|over 2 years ago||6 months ago|
|-||GNU General Public License v3.0 or later|
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Tracking mentions began in Dec 2020.
Who here is ready to see some 64MB blocks on mainnet?
5 projects | reddit.com/r/btc | 27 Oct 2021
But it's pretty easy to address this. The CoinsViewCache's underlying storage is just a std::map. A while ago, I replaced that with a sparsepp hashtable to improve the memory efficiency. It wasn't hard to do; took a couple of hours. We could do the same thing with a concurrent hashtable implementation. The hardest part of doing this would be picking an implementation and validating that it's mature and stable enough to be used in BCHN. Intel's Threading Building Blocks has some good candidates, but it's also possible that another implementation might be more suitable.5 projects | reddit.com/r/btc | 27 Oct 2021
Hey thanks for the mention /u/jtoomim. I see that you used sparsepp in CoinsViewCache. A phmap::flat_hash_map would probably be similar for memory usage, but likely faster (because of parallel lookup with SSE instructions and contiguous memory storage in one array).
What are some alternatives?
PEGTL - Parsing Expression Grammar Template Library
C++ B-tree - Git mirror of the official (mercurial) repository of cpp-btree
pybind11 - Seamless operability between C++11 and Python
LSHBOX - A c++ toolbox of locality-sensitive hashing (LSH), provides several popular LSH algorithms, also support python and matlab.
Optional Argument in C++ - Named Optional Arguments in C++17
Inja - A Template Engine for Modern C++
FunctionalPlus - Functional Programming Library for C++. Write concise and readable C++ code.
sparsehash-c11 - Experimental C++11 version of sparsehash
sparsehash - C++ associative containers
Hashmaps - Various open addressing hashmap algorithms in C++
robin-hood-hashing - Fast & memory efficient hashtable based on robin hood hashing for C++11/14/17/20