Re: [Wt-interest] WT memory usage

2008-11-25 Thread Jakov af Wallby
On Mon, Nov 24, 2008 at 08:38:18PM +0100, Koen Deforche wrote: The way I understand it, linux overcommits memory: malloc() will It depends. On uclinux, or with uclinuxish software stacks, it does not overcommit. -- regards, Jakob It's is not, it isn't ain't, and it's it's, not its, if you

Re: [Wt-interest] WT memory usage

2008-11-25 Thread Wim Dumon
2008/11/25 Jakov af Wallby [EMAIL PROTECTED]: On Mon, Nov 24, 2008 at 08:38:18PM +0100, Koen Deforche wrote: The way I understand it, linux overcommits memory: malloc() will It depends. On uclinux, or with uclinuxish software stacks, it does not overcommit. There are probably a few places

Re: [Wt-interest] WT memory usage

2008-11-25 Thread Goetz Babin-Ebell
Hello Wim, Am Dienstag, den 25.11.2008, 15:53 +0100 schrieb Wim Dumon: 2008/11/25 Jakov af Wallby [EMAIL PROTECTED]: On Mon, Nov 24, 2008 at 08:38:18PM +0100, Koen Deforche wrote: The way I understand it, linux overcommits memory: malloc() will It depends. On uclinux, or with

[Wt-interest] WT memory usage

2008-11-24 Thread Goetz Babin-Ebell
Hello folks, With the actual WT release our application uses 36MB of RAM. Considering the fact that the system has only 32 MB at all, this is a major problem. Has anybody any idea how to minimize the memory footprint of an WT application ? Goetz -- Goetz Babin-Ebell [EMAIL PROTECTED] 4G

Re: [Wt-interest] WT memory usage

2008-11-24 Thread Koen Deforche
Hey Goetz, 2008/11/24 Goetz Babin-Ebell [EMAIL PROTECTED]: Hello folks, With the actual WT release our application uses 36MB of RAM. Considering the fact that the system has only 32 MB at all, this is a major problem. The way you phrase your question suggests you saw a big jump in memory

Re: [Wt-interest] WT memory usage

2008-11-24 Thread Koen Deforche
Hey Goetz, 2008/11/24 Goetz Babin-Ebell [EMAIL PROTECTED]: The way you phrase your question suggests you saw a big jump in memory usage with the latest release? With 2.1.5 it was a problem (20MB), but not that burning... I think I have found a reason for this behaviour: threads were

Re: [Wt-interest] WT memory usage

2008-11-24 Thread Koen Deforche
Hey Goetz, 2008/11/24 Goetz Babin-Ebell [EMAIL PROTECTED]: That is okay. But, those are mapped memory, not actually used. Mapped memory does not consume memory until it is actually used (i.e. swapped in). And that is the problem: It is an embedded device, which means no swap. And