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Arvid Norberg 2009-08-26 06:23:06 +00:00
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docs/tuning.html
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@ -59,16 +59,17 @@
<li><a class="reference internal" href="#high-performance-seeding" id="id11">high performance seeding</a><ul>
<li><a class="reference internal" href="#file-pool" id="id12">file pool</a></li>
<li><a class="reference internal" href="#disk-cache" id="id13">disk cache</a></li>
<li><a class="reference internal" href="#peers" id="id14">peers</a></li>
<li><a class="reference internal" href="#torrent-limits" id="id15">torrent limits</a></li>
<li><a class="reference internal" href="#send-buffer-low-watermark" id="id14">send buffer low watermark</a></li>
<li><a class="reference internal" href="#peers" id="id15">peers</a></li>
<li><a class="reference internal" href="#torrent-limits" id="id16">torrent limits</a></li>
</ul>
</li>
<li><a class="reference internal" href="#benchmarking" id="id16">benchmarking</a><ul>
<li><a class="reference internal" href="#disk-metrics" id="id17">disk metrics</a></li>
<li><a class="reference internal" href="#session-stats" id="id18">session stats</a></li>
<li><a class="reference internal" href="#benchmarking" id="id17">benchmarking</a><ul>
<li><a class="reference internal" href="#disk-metrics" id="id18">disk metrics</a></li>
<li><a class="reference internal" href="#session-stats" id="id19">session stats</a></li>
</ul>
</li>
<li><a class="reference internal" href="#contributions" id="id19">contributions</a></li>
<li><a class="reference internal" href="#contributions" id="id20">contributions</a></li>
</ul>
</div>
<div class="section" id="tuning-libtorrent">
@ -246,6 +247,18 @@ to true.</p>
<tt class="docutils literal"><span class="pre">session_settings::cache_expiry</span></tt> to a large number. This won't degrade anything as
long as the client is only seeding, and not downloading any torrents.</p>
</div>
<div class="section" id="send-buffer-low-watermark">
<h2>send buffer low watermark</h2>
<p>libtorrent uses a low watermark for send buffers to determine when a new piece should
be requested from the disk I/O subsystem, to be appended to the send buffer. The low
watermark is determined based on the send rate of the socket. It needs to be large
enough to not draining the socket's send buffer before the disk operation completes.</p>
<p>The watermark is bound to a max value, to avoid buffer sizes growing out of control.
The default max send buffer size might not be enough to sustain very high upload rates,
and you might have to increase it. It's specified in bytes in
<tt class="docutils literal"><span class="pre">session_settings::send_buffer_watermark</span></tt>. The <tt class="docutils literal"><span class="pre">high_performance_seed()</span></tt> preset
sets this value to 5 MB.</p>
</div>
<div class="section" id="peers">
<h2>peers</h2>
<p>First of all, in order to allow many connections, set the global connection limit