palash25

Compiler Tools and Techniques

Compilers

LLVM

• Backend
• https://github.com/draperlaboratory/fracture/wiki
• Life of an instruction in LLVM by Eli
• Different LLVM IRs
• MC Project

palash25

Benchmarking Nginx with Go

There are a lot of ways to serve a Go HTTP application. The best choices depend on each use case. Currently nginx looks to be the standard web server for every new project even though there are other great web servers as well. However, how much is the overhead of serving a Go application behind an nginx server? Do we need some nginx features (vhosts, load balancing, cache, etc) or can you serve directly from Go? If you need nginx, what is the fastest connection mechanism? This are the kind of questions I'm intended to answer here. The purpose of this benchmark is not to tell that Go is faster or slower than nginx. That would be stupid.

So, these are the different settings we are going to compare:

• Go HTTP standalone (as the control group)
• Nginx proxy to Go HTTP
• Nginx fastcgi to Go TCP FastCGI
• Nginx fastcgi to Go Unix Socket FastCGI

palash25

 palash25@Lenovo-G50  ~/Dev/Projects/wc   master ?  \time --format "\n real %E\t user %U\t sys %S\t mem %K\t ssize %p" wc ../../small-file-* 
  48414   81402  556859 ../../small-file-1
  48414   81402  556859 ../../small-file-2
  48414   81402  556859 ../../small-file-3
 145242  244206 1670577 total

 real 0:00.05	 user 0.05	 sys 0.00	 mem 0	 ssize 0
 palash25@Lenovo-G50  ~/Dev/Projects/wc   master ?  \time --format "\n real %E\t user %U\t sys %S\t mem %K\t ssize %p" ./target/release/wc ../../small-file-*
48414	81402	556859	../../small-file-1
48414	81402	556859	../../small-file-2

palash25

 palash25@Lenovo-G50  ~  sudo dpkg --configure -a                                                                             ✔  10131  12:06:01
Setting up mysql-server-5.7 (5.7.27-0ubuntu0.16.04.1) ...
Checking if update is needed.
Checking server version.
Running queries to upgrade MySQL server.
Checking system database.
mysql.columns_priv                                 OK
mysql.db                                           OK
mysql.engine_cost                                  OK
mysql.event                                        OK

palash25

node-01

cluster.name: test
node.name: es-master-01
node.master: true
node.ingest: false
node.data: true
http.enabled: false
path.data: data/master
discovery.zen.ping.unicast.hosts: ["localhost:9301", "localhost:9302"]

palash25

ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQC3CN8lWy1taT/QvOR/eWNfpU7jV9vHNggS4389ZnTq1CaBWW5Z/ysmzaepsmJ5sADeuTGWCb8Gt/oeva7mypvwLsMXxkt/oomqdUAcKd41UtJHSYSmn75YiEYDsIRxE4J7ahQf5/gKOeM5IMT4LxDeItLl9tNpHze63ea6WznxMrPCy6mDb1x7wO5ziRQCjNOkZBS3FtVMlPU6bph+gCYPbAWv/da/9NxenUS+slPWt6BofWEd6pN1XJjHmf7O5jtSbJYKUGClJ35gOpO4osdUcZwXCzUMmLok1EXXwkio0bEZjn5ftmjWLvUJMMsnffk8na+Hsk+hoEeBfw3I32ln palash25@Lenovo-G50

palash25

{
	"_id" : "uhxZabiBml",
	"class" : "Response",
	"type" : "baseline_response",
	"keys" : "answers,responseId,formId,isActive",
	"formId" : "nNpqEjFEj8",
	"_p_organization" : "Organization$Ftu5QdMygg",
	"isActive" : true,
	"useMasterKey" : true,
	"queryString" : "\"formId\":\"nNpqEjFEj8\",\"answers.questionId\":\"V9gv0mHlen\",\"answers.text\":\"Mathura\"",

palash25

// This is an example of using elastic's BulkProcessor with Elasticsearch.
// 
// See https://github.com/olivere/elastic and
// and https://github.com/olivere/elastic/wiki/BulkProcessor
// for more details.

/*
 * This example illustrates a simple process that performs bulk processing
 * with Elasticsearch using the BulkProcessor in elastic.
 *

palash25

{
"_source": ["_id"],
"from": 1,
"size": 10,
"query": {
    "bool": {
        "filter": [{
            "bool": {
                "should": {
                    "bool": {

palash25

{
	"organizationId": "atlan",
	"order": "asc",
	"allFormsFLag": true,
	"formId": "hHhcLKh9st1vFr8nDY4a",
	"dateField": "_created_at",
	"startDate": "2019-05-20",
	"endDate": "2019-05-21",
	"userId": [
		"gTOAbrbVUkPXgZYNXz2n"