Search Results

Search found 10789 results on 432 pages for 'cpu upgrade'.

Page 178/432 | < Previous Page | 174 175 176 177 178 179 180 181 182 183 184 185  | Next Page >

  • Why C++ people loves multithreading when it comes to performances?

    - by user1849534
    I have a question, it's about why programmers seems to love concurrency and multi-threaded programs in general. I'm considering 2 main approach here: an async approach basically based on signals, or just an async approach as called by many papers and languages like the new C# 5.0 for example, and a "companion thread" that maanges the policy of your pipeline a concurrent approach or multi-threading approach I will just say that I'm thinking about the hardware here and the worst case scenario, and I have tested this 2 paradigms myself, the async paradigm is a winner at the point that I don't get why people 90% of the time talk about concurrency when they wont to speed up things or make a good use of their resources. I have tested multi-threaded programs and async program on an old machine with an Intel quad-core that doesn't offer a memory controller inside the CPU, the memory is managed entirely by the motherboard, well in this case performances are horrible with a multi-threaded application, even a relatively low number of threads like 3-4-5 can be a problem, the application is unresponsive and is just slow and unpleasant. A good async approach is, on the other hand, probably not faster but it's not worst either, my application just waits for the result and doesn't hangs, it's responsive and there is a much better scaling going on. I have also discovered that a context change in the threading world it's not that cheap in real world scenario, it's infact quite expensive especially when you have more than 2 threads that need to cycle and swap among each other to be computed. On modern CPUs the situation it's not really that different, the memory controller it's integrated but my point is that an x86 CPUs is basically a serial machine and the memory controller works the same way as with the old machine with an external memory controller on the motherboard. The context switch is still a relevant cost in my application and the fact that the memory controller it's integrated or that the newer CPU have more than 2 core it's not bargain for me. For what i have experienced the concurrent approach is good in theory but not that good in practice, with the memory model imposed by the hardware, it's hard to make a good use of this paradigm, also it introduces a lot of issues ranging from the use of my data structures to the join of multiple threads. Also both paradigms do not offer any security abut when the task or the job will be done in a certain point in time, making them really similar from a functional point of view. According to the X86 memory model, why the majority of people suggest to use concurrency with C++ and not just an async aproach ? Also why not considering the worst case scenario of a computer where the context switch is probably more expensive than the computation itself ?

    Read the article

  • VMWare Workstation 6.5.5 on Ubuntu 10.04 Install Freezes

    - by Android Eve
    I am trying to install VMWare Workstation 6.5.5 (64-bit) on Ubuntu 10.04 (64-bit), but at about 2/3 of the progress bar, it freezes where it says: Installing VMWare Player 2.5.5 Configuring... Interestingly, it is so frozen, that even after I hit cancel, it is still stuck. CPU consumption is at 0% and the command with which I launched the installer is: sudo sh VMware-Workstation-6.5.5-328052.x86_64.bundle Anyone has seen this before? Any idea why this is happening and how to solve this?

    Read the article

  • Dell Vostro 1520 wifi not working with Ubuntu 12.04

    - by user65696
    I have installed Ubuntu 12.04 on Dell Vostro 1520 Laptop. But found Wifi is hardware locked, though wifi is working perfectly fine with Windows 7 in the same laptop. I tried to upgrade the drivers as mentioned in other posts/forums but could not resolve the issue. I had the similar problem with versions 11.* as well. Last time the Wifi worked with 10.* version. Please help me to get it resolved.

    Read the article

  • Tips To Install Vista Operating System

    When you try to upgrade your existing computer from Windows XP to Windows Vista or when you perform a clean install on a new system, then the process of installing Windows Vista is pretty straightfor... [Author: Nancy Bloomwood - Computers and Internet - May 20, 2010]

    Read the article

  • system requirement

    - by Sol
    My laptop developed a bad sectors and not working well. It was with ubutuntu 12.04 LTS operating system. Now, I want to install ubuntu in an relatively old desktop with the following specifications Hp compaq dx 2390 Intel ® Pentium Dual Core CPU, E2180 @ 2.00 GHZ, 1.20 GHz, 1 GB Ram, 160 GB Hard Drive Which k/x/ubuntu version is suitable to this desktop? PS. I am working in my final thesis and I need a stable k/x/ubuntu to this specification. Thank u

    Read the article

  • Is it already possible to enable Compiz on an i5 Thinkpad laptop?

    - by jmm
    Besides a number of other issues, I still cannot enable Compiz or any effects with Maverick on a Thinkpad X201. I understand this laptop is supported by Ubuntu, yet I have found a good number of posts reporting problems. I would like to know if they have been solved by now. Processor: 4x Intel(R) Core(TM) i5 CPU M 540 @ 2.53GHz Intel Corporation Core Processor Integrated Graphics Controller (rev 02) OpenGL Renderer Mesa DRI Intel(R) Ironlake Mobile GEM 20100330 DEVELOPMENT 2.6.35-27-generic #47-Ubuntu SMP Thanks for your help, jmm

    Read the article

  • Ubuntu 14.04 and Android, can't see phone on my computer

    - by user3527983
    I have installed gMTP and tried to follow this tutorial to solve this problem: http://www.webupd8.org/2013/01/upgrade-to-gvfs-with-mtp-support-in.html But neither worked. I tried to connect both my phone (Nexus 4) and my dad's phone (Galaxy Note 2), and neither is being detected by Ubuntu. They don't show up on my files and on gMTP. Is there another fix? or something more specific for Android 4.3 and Ubuntu 14.04

    Read the article

  • How to fix SLOW graphics printing on Ubuntu 12.10? Text is OK

    - by vbasic246
    Ubuntu 12.10 32-bit upgrade (dual boot with Win-7). Custom PC, onboard NVidia graphics. Motherboard: ECS EliteGroup GF8200A Black Series "HP LaserJet 3015" multifunction printer. Graphics printing fine with UB12.04, VERY SLOW on UB12.10. Per an article ran: ~$ sudo apt-get install mesa-utils ~$ glxinfo | grep renderer Output: OpenGL renderer string: GeForce 8200/integrated/SSE2/3DNOW! Do I need to get a graphics card to fix or will software tweaks solve this?

    Read the article

  • Gnome-Shell 3.4 Themes not working in 12.04?

    - by CGriffitt
    Even themes advertised as Gnome-shell 3.4 compatible have graphical issues on Gnome-Shell 3.4. The main thing is that the text is black and nearly invisible, and the icons in the applications screen are crowded and in some cases overlapping. The themes did not do this before upgrade, and the default doesn't do it now. I am using user theme extension, and the themes I have tried are the Ambiance-Color set and London Smoke (both of which are advertised as 3.4 compatible).

    Read the article

  • ViewSonic PC Mini VOT132 Review

    Is that a paperweight on your desk? Oops, sorry, it's a PC -- a space- and energy-saving desktop hardly bigger than a VHS cassette, priced at just $449, but with a dual-core Intel Atom CPU and all the power that office productivity workers need.

    Read the article

  • Top 10 Things to do to Prepare for Fusion Applications

    Cliff speaks with Nadia Bendjedou, Product Strategy Director for Oracle's Fusion Upgrade Office, about ways customers can prepare their current Oracle investment for Fusion by leveraging best practices, taking advantage of Oracle's Fusion Architecture and Fusion Middleware, and moving to SOA-based Integration.

    Read the article

  • Is Ubuntu recognizing and/or using my NVIDIA graphics card?

    - by user212860
    This is my first post here, and I'm pretty new to Ubuntu/Linux. I currently have no other OS except for Ubuntu 13.10. (I used to have Win7 until i got a new terabyte hard drive). My current PC build, if any of this helps: CPU: Intel i5 quad-core Graphics: NVIDIA GeForce GTX 650 RAM: 8 GB HDD: 1 TB SATA 3 Motherboard: MSi Z77 A-G41 OS Ubuntu 13.10 So I recently installed Ubuntu 13.10 and put Steam on it, and I'm seeing that my games run a lot slower than they did when I had Win7. I figured it was a graphics problem, so I checked System Settings Details Overview. It says in "Graphics" that I have "Gallium 0.4 on NVE7" (don't really know what that is). Does this mean that Ubuntu is not using my graphics card? In System Settings Software & Updates Additional Drivers, it clearly shows like this: NVIDIA Corporation: GK107 [GeForce GTX 650] -This device is using an alternative driver (And then it shows a list of drivers that I can switch back and forth to) So this is a bit confusing. In Software and Updates, it clearly shows that I have my NVIDIA card installed, and that I have a driver selected for it. But in System Settings, it shows I have some Gallium 0.4 thing. I had done a bit of research, and ended up typing command: "lspci|grep VGA" in the Terminal. It showed this in response: VGA compatible controller: NVIDIA Corporation GK107 [GeForce GTX 650] (rev a1) The Terminal seems to recognize my graphics card. What it looks like to me, is that I don't have the proper driver, and I might be using my CPU's integrated graphics. When I switch around which driver I am using in that list, it still does not see my card in System Settings. Some of the drivers in the list give me some sort of OpenGL error when I try to run a game. It might just be that my games are running slow because the game developers have not optimized it for Ubuntu that well. However, that still doesn't take away from the fact that System Settings is not showing my NVIDIA card. TL;DR Version: How do I know if my video card is being recognized/used? If my video card is not being used, what is the best way fix that? Please make your answers easy to understand. I do not mind wordy responses, as long as I can follow what you're saying. Any help would be greatly appreciated! Thanks, Jabber5

    Read the article

  • Computer is running slow with Ubuntu

    - by Bart
    Why my computer runs too slow when I install Ubuntu or any other Linux (Debian works better than other distros), but with windows works fine...? My configuration is: Processor: Intel Celeron CPU 1.70GHz Graphics: Ati Radeon 9250 128 MB HD: Western Digital 120GB RAM: 2GB DDR1 Motherboard: MSI (MS-6566) Is there anything unsuported by Ubuntu, or any Linux. If so, is there any way to get it work fine (visual effects are not important to me). What do I need to do?

    Read the article

  • News from the Fusion Update Program Office

    Cliff Godwin, Senior Vice President for Oracle's Fusion Upgrade Program Office, speaks with Fred about how Oracle can help with the overall customer experience of moving from the Applications Unlimited product lines to Fusion Applications.

    Read the article

  • Accidently system timer speed up

    - by Grind Core
    Laptop: Acer 5750zg I've found this issue in latest Ubuntu versions (13.04, 14.04) in all desktop environment. When I'm typing something in text field, randomly I get ~5..20 same symbols and everything speed up. It's happen few times per one minute and start from normal speed, slowly rising to super boost animation and other processes like CPU monitor, clock, window animation, etc. I think something wrong with system clock. Please help to figure out how to fix it.

    Read the article

  • How do I downgrade rhythmbox v2.98?

    - by fossfreedom
    I've been testing out the new WebUpd8 PPA for Rhythmbox which I used to upgrade from Rhythmbox v2.97 to v2.98. However, when I added this PPA, when using my favourite plugins replaygain and coverart-browser, Rhythmbox crashes with a segmentation fault. Worse, when this crash happens, my Unity desktop becomes unstable, with various applications failing to start with similar segmentation faults. Does anybody know the reason for this - but more importantly how to resolve this?

    Read the article

  • Notebook Review: Toshiba Tecra A11

    Toshiba's 15.6-inch business notebook doesn't skimp on features, with everything from an old-fashioned RS-232 port to facial recognition software, not to mention a fast Core i7 CPU and Nvidia graphics. Does this $1,349 laptop PC have the right stuff to serve as a desktop replacement?

    Read the article

  • Notebook Review: Toshiba Tecra A11

    Toshiba's 15.6-inch business notebook doesn't skimp on features, with everything from an old-fashioned RS-232 port to facial recognition software, not to mention a fast Core i7 CPU and Nvidia graphics. Does this $1,349 laptop PC have the right stuff to serve as a desktop replacement?

    Read the article

  • Detecting Hyper-Threading state

    - by jchang
    To interpret performance counters and execution statistics correctly, it is necessary to know state of Hyper-Threading. In principle, at low overall CPU utilization, for non-parallel execution plans, it should not matter whether HT is enabled or not. Of course, DBA life is never that simple. The state of HT does matter at high over utilization and in parallel execution plans depending on the DOP. SQL Server does seem to try to allocate threads on distinct physical cores at intermediate DOP (DOP less...(read more)

    Read the article

  • Divided we stand, united we fall

    <b>the Human Journey:</b> "...while servers are individually more important, you can far more easily, cheaply, and effectively test and upgrade your server fleet than you can your desktops and laptops."

    Read the article

  • Data Compare is Finally Back in VS 2012

    - by Aligned
    Originally posted on: http://geekswithblogs.net/Aligned/archive/2013/07/01/data-compare-is-finally-back-in-vs-2012.aspxI’ve been missing the data compare tool this since moving from VS 2010. I’ve install the VS 2013 v3 update and then the SQL Server Data Tools - June 2013 update. I don’t think v3 is required, but it’s a good upgrade to do anyways. http://blogs.msdn.com/b/ssdt/archive/2013/06/24/announcing-sql-server-data-tools-june-2013.aspx

    Read the article

< Previous Page | 174 175 176 177 178 179 180 181 182 183 184 185  | Next Page >