Article View: borland.public.cppbuilder.nativeapi
Article #8600Re: malloc: where is the catch?
From: Azazello
Date: Thu, 07 Oct 2004 15:45
Date: Thu, 07 Oct 2004 15:45
23 lines
2046 bytes
2046 bytes
Thanks Ed and Allan. > Question: could you please wrap your lines. Thanks. Answer: I used HTML version of newgroups when posted it. It appeared to be wrapped when I typed it, but... Sorry about that. I use Outlook now, hope it fixes the problem. Answers generate more questions ;). 1. I didn't know that C RTL memory manager allocates significant amount of memory when application loads. Tracing malloc call I didn't see any calls to VirtualAlloc/HeapAlloc. It seems it does not use WinAPI calls alltogether. How much is allocated initially, by the way? 2. How big is C RTL heap ( Project->Options->Linker tab tells me process default heap sizes, not C RTL heap sizes, right?) ? 3. Is it possible to get rid of C RTL heap/memory manager alltogether? I assume if I don't use any allocations in C RTL heap it's still there. 4. Still, why serialized/growable heap is faster than non-seriralized/non-growable? In principle, there is overhead for serializations and fixed size heap I would expect to be faster, since no need to commit more pages. Azazello.
Technical Details
Message-ID:
<41656450$1@newsgroups.borland.com>Path:
arc1-ca.pugleaf.net!g2news1.google.com!news1.google.com!news.glorb.com!npeer.de.kpn-eurorings.net!newsfeed00.sul.t-online.de!newsfeed01.sul.t-online.de!t-online.de!newsgroups.borland.com!not-for-mailReferences:
<4165469c$1@newsgroups.borland.com>Show Full Headers
Complete Article Headers
X-Google-Thread: 10cc67,50f14b41a5262fc0 X-Google-Attributes: gid10cc67,public X-Google-Language: ENGLISH,ASCII-7-bit Reply-To: "Azazello" <snimi_potniki@hotmail.com> From: "Azazello" <snimi_potniki@hotmail.com> Newsgroups: borland.public.cppbuilder.nativeapi References: <4165469c$1@newsgroups.borland.com> Subject: Re: malloc: where is the catch? Date: Thu, 7 Oct 2004 08:45:34 -0700 Lines: 25 X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 X-RFC2646: Format=Flowed; Original NNTP-Posting-Host: 142.58.249.61 Message-ID: <41656450$1@newsgroups.borland.com> X-Trace: newsgroups.borland.com 1097163856 142.58.249.61 (7 Oct 2004 08:44:16 -0700) Path: arc1-ca.pugleaf.net!g2news1.google.com!news1.google.com!news.glorb.com!npeer.de.kpn-eurorings.net!newsfeed00.sul.t-online.de!newsfeed01.sul.t-online.de!t-online.de!newsgroups.borland.com!not-for-mail