Search Results

Search found 1806 results on 73 pages for 'numeric precision'.

Page 37/73 | < Previous Page | 33 34 35 36 37 38 39 40 41 42 43 44  | Next Page >

• Virtual Machines: What components should I upgrade to improve running virtual machines?

  - by joshsvoss

  at work I need to have one or sometimes two instances of a vmware virtual Windows 7 machine running on my real Windows 7 machine. The computer I'm using is Dell Precision 490 from 2009 I believe, possibly earlier. Running Windows 7 ultimate. Problems while running VM's: The entire computer slows down when a vmware instance is running. Pages take a while to react to a scroll, applications take forever to launch, and programs hang both in the virtual machines and on the real one. So, what components should I upgrade to improve this? I guess a more pointed question would be, which components will help the most? Possible options: Getting 8gb of RAM instead of 4gb new graphics card new processors? (Is that really an option?) My intuition tells me it will be a combination of the RAM and graphics card. There is also the possibility that an '09 tower just isn't cut out for vm's and our business should purchase a new tower.

  Read the article

• SQL SERVER – 2012 – List All The Column With Specific Data Types in Database

  - by pinaldave

  5 years ago I wrote script SQL SERVER – 2005 – List All The Column With Specific Data Types, when I read it again, it is very much relevant and I liked it. This is one of the script which every developer would like to keep it handy. I have upgraded the script bit more. I have included few additional information which I believe I should have added from the beginning. It is difficult to visualize the final script when we are writing it first time. I use every script which I write on this blog, the matter of the fact, I write only those scripts here which I was using at that time. It is quite possible that as time passes by my needs are changing and I change my script. Here is the updated script of this subject. If there are any user data types, it will list the same as well. SELECT s.name AS 'schema', ts.name AS TableName, c.name AS column_name, c.column_id, SCHEMA_NAME(t.schema_id) AS DatatypeSchema, t.name AS Datatypename ,t.is_user_defined, t.is_assembly_type ,c.is_nullable, c.max_length, c.PRECISION, c.scale FROM sys.columns AS c INNER JOIN sys.types AS t ON c.user_type_id=t.user_type_id INNER JOIN sys.tables ts ON ts.OBJECT_ID = c.OBJECT_ID INNER JOIN sys.schemas s ON s.schema_id = t.schema_id ORDER BY s.name, ts.name, c.column_id I would be very interested to see your script which lists all the columns of the database with data types. If I am missing something in my script, I will modify it based on your comment. This way this page will be a good bookmark for the future for all of us. Reference : Pinal Dave (http://blog.SQLAuthority.com) Filed under: PostADay, SQL, SQL Authority, SQL DMV, SQL Query, SQL Server, SQL System Table, SQL Tips and Tricks, T SQL, Technology

  Read the article

• Decal implementation

  - by dreta

  I had issues finding information about decals, so maybe this question will help others. The implementation is for a forward renderer. Could somebody confirm if i got decal implementation right? You define a cube of any dimension that'll define the projection volume in common space. You check for triangle intersection with the defined cube to recieve triangles that the projection will affect. You clip these triangles and save them. You then use matrix tricks to calculate UV coordinates for the saved triangles that'll reference the texture you're projecting. To do this you take the vectors representing height, width and depth of the cube in common space, so that f.e. the bottom left corner is the origin. You put that in a matrix as the i, j, k unit vectors, set the translation for the cube, then you inverse this matrix. You multiply the vertices of the saved triangles by this matrix, that way you get their coordinates inside of a 0 to 1 size cube that you use as the UV coordinates. This way you have the original triangles you're projecting onto and you have UV coordinates for them (the UV coordinates are referencing the texture you're projecting). Then you rerender the saved triangles onto the scene and they overwrite the area of projection with the projected image. Now the questions that i couldn't find answers for. Is the last point right? I've never done software clipping, but it seems error prone enough, due to limited precision, that the'll be some z fighting occuring for the projected texture. Also is the way of getting UV coordinates correct?

  Read the article

• Booting from a USB drive that was originally a boot drive

  - by daveh551

  When Win 7 went RTM, I upgraded my laptop from XP. But to protect myself against the possibility of having data inaccessible, I got a new disk and put it in the laptop, and took the old (XP) disk and put it in a USB enclosure. I have no trouble accessing the data on the USB drive under Windows 7. But I would like to be able to plug it in, tell the BIOS to boot from the USB drive, and be back on my old machine. The laptop is a Dell Precision M90, and it has a boot from USB option in its boot menu. But when I try to do that, it does read the drive, gets as far as putting up the Windows XP splash screen and starting the boot progress bar, and then reboots. What do I need to do to the old disk now running on USB to allow the machine to boot from it?

  Read the article

• Two virtual computers using one laptop?

  - by JP19

  Hi, I have a laptop and an external display. I am able to use the external display either as extended desktop OR duplicate desktop. I also use a separate keyboard and mouse. So effectively, the laptop acts just as a box without display. I want to know is it possible to use the laptop as 2 virtual PCs. (with separate control). I.E., one person uses the laptop as a laptop, and other person can simultaneously connect a keyboard and mouse and the external display and effectively get a second PC. OS I am using - windows (thought solution for other OSes are welcome). Laptop is a Dell Precision M6300. thanks JP

  Read the article

• How to Boost Your Mouse Pointing Accuracy in Windows

  - by The Geek

  Whether you are doing graphics/web design work or just taking screenshots, it’s often very difficult to move the mouse precisely enough to select pixels the way you’d like. Here’s a couple of ways to make it better. There’s a number of methods you can use, from configuring the default mouse settings, to enabling Mouse Keys to move the mouse pointer with the keyboard, or my favorite: Using the Precision Booster feature in IntelliPoint. Image by Rufus Latest Features How-To Geek ETC How to Use the Avira Rescue CD to Clean Your Infected PC The Complete List of iPad Tips, Tricks, and Tutorials Is Your Desktop Printer More Expensive Than Printing Services? 20 OS X Keyboard Shortcuts You Might Not Know HTG Explains: Which Linux File System Should You Choose? HTG Explains: Why Does Photo Paper Improve Print Quality? Ubuntu Font Family Now Available for Download Oh No! WikiLeaks Published Santa Claus’s Naughty List [Video] Remember the Milk Now Supports HTTPS Encryption for the Entire Session MTCrypt Is an Efficient Front End for Mounting TrueCrypt Volumes 10 Things You Should Do with Your New Android Phone Walking Through the Park on a Snowy Night Wallpaper

  Read the article

• Billboarding restricted to an axis (cylindrical)

  - by user8709

  I have succesfully created a GLSL shader for a billboarding effect. I want to tweak this to restrict the billboarding to an arbitrary axis, i.e. a billboarded quad only rotates itself about the y-axis. I use the y-axis as an example, but essentially I would like this to be an arbitrary axis. Can anyone show me how to modify my existing shader below, or if I need to start from scratch, point me towards some resources that could be helpful? precision mediump float; uniform mat4 u_modelViewProjectionMat; uniform mat4 u_modelMat; uniform mat4 u_viewTransposeMat; uniform vec3 u_axis; // <------------ !!! the arbitrary axis to restrict rotation around attribute vec3 a_position0; attribute vec2 a_texCoord0; varying vec2 v_texCoord0; void main() { vec3 pos = (a_position0.x * u_viewTransposeMat[0] + a_position0.y * u_viewTransposeMat[1]).xyz; vec4 position = vec4(pos, 1.0); v_texCoord0 = a_texCoord0; gl_Position = u_modelViewProjectionMat * position; }

  Read the article

• Winlogon.exe causes C++ runtime error

  - by Evan

  Recently I've become unable to log into my Dell Precision M2400. It uses the Dell Controlpoint login GUI instead of the typical windows one, and has now started giving me a runtime error on winlogon.exe that ends with a c000021a BSOD. I have tried running through safe mode and a restore to the last known good setting with no success. Unfortunately by BIOS password is locked and the one IT guy with the password is on vacation and unreachable until after I leave for a business trip. Is there anyway to bypass the Dell logon screen and get to the default windows one? Thanks.

  Read the article

• Unit Tests as a learning tool - a good idea?

  - by Ekkehard.Horner

  I'm interested in ways and means for learning (a) programming language(s) efficiently. I believe that using Unit Test concepts and infrastructure early in that process is a good thing, even better than starting with "Hello world". Why: To write a decent program even for a toy/restricted problem in a new language, you'll have to master many heterogenous concepts (control flow & variables & IO ...), you are tempted to glance over details just to get your program 'to work'. Putting (your understanding of) the facts about the new language in assertions with good descriptions (=success messages) enforces thinking thru/clearness/precision. Grouping topics and adding assertions to such groups is much easier than incorporation features from the 2. chapter of your "Learning X" book to your chapter 1 program. Why not: 'Real' Unit Tests are meant to output "1234 tests ok; 1 failure: saveWorld() chokes on negative input"; 'didactic' Unit Tests should output relevant facts about the new language like perl6 10-string.t # ### p5chop ... ok 13 - p5chop( "cbä" ) returns "ä" ok 14 - after that, victim is changed to "cb" # ### (p6) chop ... ok 27 - (p6) chop( "cbä" ) returns chopped copy: "cb" ok 18 - after that, victim is unchanged: "cbä" # ### chomp ... So (mis?)using Unit Tests may be counterproductive - practicing actions while learning you wouldn't use professionally. How: Writing 'didactic' Unit Tests in languages with lightweight testing systems (Perl 5/6) is easy; (mis?)using more elaborate systems (JUnit, CppUnit) may be not worth the effort or not suitable for a person just starting with a new language. So Is using Unit Tests as a learning tool a bad idea? Can the Unit Test tool(s) of your favourite language(s) used didactically? Should implementation details (eventually) be discussed here or over at stackoverflow.com?

  Read the article

• Building a new cluster for mathematical calculations (Win/Lin)

  - by Muhammad Farhan

  I would like to build a new cluster to perform heavy mathematical calculations in Matlab and Abaqus. One of my friend told me that distributed computing is way faster than parallel computing, which is very true after reading a bit on the internet. However, I have never clustered before. Current workstation I own: Dell Precision T5400 2 x Intel Xeon 2.5 GHz 16 GB RAM (2GB x 8) 1 x Western Digital 1TB HDD 7200 rpm 1 x nVidia Quadro FX4600 768MB GPU 1 x 870W PSU OS: Windows 7 Ultimate 64-bit 2nd WS: I can buy another WS similar configuration to the one I own I am not bothered about OS, I am willing to cluster with either Windows or Linux. However, my software are compatible with windows 64-bit only. Please help me setup a cluster. Thank you.

  Read the article

• How to select a server that supports Windows scheduled file IO

  - by Kristof Verbiest

  Background: I am developing an application that needs to read data from disk with a fairly consistent throughput. It is important that this throughput is not influenced by other actions that happen on the disk (e.g. by other processes). For this purpose, I was hoping to use the 'Scheduled File I/O' feature in Windows (throught the GetFileBandwithReservation and SetFileBandwithReservation functions). However, this StackOverflow question has thought me that this feature is only available if the device driver supports it. Currently I have no computer at my disposition that seems to support this feature (I have an HP Proliant server and a Dell Precision workstation). Question: If I were to order a new server, how can I know beforehand if this feature will be supported by the device driver? How 'upscale' does the server have to be? Has anybody used this feature with success and cares to share his experiences?

  Read the article

• How do I choose the scaling factor of a 3D game world?

  - by concept3d

  I am making a 3D tank game prototype with some physics simulation, am using C++. One of the decisions I need to make is the scale of the game world in relation to reality. For example, I could consider 1 in-game unit of measurement to correspond to 1 meter in reality. This feels intuitive, but I feel like I might be missing something. I can think of the following as potential problems: 3D modelling program compatibility. (?) Numerical accuracy. (Does this matter?) Especially at large scales, how games like Battlefield have huge maps: How don't they lose numerical accuracy if they use 1:1 mapping with real world scale, since floating point representation tend to lose more precision with larger numbers (e.g. with ray casting, physics simulation)? Gameplay. I don't want the movement of units to feel slow or fast while using almost real world values like -9.8 m/s^2 for gravity. (This might be subjective.) Is it ok to scale up/down imported assets or it's best fit with a world with its original scale? Rendering performance. Are large meshes with the same vertex count slower to render? I'm wondering if I should split this into multiple questions...

  Read the article

• 2D platformers: why make the physics dependent on the framerate?

  - by Archagon

  "Super Meat Boy" is a difficult platformer that recently came out for PC, requiring exceptional control and pixel-perfect jumping. The physics code in the game is dependent on the framerate, which is locked to 60fps; this means that if your computer can't run the game at full speed, the physics will go insane, causing (among other things) your character to run slower and fall through the ground. Furthermore, if vsync is off, the game runs extremely fast. Could those experienced with 2D game programming help explain why the game was coded this way? Wouldn't a physics loop running at a constant rate be a better solution? (Actually, I think a physics loop is used for parts of the game, since some of the entities continue to move normally regardless of the framerate. Your character, on the other hand, runs exactly [fps/60] as fast.) What bothers me about this implementation is the loss of abstraction between the game engine and the graphics rendering, which depends on system-specific things like the monitor, graphics card, and CPU. If, for whatever reason, your computer can't handle vsync, or can't run the game at exactly 60fps, it'll break spectacularly. Why should the rendering step in any way influence the physics calculations? (Most games nowadays would either slow down the game or skip frames.) On the other hand, I understand that old-school platformers on the NES and SNES depended on a fixed framerate for much of their control and physics. Why is this, and would it be possible to create a patformer in that vein without having the framerate dependency? Is there necessarily a loss of precision if you separate the graphics rendering from the rest of the engine? Thank you, and sorry if the question was confusing.

  Read the article

• Need help solving "Disk Error Press any key to restart" after blue screen in XP.

  - by Dennis

  I have had a couple of BSOD's lately and after the last one I got the disk error message. The disk shows up during the BIOS portion of the boot. It is in a Dell Precision 690 so the F12 key gives me a boot menu. I can boot from the utility partition, and if I specifically select the hard drive from the boot menu it will boot fine. Any ideas why if I just try to do an unattended boot, it give the error listed in the title?

  Read the article

• Why do the order of uniforms gets changed by the compiler?

  - by Aybe

  I have the following shader, everything works fine when setting the value of one of the matrices but I've discovered that getting a value back is incorrect for View and Projection, they are in reverse order. #version 430 precision highp float; layout (location = 0) uniform mat4 Model; layout (location = 1) uniform mat4 View; layout (location = 2) uniform mat4 Projection; layout (location = 0) in vec3 in_position; layout (location = 1) in vec4 in_color; out vec4 out_color; void main(void) { gl_Position = Projection * View * Model * vec4(in_position, 1.0); out_color = in_color; } When querying their location they are effectively reversed, I did a small test by renaming View to Piew which puts it before Projection if sorted alphabetically and the order is correct. Now if I do remove layout (location = ...) from the uniforms, the problem disappears !? I am starting to think that this is a driver bug as explained in the wiki. Do you know why the order of the uniforms is changed whenever the shader is compiled ? (using an AMD HD7850)

  Read the article

• Five Ideas: Project Management

  - by Sylvie MacKenzie, PMP

   Except from Profit Magazine “For everyone to put on the project manager hat and standardize the way every single thing is done means that now the whole organization is on the same page as to what needs to occur from the time a hurricane hits Haiti and when a boat pulls in to unload supplies.” —Rich D’Addario, consulting project manager in the Primavera Global Business Unit at Oracle, on helping AmeriCares deliver aid to Haiti “Primavera P6 Analytics generates information that can help organizations improve their utilization and trim down overall operating costs. But more importantly, it gives organizations improved visibility.” —Yasser Mahmud, vice president of product strategy and industry marketing in Oracle’s Primavera Global Business Unit “Organizations are constantly looking for ways to improve the speed and precision of their decisions and work without creating environments and systems that limit their personnel through rigid structures and inflexible processes. The latest release of Primavera Portfolio Management meets this demand by further streamlining processes and supporting enhanced decision-making, helping drive better value from portfolios. In addition, the new UI clearly demonstrates Oracle's commitment to providing a seamlessly integrated enterprise project portfolio management product suite.” —Mike Sicilia, senior vice president, Oracle's Primavera “Make it a business project, not an IT project. All levels of functional management must have ownership, responsibility, and accountability for the success of the implementation.” —from Eaton Operations Services Manager Marcos Baccetto's 9 Project Management Tips “AEC firms must strategically pursue standardization opportunities in the project management area while preserving the spirit of entrepreneurism and flexibility at an individual project manager level. An enterprise technology platform doesn't only help with standardization of key project management processes across the enterprise; it also improves performance management, team collaboration and client specific reporting at an individual project level.” —Maneesh Chhabra is a director of Industry Strategy and Insight at Oracle

  Read the article

• Oracle Supply Chain at Pella Showcase, April 24-25, 2012

  - by Stephen Slade

  Nothing promtes a product like a grest customer testimony! For nearly a decade, Pella has been holding these 'open-houses' or Showcases as they are called, to illustrate the utilization of Oracle products in their operations. Building custom windows and doors is not an easy task.  With about a trillion combinations of unique sizes, colors and features availalbe, getting the complex multi-unit custom order wrong can be easy to do. I've been to a few of these Showcases and each time,  continually impressed by the precision, best practices and lean disciplines enacted at Pella. Operations representatives and users at Pella, demonstrate the way in which they use Oracle Supply Chain products to deliver fulfillment excellence. Orders are all custom made and delivered in about a week.  Factory tours are conducted and visitors have a chance to see Oracle in operation on the shop floor, driving informational flow and order accuracy in the 99+% range.  It's a must see for anyone considering expansion of their supply chain footprint.  The event is April 24-25 in Pella Iowa, outside Des Moines.   This year, there is a seperate track for CIOs and executives. Register at 1.800.820.5592  - ask for event 10281

  Read the article

• configure time sync for azure VMs

  - by Pharao2k

  I have several ExtraSmall-sized Azure VMs (PaaS / Cloud Service based) that are all experiencing drifting of the Windows clock. Research showed that this is quite common, especially in VMs with shared cores. Unfortunately even after configuring the w32time service to sync with time.windows.com and forcing a resync (w32tm /resync), there seems to be a time difference of 2 seconds to the configured NTP server. Though Microsoft states that w32tm is not meant as a high-precision sync tool, a difference of 2 seconds is (IMO) quite a lot for server-activities/processing. What does one have to do to get more accurate time sync?

  Read the article

• Efficient mapping layout in 2D side-scroller, and collisions between character and the world

  - by Jack

  I haven't touched Visual Studio for a couple months now, but I was playing a game from the '90s toady and had an epiphany: I was looking for something what i didn't need, and I wasn't using what I knew correctly. One of those realizations was collision, so let me tell you a bit about my project that I was working on. The project's graphics looks like Mario or Dangerous Dave, etc., you get the idea - old-school pixels. So anyway I remember trying to think of something else than AABB for character form, but I couldn't think of anything. Perhaps I could get a suggestion for this? Another thing is the world - I don't want it to be just linear world, I want mountains, etc.. My idea is to use triangles, and no idea yet what to do if I want just part of the cube, say 3/4 or 2/4 or whatever. Hard-coding such things seems inefficient. P.S. I am not looking at the precision level offered by Box2D. Actually I remember trying to implement it at first, but I failed as my understanding of C++ wasn't advanced enough, as it'll be mentioned below. P.P.S. I am programming in C++, and I haven't done it for a couple months now. I have no means of testing it either, as my PC is broken down, and this one can barely run games from late '90s, not to speak about a compiler or a program with inefficient resource management... I am also not an expert (obviously), I don't even know if I can consider myself an average programmer. In short, I am simply curious about my thoughts and my past experience when programming the game. I may come back to it when my PC is fixed, I'm already filling a note about these things.

  Read the article

• Can't get Wireless to work! (Fujitsu siemens ESPRIMO Mobile u9200) Ubuntu 12.4

  - by Martin Oscarsson

  I can't get wireless to work on my computer. I have recently installed 12.04. Computer name: (Fujitsu siemens ESPRIMO Mobile u9200) Hardware button starts bluetooth - so can't start that way. Have searched the Internet for help but can't find any on my specific problem! State: connected (global) - Device: wlan0 ---------------------------------------------------------------- Type: 802.11 WiFi Driver: ath5k State: disconnected Default: no *-network beskrivning: Trådlöst gränssnitt produkt: AR242x / AR542x Wireless Network Adapter (PCI-Express) tillverkare: Atheros Communications Inc. *-network beskrivning: Ethernet interface produkt: 88E8055 PCI-E Gigabit Ethernet Controller tillverkare: Marvell Technology Group Ltd. HERE IS ALL THE NETWORK INFO: ellika@ellikas:~$ ifconfig eth0 Link encap:Ethernet HWaddr 00:1e:33:00:96:9a inet addr:192.168.1.26 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::21e:33ff:fe00:969a/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:13778 errors:0 dropped:0 overruns:0 frame:0 TX packets:9510 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:14022669 (14.0 MB) TX bytes:1001621 (1.0 MB) Interrupt:17 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:1542 errors:0 dropped:0 overruns:0 frame:0 TX packets:1542 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:125040 (125.0 KB) TX bytes:125040 (125.0 KB) ellika@ellikas:~$ sudo ifconfig [sudo] password for ellika: eth0 Link encap:Ethernet HWaddr 00:1e:33:00:96:9a inet addr:192.168.1.26 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::21e:33ff:fe00:969a/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:13801 errors:0 dropped:0 overruns:0 frame:0 TX packets:9528 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:14024965 (14.0 MB) TX bytes:1002836 (1.0 MB) Interrupt:17 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:1542 errors:0 dropped:0 overruns:0 frame:0 TX packets:1542 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:125040 (125.0 KB) TX bytes:125040 (125.0 KB) ellika@ellikas:~$ sudo ifconfig wlan0 up SIOCSIFFLAGS: Operationen inte möjlig p.g.a. RF-kill ellika@ellikas:~$ phy0 Wireless LAN phy0: command not found ellika@ellikas:~$ rfkill Usage: rfkill [options] command Options: --version show version (0.4-1ubuntu2 (Ubuntu)) Commands: help event list [IDENTIFIER] block IDENTIFIER unblock IDENTIFIER where IDENTIFIER is the index no. of an rfkill switch or one of: <idx> all wifi wlan bluetooth uwb ultrawideband wimax wwan gps fm ellika@ellikas:~$ sudo rf-kill unblock all sudo: rf-kill: kommandot hittades inte ellika@ellikas:~$ sudo rfkill unblock all ellika@ellikas:~$ sedan sudo ifconfig wlan0 sedan: command not found ellika@ellikas:~$ sudo ifconfig wlan0 wlan0 Link encap:Ethernet HWaddr 00:22:5f:3f:63:76 BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) ellika@ellikas:~$ ^C ellika@ellikas:~$ ^C ellika@ellikas:~$ sudo rfkill unblock all ellika@ellikas:~$ sudo ifconfig wlan0 up SIOCSIFFLAGS: Operationen inte möjlig p.g.a. RF-kill ellika@ellikas:~$ sudo rfkill unblock all ellika@ellikas:~$ sudo rfkill list 0: phy0: Wireless LAN Soft blocked: no Hard blocked: yes ellika@ellikas:~$ sudo rfkill unblock all ellika@ellikas:~$ echo -e "sudo lshw --class network:\n\n$(sudo lshw -c network)\n\nlspci -nnn | grep Ethernet:\n\n$(lspci -nnn | grep Ethernet)\n\nlsusb:\n\n$(lsusb)\n\niwlist wlan0 scanning:\n\n$(iwlist wlan0 scanning)\n\nrfkill list:\n\n$(rfkill list)\n\nping -c 5 google.com:\n\n$(ping -c 5 google.com)\n\nhost google.com 8.8.8.8:\n\n$(host google.com 8.8.8.8)\n\nlsb_release -a:\n\n$(lsb_release -a)\n\nuname -a:\n\n$(uname -a)" ^[[C^[[C^[[C^[[C^[[C^[[B wlan0 Failed to read scan data : Network is down No LSB modules are available. sudo lshw --class network: *-network beskrivning: Ethernet interface produkt: 88E8055 PCI-E Gigabit Ethernet Controller tillverkare: Marvell Technology Group Ltd. physical id: 0 bus info: pci@0000:04:00.0 logiskt namn: eth0 version: 14 serienummer: 00:1e:33:00:96:9a storlek: 100Mbit/s kapacitet: 1Gbit/s bredd: 64 bits klocka: 33MHz förmågor: pm vpd msi pciexpress bus_master cap_list rom ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation konfiguration: autonegotiation=on broadcast=yes driver=sky2 driverversion=1.30 duplex=full firmware=N/A ip=192.168.1.26 latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s resurser: irq:44 memory:f8000000-f8003fff ioport:3000(storlek=256) memory:f2000000-f201ffff *-network INAKTIVERAD beskrivning: Trådlöst gränssnitt produkt: AR242x / AR542x Wireless Network Adapter (PCI-Express) tillverkare: Atheros Communications Inc. physical id: 0 bus info: pci@0000:06:00.0 logiskt namn: wlan0 version: 04 serienummer: 00:22:5f:3f:63:76 bredd: 64 bits klocka: 33MHz förmågor: pm msi pciexpress msix bus_master cap_list ethernet physical wireless konfiguration: broadcast=yes driver=ath5k driverversion=3.2.0-30-generic-pae firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11bg resurser: irq:18 memory:fa000000-fa00ffff lspci -nnn | grep Ethernet: 04:00.0 Ethernet controller [0200]: Marvell Technology Group Ltd. 88E8055 PCI-E Gigabit Ethernet Controller [11ab:4363] (rev 14) 06:00.0 Ethernet controller [0200]: Atheros Communications Inc. AR242x / AR542x Wireless Network Adapter (PCI-Express) [168c:001c] (rev 04) lsusb: Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 002: ID 05e3:0715 Genesys Logic, Inc. USB 2.0 microSD Reader Bus 001 Device 003: ID 05c8:0103 Cheng Uei Precision Industry Co., Ltd (Foxlink) FO13FF-65 PC-CAM iwlist wlan0 scanning: rfkill list: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: yes ping -c 5 google.com: PING google.com (173.194.32.34) 56(84) bytes of data. 64 bytes from arn06s02-in-f2.1e100.net (173.194.32.34): icmp_req=1 ttl=55 time=10.6 ms 64 bytes from arn06s02-in-f2.1e100.net (173.194.32.34): icmp_req=2 ttl=55 time=10.5 ms 64 bytes from arn06s02-in-f2.1e100.net (173.194.32.34): icmp_req=3 ttl=55 time=10.4 ms 64 bytes from arn06s02-in-f2.1e100.net (173.194.32.34): icmp_req=4 ttl=55 time=10.4 ms 64 bytes from arn06s02-in-f2.1e100.net (173.194.32.34): icmp_req=5 ttl=55 time=10.4 ms --- google.com ping statistics --- 5 packets transmitted, 5 received, 0% packet loss, time 4004ms rtt min/avg/max/mdev = 10.451/10.517/10.631/0.062 ms host google.com 8.8.8.8: Using domain server: Name: 8.8.8.8 Address: 8.8.8.8#53 Aliases: google.com has address 173.194.32.36 google.com has address 173.194.32.38 google.com has address 173.194.32.41 google.com has address 173.194.32.37 google.com has address 173.194.32.35 google.com has address 173.194.32.39 google.com has address 173.194.32.33 google.com has address 173.194.32.34 google.com has address 173.194.32.46 google.com has address 173.194.32.32 google.com has address 173.194.32.40 google.com has IPv6 address 2a00:1450:400f:801::100e google.com mail is handled by 40 alt3.aspmx.l.google.com. google.com mail is handled by 20 alt1.aspmx.l.google.com. google.com mail is handled by 30 alt2.aspmx.l.google.com. google.com mail is handled by 50 alt4.aspmx.l.google.com. google.com mail is handled by 10 aspmx.l.google.com. lsb_release -a: Distributor ID: Ubuntu Description: Ubuntu 12.04.1 LTS Release: 12.04 Codename: precise uname -a: Linux ellikas 3.2.0-30-generic-pae #48-Ubuntu SMP Fri Aug 24 17:14:09 UTC 2012 i686 i686 i386 GNU/Linux ellika@ellikas:~$ ellika@ellikas:~$ clear ellika@ellikas:~$ echo -e "sudo lshw --class network:\n\n$(sudo lshw -c network)\n\nlspci -nnn | grep Ethernet:\n\n$(lspci -nnn | grep Ethernet)\n\nlsusb:\n\n$(lsusb)\n\niwlist wlan0 scanning:\n\n$(iwlist wlan0 scanning)\n\nrfkill list:\n\n$(rfkill list)\n\nping -c 5 google.com:\n\n$(ping -c 5 google.com)\n\nhost google.com 8.8.8.8:\n\n$(host google.com 8.8.8.8)\n\nlsb_release -a:\n\n$(lsb_release -a)\n\nuname -a:\n\n$(uname -a)" wlan0 Failed to read scan data : Network is down No LSB modules are available. sudo lshw --class network: *-network beskrivning: Ethernet interface produkt: 88E8055 PCI-E Gigabit Ethernet Controller tillverkare: Marvell Technology Group Ltd. physical id: 0 bus info: pci@0000:04:00.0 logiskt namn: eth0 version: 14 serienummer: 00:1e:33:00:96:9a storlek: 100Mbit/s kapacitet: 1Gbit/s bredd: 64 bits klocka: 33MHz förmågor: pm vpd msi pciexpress bus_master cap_list rom ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation konfiguration: autonegotiation=on broadcast=yes driver=sky2 driverversion=1.30 duplex=full firmware=N/A ip=192.168.1.26 latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s resurser: irq:44 memory:f8000000-f8003fff ioport:3000(storlek=256) memory:f2000000-f201ffff *-network INAKTIVERAD beskrivning: Trådlöst gränssnitt produkt: AR242x / AR542x Wireless Network Adapter (PCI-Express) tillverkare: Atheros Communications Inc. physical id: 0 bus info: pci@0000:06:00.0 logiskt namn: wlan0 version: 04 serienummer: 00:22:5f:3f:63:76 bredd: 64 bits klocka: 33MHz förmågor: pm msi pciexpress msix bus_master cap_list ethernet physical wireless konfiguration: broadcast=yes driver=ath5k driverversion=3.2.0-30-generic-pae firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11bg resurser: irq:18 memory:fa000000-fa00ffff lspci -nnn | grep Ethernet: 04:00.0 Ethernet controller [0200]: Marvell Technology Group Ltd. 88E8055 PCI-E Gigabit Ethernet Controller [11ab:4363] (rev 14) 06:00.0 Ethernet controller [0200]: Atheros Communications Inc. AR242x / AR542x Wireless Network Adapter (PCI-Express) [168c:001c] (rev 04) lsusb: Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 002: ID 05e3:0715 Genesys Logic, Inc. USB 2.0 microSD Reader Bus 001 Device 003: ID 05c8:0103 Cheng Uei Precision Industry Co., Ltd (Foxlink) FO13FF-65 PC-CAM iwlist wlan0 scanning: rfkill list: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: yes ping -c 5 google.com: PING google.com (173.194.32.34) 56(84) bytes of data. 64 bytes from arn06s02-in-f2.1e100.net (173.194.32.34): icmp_req=1 ttl=55 time=10.6 ms 64 bytes from arn06s02-in-f2.1e100.net (173.194.32.34): icmp_req=2 ttl=55 time=10.5 ms 64 bytes from arn06s02-in-f2.1e100.net (173.194.32.34): icmp_req=3 ttl=55 time=10.4 ms 64 bytes from arn06s02-in-f2.1e100.net (173.194.32.34): icmp_req=4 ttl=55 time=10.4 ms 64 bytes from arn06s02-in-f2.1e100.net (173.194.32.34): icmp_req=5 ttl=55 time=10.5 ms --- google.com ping statistics --- 5 packets transmitted, 5 received, 0% packet loss, time 4004ms rtt min/avg/max/mdev = 10.476/10.522/10.602/0.045 ms host google.com 8.8.8.8: Using domain server: Name: 8.8.8.8 Address: 8.8.8.8#53 Aliases: google.com has address 173.194.32.36 google.com has address 173.194.32.38 google.com has address 173.194.32.41 google.com has address 173.194.32.37 google.com has address 173.194.32.35 google.com has address 173.194.32.39 google.com has address 173.194.32.33 google.com has address 173.194.32.34 google.com has address 173.194.32.46 google.com has address 173.194.32.32 google.com has address 173.194.32.40 google.com has IPv6 address 2a00:1450:400f:801::100e google.com mail is handled by 40 alt3.aspmx.l.google.com. google.com mail is handled by 20 alt1.aspmx.l.google.com. google.com mail is handled by 30 alt2.aspmx.l.google.com. google.com mail is handled by 50 alt4.aspmx.l.google.com. google.com mail is handled by 10 aspmx.l.google.com. lsb_release -a: Distributor ID: Ubuntu Description: Ubuntu 12.04.1 LTS Release: 12.04 Codename: precise uname -a: Linux ellikas 3.2.0-30-generic-pae #48-Ubuntu SMP Fri Aug 24 17:14:09 UTC 2012 i686 i686 i386 GNU/Linux

  Read the article

• What is the best way to check if there is overlap between player and static, non-collidable items in bullet physic engine

  - by tigrou

  I'd like to add non collidable objects (eg: power ups, items, ...) in a game world using Bullet Physics Engine and to know if there is collision between player and them. Some info : there is a lot of items ( 1000), all are box shapes and they don't overlap. Here is things i have tried : btDbvt* bvtItems = new btDbvt(); //btDbvt is a hierachical AABB tree, used by Bullet foreach(var item ...) { btDbvtVolume volume = ... //compute item AABB; bvtItems->insert(volume, (void*)someExtraData); } Then, to find collisions between items and player : playerRigidBody->getAabb(min, max); btDbvtVolume playervolume = ... //compute player AABB bvtItems->collideTV(bvtItems->m_root, playervolume, *someCollisionHandler); This works fairly well (and its very fast), however, there is a problem : it only check items AABB against player AABB. That loss of precision is acceptable for items but not for player which is not a box. It would actually need another check to make sure player really collide with item but i don't know how to do this in Bullet. It would have been nice to have a function like this : playerRigidBody->checkCollisionWithAABB(); After doing trying that, I discovered that a btGhostObject exist and seems to have been made for that. I changed my code like this : foreach(var item...) { btCollisionObject* ghostObject = new btGhostObject(); ghostObject->setCollisionShape(boxShape); ghostObject->setCollisionFlags(ghostObject->getCollisionFlags() | btCollisionObject::CF_NO_CONTACT_RESPONSE); startTransform.setOrigin(...); //item position ghostObject->setWorldTransform(startTransform); dynamicsWorld->addCollisionObject(ghostObject, btBroadphaseProxy::SensorTrigger, btBroadphaseProxy:: CharacterFilter); } It also works ok, but there is a huge fps drop (almost ten times slower) which is not acceptable. Maybe there is something missing (forget set a flag) and Bullet is doing extra job for nothing or maybe all that ghostObjects are polluting broad phase and ghostObject is not the right thing for that. Any help would be appreciated.

  Read the article

• High Performance SQL Views Using WITH(NOLOCK)

  - by gt0084e1

  Every now and then you find a simple way to make everything much faster. We often find customers creating data warehouses or OLAP cubes even though they have a relatively small amount of data (a few gigs) compared to their server memory. If you have more server memory than the size of your database or working set, nearly any aggregate query should run in a second or less. In some situations there may be high traffic on from the transactional application and SQL server may wait for several other queries to run before giving you your results. The purpose of this is make sure you don’t get two versions of the truth. In an ATM system, you want to give the bank balance after the withdrawal, not before or you may get a very unhappy customer. So by default databases are rightly very conservative about this kind of thing. Unfortunately this split-second precision comes at a cost. The performance of the query may not be acceptable by today’s standards because the database has to maintain locks on the server. Fortunately, SQL Server gives you a simple way to ask for the current version of the data without the pending transactions. To better facilitate reporting, you can create a view that includes these directives. CREATE VIEW CategoriesAndProducts AS SELECT * FROM dbo.Categories WITH(NOLOCK) INNER JOIN dbo.Products WITH(NOLOCK) ON dbo.Categories.CategoryID = dbo.Products.CategoryID In some cases quires that are taking minutes end up taking seconds. Much easier than moving the data to a separate database and it’s still pretty much real time give or take a few milliseconds. You’ve been warned not to use this for bank balances though. More from Data Stream

  Read the article

• OpenGL ES rotate texture

  - by 0xSina

  I just got started with OpenGL ES... I have a fragment: const char * sFragment = _STRINGIFY( varying highp vec2 coordinate; precision mediump float; uniform vec4 maskC; uniform float threshold; uniform sampler2D videoframe; uniform sampler2D videosprite; uniform vec4 mask; uniform vec4 maskB; uniform int recording; vec3 normalize(vec3 color, float meanr) { return color*vec3(0.75 + meanr, 1., 1. - meanr); } void main() { float d; float dB; float dC; float meanr; float meanrB; float meanrC; float minD; vec4 pixelColor; vec4 spriteColor; pixelColor = texture2D(videoframe, coordinate); spriteColor = texture2D(videosprite, coordinate); meanr = (pixelColor.r + mask.r)/8.; meanrB = (pixelColor.r + maskB.r)/8.; meanrC = (pixelColor.r + maskC.r)/8.; d = distance(normalize(pixelColor.rgb, meanr), normalize(mask.rgb, meanr)); dB = distance(normalize(pixelColor.rgb, meanrB), normalize(maskB.rgb, meanrB)); dC = distance(normalize(pixelColor.rgb, meanrC), normalize(maskC.rgb, meanrC)); minD = min(d, dB); minD = min(minD, dC); gl_FragColor = spriteColor; if (minD > threshold) { gl_FragColor = pixelColor; } } Now, depending on wether recording is 0 or 1, I want to rotate uniform sampler2D videosprite 180 degrees (reflection in x-axis, flip vertically). How can I do that? I found the function glRotatef(), but how do i specify that I want to rotate video sprite and not videoframe? Thanks

  Read the article

• My KDE very slow in certain operations

  - by Pietro

  I have a problem with my Linux installation. It seems that the KDE code that deals with directory windows is extremely slow (on both Dolphin and Konqueror). This happens both when I click on a directory icon and when I want to open/save a file from many KDE applications. The time the window takes to open can be one minute or more. The same happens when I right click on an icon. Looking at the CPU usage, this is very low (less than 10%). Am I the only one with this problem, or is it well known and maybe already fixed? Consider that I cannot update to a more recent version of OpenSuse. Thank you, Pietro Configuration: Linux version: OpenSuse 11.4 KDE 4.6.0 System: DELL Precision T3500 - Intel Xeon Home directory mounted on a remote drive. <-- could this be the reason?

  Read the article

• Make SoX not show output

  - by Ram Rachum

  I'm recording with SoX, and I want to make it not show output at all. When recording, it shows this output: Input File : 'default' (waveaudio) Channels : 2 Sample Rate : 48000 Precision : 16-bit Sample Encoding: 16-bit Signed Integer PCM In:0.00% 00:00:00.68 [00:00:00.00] Out:28.7k [ | ] Clip:0 I tried setting verbosity to 0, but it has no effect. (I'm guessing it's meant for messages other than this.) I don't just want to hide the output, which I could do easily; I want SoX to not generate it in the first place, for performance on a weak computer.

  Read the article

< Previous Page | 33 34 35 36 37 38 39 40 41 42 43 44  | Next Page >