From: Nick Savoiu <savoiu@ics.uci.edu>
To: gdb@sources.redhat.com
Subject: Re: Improving GDB startup time with large programs
Date: Mon, 03 May 2004 17:17:00 -0000 [thread overview]
Message-ID: <200405031016.39973.savoiu@ics.uci.edu> (raw)
In-Reply-To: <200405021948.50571.savoiu@ics.uci.edu>
For comparison here are the GDB 6.0 results:
Flat profile:
Each sample counts as 0.01 seconds.
% cumulative self self total
time seconds seconds calls s/call s/call name
32.24 2.36 2.36 2013564 0.00 0.00 hash
16.12 3.54 1.18 2300832 0.00 0.00 htab_hash_string
6.42 4.01 0.47 3975016 0.00 0.00 read_partial_die
5.46 4.41 0.40 1906174 0.00 0.00 bcache
3.21 4.64 0.23 2024256 0.00 0.00 htab_find_slot_with_hash
2.60 4.83 0.19 591490 0.00 0.00 dyn_string_substring
2.32 5.00 0.17 436495 0.00 0.00 strcmp_iw_ordered
1.98 5.15 0.14 11899013 0.00 0.00 read_attribute_value
1.78 5.28 0.13 118643 0.00 0.00 msymbol_hash
1.57 5.39 0.12 6972300 0.00 0.00 read_unsigned_leb128
1.50 5.50 0.11 4412114 0.00 0.00 dwarf2_lookup_abbrev
1.50 5.62 0.11 2128935 0.00 0.00 read_indirect_string
1.30 5.71 0.10 1906174 0.00 0.00 add_psymbol_to_list
1.23 5.80 0.09 74808 0.00 0.00 msymbol_hash_iw
1.16 5.88 0.09 6507274 0.00 0.00 dyn_string_resize
1.09 5.96 0.08 11899013 0.00 0.00 read_attribute
1.02 6.04 0.07 1699 0.00 0.00 scan_partial_symbols
Nick
On Sunday 02 May 2004 07:48 pm, Nick Savoiu wrote:
> >> How do I profile gdb?
> >
> >When you build gdb, configure as normal.
> >Then use this command to build:
>
> Here's what I got (the most significant stuff) with g++ 3.2. Seems that the
> number of symbols is the culprit.
>
> Nick
>
> --------------------------------
>
> Flat profile:
>
> Each sample counts as 0.01 seconds.
> % cumulative self self total
> time seconds seconds calls s/call s/call name
> 18.61 1.93 1.93 2013562 0.00 0.00 hash
> 13.55 3.33 1.41 9757458 0.00 0.00 strcmp_iw_ordered
> 11.86 4.57 1.23 2310964 0.00 0.00 htab_hash_string
> 9.55 5.55 0.99 6206314 0.00 0.00 read_partial_die
> 4.97 6.07 0.52 1906172 0.00 0.00 bcache_data
> 3.38 6.42 0.35 5101168 0.00 0.00 read_indirect_string
> 3.33 6.76 0.34 23770551 0.00 0.00 read_attribute_value
> 3.18 7.09 0.33 948693 0.00 0.00 d_print_comp
> 2.60 7.37 0.27 2032858 0.00 0.00
> htab_find_slot_with_hash 1.59 7.53 0.17 9203512 0.00 0.00
> read_unsigned_leb128 1.54 7.69 0.16 23770551 0.00 0.00
> read_attribute 1.25 7.82 0.13 256652 0.00 0.00
> find_last_component 1.25 7.95 0.13 131142 0.00 0.00
> msymbol_hash_iw 1.16 8.07 0.12 6643402 0.00 0.00
> dwarf2_lookup_abbrev 1.16 8.19 0.12 3934670 0.00 0.00
> d_make_comp
> 1.06 8.30 0.11 1906172 0.00 0.00 add_psymbol_to_list
> 0.96 8.40 0.10 89224 0.00 0.00
> cp_find_first_component_aux 0.87 8.49 0.09 19615690 0.00
> 0.00 symbol_natural_name 0.87 8.58 0.09 12864595 0.00
> 0.00 bfd_getl32
> 0.87 8.67 0.09 1699 0.00 0.00 scan_partial_symbols
> 0.77 8.75 0.08 2032858 0.00 0.00 symbol_set_names
> 0.68 8.82 0.07 11166899 0.00 0.00 read_1_byte
next prev parent reply other threads:[~2004-05-03 17:17 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-05-02 22:49 Michael Elizabeth Chastain
2004-05-02 23:11 ` Nick Savoiu
2004-05-03 2:49 ` Nick Savoiu
2004-05-03 17:17 ` Nick Savoiu [this message]
2004-05-04 19:44 ` Daniel Jacobowitz
-- strict thread matches above, loose matches on Subject: below --
2004-05-03 3:39 Michael Elizabeth Chastain
2004-05-03 1:56 Michael Elizabeth Chastain
2004-05-03 15:00 ` Andrew Cagney
2004-05-02 22:12 Nick Savoiu
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