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Re: libstdc++/4150: catastrophic performance decrease in C++ code
- From: Jason Merrill <jason at redhat dot com>
- To: jason at gcc dot gnu dot org
- Cc: gcc-prs at gcc dot gnu dot org,
- Date: 15 Apr 2002 23:16:03 -0000
- Subject: Re: libstdc++/4150: catastrophic performance decrease in C++ code
- Reply-to: Jason Merrill <jason at redhat dot com>
The following reply was made to PR libstdc++/4150; it has been noted by GNATS.
From: Jason Merrill <jason@redhat.com>
To: libstdc++@gcc.gnu.org
Cc: gcc-gnats@gcc.gnu.org
Subject: Re: libstdc++/4150: catastrophic performance decrease in C++ code
Date: Tue, 16 Apr 2002 00:15:10 +0100
>>>>> "Jason" == Jason Merrill <jason@redhat.com> writes:
> is there any reason why we can't leave the file pointer at the end of the
> last read block, rather than at the beginning as we do now?
Which is what libio does, and which would seem to be the only way to avoid
this sort of problem. Can anyone enlighten me as to the design
goals/decisions of the current implementation?
Continuing to hack...
Jason