From mboxrd@z Thu Jan 1 00:00:00 1970 From: rminnich@gmail.com (ron minnich) Date: Wed, 25 Apr 2018 21:30:13 +0000 Subject: [TUHS] /dev/drum In-Reply-To: References: <8225C5DB-27BD-464E-930A-522C30C20EBD@tfeb.org> <25A1FED0-4F8B-408F-B27B-5728C649D8BE@collantes.us> <7wfu3nuqeb.fsf@junk.nocrew.org> <24637D2D-4865-4E45-821B-529CAEEA5589@ronnatalie.com> <20180425204548.GI15245@mcvoy.com> Message-ID: 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 wrote: > > > On 2018, Apr 25, at 4:45 PM, Larry McVoy 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. > > > > 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 > > -------------- next part -------------- An HTML attachment was scrubbed... URL: