Tim Bunce > DBI > dbilogstrip

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NAME ^

dbilogstrip - filter to normalize DBI trace logs for diff'ing

SYNOPSIS ^

Read DBI trace file dbitrace.log and write out a stripped version to dbitrace_stripped.log

  dbilogstrip dbitrace.log > dbitrace_stripped.log

Run yourscript.pl twice, each with different sets of arguments, with DBI_TRACE enabled. Filter the output and trace through dbilogstrip into a separate file for each run. Then compare using diff. (This example assumes you're using a standard shell.)

  DBI_TRACE=2 perl yourscript.pl ...args1... 2>&1 | dbilogstrip > dbitrace1.log
  DBI_TRACE=2 perl yourscript.pl ...args2... 2>&1 | dbilogstrip > dbitrace2.log
  diff -u dbitrace1.log dbitrace2.log

DESCRIPTION ^

Replaces any hex addresses, e.g, 0x128f72ce with 0xN.

Replaces any references to process id or thread id, like pid#6254 with pidN.

So a DBI trace line like this:

  -> STORE for DBD::DBM::st (DBI::st=HASH(0x19162a0)~0x191f9c8 'f_params' ARRAY(0x1922018)) thr#1800400

will look like this:

  -> STORE for DBD::DBM::st (DBI::st=HASH(0xN)~0xN 'f_params' ARRAY(0xN)) thrN
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