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?
I believe Per Jensen mentioned a server that had been up for over 4 years with just 2G.
Yup.
I'm sure that more than 4G I have in my 64-bit desktop would be nice
I've got 4Gb in my main workstation, the big memory consumers are firefix, Xorg, thunderbird, and libreoffice.
If I were corporate and the LAN/SAN were the limit I'd see about gigabit networking or optical networking. But then again, all my machines, except for a few from the Closet of Anxieties with 800Mhz 32-bit/1GRAM are 64-bit.
For office networks, 1GigE has long been the norm, quite possibly moving towards 10GigE in some areas. For a SAN, 32Gbit is probably the norm now, 8G fibre is slowly coming on to the 2nd hand market.
But "-pae"? Even so, a processes address space remains at 32-bits, meaning it can only access a maximum of 4GB of memory. The OS however can access a 64GB address space, allocating 4GB chunks to processes.
In the business, we have one system left running with a PAE kernel - it's a mailserver with 12Gb of memory, nothing special. We don't need lots of memory per process, just lots of them. (imap users).
If this were critical, if this were corporate, I'd seriously look at getting a new mobo and a 64-but processor.
In our case, sure, but there wouldn't be a lot gained. That mailserver just keeps going and going, when it does eventually die, we'll replace it. There are two things that speak for an immediate upgrade - a) availability of spareparts b) electricity savings
As a manager, I look at this way: the cost of time (that is, salary or consultant's fee) flutzing around with this, ongoing,
There isn't any more futzing around than with any other box. If you want PAE, just install the right kernel, that's all. -- Per Jessen, Zürich (-4.1°C) http://www.dns24.ch/ - your free DNS host, made in Switzerland. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org