[Bug gdb/11316] response time of output command slows down from gdb 7.0.1 to gdb 7.0.50

["asmwarrior at gmail dot com" <sourceware-bugzilla at sourceware dot org>]

------- Additional Comments From asmwarrior at gmail dot com  2010-05-22 01:50 -------
(In reply to comment #3)
> At first I thought this might be related to
> http://sourceware.org/bugzilla/show_bug.cgi?id=11408 but after looking at the
> profile results I don't think so any more. Just in case you might want to try
> with the version from HEAD. If you are up for it a git bisect will definitely do
> the trick here.
> 
> Here is the top of the profiling file if anyone else is interested:
> 
> Flat profile:
> 
> 
> 
> Each sample counts as 0.01 seconds.
> 
>   %   cumulative   self              self     total           
> 
>  time   seconds   seconds    calls  ms/call  ms/call  name    
> 
>  16.97      4.13     4.13 57181341     0.00     0.00  lookup_partial_symbol
> 
>  13.50      7.42     3.29 15026121     0.00     0.00  strcmp_iw_ordered
> 
>   8.26      9.43     2.01                             lookup_symbol_aux_psymtabs
> 
>   2.75     10.10     0.67   712900     0.00     0.00  cpname_parse
> 
>   2.73     10.76     0.67  1040866     0.00     0.00  htab_hash_string
> 
>   2.63     11.40     0.64                             read_attribute_value
> 
>   2.59     12.03     0.63  1233264     0.00     0.00  filename_cmp
> 
>   2.55     12.65     0.62                             read_partial_die
> 
>   2.07     13.15     0.51 20271728     0.00     0.00  symbol_natural_name
> 
>   1.83     13.60     0.45  4080821     0.00     0.00  strcmp_iw
> 
>   1.64     14.00     0.40                             load_partial_dies
> 
>   1.40     14.34     0.34                             cpname_lex
> 
>   1.27     14.65     0.31   459082     0.00     0.00  msymbol_hash_iw
> 
>   1.25     14.96     0.30                             d_append_char
> 
>   1.19     15.24     0.29   409048     0.00     0.00  hash
> 
>   1.11     15.52     0.27  2552245     0.00     0.00  htab_find_slot_with_hash
> 
>   1.11     15.79     0.27                             read_attribute
> 
>   1.07     16.05     0.26                             d_append_buffer
> 
>   1.03     16.30     0.25  1117849     0.00     0.00  bfd_map_over_sections
> 
>   1.03     16.55     0.25                             cp_already_canonical
> 
>   0.94     16.77     0.23 20271726     0.00     0.00  symbol_search_name
> 
>   0.90     17.00     0.22                             htab_mod_1
> 
>   0.88     17.21     0.21                             d_print_comp
> 
>   0.86     17.42     0.21  5980533     0.00     0.00  bfd_getl32
> 
>   0.86     17.63     0.21                             dwarf2_lookup_abbrev
> 
>   0.86     17.84     0.21                             isspace
> 
>   0.84     18.05     0.20                             qsort_fde_cmp


Hi, Thanks for the help.

Today, I downloaded a latest CVS snapshot gdb source code from:
ftp://sourceware.org/pub/gdb/snapshots/current/gdb-7.1.50.20100521.tar.bz2
I just built it under MinGW 4.4.4 and MSYS and link to expat static library.

Then, I test the new generated gdb.exe. Luckily, I found that the response time
to show the wxString value becomes quicker. 

It seems the bug in MinGW gdb 7.0.50 has been fixed. But I'm not sure which
commit has indeed fix the bug.

I will do more test on the new build gdb.exe -7.1.50.20100521

Thanks

asmwarrior (ollydbg from codeblocks' forum)




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http://sourceware.org/bugzilla/show_bug.cgi?id=11316

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