IT이야기2023. 7. 7. 10:23

리눅스에서 게임은 생각도 못할때가 있었는데, 그래도 돈많고 software 인력이 더 많은 NVidia가 쬐금 더 낫은 적이 좀 있었던것 같은데, 요즘 서치해 보면 리눅스 사용자들 사이에서는 AMD가 더 많이 선호되고 있어서 깜짝 놀랐음.

* Linux gaming reddit
https://www.reddit.com/r/linux_gaming/comments/149903d/known_alternatives_to_linux_gaming_on_reddit/
* Reddit에서 넘어간 사람들이 말하는 AMD로 linux에서 gaming
https://lemmy.world/post/1086446
* Linux gaming wiki, GPU section
 https://linux-gaming.kwindu.eu/index.php?title=Hardware_Recommendations#GPUs

AMD GPU하나 들여야 하나...

 

Posted by 쁘레드
IT이야기2019. 8. 13. 11:55

아 된장. NVidia 이놈들....

완전 이상해졌네...

FFMPEG자동화 한다고 NVidia HW좀 이용하볼라니까 뭔 드라이버 버전이 낮다고 해서 시작한 뻘짓이...

 

430.40이 최신버전인데 최신버전 설치하다가 X Server가 완전 맛갔다. 예전에도 최신버전깔으려다가 겨우겨우 이 사이트에서 하라는 대로 하니까 돌아왔는데... 이번엔 확실히 한다고 390 싹 다지우고 깔았더니 완전....

--------------------

https://www.mvps.net/docs/install-nvidia-drivers-ubuntu-18-04-lts-bionic-beaver-linux/

 

How to install NVIDIA drivers on Ubuntu 18.04 LTS Bionic Beaver Linux

This tutorial will help users that want to install drivers for their NVIDIA GPU...

www.mvps.net

sudo apt-get purge nvidia*
sudo add-apt-repository ppa:graphics-drivers
sudo apt-get update
sudo apt-get install nvidia-390
sudo reboot

--------------------

최신버전 설치하려고 홈페이지까지 들어가서 현재 그래픽카드랑 호환되는지도 체크해보고, 최신것으로 받았는데. Installer같은것을 받게해주는데,

111258448 Aug 12 19:00 NVIDIA-Linux-x86_64-430.40.run

설치해도 뭐 안되고, dmesg에 딱히 error도 없고.

--------------------

http://us.download.nvidia.com/XFree86/Linux-x86_64/430.40/README/installdriver.html

NVidia그래도 많이 좋아졌다는데도 아직도 문서도 그지같고. 불친절하기 그지없다.

Posted by 쁘레드
IT이야기2016. 8. 9. 15:06

저는 게임을 자주 하지 않지만 lightroom/photoshop, 오디오편집, 비디오편집은 자주하는 편입니다. hw acceleration(GPU)를 쓰면 확실히 리스폰스나 rendering시간이 줄어들어서 좋은 비디오카드가 선택하는 것이 필요하지요. 업그레이드를 고려하고 있는데 상당히 갈등중입니다. 아무래도 desktop이 같은 값이면 빠르지요. 그런데 항상 집에서만 해야하니까 빠른게 별다른 의미가 없어집니다. 잘때 걸어놓고 자면 되니까요.


노트북의 장점은 들고 회사에 가서 좀하다가 걸어놓으면 된다는 점도 있습니다. 속도는 반으로 줄지만 이동성이 좋아서 아웃풋을 공유하게되면 더 빨리할수도 있을것 같습니다. desktop은 집에와서 올리던지 해야하니까요.

--------------------

비슷한 가격대에 시스템을 비교해보면 그래픽 카드로는 nVidia Geforce GTX 980m과 GTX 1070으로 비교가 됩니다. 게임을 거의 안한다는 가정에서는 노트북이 맞는것 같지만 새로나온 재품이 땡기기도 합니다.

비디오카드 벤치마크를 보면. http://www.videocardbenchmark.net/


--------------------

CUDA programming까지 생각한다면 AMD Radeon은 고려의 대상도 안되네요.

GTX 980m의 CUDA 코어수는 1536이라고 하네요.

http://www.geforce.com/hardware/notebook-gpus/geforce-gtx-980m/specifications

Posted by 쁘레드
IT이야기2016. 7. 14. 03:53

애플이 제품만 잘 만드는 것이 아니라 생태계를 잘 만들어서 들어오면 빠져나갈수 없고 자꾸 애플 제품만을 사게하는 기술로 지금의 자리에 있는 것이지요. 삼성은 그것 못해서 죽어라고 HW만 만들고, 잘 팔아도 맨날 위기라고 하는 것이고요.


그래픽 세상에서 기술력도 중요하지만 이런 생태계를 아직 만는 기업이 없어서 주구장장 치킨게임만 하다가 NVidia가 CUDA라는 GPU API이자 생태계를 만들었는데, 애플처럼 이미 게임의 판도를 업은것 같습니다. AMD-ATI가 이미 죽은 기업으로 돈도없고 투자할 여력도 안되는 입장에서 절대 따라갈수 없는 상황이 된것이지요.


게임하려면 DirectX, OpenGL, OpenCL 지원 GPU를 찾기 마련이지요. 게임만 하려면 새로 나온 GPU중에 적당한 가격만 고르면 AMD던 NVidia든 큰 차이는 없다고 생각됩니다. 게임 이상의 뭔가 더를 원한다면 이제 CUDA 지원 레벨까지 check하게 됩니다. 당연히 CUDA는 NVidia만 지원하지요. CUDA encoder/encoder는 다른 스탠다드 encoder/encoder보다 훨씬 효율적이고 강력합니다. 헐, 그래서 영상 편집, 사진 편집 system은 CUDA 지원 HW/SW가 아주 절실합니다. 학교나 과학자를 위해서도 CUDA는 아주 중요하지요.


요즘 핫한 AI(인공지능)과 machine learning을 위한 환경에서 CUDA는 어떠한 platform보다 우수합니다. 헐~ 물론 이런 쪽은 전문가들과 전공자들을 위한 것이라서 수요가 얼마나 될까하지만, 맹목적으로 추종하는 사람까지 생겨나는거 보면 이미 AMD는 따라올수 없는 상황이 된것 같습니다.

---------------------

https://developer.nvidia.com/cuda-zone



---------------------

그런데 CUDA가 배우기가 쉽지 않다는 것은 함정! C++11 먼저 배우고 오라는 불친절한 엔비디아.

The Power of C++11 in CUDA 7

---------------------

제 노트북이 가진 Nvidia Quadro K1000M은 CUDA 지원버전이 아주 불확실하네요. 지원는 하겠죠.

http://www.nvidia.com/object/quadro-for-mobile-workstations.html


Posted by 쁘레드
IT이야기2015. 11. 10. 03:28

페이스북 아마존은 예상보더 더 좋은 성적을 발표해서 주가도 많이 떴습니다. 주요 IT기업들 요약한 자료가 있어서 옮겨옴.

Facebook/Amazon had great quarter.




--------------

Amazon

Amazon’s reportable segment performance was as follows:
• North America segment revenue grew 28% to $15B. Segment operating income was $528M, a 3.5% operating margin, compared to a loss of $60M in the prior-year period. 
• International segment, revenue increased 7% to $8.3B. Segment operating loss was $56M compared to a loss of $174M in the prior-year period. 
• Amazon Web Services segment revenue grew 78% to $2.1B. Segment operating income was $521M, a 25% operating margin, compared to $98M  in the prior-year period. 

For Q4 2015, net sales of between $33.5B and $36.75B are expected, with GAAP operating income of between $80M and $1.28Bcompared to $591M in the fourth quarter of 2014. 

The company expects consolidated segment operating income (excluding stock-based compensation and other operating expenses) to be between $700M and $1.9B compared to $1.04B in the fourth quarter 2014.

--------------

Apple

Largest absolute revenue growth ever – fiscal 2015 revenue of $234B, an increase of 28% and $5B over 2014.


Made significant inroads into emerging markets - generated over $79B in revenue and growing 63% despite foreign exchange rate headwinds.


Over 300M devices sold over the past year: 231 million iPhones, 55 million iPads and 21 million Macs. Setting new unit records and increasing global market share for both iPhone and Mac.


Ended the year with a record breaking September quarter including sales of 48M iPhones (up 22% year-over-year), strong momentum for iPhone 6 and iPhone 6 Plus across the quarter and a new launch record for iPhone 6s and iPhone 6s Plus near the end of the quarter.


iPhone ASP was $670, an increase of $67 year-over-year, due to more favorable mix and in spite of unfavorable foreign exchange impacts.


In other areas: launched Apple Watch; started taking orders for new Apple TV; exceeded 100B cumulative downloads from the App Store; added Apple Pay in the United States and the United Kingdom; Apple Music now in over a 100 countries; more than 1,600 health kit solutions now available; 50 car models now support CarPlay; 40M users of Apple News; completed 15 acquisitions; 


China: revenue in Greater China nearly doubled year-over-year (up 99%); iPhone sales up 120% in mainland China; 1 million developer program members in China; goal is to increase number of Apple stores in China from 25 to 40 by middle of next year; Apple Music and iTunes, movies and iBooks available in China in the coming quarter.


Apple provided the following guidance for its fiscal 2016 first quarter:

• revenue between $75.5 billion and $77.5 billion

• gross margin between 39 percent and 40 percent

• operating expenses between $6.3 billion and $6.4 billion


--------------

Facebook

Mobile is continuing to drive growth:  1.55B monthly users across all access points - 1.39B use it on mobile devices, with more than 1B on Android; 894M mobile daily active users (DAUs):


Fastest growing interface is Facebook Lite - app for people on low bandwidth connections


More than 8B daily video views on FB; expect video to be the most engaging online content over the next few years - continuing to innovate here.


Introduced "M", a digital assistant that will use AI to help people complete tasks


Internet.org rolled out to 29 countries, more than 15M people online


Revealed Aquila - first aircraft designed to beam internet into communities down from the sky


Plan to ship the Oculus Rift headset early next year. Gear VR (with Samsung) will release this holiday season.  Will continue to invest in immersive experiences and expect this market to be similar to smartphones and PCs as the next big computing device


--------------

Google

Announced new public holding company - Alphabet - on August 10. New operating structure is being introduced in phases. Expect to disclose Google as a single segment and all other Alphabet businesses combined as "Other Bets" beginning in 4Q15. Other Bets will include Access & Energy, Nest, Life Sciences, investments and incubation efforts (i.e. driverless cars)


Expect CapEx to increase next year in Google and Other Bets, in particular Access & Energy


Headcount increased by 16% YoY and 5% QoQ, majority are engineers and product managers


Strong mobile momentum in emerging markets - India is #2 country for mobile search behind the US


Investments in machine learning and artificial intelligence is a priority


Remain focused on "solving the biggest problems and solving them at scale and that present sizable potential revenue opportunities"


Rolling out Android Marshmellow, best-performing release yet. 1.4B 30-day active Android users around the world


New device & platform announcements: Nexus 6P, Nexus 5X, Pixel C - first Android tablet built N2N by Google (full size keyboard with portable tablet); Creating new platforms for newer areas of computing such as Android Wear; Android Auto, the IoT platform, and Chromecast update

--------------

Intel

Higher than expected revenue was driven by higher notebook and desktop ASPs. Ramping 6th generation core microprocessor (Skylake). 


Remain on track to improve mobile profitability by $800M; 75% of that goal has already been recognized


Data center, non-volatile memory, and IoT groups all posted double-digit growth YoY. Memory grew 20% YoY


Higher 14nm costs than expected; ramped Ireland factory too early with first wafters being expensive


Sales in China down slightly, more of a consumer mix than enterprise - across all different segments


Believe they undershipped in notebooks and desktops compared to industry TAM


For full 2015, memory is expected to grow at fast pace; Data center and IoT will exhibit strong growth, but the annual growth rate for all three will be lower than expected due to weaker macroeconomic growth


7360 next gen modem will ship by end of this year; product announcements next year; first of SoFIA LTEs next year; SoFIA w/ Intel 14nm 2H of next year.


Believe they can keep up long term mid-teen level growth for data center group


FY16 should see new products - Silicon Photonics, FPGAs with Altera - increasing data center footprint


FY16 ramping 3D NAND process - will give performance and cost advantage


Reiterated longer term phone strategy is around modems

--------------
MediaTek
3Q15 consolidated revenue of NT$56,962 million, up 21.1% from the previous quarter -3Q15 consolidated gross margin of 42.7%, down 3.2 percentage points from the previous quarter -3Q15 consolidated operating income of NT$7,622 million, up 11.0% from the previous quarter -3Q15 consolidated net income of NT$7,960 million; EPS NT$5.09

--------------

NVidia

Third quarter revenue was a record $1.305 billion, up 7% from a year earlier, up 13% sequentially and substantially above our outlook of $1.18 billion. 

• GPU revenue was $1.11 billion, up 12% from a year earlier

• Tegra processor revenue was $129 million, down 23% from a year earlier

Strategy remains focused on creating platforms for gaming, professional visualization, data center, and automotive.

• Gaming revenue rose 44% year-on-year to $761 million

• Professional visualization (Quadro) revenue increased 8% sequentially to $190 million, a decline of 8% year-over-year

• Datacenter revenue rose 13% sequentially to $82 million

• Automotive revenue rose 51% year-on-year to a record $79 million

o Collaborations with over 50 companies that are developing self-driving car technologies, using NVIDIA DRIVE PX

Forward Looking

• 4Q 2016 revenue to be $1.3 billion, plus or minus 2%. 

• GAAP and non-GAAP gross margins expected to be 56.7% and 57%, respectively, plus or minus 50 basis points

• GAAP operating expenses expected to be approximately $503 million. 

• Non-GAAP operating expenses are expected to be approximately $445 million.

For fiscal 2016, we expect non-GAAP operating expenses excluding litigation costs to be approximately flat with fiscal 2015. Litigation costs are anticipated to be in the range of $70 million to $80 million as we defend our intellectual property.


*GAAP outlook excludes restructuring changes of $25-35 million with wind down of Icera in 4Q 2016

--------------

Broadcom

In light of Broadcom's pending transaction with Avago, Broadcom has discontinued conducting conference calls with analysts and investors to discuss its financial results

-------------

Samsung

News:

• Announced US $10 billion share buyback over the next few quarters

• Overall revenue growth of 6% from previous quarter mainly driven by semiconductor and display.

Semiconductor Business

• System LSI supplying 14 nm products

• Memory: Continuation of process migration and improved product mix

Mobile Business

• Slowdown of smartphone demand, shipment growth led by launch of new models

• Slight increase in revenue, profitability declined

• Lower ASP due to increased sales in mid- to low-end products


Forward-looking

Fourth quarter earnings expected to decline due to changes in exchange rate

Semiconductor Business

• Expect earnings to improve driven by 14 nm foundry supply growth

• Uncertainties expected in supply side, especially on leading-edge technology such as 20 nm DRAM

Mobile

• Expect smartphone and tablet growth due to strong seasonality 

• Intensifying competition due to market growth slowdown may cause difficulties


-------------

Skyworks

• Revenue of $880.8 million, up 23% from the prior year. 

• Operating income of $335.2 million, up 42% versus last year.

• Exited quarter with over $1 billion cash in hand and no debt.

• Full year revenue grew 42% to $3.26 billion. 

Acquisition of PMC

• $11.60/share – expected to close in 1H 2016

Business segments

• Power amplifiers represented 20% of revenue

• Integrated mobile systems was 59% 

o Up 84% year-over-year during the quarter.

• Broad markets was 22%


Fiscal 2016 business outlook:

• Revenue between $925 million and $930 million, up 5.3% sequentially and 15% year-over-year.

• New organic midterm model driven by:

o Served market opportunity growing at a mid-teens pace for the foreseeable future 

o Targeting continued gross margin expansion driven by latest generation products, growth of integrated mobile systems in broad markets, scale benefits associated with increased volume, continuing efficiency gains from filter business, and ongoing efforts to optimize cycle times, yields and supply chain efficiencies.

o Ongoing R&D investments in systems, engineering and field applications teams.

Within six to eight quarters, targeting organic annualized EPS of $8 at a revenue run rate of around $4.5 billion with gross margins in the 53% range. 

Longer term, based on internal margin initiatives, business heading towards 55% gross margins.

Posted by 쁘레드
IT이야기2015. 4. 16. 01:59

벤치마크가 system을 다 대변할수는 없지만, CPU benchmark와 GPU benchmark 두개를 동시에 보는 것은 시스템 성능을 볼수 있는 좋은 측면인것은 맞지요,

Qualcomm이 물량면에서 독보적이었는데 작년에 ARM이 완전 많이 따라왔네요. PowerVR은 Apple에 들어가면서 물량이 무식하게 늘었었고요, Apple이 깐깐하게 선택하고 관리할테니 실제적으로 가장 advance한것이 아닐까 생각됩니다.

역시 GFXBench결과로 Apple IPad에 들어간 PowerVR GX6895이 넘사벽이네요. 이건 desktop 왠만한 GPU와 비교해도 당당할것 같은데요. ARM Mali와Qualcomm Adreno가 차이거 거의 없네요. ARM solution이 이정도로 많이 따라왔나요.

 

3D관련 benchmark라고 보여지는 부분에서는 Tegra가 단연 최고네요. IPhone6에 들어가는 PowerVR GX6450이 엄청 뒤지는것을 보면 Apple이 mobile에서 3D의 중요성을 크게 생각하지 않는거라 보여집니다. 반대로 NVidea는 시장도 없는 3D성능에 계속 목을 맸기때문에 모바일 시장에서 망했었다고 봐도 되겠네요. ARM Mali가 상당한 성능을 보여주네요. ARM이 GPU로 돈을 많이 벌것으로 생각되네요. License정책같은것을 알면 도움되겠네요.

 

Intel과 NVida는 아직까지 mobile까지 확장할 준비가 안되어 있네요. Clock이 너무 놓고 소비전력이 너무 높습니다. 퀄컴의 강력한 경쟁자는 ARM이 되겠네요. 독보적으로 좋을줄 알았는데 거의 비슷하다고 보여지고 ARM 솔루션이 좋은 부분도 있네요. 삼성 갤럭시 S6에도 ARM Mali 새로운 버전이 들어갔을텐데, 성능이 정말 궁금합니다. Mali-T760. 물론 퀄컴 S810에도 어마어마한 Adreno가 들어가있지요. Andreno 430. 발열이 좀 있다고는 하는데. ㅋㅋㅋ. S808에는 Adreno 418.

Source : http://www.linleygroup.com/mpr/article.php?id=11346

 

Samsung Galaxy S6 GFXBench result

http://gfxbench.com/device.jsp?benchmark=gfx30&D=Samsung+Galaxy+S6+%28SM-G920x%2C+SC-05G%29&testgroup=overall


Anandtech S6 Benchmark Preview (정말 비교가 detail하네요.)

http://www.anandtech.com/show/9111/samsung-galaxy-s6-and-s6-edge-preview/2


Samsung S6 vs LG G FLEX 2 G, LG G FLEX는 S810의 초기 물량인데도 큰 차이가 안보이네요. 1080p display여서 그럴까요?

http://gfxbench.com/compare.jsp?benchmark=gfx31&D1=Samsung+Galaxy+S6+%28SM-G920x%2C+SC-05G%29&os1=Android&api1=gl&D2=LG+G+Flex+2+%28F510%2C+H950%2C+H955%2C+H959%2C+LS996%2C+US995%29&cols=2



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Posted by 쁘레드