25 Apr
2018
25 Apr
'18
11:30 p.m.
there's an interesting parallel discussion going on over at riscv about
page size. 4k won the day.
fairly shocking in a world of 4 TiB systems but ...
ron
On Wed, Apr 25, 2018 at 2:21 PM Lawrence Stewart <stewart(a)serissa.com>
wrote:
Wasn't that a Seymour Cray quote? Seems like he was also not a fan of VM.
My favorite is due to Dave Clark at MIT: “Anytime someone says ‘virtual’
you should think ‘slow’”
followed closely by “Any problem in computer science can be solved by
adding a layer of abstraction” and “Any performance problem can be solved
by removing a layer of abstraction.”
As one converted to the HPC cults, I am naturally opposed to small pages,
virtual anything, and interrupts…
-L
On 2018, Apr 25, at 4:45 PM, Larry McVoy
<lm(a)mcvoy.com> wrote:
>> Our comment was that ???It ain???t VIRTUAL memory if it isn???t all
there??? as
opposed to virtual addressing.
Gene Amdahl was not a fan of paging. He said that virtual memory
merely magnifies the need for real memory.