Friday, April 24, 2015

Just few months and Windows 10 along with new DirectX 12 will be available for public propose, AMD is excited to announce some of the DirectX 12 features with an interesting improvements over precedent versions.

The new DirectX 12 will be up to 45% faster than DirectX 11 according to previous news, with Async-Shaders technology and Multi-Threaded Command Buffer Recording allowing smoother real time gaming performance with the uses of all CPU cores simultaneous, AMD report about Async-Shaders technology that it “allow usage of a game engine to execute GPU compute or memory activities during “gaps” in the graphics workload presented by a game.” the past versions just allow one line for executing between GPU and CPU to execute graphics rendering operations:

“In DirectX 12 Async Shaders supercharge work completion in a compatible AMD Radeon GPU by interleaving these tasks across multiple threads to shorten overall render time. Async Shaders are materially important to a PC gamer’s experience because shorter rendering times reduce graphics pipeline latency, and lower latency equals greater performance. “Performance” can mean higher framerates in gameplay and better responsiveness in VR environments. Further, finer levels of granularity in breaking up the workload can yield even greater reductions in work time.”

DX12 Multi-Threaded Command Buffer Recording features:
  • Overhead is significantly reduced by moving driver and API code to any available CPU thread
  • The absolute time required to complete complex CPU tasks is notably reduced
  • Game workloads can be meaningfully distributed across >4 CPU cores
  • New “bandwidth” on the CPU allows for higher peak draw calls, enabling more detailed and immersive game worlds
  • All available CPU cores may now “talk” to the graphics card simultaneously


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DirectX 12 Vs DirectX 11 a real Multi-Threaded API !

Friday, April 17, 2015

Amazing ! Crytek is back with the new Cryengine demonstrating an outstanding VR support for the next CryEngine with a spectacular graphics quality shown at GDC 2015, the problem is that if this goes out to the public, many heart attacks and Seizures will occurs ! Check it out:







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Cryengine 2015 is back with Real-VR demo back to the Dinosaurs for PC and New-Gen

Thursday, April 16, 2015

Hello, today we're going to do some DB server tutorial, by fixing a mysql performance problem, lot of questions about getting "too many connections" error when doing database backup using mysqldump command line, and guess what, you won't get the problem fix by increasing the connection number in my.cnf, because simply that's not the problem, it's caused by table locking of mysqldump when running, so all your applications and website will goes down.

Example of mysqldump command: 
mysqldump -u root -p'password' database > /home/backup.sql
So to fix this problem you need to access the mysql server configuration file "my.cnf" located in "/etc" using ssh vi command or ftp, then add the bellow codes then save it:

# THIS TO STOP TABLE LOCKING WHEN BACKUP DB USING MYSQLDUMP :
[mysqldump]
skip-opt
quick
single-transaction
skip-add-locks
extended-insert

Now restart your mysql server (using "service mysqld restart").

That's it now try to run your mysqldump and see the result, you'll notice a fast backup with no locking errors.

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Fix table locking problem when mysqldump database with too many connections error

Thursday, April 9, 2015

AMD's new generation of graphic cards AKA Radeon R9 300 series is very close to the markets, here is the first hands on the flag-ship Radeon R9 390 graphic cards with some pictures leaked today on a Chinese forum.

The pictures show the Radeon R9 390 with two big fans and only one PCIe size to install this flag-ship graphic card which is unexpected from a high-end GPU, also the R9 390 require less power with only 8pins+6pins PCIe power connectors (300W max TDP).

Leaked pictures:



The AMD Radeon R9 390 is based on the Fiji PRO die graphic core technology (while the 390X will be based on the Fiji XT GPU) offering the new HBM (3D based chip) reported as 9 times faster than the GDDR5 bandwidth and this is considered as a new era in GPUs performance, bellow full specifications of the Radeon R9 390 with 640GB/s bandwidth and up to 8GB VRAM for only 599$.

HBM memory (3D based chip)
AMD Radeon R9 390/X Expected specifications Vs competitors:

AMD Radeon R9 390AMD Radeon R9 390XNVIDIA GeForce GTX Titan XAMD Radeon R9 290XNVIDIA GeForce GTX 980
GPU ArchitectureGCN 1.3GCN 1.3MaxwellGCN 1.2Maxwell
GPU NameFiji Pro?Fiji XT?GM200Hawaii XTGM204
Die Size~550mm2~550mm2~600mm2438mm2398mm2
Process28nm28nm28nm28nm28nm
Cores38404096307228162048
VRAM4 GB / 8 GB HBM4 GB / 8 GB HBM12GB GDDR54 GB GDDR54 GB GDDR5
Memory Bus4096-bit (1024-bit per stack)4096-bit (1024-bit per stack)384-bit512-bit256-bit
Memory Clock1250 MHz1250 MHz7.0 Ghz5.0 GHz7.0 GHz
Memory Bandwidth640 GB /s640 GB /s336.0 GB/s320.0 GB/s224.0 GB/s
TDP250-300W250-300W250W290W165W
Power Connectors8+6 Pin8+8 Pin?8+6 Pin8+6 PinTwo 6-Pin
Launch Price$599 US?$699 US?$999  US?$549 US$549 US

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Radeon R9 390 pictures and specifications with HBM technology (3D based chip)

Wednesday, April 8, 2015

If you are looking for a HTPC or mini ATX case computer for mid-gaming propose then you might need this graphic card from Colorful, the Nvidia based GTX 960 will come with a small factor form for ITX and mATX cases.

Colorful GTX960 Mini Pictures:


Features and specifications:

Thanks to the small components and new GPU die size in addition to the good PCB design, Colorful iGame GTX960 2GD5 BURI-Mini features a special cooler system, with two 8mm and one 6mm heat-pipes and a big fan. 5 phases VRM, for all POSCAP capacitors, like the other iGame series cards,the GTX960 2GD5 BURI-Mini runs at 1127/7010MHz, when in performance efficiency mode, the clock go down to 1152/7010MHz.

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Colorful GTX960 2GD5 BURI-Mini GPU specifications and picture

Tuesday, April 7, 2015

Hello guys and welcome to this new Android tutorial, today I'm going to guide you on how to install Android 4 Custom ROM into your NEXTBOOK NEXT7P12 Wifi tablet, so in case you have a boot problem error like mine or you want to install a faster custom ROM instead of the official, follow this tutorial.

First thing first make sure you have the same reference as the ROM on this article which is "NEXT7P12
", you can find it on the back of the tablet.
What you need:
  • SD card.
  • Computer.
  • SDcard reader.
  • A working brain :)
Steps:
  • First download the TWRP recovery and the costume ROM.
  • Then copy the zip ROM file to your SD card root.
  • And extract the "uImage_recovery" to the root of the sdcard.
  • Now make sure your NextBook tablet is charged and off.
  • insert the sdcard to the tablet and boot to the upgrade mode using "vol- and power" buttons.
  • Now the TWRP recovery will load.
  • Go to install, chose the ROM zip file and silde to start flashing.
  • After flash completed, wipe cache and dalvik cache.
  • Reboot !
That's it, now your tablet must boot to the new ROM.
If you have touch lag problem on the TWRP recovery please try the 4G version of the recovery from here.
ROM and files are courtesy of freaktab forum.

And as always, I'm here for any help just leave a comment.
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How to flash NEXTBOOK NEXT7P12 install Android ROM and Fix boot problem

Tuesday, March 24, 2015

Few weeks after the release of the Samsung Galaxy S6, here is the first tutorial demonstrating a full device disassemble to change most of the internal components, the operation is pretty hard as expected due to the new housing design of the Galaxy S6, so it deserve a detailed video tutorial.

So if you want to change the battery, screen, motherboard or any other component, check and bookmark, this tutorial.

Only do this if you are experienced has all the tools.



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How to disassemble/open the Samsung Galaxy S6 repair and change screen/battery tutorial

 
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