Am Donnerstag, 19. Mai 2016 23:03:16 UTC+2 schrieb Tobias B. Besemer: > Am Donnerstag, 19. Mai 2016 22:59:35 UTC+2 schrieb Tobias B. Besemer: > > Am Donnerstag, 19. Mai 2016 22:00:55 UTC+2 schrieb Nathan Froyd: > > > On Thu, May 19, 2016 at 1:58 PM, Tobias B. Besemer wrote: > > > > Question is: > > > > If Mozilla will really "Backout MSVC 2015 from aurora" because 2 people > > > > are not able to configure there PCs right in BIOS ??? > > > > https://bugzilla.mozilla.org/show_bug.cgi?id=1270664 > > > > > > Perhaps those people deliberately disabled SSE in their BIOS for > > > testing purposes. Which is valuable, because very few Firefox > > > developers are testing on non-SSE capable CPUs. > > > > > > In any event, you misunderstand the cause here. We're not backing out > > > MSVC changes just because of these two users. We're backing out MSVC > > > changes because other infrastructure (the update server, the > > > installer, etc.) isn't yet prepared for the SSE-required world we > > > appear to be moving towards. Making those changes deliberately in 49, > > > rather than being surprised by it in 48, ensures a better experience > > > for everyone (e.g. Firefox doesn't mysteriously start crashing when > > > upgrades happen). > > > > > > -Nathan > > > > OK, means if there is no switch back to the older compiler, the compiled > > app wouldn't run without SSE2? > > Sorry! Mean: Compiled with MSVC 2015 Firefox wouldn't run on Windows PC with > a Pentium II processor, or older (older then 1999)... ^^ > https://en.wikipedia.org/wiki/Streaming_SIMD_Extensions
Here some truths about SSE... "In computing, Streaming SIMD Extensions (SSE) is an SIMD instruction set extension to the x86 architecture, designed by Intel and introduced in 1999 in their Pentium III series processors as a reply to AMD's 3DNow!" https://de.wikipedia.org/wiki/Streaming_SIMD_Extensions ...so the last processor _without_ SSE is a Pentium II... https://en.wikipedia.org/wiki/Pentium_II Tech specs: Produced: From mid-1997 to early 1999 Max. CPU clock rate: 233 MHz to 450 MHz FSB speeds: 66 MHz to 100 MHz Requirements for Win7: [...] As expected, Windows 10 follows more in the line of 7 than it does 8, wrapping all but the most pitiful of PCs under its umbrella of coverage. Given that Microsoft plans to support 10 universally across a wide variety of smartphones, tablets, laptops and desktops, it’s not exactly surprising that you can almost run the new OS on a toaster if you really wanted to. Minimum system requirements for Windows 10 include a 1GHz processor or faster (single-core). 1GB of RAM will be necessary for the 32-bit version, while you’ll need to bump your computer up to 2GB if you plan on picking up the 64-bit build. [...] http://www.digitaltrends.com/computing/according-to-microsofts-specs-a-toaster-could-run-windows-10-so-you-probably-can-to/ But a Pentium II have only max. 450 MHz! Requirements Vista... Windows Vista Home Basic: - 800-megahertz (MHz) 32-bit (x86) processor or 800-MHz 64-bit (x64) processor - 512 megabytes (MB) of system memory Note On system configurations that use system memory as graphics memory, at least 448 MB of system memory must be available to the operating system after some memory is allocated for graphics. [...] https://support.microsoft.com/en-us/kb/919183 ...doesn't work with Pentium II! Now XP... Hardware requirements: To install SP3 on a single computer, your computer must have a CD-ROM drive and at least the following: A 233 megahertz (MHz) processor 64 megabytes (MB) of RAM 900 MB of available disk space during installation https://technet.microsoft.com/de-de/library/cc507836.aspx ... so yes, you can install a WinXP on a Pentium II! But this OS have some security vulnerabilities... ... to be exact: 70! https://www.cvedetails.com/vulnerability-list/vendor_id-26/product_id-739/cvssscoremin-5/cvssscoremax-5.99/Microsoft-Windows-Xp.html But if Mozilla spend enough time the next days, you will be able to run Firefox 48 on a Windows XP, that have - if all fixes installed - 70 security vulnerabilities, with a Pentium II from 1998... ^^ _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
