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#include <iostream>
#include <stdint.h>
#include <x86intrin.h>

#include "ippcp.h"
#include "examples_common.h"

#define DATA_SIZE   1024*1024
#define DIGEST_SIZE 32
#define ITERATIONS  10000

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Rust Snippets

Pass a Vec<> by reference to a function

let data: vec![0u8; 1024];
foo(data.as_ref()); // Passes an immutable slice

fn foo(data: &[u8]) {
    ...
}

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# Read N lines of input, splitting each line and storing the result in a numpy array.
import numpy as np

a = np.array([input().split() for _ in range(N)], int)

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Using Conda

Creating a new environment. In this example, the environment is setup to use python 3.10

    $ conda create --name py10 python=3.10

Activating an environment

 $ conda activate py10

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Visual Studio Code Notes

Remote SSH

Add proxy details for the remote host to use when loading extensions. Details are added to the settings.json on the remote host.

"http.proxy": "proxy_url:port"

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Journalctl

On newer Linux systems, especially Fedora based, journalctl often replaces the syslog output in /var/log/messages.

Monitoring syslog

Monitor new syslog entries (similar to tail -f /var/log/messages):

journalctl -f

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PowerShell Notes

Searching/Grepping files

PowerShell equivalent of egrep:

Select-String <string>

and egrep -r:

dir -Recurse | Select-String <string>

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#ifndef _TIMESTAMP_H_
#define _TIMESTAMP_H_

static inline uint64_t timestamp_start(void)
{
	union {
		uint64_t tsc_64;
		struct {
			uint32_t lo_32;
			uint32_t hi_32;

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def mpps(gbps, size):
	return (gbps / (size * 8)) * 1000
	
def gbps(mpps, size):
	return mpps * size * 8 / 1000;
	
def pkt_size(gbps, mpps):
	return (gbps * 1000) / mpps / 8
	
##################################################

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Octave CheatSheet

GNU Octave is a high-level interpreted language, primarily intended for numerical computations.
(via GNU Octave)

Basics

• not equal ~=
• logical AND &&