On Tue, Jul 05, 2016 at 04:42:09PM -0700, Gregory Szorc wrote: > On Tue, Jul 5, 2016 at 3:58 PM, Ralph Giles <gi...@mozilla.com> wrote: > > > On Tue, Jul 5, 2016 at 3:36 PM, Gregory Szorc <g...@mozilla.com> wrote: > > > > > * `mach build binaries` (touch network/dns/DNS.cpp): 14.1s > > > > 24s here. So faster link times and significantly faster clobber times. I'm > > sold! > > > > Any motherboard recommendations? If we want developers to use machines > > like this, maintaining a current config in ServiceNow would probably > > help. > > > Until the ServiceNow catalog is updated... > > The Lenovo ThinkStation P710 is a good starting point ( > http://shop.lenovo.com/us/en/workstations/thinkstation/p-series/p710/). > From the default config: > > * Choose a 2 x E5-2637v4 or a 2 x E5-2643v4 > * Select at least 4 x 8 GB ECC memory sticks (for at least 32 GB) > * Under "Non-RAID Hard Drives" select whatever works for you. I recommend a > 512 GB SSD as the primary HD. Throw in more drives if you need them. > > Should be ~$4400 for the 2xE5-2637v4 and ~$5600 for the 2xE5-2643v4 > (plus/minus a few hundred depending on configuration specific). > > FWIW, I priced out similar specs for a HP Z640 and the markup on the CPUs > is absurd (costs >$2000 more when fully configured). Lenovo's > markup/pricing seems reasonable by comparison. Although I'm sure someone > somewhere will sell the same thing for cheaper. > > If you don't need the dual socket Xeons, go for an i7-6700K at the least. I > got the > http://store.hp.com/us/en/pdp/cto-dynamic-kits--1/hp-envy-750se-windows-7-desktop-p5q80av-aba-1 > a few months ago and like it. At ~$1500 for an i7-6700K, 32 GB RAM, and a > 512 GB SSD, the price was very reasonable compared to similar > configurations at Dell, HP, others. > > The just-released Broadwell-E processors with 6-10 cores are also nice > (i7-6850K, i7-6900K). Although I haven't yet priced any of these out so I > have no links to share. They should be <$2600 fully configured. That's a > good price point between the i7-6700K and a dual socket Xeon. Although if > you do lots of C++ compiling, you should get the dual socket Xeons (unless > you have access to more cores in an office or a remote machine).
The other week I built a machine with a 6800k, 32gb of ram, and a 2 tb hdd for $1525 cad so probably just under $1000 usd. With just that machine I can do a 10 minute linux debug build. For less than the price of the e3 machine quoted above I can buy 4 of those machines which I expect would produce build times under 5:00. I believe with 32gb of ram there's enough fs cache disk performance doesn't actually matter, but it might be worth investigating moving a ssd to that machine at some point. So I would tend to conclude Xeons are not a great deal unless you really need to build for windows a lot before someone gets icecc working there. Trev > If you buy a machine today, watch out for Windows 7. The free Windows 10 > upgrade from Microsoft is ending soon. Try to get a Windows 10 Pro license > out of the box. And, yes, you should use Windows 10 as your primary OS > because that's what our users mostly use. I run Hyper-V under Windows 10 > and have at least 1 Linux VM running at all times. With 32 GB in the > system, there's plenty of RAM to go around and Linux performance under the > VM is excellent. It feels like I'm dual booting without the rebooting part. > _______________________________________________ > dev-platform mailing list > dev-platform@lists.mozilla.org > https://lists.mozilla.org/listinfo/dev-platform _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
