polkadot
Polkadot Node Implementation (by paritytech)
py-spy
Sampling profiler for Python programs (by benfred)
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polkadot | py-spy | |
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143 | 25 | |
7,026 | 11,782 | |
- | - | |
9.7 | 6.7 | |
8 months ago | 7 days ago | |
Rust | Rust | |
GNU General Public License v3.0 only | MIT License |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
polkadot
Posts with mentions or reviews of polkadot.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-12-06.
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Projects to contribute to
Polkadot (6400 GitHub Stars) https://github.com/paritytech/polkadot
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There are 43 active parachains on Polkadot, not counting private ones, and 130 total announced projects headed for parachain status. When is the relay chain going to be upgraded to handle more than 100 parachains?
I don't think asynchronous backing has any direct effect on the number of parachains, no (I mean, there likely is an effect, but it's not the goal and my understanding is that any effect on that would be minimal, although I'm not involved in the deep engineering here). It increases throughput, correct, by decreasing the time between blocks by not needing to do a "roundtrip" to the relay chain to build new blocks. See https://github.com/paritytech/polkadot/issues/3779 for an overview.
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Polkadot Digest 17 Jan 2023
Specifically, it was this PR that changed it: https://github.com/paritytech/polkadot/pull/6230
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Bill Laboon AMA 9 Dec 2022 - 14.00-15.00 UTC
A particular validator sent out a LOT of dispute reports (i.e., saying that other validators did something incorrectly) last night (for reasons unknown). It looks like other nodes "choked" reading all of these disputes, and one subsystem died, stalling nodes but NOT killing the process. It's still being investigated, but you can look at the issue on Github to see it being discussed here: https://github.com/paritytech/polkadot/issues/6412
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Bill Laboon AMA - 11 November 14.00 - 15.00 UTC
Asynchronous backing- This might sound a bit dry, but it means that parachains can have increased throughput and double block production speed.
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10H polkadot substrate : Prepare a local parachain testnet
# Clone the Polkadot Repository, with correct version git clone --depth 1 --branch release-v0.9.24 https://github.com/paritytech/polkadot.git # Switch into the Polkadot directory cd polkadot # Build the relay chain Node cargo b -r
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Bill Laboon AMA - 2 Jun 13.00 - 14.00 UTC
An entirely new and more decentralized form of governance - see https://github.com/paritytech/polkadot/pull/5205
This is obviously a very high-level description! For more detail, I recommend reading Gav's description in the Medium post here: https://medium.com/polkadot-network/xcm-the-cross-consensus-message-format-3b77b1373392 or if you really want to dig in, you can review the code here: https://github.com/paritytech/polkadot/tree/59aa955576e963942c60e3ae8f8316444b66cafb/xcm
- Polkadot Digest 22 Apr 2022
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Energy Web chain code sources ?
otherwise this should be the github repository of parity, maybe you can find something there as well? https://github.com/paritytech/polkadot
py-spy
Posts with mentions or reviews of py-spy.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2024-03-13.
- Minha jornada de otimização de uma aplicação django
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Graphical Python Profiler
https://github.com/benfred/py-spy is also really nice, and has an actual oss license.
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Grasshopper – An Open Source Python Library for Load Testing
For CPU cycles, py-spy[0] is getting more and more used. For RAM, I would like to known too...
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Debugging a Mixed Python and C Language Stack
Theres also Py Spy, a profiling tool that can generate flame charts containing a mix of python and C (or C++) calls.
https://github.com/benfred/py-spy
It's worked really well for my needs
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python to rust migration
You should profile your consumer to check the bottlenecks. You can use the excellent py-spy(written in Rust). IMO a few usage of Numba there and there should solve your performance issues.
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Trace your Python process line by line with minimal overhead!
Any advantages/disadvantages compared to py-spy [1]?
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Python 3.11 delivers.
Python profiling is enabled primarily through cprofile, and can be visualized with help of tools like snakeviz (output flame graph can look like this). There are also memory profilers like memray which does in-depth traces, or sampling profilers like py-spy.
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Profiling a Python library written in Rust (Maturin)
Might be worth raising an issue on py-spy (a python profiler written in rust which "supports profiling native python extensions written in languages like C/C++ or Cython" to see if that can close the loop.
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Run SQL on CSV, Parquet, JSON, Arrow, Unix Pipes and Google Sheet
It is pretty cool. py-spy has also been doing this for a few years
What are some alternatives?
When comparing polkadot and py-spy you can also consider the following projects:
pyflame
pyinstrument - 🚴 Call stack profiler for Python. Shows you why your code is slow!
python-uncompyle6 - A cross-version Python bytecode decompiler
memory_profiler - Monitor Memory usage of Python code
icecream - 🍦 Never use print() to debug again.
line_profiler
profiling
filprofiler - A Python memory profiler for data processing and scientific computing applications
yappi - Yet Another Python Profiler, but this time multithreading, asyncio and gevent aware.
Sampling Profiler for Python - Simple Python sampling profiler
substrate - Substrate: The platform for blockchain innovators
parity-signer - Air-gapped crypto wallet.