doc/html/ref/services-profile-gprof.html

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  82 ><H1
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  84 >XX. Application profiling</H1
  85 ><DIV
  86 CLASS="PARTINTRO"
  87 ><A
  88 NAME="AEN15538"><P
  89 >The profile_gprof package provides a mechanism to measure the
  90 runtime performance of an application.  This is done by gathering
  91 an execution histogram.</P
  92 ><P
  93 >When profiling is started on the target device, a
  94 <TT
  95 CLASS="FUNCTION"
  96 >TFTP</TT
  97 >
  98 server will be started
  99 which exports the single file
 100 <TT
 101 CLASS="FILENAME"
 102 >PROFILE.DAT</TT
 103 >
 104 This analysis data can then be fetched
 105 by connecting to the target with a <TT
 106 CLASS="FUNCTION"
 107 >TFTP</TT
 108 >
 109 client program
 110 and then be processed by the
 111 <TT
 112 CLASS="FUNCTION"
 113 >gprof</TT
 114 >
 115 utility program.
 116 <DIV
 117 CLASS="NOTE"
 118 ><BLOCKQUOTE
 119 CLASS="NOTE"
 120 ><P
 121 ><B
 122 >NOTE: </B
 123 >Be sure and specify binary mode transfers for this data file,
 124 which may not be the default with on some <TT
 125 CLASS="FUNCTION"
 126 >TFTP</TT
 127 >
 128 client programs.</P
 129 ></BLOCKQUOTE
 130 ></DIV
 131 >
 132 <DIV
 133 CLASS="NOTE"
 134 ><BLOCKQUOTE
 135 CLASS="NOTE"
 136 ><P
 137 ><B
 138 >NOTE: </B
 139 >The port used for this <TT
 140 CLASS="FUNCTION"
 141 >TFTP</TT
 142 > server is
 143 configurable.  The default will be the IETF standard port
 144 of 69/UDP, but it may be changed to any UDP port via the
 145 <TT
 146 CLASS="LITERAL"
 147 >CYGNUM_PROFILE_TFTP_PORT</TT
 148 > CDL option.</P
 149 ></BLOCKQUOTE
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 161 >52. <A
 162 HREF="profile-functions.html"
 163 >Profiling functions</A
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