Orthodox C++ (sometimes referred as C+) is minimal subset of C++ that improves C, but avoids all unnecessary things from so called Modern C++. It's exactly opposite of what Modern C++ suppose to be.
Бранимир Караџић bkaradzic
SaschaWillems
/ gist:47be6970a3e99a3d30e1
Last active
September 26, 2018 22:09
Intel Vulkan Mesa on Ubuntu 15.10
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| # Pre requisites | |
| - Enable DRI3 as described in https://vulkan.lunarg.com/app/docs/v1.0.3.1/getting_started_linux | |
| - Install a library for SHA, e.g. sudo apt-get install libgcrypt11-dev (if not already present) | |
| - Otherwise the driver may throw an error with "_mesa_sha1_compute" when loading SPIR-V shaders | |
| # Building | |
| - Clone Mesa Master : git clone git://anongit.freedesktop.org/mesa/mesa -b Master | |
| - cd mesa | |
| - autoreconf -vfi | |
| - ./configure --with-dri-drivers=i965 --with-gallium-drivers= --with-sha1= --with-vulkan-drivers=intel |
Prerequisites:
- One or more clients running a UNIX-like OS. Examples are given for Ubuntu 12.04 LTS, although all software components are available for other platforms as well (e.g. OS X). YMMV
- A cheap Ubuntu 12.04 VPS with storage. I recommend Backupsy, they offer 250GB storage for $5/month. Ask Google for coupon codes.
Software components used:
Ideas are cheap. Make a prototype, sketch a CLI session, draw a wireframe. Discuss around concrete examples, not hand-waving abstractions. Don't say you did something, provide a URL that proves it.
Nothing is real until it's being used by a real user. This doesn't mean you make a prototype in the morning and blog about it in the evening. It means you find one person you believe your product will help and try to get them to use it.
jboner
/ latency.txt
Last active
November 23, 2024 22:02
Latency Numbers Every Programmer Should Know
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| Latency Comparison Numbers (~2012) | |
| ---------------------------------- | |
| L1 cache reference 0.5 ns | |
| Branch mispredict 5 ns | |
| L2 cache reference 7 ns 14x L1 cache | |
| Mutex lock/unlock 25 ns | |
| Main memory reference 100 ns 20x L2 cache, 200x L1 cache | |
| Compress 1K bytes with Zippy 3,000 ns 3 us | |
| Send 1K bytes over 1 Gbps network 10,000 ns 10 us | |
| Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD |