On 06/26/2013 04:12 PM, Lew Wolfgang wrote:
Hi Folks,
Back in the '80s we configured swap space to be 1.5 x RAM as a rule of thumb. But I'm configuring 6 boxes now that contain 64-GB of RAM and I'm wondering if swap should be anything close to 96-GB. The boxes have only 128-GB of SSD for the operating system, so I'd like to minimize swap as much as possible.
As background, these devices will be used as dedicated data acquisition devices. They will pump data from four Gig-E Ethernet ports and store it all in a 24-disk RAID-6 array. Preliminary measurements show we should be able to maintain continuous throughput until the RAID is full.
So, any opinions on swap size in relation to RAM?
I'd add 8 or 16GB. Okay, the system would be sloooow when it starts to swap, e.g. if a process goes wild, but better slooow and having the chance to fix/kill that process than letting the kernel kill random processed - maybe you can't even login anymore (e.g. if you're using it remotely most of the time). But as the other's say: it's depending on the application. Have a nice day, Berny -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org