On 2/23/12 2:22 PM, John Baldwin wrote: > On Wednesday, February 22, 2012 9:59:02 pm Doug Barton wrote: >> On 02/22/2012 01:42, Ivan Voras wrote: >>> The Dragonfly team has recently liberated their VM from the giant lock and >>> there are some interesting benchmarks comparing it to FreeBSD 9 and a > derivative of RedHat Enterprise Linux: >>> >>> http://leaf.dragonflybsd.org/mailarchive/kernel/2011-11/msg00008.html >>> >>> Other developments are described in their release notes: >>> http://www.dragonflybsd.org/release30/ >> >> The 4.5 times improvement by enabling kern.ipc.shm_use_phys is pretty >> notable, what prevents us from enabling that by default? > > It makes all your SYSV SHMs wired. That's fine if you are running a dedicated > server using SYSV SHMs where you want that process to use all the RAM in the > machine (e.g. a pgqsl server). It's not so great for a general purpose load > where you would like an otherwise-idle process using SYSV SHMs to have the > SHMs > paged out to swap if other processes on the machine need memory and the box is > under memory pressure. >
John, any chance we can get that in layman's terms ? I'm totally no coder, but I'd really like if we could do this at my work place to increase our firewalls' performances. _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "freebsd-hackers-unsubscr...@freebsd.org"