On Wed, 2008-09-10 at 09:15 +0200, Marco Pesenti Gritti wrote: > On Wed, Sep 10, 2008 at 4:29 AM, Gary C Martin <[EMAIL PROTECTED]> wrote: > > > > OK, news is not great on the Activity front... > > > > SUMMARY: 759 vs 711 each Activity instance in 759 consumes an average > > of 1Mb more memory than the same Activity running in 711, with > > Write-57 reportedly taking significantly more than that (perhaps ~7Mb). > > > > Is top and/or ps memory usage calculated in the same way between these > > builds? Could make collecting real data pretty painful. > > Unfortunately not, there has been changes in the kernel. My > understanding is that private memory will be the same, while > calculation of shared memory has changed. Riccardo has a new kernel > somewhere with instructions on how to install it on 711. That should > make the memory usage comparable. > > Marco
I used this newer kernel (as it accounts also for pss) for measurements with ps_mem on build 703: http://dev.laptop.org/~rlucchese/utils/703/kernel-2.6.25-20080501.3.olpc.231c7b715f4a8d0.i586.rpm It can be installed on the xo with: $ rpm -ivh kernel-....rpm $ cp -a /boot/* /versions/boot/current/boot/ You will also have to update the ram disk image; you can follow the instructions at the bottom of http://wiki.laptop.org/go/Kernel_Building You may also want to try this patched ps_mem (shows pids and doesn't group entries by process name): http://dev.laptop.org/~rlucchese/utils/ps_mem.py riccardo _______________________________________________ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
