(WEB401) Optimizing Your Web Server on AWS | AWS re:Invent 2014
(WEB401) Optimizing Your Web Server on AWS | AWS re:Invent 2014 Tuning your EC2 web server will help you to improve application server throughput and cost-efficiency as well as reduce request latency. In this session we will walk through tactics to identify bottlenecks using tools such as CloudWatch in order to drive the appropriate allocation of EC2 and EBS resources. In addition, we will also be
AWS インスタンス別ネットワーク帯域・InstanceStore IOPS測定 - Qiita
#!/bin/sh INSTANCE_TYPE=$(curl -s http://169.254.169.254/2014-11-05/meta-data/instance-type) yum install fio -y umount /media/ephemeral0 time dd if=/dev/zero of=/dev/xvdb bs=1M sudo mkfs.ext4 /dev/xvdb mount /media/ephemeral0 for i in `seq 0 3`;do time fio -name=random-write \ --output=/home/ec2-user/${INSTANCE_TYPE}-${i}.txt \ -ioengine=libaio \ -rw=randrw \ -rwmixread=0 \ -bs=16k \ -numjobs=16 \
Selecting a NAT Instance Size on EC2 | Azavea
We’ve been using the Amazon Web Services (AWS) Virtual Private Cloud (VPC) functionality to create an isolated and secure hosting environment for our SaaS product, HunchLab. When EC2 servers in a VPC with only private IP addresses need access to S3 (or to the Internet) the network traffic must be routed through a NAT instance. This architecture provides increased security by reducing the externa
Placement groups - Amazon Elastic Compute Cloud
To meet the needs of your workload, you can launch a group of interdependent EC2 instances into a placement group to influence their placement. Depending on the type of workload, you can create a placement group using one of the following placement strategies: Cluster – Packs instances close together inside an Availability Zone. This strategy enables workloads to achieve the low-latency network pe
Amazon EC2のデータ転送量と課金まとめ
はじめに クラウドサービスの代名詞でもあるAWS(Amazon Web Services)が待望の東京リージョンを開設してしばらく経ちました。我々Scutum(スキュータム)はSaaS型のWAF(Web Application Firewall)サービスであるため、AWSのEC2のようなIaaS型のインフラ上に積極的に展開をおこなっています。本エントリではその際にポイントとなる、EC2でのデータ転送量への課金について調べてみました。 (クリックで拡大します) このエントリの内容はオフィシャルのウェブページやインターネット上の情報を元にしたものであり、実情と異なっている可能性もあるのでご注意ください。また、価格は東京リージョンのものとなっています。 AWSの複雑な課金体系 AWSの特徴のひとつとして、課金の仕組みが非常に複雑であることが挙げられます。これは高いオンデマンド性を実現するために仕
Part 1: Lessons learned tuning TCP and Nginx in EC2 « Chartbeat Engineering Blog
Part 1: Lessons learned tuning TCP and Nginx in EC2 January 2nd, 2014 by Justin Our average traffic at Chartbeat has grown about 33% over the last year and depending on news events, we can see our traffic jump 33% or more in a single day. Recently we’ve begun investigating ways we can improve performance for handling this traffic through our systems. We set out and collected additional metrics f
Enhanced networking on Linux - Amazon Elastic Compute Cloud
Enhanced networking uses single root I/O virtualization (SR-IOV) to provide high-performance networking capabilities on supported instance types. SR-IOV is a method of device virtualization that provides higher I/O performance and lower CPU utilization when compared to traditional virtualized network interfaces. Enhanced networking provides higher bandwidth, higher packet per second (PPS) performa
Pushing the Limits of Amazon S3 Upload Performance
Recently I’ve been working on a project where I’ve got millions of relatively small objects, sized between 5kb and 500kb, and they all have to be uploaded to S3. Naturally, doing a synchronous upload of each object, one by one, just doesn’t cut it. We need to upload the objects in parallel to achieve acceptable performance. But what are the optimal parameters when it comes to the number of simulta
AWS, Bandwidth and content delivery
My question is about Virtual Machines and delivering their content over the servers connection to the internet. I have an Ec2 windows instance, and its network connection appears to be 100mbps If I was to be delivering content from that EC2 instance, is THAT my potential bottleneck? How does s3 differ, I am guess their is no real potential outbound bottleneck with s3? Note : I know s3 and their CD
High performance network programming on the jvm oscon 2012
Slides from OSCON 2012 talk on network programming on the JVM
Network Latency Inside And Across Amazon EC2 Availability Zones | Life Scaling
I couldn’t find any info out there comparing network latency across EC2 Availability Zones and inside any single Availability Zone. So I took 6 instances (2 on each US zone), ran some test using a simple ping, and measured 10 Round Trip Times (RTT). Here are the results. Single Availablity Zone Latency Availability Zone Minimum RTT Maximum RTT Average RTT us-east-1a 0.215ms 0.348ms 0.263ms us-east
MurakumoによるElastic Network Interfaceのフェイルオーバー - so what
Murakumo 0.4.5をリリースしました。 https://rubygems.org/gems/murakumo/versions/0.4.5 今回はKeepalived/Heartbeatのような冗長化機能を追加しました。 Elastic Network Interfaceを使った冗長化の例 ■概要 アクティブなサーバのMySQLが落ちたとき・サーバ自体が落ちたときに、バックアップ側にENIを付け替える例です。 ■準備 まずVPCにインスタンスを用意します。 server-01にENIをアタッチして、ルーティングテーブルを設定します。 server-01 [root@server-01 ~]# route Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 169.254.16
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