Andrii Savytskyi qRoC

wrk -t4 -c400 -d10s http://127.0.0.1:1337/

PHP

Running 10s test @ http://127.0.0.1:1337/
  4 threads and 400 connections
  Thread Stats   Avg      Stdev     Max   +/- Stdev
 Latency 7.02ms 6.94ms 82.86ms 85.27%

Yes

JNI Object	Use across JNI calls?	Use on different thread?	Notes
`JavaVM`

Let's list here crates that enhance Rust as a language.

It not "batteries" like in stdx, but Rust-specific crates for workarounds for various missing features and experimental ideals from non-accepted/postponed RFCs, or just hacky tricks.

The list is supposed to contain (mostly) crates that are internal to Rust, not ones for making Rust deal with "external world" like other languages bindings, file formats, protocols and so on.

Primary focus should be on crates that are not easy to find by conventional means (e.g. no algorithm name, format or protocol to search for).

Note that quality of the listed crates may vary from proof-of-concept to stable-and-widely-used.

Overview

Syncing an Ethereum node is largely reliant on latency and IOPS, I/O Per Second, of the storage. Budget SSDs will struggle to an extent, and some won't be able to sync at all. IOPS can roughly be used as proxy of / predictor for latency. Measuring latency directly is arguably better.

This document aims to snapshot some known good and known bad models.

The drive lists are ordered by interface and then by capacity and alphabetically by vendor name, not by preference. The lists are not exhaustive at all. @mwpastore linked a filterable spreadsheet in comments that has a far greater variety of drives and their characteristics. Filter it by DRAM yes, NAND Type TLC, Form Factor M.2, and desired capacity.

For size, 4TB is a very conservative choice. The smaller 2TB drive should last an Ethereum full node until at least sometime 2026, with the [pre-merge history expiry](https://hackmd.io/@hBXHLw_9Qq2va4pRt

	#!/bin/sh -xe

	API_KEY="YOUR_API_KEY_GOES_HERE"
	FPS="10"
	VLC_PATH="/Applications/VLC.app/Contents/MacOS/VLC"
	# I don't know how this'll behave on multimon, so you might want to hard-code.
	# INRES='1440x900'
	INRES=$(osascript -e 'tell application "Finder" to get bounds of window of desktop'\|sed 's/, /x/g'\|cut -f3- -dx)
	OUTRES='1280x800'
	# You can change this to record microphone or something else, from man soxformat (under coreaudio):

	-- show running queries (pre 9.2)
	SELECT procpid, age(clock_timestamp(), query_start), usename, current_query
	FROM pg_stat_activity
	WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%'
	ORDER BY query_start desc;

	-- show running queries (9.2)
	SELECT pid, age(clock_timestamp(), query_start), usename, query
	FROM pg_stat_activity
	WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%'

	javascript

	ES6ValidationInspection
	JSAccessibilityCheckInspection
	JSBitwiseOperatorUsageInspection
	JSCheckFunctionSignaturesInspection
	JSClosureCompilerSyntaxInspection
	JSCommentMatchesSignatureInspection
	JSComparisonWithNaNInspection
	JSConsecutiveCommasInArrayLiteralInspection

	Anonymous UUID: 704F6787-1C66-4D63-3838-CE1E576A94BF

	Thu Dec 1 20:33:33 2016

	* MCA Error Report *
	CPU Machine Check Architecture Error Dump (CPU: Intel(R) Core(TM) i7-6920HQ CPU @ 2.90GHz, CPUID: 0x506E3)
	CATERR detected! No MCA data found.


	* Device Tree *

	+----------------------------------------------------------+------------------------------------------------------------------------------+
	\| Inspection \| Description \|
	+----------------------------------------------------------+------------------------------------------------------------------------------+
	\| -- angularjs \| \|
	\| EmptyEventHandlerInspection \| Empty Event Handler \|
	+----------------------------------------------------------+------------------------------------------------------------------------------+
	\| -- coffeescript \| \|
	\| CoffeeScriptUnusedLocalSymbolsInspection

	typedef long jint;
	typedef int64_t jlong;
	typedef signed char jbyte;

	/*
	* JNI Types
	*/

	typedef unsigned char jboolean;
	typedef unsigned short jchar;