On 19/01/17 16:39, Per Jessen wrote:
On 01/19/2017 02:49 AM, Per Jessen wrote:
With that size memory, it would be running a PAE kernel. OMG! The PAE mechanism involves a mapping table for the 32-bit system to address more than 4G. I'll leave aside the issue of why anyone might need for than 4G when many of us run excellent systems in that or less. Leaving out HPC apps, here are a few reasons - virtual hosting, databases, web- and mail-servers. Virtual hosting is probably the one real reason for 32Gb and more. Are there any desktop apps that would benefit? Photo editing?
Don't tempt me ... If we could get away from brain-dead first normal form database engines, a lot of the need for storing databases in RAM would disappear. One of my favourite war stories - a Pick database was ported to Oracle. After *six months* hard work optimising a particular query, the consultants proudly announced to management that the new system was 10% faster than the old one - 4min30 instead of 5mins. Unfortunately, they did this in earshot of the person maintaining the old system, who snorted - "Your twin Xeon 800 is ten percent faster than my Pentium 90, and you're PROUD of that fact?" (Oh - and a SQL guy said he bet the Pick query was hand-tuned - I doubt it. I'd guess it was thrown together in what, maybe 5 minutes?) I've had a pick system absolutely thrashing the disk with insufficient ram, and system response was poor but not dreadfully so. imnsho, "efficient" and "first normal form" are provably mathematically incompatible. Cheers, Wol -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org