RE: shmmax tops out at 2G?
Hello Bill: -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Bill Moran Sent: Monday, December 11, 2006 2:15 PM To: [EMAIL PROTECTED] Subject: shmmax tops out at 2G? uname -a FreeBSD db00.lab00 6.2-BETA3 FreeBSD 6.2-BETA3 #1: Fri Dec 8 09:27:37 EST 2006 [EMAIL PROTECTED]:/usr/obj/usr/src/sys/DB-2850-amd64 amd64 sysctl kern.ipc.shmmax=22 kern.ipc.shmmax: 21 - -2094967296 Looks like an unsigned 32-bit int. That doesn't seem to scale as well as would be expected on 64-bit arch. Is this a mistake, or intentional? I'm working with some big memory systems, and I sure would like to allocate more than 2G for PostgreSQL to use ... -- Bill Moran Collaborative Fusion Inc. --- This may be a silly question but, have you compiled a PAE-enabled kernel? If not, check out /sys/i386/conf/PAE. Regards, Mike ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: shmmax tops out at 2G?
On Wed, Dec 13, 2006 at 12:27:22AM -0800, Michael K. Smith - Adhost wrote: Hello Bill: -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Bill Moran Sent: Monday, December 11, 2006 2:15 PM To: [EMAIL PROTECTED] Subject: shmmax tops out at 2G? uname -a FreeBSD db00.lab00 6.2-BETA3 FreeBSD 6.2-BETA3 #1: Fri Dec 8 09:27:37 EST 2006 [EMAIL PROTECTED]:/usr/obj/usr/src/sys/DB-2850-amd64 amd64 sysctl kern.ipc.shmmax=22 kern.ipc.shmmax: 21 - -2094967296 Looks like an unsigned 32-bit int. That doesn't seem to scale as well as would be expected on 64-bit arch. Is this a mistake, or intentional? I'm working with some big memory systems, and I sure would like to allocate more than 2G for PostgreSQL to use ... -- Bill Moran Collaborative Fusion Inc. --- This may be a silly question but, have you compiled a PAE-enabled kernel? If not, check out /sys/i386/conf/PAE. Yeah, it is ;-) PAE is a hack for legacy i386 systems which cannot run in full 64-bit (amd64) mode - it's not relevant to this problem. Bill's guess is probably right, so someone needs to go over the sysv ipc code and make it 64-bit capable. Kris pgpRyOzVYEy9s.pgp Description: PGP signature
shmmax tops out at 2G?
uname -a FreeBSD db00.lab00 6.2-BETA3 FreeBSD 6.2-BETA3 #1: Fri Dec 8 09:27:37 EST 2006 [EMAIL PROTECTED]:/usr/obj/usr/src/sys/DB-2850-amd64 amd64 sysctl kern.ipc.shmmax=22 kern.ipc.shmmax: 21 - -2094967296 Looks like an unsigned 32-bit int. That doesn't seem to scale as well as would be expected on 64-bit arch. Is this a mistake, or intentional? I'm working with some big memory systems, and I sure would like to allocate more than 2G for PostgreSQL to use ... -- Bill Moran Collaborative Fusion Inc. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
