Croxx MrCroxx

🦀

A fresh Rustacean.

Nice day for coding ain't it! Hua hah!

MrCroxx / enable avx2 for vscode rust-analyzer

Created March 14, 2024 11:26

settings.json

	{
	"rust-analyzer.server.extraEnv": {
	"RUSTFLAGS": "-Ctarget-feature=+avx2"
	},
	}

MrCroxx / matches.rs

Created March 11, 2024 16:26

	macro_rules! matches {
	($expression:expr, $pattern:pat, $ok:expr, $err:expr) => {
	match $expression {
	$pattern => $ok,
	_ => panic!("unwrap_matches unmatched"),
	}
	};
	}

	impl<K, V, ER, L, S> Entry<K, V, ER, L, S>

MrCroxx / handle_key_adapter.rs

Created February 21, 2024 06:49

	struct HandleKeyAdapter<K, H>(H)
	where
	K: Key,
	H: Handle<K = K>;

	impl<K, H> From<H> for HandleKeyAdapter<K, H>
	where
	K: Key,
	H: Handle<K = K>,
	{

MrCroxx / smt.sh

Last active January 12, 2024 08:34

	#!/bin/bash

	set -euo pipefail

	BASE=$1
	SIZE=$2

	FILE="${BASE}/fio"

	echo "${FILE} will be used for benchmark." \| tee benchmark.log

MrCroxx / iostat.sh

Created January 12, 2024 07:28

	#!/bin/bash
	DEV=$1
	LOOPS=$2

	rm -f iostat.log

	for i in `seq 1 ${LOOPS}`; do
	date '+%Y-%m-%d %H:%M:%S' \| grep -v '^$' \| tee -a iostat.log
	iostat -x -d ${DEV} \| grep -v '^$' \| tee -a iostat.log
	df -Ph ${DEV} \| grep -v '^$' \| tee -a iostat.log

MrCroxx / bench.sh

Last active January 12, 2024 05:54

	#!/bin/bash

	set -euo pipefail

	BASE=$1
	FILE="${BASE}/fio"

	echo "${FILE} will be used for benchmark." \| tee benchmark.log

	SIZE=$(df -Ph ${BASE} \| awk 'NR==2 {print $4}')

MrCroxx / guarded_metrics_v2.rs

Last active January 8, 2024 08:46

	// Copyright 2024 RisingWave Labs
	//
	// Licensed under the Apache License, Version 2.0 (the "License");
	// you may not use this file except in compliance with the License.
	// You may obtain a copy of the License at
	//
	// http://www.apache.org/licenses/LICENSE-2.0
	//
	// Unless required by applicable law or agreed to in writing, software
	// distributed under the License is distributed on an "AS IS" BASIS,

MrCroxx / runtime.rs

Created October 8, 2023 07:12

	// Copyright 2023 MrCroxx
	//
	// Licensed under the Apache License, Version 2.0 (the "License");
	// you may not use this file except in compliance with the License.
	// You may obtain a copy of the License at
	//
	// http://www.apache.org/licenses/LICENSE-2.0
	//
	// Unless required by applicable law or agreed to in writing, software
	// distributed under the License is distributed on an "AS IS" BASIS,

MrCroxx / autosetup.ubuntu.sh

Last active January 5, 2024 03:40

	#!/bin/bash

	read -p 'Enter proxy ip and port (e.g. "127.0.0.1:7890"): ' PROXY
	read -s -p "Enter Password for sudo: " SUDOPW

	# Configure sudo without password.
	echo "Configure sudo without password..."
	echo $SUDOPW \| sudo -S sed -i 's/^%sudo.*/%sudo ALL=(ALL:ALL) NOPASSWD: ALL/g' /etc/sudoers

	# Set needrestart mode to auto.

MrCroxx / trace-cache.py

Created September 21, 2022 09:21

	from bcc import BPF

	kallsyms = "/proc/kallsyms"

	bpf_text = open("bpf.c").read();

	with open(kallsyms) as syms:
	ops = ''
	for line in syms:
	(addr, size, name) = line.rstrip().split(" ", 2)