2010年11月11日 星期四 16:49
ARM现在还缺乏64Bit支持,不过这个很快就会有的。Intel已经很有鸭梨了。对于消费者而言,一个有竞争的市场才会是一个更良性的市场 2010/11/11 Kula <kulasama在gmail.com> > 我记得p4的功耗就有130w.. > 也就是说40个核的arm功耗和p4差不多. > arm在服务器领域会很有前途吧.. > > 2010/11/11 Samuel <yellowbug在gmail.com> > > 不要轻易认为自己想的是不合理的,你想的这事已经有人干出来了 >> >> Marvell Armada XP 四核1.6G的SoC,功耗不超过10W,铁定就是奔着云计算去的 >> >> http://www.pcworld.com/businesscenter/article/210156/marvells_armada_xp_could_bring_a_cloud_revolution.html >> >> >> Chip maker Marvell has announced a new enterprise-class server chip<http://www.pcworld.com/article/210069/arm_faces_uphill_battle_in_server_market.html>: >> the Armada XP. This is an ARM architecture chip<http://www.pcworld.com/article/171171/the_11_most_influential_microprocessors_of_all_time.html>, >> very similar to those found in the majority of handheld computing devices at >> the moment--everything from iPhones to Kindle eBook readers. >> As you might expect, the Armada XP is more powerful<http://www.pcworld.com/businesscenter/article/210013/marvell_nudges_arm_into_server_market.html>than the chips found in those humble devices. It contains four cores running >> at 1.6GHz and is a system-on-a-chip, meaning that there's no need for >> additional chipset hardware to take care of interfacing with the likes of >> storage or memory devices. >> >> The XP stands for "Extreme Performance" although its name is, viewed from >> every angle, a stupid choice. Anybody with any knowledge will think of AMD's >> old Athlon XP chips, or Microsoft's hoary, bewhiskered operating system. >> >> That aside, the Armada XP is an intriguing new product. Its chief selling >> point is that it consumes very little power compared to competitors from >> Intel or AMD. Lower power is not only environmentally friendly but also >> means less heat is produced, potentially making these chips easier to work >> with from a practical viewpoint. When you realize data centers need >> extraordinary amounts of expensive air conditioning, you can see why this is >> good. >> >> Will we be seeing Armada XP-based systems anytime soon? It's unlikely. >> Marvell is trying to carve out a new niche in a market that has >> traditionally been dominated by x86 and PowerPC architectures. The biggest >> issue facing take-up will be software<http://www.pcworld.com/article/172069/arm_flaunts_performance_by_boosting_processor_speed.html>: >> You're not going to be able to run any Microsoft enterprise-level products >> on this chip because of its ARM architecture (although there have been >> rumors that Microsoft is sniffing around ARM for its server products). >> However, as you might expect, open source is already on the scene<http://www.arm.com/community/software-enablement/linux.php>, >> and has been for some time. >> >> However, Marvell has its eye on a different market: cloud computing<http://www.pcworld.com/article/203965/arms_next_chip_design_to_support_virtualization.html>. >> This is still a nascent area, and providers are struggling to determine the >> best ways of making optimal use of hardware. Unlike much of the computing >> industry, the cloud isn't an area owned by x86. >> >> There's much talk about performance-per-watt, meaning the amount of >> computing power that can be gained per dollar spent. The ARM architecture is >> a serious contender here, even if it does tend to be slower than equivalent >> Intel or AMD products. The Armada XP weighs in at less than 10 watts--around >> one tenth the power taken by the average light bulb. Add in less need for >> expensive air conditioning in server farms, and even the most ardent x86 fan >> will raise an eyebrow. >> >> Although we can expect to see some curio products here and there based on >> the Armada XP, such as home media servers or NAS devices<http://www.pcworld.com/businesscenter/article/209679/networkattached_storage_how_to_pick_nas_for_any_business.html>, >> it simply isn't a serious contender right now in the server space. It has >> some serious technical limitations, such as being only 32-bit, but it >> signifies Marvell (and, by extension, ARM) is assembling a legion that will >> fight in the great cloud battle that's about to commence. Its soldiers might >> not be as legion as the likes of Intel, but they have specific skills that >> are ideal for this kind of battle. >> >> The net result will undoubtedly be cheaper computing resources--not only >> because of potentially cheaper performance-per-watt figures, but also from >> the serious competition that Intel and AMD face now face. >> >> It might even be the case one day that x86 is sandwiched between ARM in >> the marketplace--there'll be ARM on mobile devices and ARM in the cloud, >> leaving x86 in the middle<http://www.pcworld.com/article/160727/nvidia_mulls_x86_chip_for_lowcost_computers.html>to run desktop and notebook computers and modest server setups. >> >> >> >> 2010/11/11 <khufu在139.com> >> >>> 好像x86是不合理的,不好的。但是除了x86,没有那么大运算能力。 >>> >>> 那么这样岂不很好?做个上网本,上面装个十来个arm的cpu,或者三十来个,这样性能够高,又功率低。 >>> >>> 只是这样需要程序多线程就可以了。现在网页这样复杂,做成多线程很合理吧,一个用于跑javascript,一个解析html,一个做渲染,一个管UI,并且tab >>> browse的时候每个页面都分成上面几种,线程一下子就可以做几十个出来,就可以用这种多CPU的东西了。 >>> >>> 一点外行的旁观想法。请听了的人别笑,要是我说错了,认真地说明为什么错了。 >>> >>> >>> _______________________________________________ >>> zeuux-universe mailing list >>> zeuux-universe在zeuux.org >>> http://www.zeuux.org/mailman/listinfo/zeuux-universe >>> >>> ZEUUX Project - Free Software, Free Society! >>> http://www.zeuux.org >>> >> >> >> _______________________________________________ >> zeuux-universe mailing list >> zeuux-universe在zeuux.org >> http://www.zeuux.org/mailman/listinfo/zeuux-universe >> >> ZEUUX Project - Free Software, Free Society! >> http://www.zeuux.org >> > > -------------- 下一部分 -------------- 一个HTML附件被移除... 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