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  77 >2.2. Installing LTT kernel tracer</A
  78 ></H1
  79 ><P
  80 >&#13;The goal of this guide is not to describe the Linux Trace Toolkit project in
  81 details, as it is a
  82 seperate project for now. It just gives pointers to the basic steps you must
  83 take in order to generate a trace suitable for conversion.
  84 </P
  85 ><P
  86 >&#13;First, go to the <A
  87 HREF="http://ltt.polymtl.ca"
  88 TARGET="_top"
  89 >ltt.polymtl.ca</A
  90 >
  91 website, in the "Patches for the Official LTT" section. Use the latest version
  92 of patches available. The file name convention used goes like this :
  93 aaaaaa-x.x--bbbbb-y.y.patch. That means a patch made for aaaaa, release x.x,
  94 that adds bbbbb, release y.y to it. Notice the presence of the -- sign that
  95 separates the "from" field from the name of the patch applied. This way, it's
  96 impossible to be mixed up on the specific sequence of patch application. I
  97 suggest that you use the "relayfs", "ltt" and then "md" patches. The "md" patch
  98 adds events useful to LTTV that are not in the official LTT.
  99 </P
 100 ><P
 101 >&#13;Once you have the patches you need, get the matching Linux kernel version, apply
 102 the patches on it, configure it, install it, reboot with the new kernel. You then
 103 have an instrumented kernel ready for tracing. If you have problems during this phase,
 104 please refer to <A
 105 HREF="http://www.opersys.com/ltt"
 106 TARGET="_top"
 107 >www.opersys.com/ltt</A
 108 >. If you need
 109 instructions about how to recompile a kernel, see
 110 <A
 111 HREF="http://www.tldp.org/HOWTO/Kernel-HOWTO/"
 112 TARGET="_top"
 113 >Kernel-HOWTO</A
 114 >.
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