Profile figures for /usr/bin/podbrowser suddenly running very slowly

[RCH]

Dear Perl Monks

On my main (Ubuntu 13.04) computer "Sheep", podbrowser has suddenly started running very slowly (takes an age to respond to key presses, screen greys out while its thinking).

I uninstalled and reinstalled. No improvement whatsoever.

So I did

    perl -d:NYTProf /usr/bin/podbrowser

on "Sheep", and on a second computer "Tiger" (also running Ubuntu 13.04)

Now I'm lost.

Here are the NYTProf figures for "Inclusive Time" Sheep milliseconds as a multiple of Tiger milliseconds.

        2177.33    Gtk2::Ex::PodViewer::load_function
        2089.11    Gtk2::init (xsub)
        1880.71    utf8::SWASHNEW (recurses: max depth 1, inclusive ti
+me 83┬╡s)
         945.89    Gtk2::IconTheme::has_icon (xsub)
         50.79    Gtk2::Ex::PodViewer::Parser::CORE:readline (opcode)
         39.58    Gtk2::Widget::show (xsub)
         17.30    Gtk2::main
         16.50    main::generate_index
         15.27    Gtk2::GladeXML::new (xsub)
          6.34    main::CORE:match (opcode)
          7.10    Gtk2::main_iteration (xsub)
          5.11    main::toggle_mod_tree
          3.75    main::search_input_changed
          0.71    Gtk2::TreeStore::append (xsub)
          0.41    Gtk2::TreeStore::set (xsub)

Any idea what may be the problem?

RichardH

[RMGir]

There's something garbled in your

1880.71    utf8::SWASHNEW (recurses: max depth 1, inclusive time 83┬╡s)

line.

What does the inclusive time look like? Maybe something's broken in the utf8 handling?

[RCH]

Ohhhh my most grovelling apologies.
The numbers in my original posting are hopelessly and horribly wrong
The correct numbers are in the table below
And my question becomes:-

• How to investigate reason why computer "Sheep" spent so much time in podbrowser subroutine main::search_input_changed (Part A. of the table below)

(Parts B. and C. of the table below, show that there were differences between the two computers in the lists of subroutines in nytrpof/index.html
Could this be because I failed to give podbrowser the same task in the two computers?)

Result of running perl -d:NYTProf /usr/bin/podbrowser on 2 computers "Sheep" and "Tiger"
Data are "Inclusive Time" (ms); from the tables nytrpof/index.html

A.	Subroutine	Tiger	Sheep	(Sheep /
.				/ Tiger)
Gtk2::	main	14,300	74,100	5.2
main::	search_input_changed	49.9	47,200	945.9
main::	toggle_mod_tree	39.6	685.0	17.3
Gtk2::	main_iteration (xsub)	39.4	393.0	10.0
Gtk2::TreeStore::	append (xsub)	9.9	236.0	23.8
Gtk2::TreeStore::	set (xsub)	14.3	223.0	15.6
Gtk2::GladeXML::	new (xsub)	36.0	184.0	5.1
main::	generate_index	24.8	176.0	7.1
Gtk2::Ex::PodViewer::	load_function	34.1	128.0	3.8
main::	CORE:match (opcode)	19.4	123.0	6.3
utf8::	SWASHNEW (recurses:...	163.0	115.0	0.7
.	...max depth 1, inclusive time .. mu s)
.
B.Inclusive times from Sheep's nytrpof/index.html (Not found in Tiger)
.	Subroutine	...	Sheep	...
Gtk2::Ex::Simple::TiedList::	PUSH	…	25,700	…
Gtk2::ListStore::	clear (xsub)	…	21,100	…
Gtk2::ListStore::	append (xsub)	…	19,400	…
Gtk2::ListStore::	set (xsub)	…	5,920	…
.
C.Inclusive times from Tiger's nytrpof/index.html;(not found in Sheep)
.	Subroutine	Tiger	...	...
Gtk2::Ex::PodViewer::Parser::	CORE:readline (opcode)	506.0	…	…
Gtk2::Widget::	show (xsub)	14.6	…	…
Gtk2::	init (xsub)	10.1	…	…
Gtk2::IconTheme::	has_icon (xsub)	8.9	…	…