doc/guide/localhost/RunningOnNetBSD

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  22 <a href="./Home">MLton 20180207</a>
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  26 <h1>RunningOnNetBSD</h1>
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  28 <div id="content">
  29 <div id="preamble">
  30 <div class="sectionbody">
  31 <div class="paragraph"><p>MLton runs fine on <a href="http://www.netbsd.org/">NetBSD</a>.</p></div>
  32 </div>
  33 </div>
  34 <div class="sect1">
  35 <h2 id="_installing_the_correct_packages_for_netbsd">Installing the correct packages for NetBSD</h2>
  36 <div class="sectionbody">
  37 <div class="paragraph"><p>The NetBSD system installs 3rd party packages by a mechanism known as
  38 pkgsrc. This is a tree of Makefiles which when invoked downloads the
  39 source code, builds a package and installs it on the system. In order
  40 to run MLton on NetBSD, you will have to install several packages for
  41 it to work:</p></div>
  42 <div class="ulist"><ul>
  43 <li>
  44 <p>
  45 <span class="monospaced">shells/bash</span>
  46 </p>
  47 </li>
  48 <li>
  49 <p>
  50 <span class="monospaced">devel/gmp</span>
  51 </p>
  52 </li>
  53 <li>
  54 <p>
  55 <span class="monospaced">devel/gmake</span>
  56 </p>
  57 </li>
  58 </ul></div>
  59 <div class="paragraph"><p>In order to get graphical call-graphs of profiling information, you
  60 will need the additional package</p></div>
  61 <div class="ulist"><ul>
  62 <li>
  63 <p>
  64 <span class="monospaced">graphics/graphviz</span>
  65 </p>
  66 </li>
  67 </ul></div>
  68 <div class="paragraph"><p>To build the documentation for MLton, you will need the addtional
  69 package</p></div>
  70 <div class="ulist"><ul>
  71 <li>
  72 <p>
  73 <span class="monospaced">textproc/asciidoc</span>.
  74 </p>
  75 </li>
  76 </ul></div>
  77 </div>
  78 </div>
  79 <div class="sect1">
  80 <h2 id="_tips_for_compiling_and_using_mlton_on_netbsd">Tips for compiling and using MLton on NetBSD</h2>
  81 <div class="sectionbody">
  82 <div class="paragraph"><p>MLton can be a memory-hog on computers with little memory.  While
  83 640Mb of RAM ought to be enough to self-compile MLton one might want
  84 to do some tuning to the NetBSD VM subsystem in order to succeed.  The
  85 notes presented here is what <a href="JesperLouisAndersen">JesperLouisAndersen</a> uses for
  86 compiling MLton on his laptop.</p></div>
  87 <div class="sect2">
  88 <h3 id="_the_netbsd_vm_subsystem">The NetBSD VM subsystem</h3>
  89 <div class="paragraph"><p>NetBSD uses a VM subsystem named
  90 <a href="http://www.ccrc.wustl.edu/pub/chuck/tech/uvm/">UVM</a>.
  91 <a href="http://www.selonen.org/arto/netbsd/vm_tune.html">Tuning the VM system</a>
  92 can be done via the <span class="monospaced">sysctl(8)</span>-interface with the "VM" MIB set.</p></div>
  93 </div>
  94 <div class="sect2">
  95 <h3 id="_tuning_the_netbsd_vm_subsystem_for_mlton">Tuning the NetBSD VM subsystem for MLton</h3>
  96 <div class="paragraph"><p>MLton uses a lot of anonymous pages when it is running. Thus, we will
  97 need to tune up the default of 80 for anonymous pages.  Setting</p></div>
  98 <div class="listingblock">
  99 <div class="content monospaced">
 100 <pre>sysctl -w vm.anonmax=95
 101 sysctl -w vm.anonmin=50
 102 sysctl -w vm.filemin=2
 103 sysctl -w vm.execmin=2
 104 sysctl -w vm.filemax=4
 105 sysctl -w vm.execmax=4</pre>
 106 </div></div>
 107 <div class="paragraph"><p>makes it less likely for the VM system to swap out anonymous pages.
 108 For a full explanation of the above flags, see the documentation.</p></div>
 109 <div class="paragraph"><p>The result is that my laptop goes from a MLton compile where it swaps
 110 a lot to a MLton compile with no swapping.</p></div>
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