between the \
async_read_some function call and their callback function call are more than 100ms, i \
don't kown why becasue the server send data always, and other commercial client is \
ok?
@asio|1445319300.343750|25*26|socket@00840104.async_receive
@asio|1445319300.343750|<25|
@asio|1445319300.390625|>26|ec=system:0,bytes_transferred=24605
@asio|1445319300.390625|26*27|socket@00840104.async_receive
@asio|1445319300.390625|<26|
@asio|1445319300.578125|>27|ec=system:0,bytes_transferred=15805
@asio|1445319300.593750|27*28|socket@00840104.async_receive
@asio|1445319300.593750|<27|
@asio|1445319300.781250|>28|ec=system:0,bytes_transferred=3939
@asio|1445319300.781250|28*29|socket@00840104.async_receive
@asio|1445319300.781250|<28|
@asio|1445319300.781250|>29|ec=system:0,bytes_transferred=8858
@asio|1445319300.796875|29*30|socket@00840104.async_receive
@asio|1445319300.796875|<29|
@asio|1445319300.796875|>30|ec=system:0,bytes_transferred=23906
@asio|1445319300.796875|30*31|socket@00840104.async_receive
@asio|1445319300.796875|<30|
@asio|1445319300.796875|>31|ec=system:0,bytes_transferred=25124
@asio|1445319300.796875|31*32|socket@00840104.async_receive
@asio|1445319300.796875|<31|
@asio|1445319300.921875|>32|ec=system:0,bytes_transferred=18061
@asio|1445319300.937500|32*33|socket@00840104.async_receive
@asio|1445319300.937500|<32|
@asio|1445319301.125000|>33|ec=system:0,bytes_transferred=19960
@asio|1445319301.125000|33*34|socket@00840104.async_receive
@asio|1445319301.140625|<33|
@asio|1445319301.140625|>34|ec=system:0,bytes_transferred=11680
could someone give some suggest? thanks a lot!
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<p class="MsoNormal"><span lang="EN-US" \
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Hello,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" \
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" \
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">You \
should certainly be able to use asio for this, depending on the platform and how much \
processing you need to do apart from the FIX decode, you should see figures in the \
10s-100 microsecond range.<o:p></o:p></span></p> <p class="MsoNormal"><span \
lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" \
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Ideas:
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" \
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 \
lfo1"><![if !supportLists]><span lang="EN-US" \
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><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:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">From \
what you describe it sounds like the sender can’t deliver the market data fast \
enough, causing it to queue up on their side. It might be that your receive path is \
not fast enough. Maybe you are doing some extra work beyond what you showed below, \
and that is causing the TCP receive buffer to fill up on your side and \
consequentially the sender to slow down? (TCP window will fill).. Try timing how \
long you spend from you enter the async callback until you issue the new \
async_read_some… You should try to get that figure down.<o:p></o:p></span></p> \
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><![if \
!supportLists]><span lang="EN-US" \
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><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:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">It \
might be a good idea to increase TCP receive buffers in case market data is bursty \
(boost::asio::socket_base::receive_buffer_size)<o:p></o:p></span></p> <p \
class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><![if \
!supportLists]><span lang="EN-US" \
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><span \
style="mso-list:Ignore">3)<span style="font:7.0pt "Times New \
Roman""> </span></span></span><![endif]><span \
lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Only \
affects your sending, but make sure you disable Nagles algorithm \
(boost::asio::ip::tcp::no_delay option) as well.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" \
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" \
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">BR,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" \
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Martin<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" \
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span \
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US" \
style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span \
lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> \
Boost-users [mailto:boost-users-bounces@lists.boost.org] <b>On Behalf Of </b>??<br>
<b>Sent:</b> 20. oktober 2015 16:27<br>
<b>To:</b> boost-users <boost-users@lists.boost.org>; Boost Users \
<boostusers@googlegroups.com><br> <b>Subject:</b> [Boost-users] what is the \
problem with my async_read_some function?<o:p></o:p></span></p> <p \
class="MsoNormal"><o:p> </o:p></p> <div>
<div>
<p class="MsoNormal"><span \
style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black">hi \
all!<o:p></o:p></span></p> </div>
<div>
<p class="MsoNormal"><span \
style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black">i have \
a problem with the async_read_some function.<o:p></o:p></span></p> </div>
<div>
<p class="MsoNormal"><span \
style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span \
style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black">i code \
a client to connect a server, after login the server will send a lot of F</span><span \
style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#333333">AST(FIX
Adapted for Streaming) Data constantly. i just use </span><span \
style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black"><a \
href="file:///D:\package\boost_1_58_0\doc\html\boost_asio\reference\ip__tcp\socket.html" \
title="ip::tcp::socket"><span \
style="font-size:9.0pt;color:#9C5A9C;text-decoration:none">ip::tcp::socket</span></a>.async_read_some
function to read the data from server, but the interface of the server \
software sometime show that there are some data package \
wait for send(maybe my client not receive then immidiately).but, when i use \
a </span><span style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2">commercial
client to connect and receive data from the server, there is no data package wait \
for send on the server.</span><span \
style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span \
style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2">my \
code:</span><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span \
style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2">BODY_LEN \
= 1024 * 1024 * 4<span \
class="apple-tab-span"> &nb \
sp;   \
; & \
nbsp;
</span>//4M</span><span \
style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2">boost::array<char, \
BODY_LEN> body_;</span><span \
style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black"><o:p></o:p></span></p>
</div>
<div>
<div>
<p class="MsoNormal" style="line-height:18.0pt"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2">void \
client::login_handler(const boost::system::error_code& ec, std::size_t \
bytes_transferred)<o:p></o:p></span></p> </div>
<div>
<p class="MsoNormal" style="line-height:18.0pt"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2">{<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="line-height:18.0pt"><span class="apple-tab-span"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;backgro \
und:#F2F2F2">
</span></span><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2">if \
(ec)<o:p></o:p></span></p> </div>
<div>
<p class="MsoNormal" style="line-height:18.0pt"><span class="apple-tab-span"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;backgro \
und:#F2F2F2">
</span></span><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2">{<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="line-height:18.0pt"><span class="apple-tab-span"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;backgro \
und:#F2F2F2"> & \
nbsp; &nb \
sp;
</span></span><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2">error_.code \
= ec.value();<o:p></o:p></span></p> </div>
<div>
<p class="MsoNormal" style="line-height:18.0pt"><span class="apple-tab-span"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;backgro \
und:#F2F2F2"> & \
nbsp; &nb \
sp;
</span></span><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2">strncpy(error_.msg, \
ec.message().c_str(), ERROR_MSG_LEN - 1);<o:p></o:p></span></p> </div>
<div>
<p class="MsoNormal" style="line-height:18.0pt"><span class="apple-tab-span"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;backgro \
und:#F2F2F2"> & \
nbsp; &nb \
sp;
</span></span><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2">error_.msg[ERROR_MSG_LEN \
- 1] = '/0';<o:p></o:p></span></p> </div>
<div>
<p class="MsoNormal" style="line-height:18.0pt"><span class="apple-tab-span"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;backgro \
und:#F2F2F2"> & \
nbsp; &nb \
sp;
</span></span><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2">glog.error("login_handler \
get an error: %s", error_.msg);<o:p></o:p></span></p> </div>
<div>
<p class="MsoNormal" style="line-height:18.0pt"><span class="apple-tab-span"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;backgro \
und:#F2F2F2"> & \
nbsp; &nb \
sp;
</span></span><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2">return;<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="line-height:18.0pt"><span class="apple-tab-span"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;backgro \
und:#F2F2F2">
</span></span><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2">}<span \
class="apple-tab-span">
</span><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="line-height:18.0pt"><span class="apple-tab-span"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;backgro \
und:#F2F2F2">
</span></span><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="line-height:18.0pt"><span class="apple-tab-span"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;backgro \
und:#F2F2F2">
</span></span><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;backgro \
und:#F2F2F2">socket_.async_read_some(boost::asio::buffer(body_),<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="line-height:18.0pt"><span class="apple-tab-span"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;backgro \
und:#F2F2F2"> & \
nbsp; &nb \
sp;
</span></span><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2">boost::bind(&client::login_handler, \
this, boost::asio::placeholders::error,<o:p></o:p></span></p> </div>
<div>
<p class="MsoNormal" style="line-height:18.0pt"><span class="apple-tab-span"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;backgro \
und:#F2F2F2"> & \
nbsp; &nb \
sp;
</span></span><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;backgro \
und:#F2F2F2">boost::asio::placeholders::bytes_transferred));<o:p></o:p></span></p> \
</div> <div>
<p class="MsoNormal" style="line-height:18.0pt"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="line-height:18.0pt"><span class="apple-tab-span"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;backgro \
und:#F2F2F2">
</span></span><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2">static \
bool first = true;<o:p></o:p></span></p> </div>
<div>
<p class="MsoNormal" style="line-height:18.0pt"><span class="apple-tab-span"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;backgro \
und:#F2F2F2">
</span></span><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2">if \
(first)<o:p></o:p></span></p> </div>
<div>
<p class="MsoNormal" style="line-height:18.0pt"><span class="apple-tab-span"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;backgro \
und:#F2F2F2">
</span></span><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2">{<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="line-height:18.0pt"><span class="apple-tab-span"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;backgro \
und:#F2F2F2"> & \
nbsp; &nb \
sp;
</span></span><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2">heartbeat_inteval_ \
= 10;<o:p></o:p></span></p> </div>
<div>
<p class="MsoNormal" style="line-height:18.0pt"><span class="apple-tab-span"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;backgro \
und:#F2F2F2"> & \
nbsp; &nb \
sp;
</span></span><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2">first \
= false;<o:p></o:p></span></p> </div>
<div>
<p class="MsoNormal" style="line-height:18.0pt"><span class="apple-tab-span"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;backgro \
und:#F2F2F2"> & \
nbsp; &nb \
sp;
</span></span><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2">send_heartbeat();<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="line-height:18.0pt"><span class="apple-tab-span"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;backgro \
und:#F2F2F2">
</span></span><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2">}<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="line-height:18.0pt"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2">}<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="line-height:18.0pt"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="line-height:18.0pt"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2">there \
is a deadline_timer to send heartbeat to server every 10 seconds , user the same \
socket_ .<o:p></o:p></span></p> </div>
<div>
<p class="MsoNormal" style="line-height:18.0pt"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="line-height:18.0pt"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="line-height:18.0pt"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2">i \
user asio handler tracking to debug, and found that sometimes between the \
async_read_some function call and their callback function call are more than 100ms, \
i don't kown why becasue the server send data always, and other commercial client is \
ok?<o:p></o:p></span></p> </div>
<div>
<p class="MsoNormal" style="line-height:18.0pt"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2"><o:p> </o:p></span></p>
</div>
<div>
<div>
<p class="MsoNormal"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;backgro \
und:#F2F2F2">@asio|1445319300.343750|25*26|socket@00840104.async_receive</span><span \
style="font-size:10.5pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2">@asio|1445319300.343750|<25|</span><span \
style="font-size:10.5pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;backgro \
und:#F2F2F2">@asio|1445319300.390625|>26|ec=system:0,bytes_transferred=24605</span><span \
style="font-size:10.5pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;backgro \
und:#F2F2F2">@asio|1445319300.390625|26*27|socket@00840104.async_receive</span><span \
style="font-size:10.5pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2">@asio|1445319300.390625|<26|</span><span \
style="font-size:10.5pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;backgro \
und:#F2F2F2">@asio|1445319300.578125|>27|ec=system:0,bytes_transferred=15805</span><span \
style="font-size:10.5pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;backgro \
und:#F2F2F2">@asio|1445319300.593750|27*28|socket@00840104.async_receive</span><span \
style="font-size:10.5pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2">@asio|1445319300.593750|<27|</span><span \
style="font-size:10.5pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;backgro \
und:#F2F2F2">@asio|1445319300.781250|>28|ec=system:0,bytes_transferred=3939</span><span \
style="font-size:10.5pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;backgro \
und:#F2F2F2">@asio|1445319300.781250|28*29|socket@00840104.async_receive</span><span \
style="font-size:10.5pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2">@asio|1445319300.781250|<28|</span><span \
style="font-size:10.5pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;backgro \
und:#F2F2F2">@asio|1445319300.781250|>29|ec=system:0,bytes_transferred=8858</span><span \
style="font-size:10.5pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;backgro \
und:#F2F2F2">@asio|1445319300.796875|29*30|socket@00840104.async_receive</span><span \
style="font-size:10.5pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2">@asio|1445319300.796875|<29|</span><span \
style="font-size:10.5pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;backgro \
und:#F2F2F2">@asio|1445319300.796875|>30|ec=system:0,bytes_transferred=23906</span><span \
style="font-size:10.5pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;backgro \
und:#F2F2F2">@asio|1445319300.796875|30*31|socket@00840104.async_receive</span><span \
style="font-size:10.5pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2">@asio|1445319300.796875|<30|</span><span \
style="font-size:10.5pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;backgro \
und:#F2F2F2">@asio|1445319300.796875|>31|ec=system:0,bytes_transferred=25124</span><span \
style="font-size:10.5pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;backgro \
und:#F2F2F2">@asio|1445319300.796875|31*32|socket@00840104.async_receive</span><span \
style="font-size:10.5pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2">@asio|1445319300.796875|<31|</span><span \
style="font-size:10.5pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;backgro \
und:#F2F2F2">@asio|1445319300.921875|>32|ec=system:0,bytes_transferred=18061</span><span \
style="font-size:10.5pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;backgro \
und:#F2F2F2">@asio|1445319300.937500|32*33|socket@00840104.async_receive</span><span \
style="font-size:10.5pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2">@asio|1445319300.937500|<32|</span><span \
style="font-size:10.5pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;backgro \
und:#F2F2F2">@asio|1445319301.125000|>33|ec=system:0,bytes_transferred=19960</span><span \
style="font-size:10.5pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;backgro \
und:#F2F2F2">@asio|1445319301.125000|33*34|socket@00840104.async_receive</span><span \
style="font-size:10.5pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2">@asio|1445319301.140625|<33|</span><span \
style="font-size:10.5pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;backgro \
und:#F2F2F2">@asio|1445319301.140625|>34|ec=system:0,bytes_transferred=11680</span><span \
style="font-size:10.5pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2"><o:p></o:p></span></p>
</div>
</div>
<div>
<p class="MsoNormal" style="line-height:18.0pt"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="line-height:18.0pt"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="line-height:18.0pt"><span \
style="font-size:9.0pt;font-family:"Tahoma",sans-serif;color:#434343;background:#F2F2F2">could \
someone give some suggest? thanks a lot!<o:p></o:p></span></p> </div>
</div>
</div>
<p class="MsoNormal" style="margin-bottom:12.0pt"><o:p> </o:p></p>
<p> <o:p></o:p></p>
</div>
</body>
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