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update for highload documentation

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z3APA3A 2017-10-06 21:17:15 +03:00
parent e588dce959
commit 29b834cf56
1 changed files with 6 additions and 2 deletions
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doc/html/highload.html
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@ -189,8 +189,8 @@ you can eliminate Nagle's algorithm delay with TCP_NODELAY flag. Usage example:
proxy -osTCP_NODELAY -ocTCP_NODELAY
</pre>
sets TCP_NODELAY for client (oc) and server (os) connections.
<pre>
</pre>
<p>Do not use TCP_NODELAY on slow connections, if connection bandwidth is
bottleneck, or because it may be more bandwidth-consuming.
<h4>Use slice to speedup large data amount transfers</h4>
slice() allows to copy data between connections without copying to process
addres space. It can speedup proxy on high bandwidth connections, if most
@ -203,3 +203,7 @@ devel version. Do not use it in production without testing. Slice requires
more system buffers, but reduces process memory usage.
Do not use slice if there is a lot of short-living connections with no bandwidth
requirements.
<p>Use slice only on high-speed connections (e.g. 10GBE), where processor or
bus are bottlenecks.
<p>TCP_NODELAY and slice are not contrary to each over and can be combined on
high-speed connections.