[ug-bosug] Fwd: [cslug] malloc problem on Solaris

Fri Sep 14 10:35:37 PDT 2007

I lack the experience on such topics. Can someone help him out ?

Vijay: Please join the POSUG list (and perhaps BOSUG as well).

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-- Sriram

---------- Forwarded message ----------
From: vijay das <lovingvijay2002 at yahoo.com>
Date: Sep 14, 2007 12:07 PM
Subject: [cslug] malloc problem on Solaris
To: cslug at yahoogroups.com

  Hi friends , i know its a Linux group but still if
anybody has any idea

The default Sun Solaris malloc library is generally
considered inefficient.
For high scalability and high performance, it is best
to use 3rd party memory manager library. For example,
I have simple/pure C/C++ program

1. Allocates, say 512 MB memory.
2. Free the memory allocated in step 1.
3. Allocate, memory in step1 + 10MB.
4. Free the memory in step 3.

If I use 'pmap' to watch the meomory *after* step 2
and step 4, it still says that much memory is still in
use by the process. If I used Hoard memory library,
for example, the 'pmap' output after step2 and step4
drops down to original values.

The Hoard memory library (http://www.hoard.org) has
some quirks, the 'ps'
command doesn't work, for example, complains that 'ps'
is wrong ELF format.

which 3rd party memory manager is best for Solaris
platform? Does any body have any experiences with
alternate memory manager on Solaris?

thanks
Vijay

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