Show HN: Python can make 3M+ WebSocket keys per second
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Re: Show HN: Python can make 3M+ WebSocket keys per second
#2The title should be “optimization-demo” (original title) or “Replacing parts of Python programs by C++ can be easy and profitable”.
They replace Python code that makes 5 calls into native code by code that makes 1 call that makes those 5 calls, and get a speed up from 869k calls per second to 3.15m calls per second, so a snarky title could even be “Python-to-native calls are slow”.
They could even measure it by adding a C++ version of that
def magic_accept(key: str) -> str:
return 's3pPLMBiTxaQ9kYGzzhZRbK+xOo='
Re: Show HN: Python can make 3M+ WebSocket keys per second
#3The hardest part of debugging Python is "hitting the wall" when you come to a native library (compiled C code). And Python has achieved a lot of speed-ups from Py2 to Py3 by adding more compiled C code. This is a real blocker for understanding the foundation library.
On the other hand, in Java, with a few exceptions around Swing (native painting for GUIs) in Java, almost everything is written in pure Java, so you can debug all the way down if need be. It is a huge help for understanding the foundation library and all of its edge cases (normal for any huge library). Modern Java debuggers, like IntelliJ, are so crazy, they will decompile JARs and allow you to set debug breakpoints and step-into decompiled code. It is mind blowing when trying to debug a library that you don't own the source code (random quant lib, ancient auth lib, etc.).
Re: Show HN: Python can make 3M+ WebSocket keys per second
#4The title should be “optimization-demo” (original title) or “Replacing parts of Python programs by C++ can be easy and profitable”. They replace Python code that makes 5 calls into native code by code that makes 1 call that makes those 5 calls, and get a speed up from 869k calls per second to 3.15m calls per second, so a snarky title could even be “Python-to-native calls are slow”. They could even measure it by addin…
Did you take a look at the C++ implementation of the hashing function they did? I didn't see a single call made there. They replaced python code that makes 5 calls into a single call.
Re: Show HN: Python can make 3M+ WebSocket keys per second
#5The hardest part of debugging Python is "hitting the wall" when you come to a native library (compiled C code). And Python has achieved a lot of speed-ups from Py2 to Py3 by adding more compiled C code. This is a real blocker for understanding the foundation library. On the other hand, in Java, with a few exceptions around Swing (native painting for GUIs) in Java, almost everything is written in pure Java, so you can…
Are python debuggers really unable to integrate with something like GDB? I have no problem debugging native calls from Java. During development I've never seen a case where library source was unavailable. Even proprietary components from other companies come with source included.
Re: Show HN: Python can make 3M+ WebSocket keys per second
#6The hardest part of debugging Python is "hitting the wall" when you come to a native library (compiled C code). And Python has achieved a lot of speed-ups from Py2 to Py3 by adding more compiled C code. This is a real blocker for understanding the foundation library. On the other hand, in Java, with a few exceptions around Swing (native painting for GUIs) in Java, almost everything is written in pure Java, so you can…
Do you think that relying less in C code could be better for Python and it’s community?
I mean less focus on being “glue” between C code and more focus con optimizing the interpreter?
Re: Show HN: Python can make 3M+ WebSocket keys per second
#7The hardest part of debugging Python is "hitting the wall" when you come to a native library (compiled C code). And Python has achieved a lot of speed-ups from Py2 to Py3 by adding more compiled C code. This is a real blocker for understanding the foundation library. On the other hand, in Java, with a few exceptions around Swing (native painting for GUIs) in Java, almost everything is written in pure Java, so you can…
Are python debuggers really unable to integrate with something like GDB? I have no problem debugging native calls from Java. During development I've never seen a case where library source was unavailable. Even proprietary components from other companies come with source included.
GDB on its own does a reasonable job debugging python: https://wiki.python.org/moin/DebuggingWithGdb
Re: Show HN: Python can make 3M+ WebSocket keys per second
#8The hardest part of debugging Python is "hitting the wall" when you come to a native library (compiled C code). And Python has achieved a lot of speed-ups from Py2 to Py3 by adding more compiled C code. This is a real blocker for understanding the foundation library. On the other hand, in Java, with a few exceptions around Swing (native painting for GUIs) in Java, almost everything is written in pure Java, so you can…
Do you think that relying less in C code could be better for Python and it’s community? I mean less focus on being “glue” between C code and more focus con optimizing the interpreter?
It is unlikely people would use Python if it didn't rely on C code.
If your ML model takes hours when it can take minutes, or takes days when it can take hours, you will move away. You could move away to another language or a faster interpreter but that's a different discussion.
> more focus con optimizing the interpreter
This is good but there's an upper bound to performance of interpreted languages. Maybe the Python interpreter could be as fast as V8, but it is unlikely to be fast as JVM. People will need to drop down to C / Fortran for whatever compute intensive work they're doing.
Re: Show HN: Python can make 3M+ WebSocket keys per second
#9The hardest part of debugging Python is "hitting the wall" when you come to a native library (compiled C code). And Python has achieved a lot of speed-ups from Py2 to Py3 by adding more compiled C code. This is a real blocker for understanding the foundation library. On the other hand, in Java, with a few exceptions around Swing (native painting for GUIs) in Java, almost everything is written in pure Java, so you can…
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Re: Show HN: Python can make 3M+ WebSocket keys per second
#10Python can make 3M+ WebSocket keys per second
C++ 85.1%