Re: [Pan-users] 64 bits fails as solution to large binary groups

[Duncan]

Ron Johnson posted on Mon, 10 Oct 2011 08:00:56 -0500 as excerpted:

> On 10/10/2011 04:55 AM, Duncan wrote:
>> Ron Johnson posted on Sun, 09 Oct 2011 22:15:24 -0500 as excerpted:
>>
>>> It's a fact that 32-bit Pan runs out of *process* address space at
>>> around 2GB.  64-bit Pan doesn't technically have that problem, but
>>> effectively it does, although it does for all practical intents.
>>
>> Well, the 32-bit part isn't quite accurate, or at least it's accurate
>> for only a subset of 32-bit.
>>
> It's completely accurate for the set of people who use pre-built Debian
> and Ubuntu kernels.

You mean they don't have a 32-bit "enterprise kernel" or perhaps a 
"enterprise/database kernel" or similar, with the 4G/4G userspace/
kernelspace option enabled?  Given that database-server targets have 
been, by my reading, the primary use of such a config, I'd have expected 
they'd have at least one such kernel option available.

OTOH, that's very clearly not the ordinary GUI desktop user that Ubuntu 
stereotypically targets, either, and I won't argue that expecting such a 
user to even know how to switch kernels isn't arguably expecting too 
much, but I'd have thought they'd have it available at least for Ubuntu 
Server, and thus, unless I'm mistaken, also available as a choice for 
Ubuntu desktop users.

And similarly, enough Linux servers are known to be based on Debian, and 
Debian itself is known for its broad support, that I do find it 
surprising to read that they don't have such a kernel as an option.

But perhaps it is accepted that such "advanced server usage" requires a 
reasonably good sysadmin, where "reasonably good sysadmin" is defined in 
part as having (or at minimum, knowing where/how to get) the knowledge to 
properly reconfigure and rebuild the kernel with that option enabled, if 
they need it.

-- 
Duncan - List replies preferred.   No HTML msgs.
"Every nonfree program has a lord, a master --
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