Re: Maximum memory allocation per process
On Fri, 30 May 2008 16:37:00 +0200 (CEST), Oliver Fromme wrote: > Dinesh Nair wrote: > > for those of us who're booting off a stripped down freebsd and are not > > using the 4th routines, are the above to be set before 'load /kernel' > > or after 'load /kernel' ? > > It doesn't matter. The tunables are passed to the kernel > when it is booted. In fact, the standard beastie.4th > stuff loads the kernel before displaying the menu, so > the settings happen after the kernel is loaded. thanx for the tip. -- Regards, /\_/\ "All dogs go to heaven." [EMAIL PROTECTED](0 0) http://www.openmalaysiablog.com/ +==oOO--(_)--OOo==+ | for a in past present future; do| | for b in clients employers associates relatives neighbours pets; do | | echo "The opinions here in no way reflect the opinions of my $a $b." | | done; done | +=+ ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: Maximum memory allocation per process
Dinesh Nair wrote: > for those of us who're booting off a stripped down freebsd and are not > using the 4th routines, are the above to be set before 'load /kernel' or > after 'load /kernel' ? It doesn't matter. The tunables are passed to the kernel when it is booted. In fact, the standard beastie.4th stuff loads the kernel before displaying the menu, so the settings happen after the kernel is loaded. Best regards Oliver -- Oliver Fromme, secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing b. M. Handelsregister: Registergericht Muenchen, HRA 74606, Geschäftsfuehrung: secnetix Verwaltungsgesellsch. mbH, Handelsregister: Registergericht Mün- chen, HRB 125758, Geschäftsführer: Maik Bachmann, Olaf Erb, Ralf Gebhart FreeBSD-Dienstleistungen, -Produkte und mehr: http://www.secnetix.de/bsd "Being really good at C++ is like being really good at using rocks to sharpen sticks." -- Thant Tessman ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: Maximum memory allocation per process
On Fri, May 30, 2008 at 01:58:14PM +0800, Dinesh Nair wrote: > On Thu, 22 May 2008 06:38:19 -0700, Jeremy Chadwick wrote: > > You need to modify some kernel settings via /boot/loader.conf and > > reboot. Here's what we use on our production RELENG_6 and RELENG_7 > > boxes: > > > > # Increase maximum allocatable memory on a process to 2GB. > > # (We don't choose 3GB (our max RAM) since that would > > # exhaust all memory, and result in a kernel panic.) > > # Set default memory size as 768MB. > > # Maximum stack size is 256MB. > > # > > kern.maxdsiz="2048M" > > kern.dfldsiz="768M" > > kern.maxssiz="256MB" > > for those of us who're booting off a stripped down freebsd and are not > using the 4th routines, are the above to be set before 'load /kernel' or > after 'load /kernel' ? > > currently, loader.rc contains, > > --- cut here --- > set console=comconsole > set hw.ata.atapi_dma="0" > set hw.ata.ata_dma="0" > set hw.ata.wc="0" > load /kernel > load -t mfs_root /mfsroot > boot > --- cut here --- I believe these would either need to be set *before* loading the kernel, or, possibly it doesn't matter at all (they might be passed to the kernel itself during "boot"). -- | Jeremy Chadwickjdc at parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP: 4BD6C0CB | ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: Maximum memory allocation per process
On Thu, 22 May 2008 06:38:19 -0700, Jeremy Chadwick wrote: > You need to modify some kernel settings via /boot/loader.conf and > reboot. Here's what we use on our production RELENG_6 and RELENG_7 > boxes: > > # Increase maximum allocatable memory on a process to 2GB. > # (We don't choose 3GB (our max RAM) since that would > # exhaust all memory, and result in a kernel panic.) > # Set default memory size as 768MB. > # Maximum stack size is 256MB. > # > kern.maxdsiz="2048M" > kern.dfldsiz="768M" > kern.maxssiz="256MB" for those of us who're booting off a stripped down freebsd and are not using the 4th routines, are the above to be set before 'load /kernel' or after 'load /kernel' ? currently, loader.rc contains, --- cut here --- set console=comconsole set hw.ata.atapi_dma="0" set hw.ata.ata_dma="0" set hw.ata.wc="0" load /kernel load -t mfs_root /mfsroot boot --- cut here --- -- Regards, /\_/\ "All dogs go to heaven." [EMAIL PROTECTED](0 0) http://www.openmalaysiablog.com/ +==oOO--(_)--OOo==+ | for a in past present future; do| | for b in clients employers associates relatives neighbours pets; do | | echo "The opinions here in no way reflect the opinions of my $a $b." | | done; done | +=+ ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: Maximum memory allocation per process
On Thu, May 22, 2008 at 11:00:37PM +1000, Adrian Thearle wrote: > I have a problem with a perl script running out of memory. From my googling > I have found that perl itself does not seem to impose any memory limits, > and I have check ulimit and login.conf for any userclass limitations but > found nothing that seems to be limiting my memory. > > I have 128MBytes of RAM and a 2Gbyte swap partition. > > I am currently running > FreeBSD albert 6.2-STABLE FreeBSD 6.2-STABLE #11: Sun Sep 2 00:45:05 EST > 2007 > which I guess isn't exactly the latest... but the same thing happens on my > REL7.0 Box > > The process (imapsync in this case) runs out of ram at pretty much 512MB. I > read on a forum that BSD 6 imposes such a limit of 512MB per process, but i > have found no where to tune this, or even see what it is. You need to modify some kernel settings via /boot/loader.conf and reboot. Here's what we use on our production RELENG_6 and RELENG_7 boxes: # Increase maximum allocatable memory on a process to 2GB. # (We don't choose 3GB (our max RAM) since that would # exhaust all memory, and result in a kernel panic.) # Set default memory size as 768MB. # Maximum stack size is 256MB. # kern.maxdsiz="2048M" kern.dfldsiz="768M" kern.maxssiz="256MB" > I have also read that there are two sysctl namely, kern.maxdsiz and > kern.maxssiz, that can tune memory allocation but what happend to them in > Freebsd 6. These are not sysctls, they are kernel settings. They exist on both RELENG_6 and RELENG_7. -- | Jeremy Chadwickjdc at parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP: 4BD6C0CB | ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[EMAIL PROTECTED]"
