Message-ID: <3B2D40BE.4A613509@mail.rosecom.ca> From: April X-Mailer: Mozilla 4.75 [en]C-CCK-MCD {TLC;RETAIL} (Win95; U) X-Accept-Language: en MIME-Version: 1.0 Newsgroups: comp.os.msdos.djgpp Subject: [Fwd: Re: gprof question] Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Lines: 14 Date: Sun, 17 Jun 2001 19:43:58 -0400 NNTP-Posting-Host: 205.189.215.13 X-Trace: client 992821380 205.189.215.13 (Sun, 17 Jun 2001 19:43:00 EDT) NNTP-Posting-Date: Sun, 17 Jun 2001 19:43:00 EDT To: djgpp AT delorie DOT com DJ-Gateway: from newsgroup comp.os.msdos.djgpp Reply-To: djgpp AT delorie DOT com DJ Delorie wrote: > Anything that does an OS call [causes a __dpmi_int] - read, time, > sbrk (used by malloc), sometimes getkey(). Would all file opening - fopen / open / _dos_open / _open - and corresponding i/o functions generate the same type of OS call? What I'm asking is: if I don't use _open and _read, would the interrupt calls be reduced? Thank you for your info. April