Message-Id:	<200305121929.h4CJTEN08938@delorie.com>
Subject:	=?iso-8859-1?Q?gprof_with_all_zero_execution_times_in_version_2=2E03?=
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From:	"=?iso-8859-1?Q?alrc AT task=2Ecom=2Ebr?=" <alrc AT task DOT com DOT br>
Date:	Mon, 12 May 2003 16:29:05 -0300
To:	"=?iso-8859-1?Q?djgpp AT delorie=2Ecom?=" <djgpp AT delorie DOT com>
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Reply-To:	alrc AT task DOT com DOT br

Hi all,

I work with DJGPP 2.3 (*.ver files: Djdev203.ver, Bnu213b.ver, Gcc32b.ver) and I want to use gprof, but its exit shows all functions (except __dpmi_int) with 0.00 % execution time. 

The FAQ (item 13.3 Gprof produces garbled profile) mentions: "The solution is to upgrade to DJGPP v2.03 where these bugs are solved", but I am running version 2.03.

The FAQ (item 13.4 Why is __dpmi_int so heavily used?) mentions: "Does your program use I/O or other real-mode services (like BIOS) extensively?". My answer is: my program does use disk I/O, but not extensively! I would expect other functions to have execution time different from zero, even in the scenario where __dpmi_int has a high percentual execution time...

The head of gprof's output is showed below:

Flat profile:

Each sample counts as 0.0555556 seconds.
  %   cumulative   self              self     total           
 time   seconds   seconds    calls  Ts/call  Ts/call  name    
100.00      0.28     0.28                             __dpmi_int
  0.00      0.28     0.00  7382040     0.00     0.00  crc_inc
  0.00      0.28     0.00    13368     0.00     0.00  led_boot_blink
  0.00      0.28     0.00     1213     0.00     0.00  led_reserva
  0.00      0.28     0.00      667     0.00     0.00  incrementa_instante_atual
  0.00      0.28     0.00      104     0.00     0.00  enfilera

Does anyone have an idea about what is going on here?

Thanks in advance,

Andre Chrcanovic

Task Internet - Acesso Banda Larga e Soluções Corporativas em Internet
Acesse www.task.com.br ou ligue (31) 3274-0255

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