|Industry||Computer Software and Hardware|
|Headquarters||Sunnyvale, California, United States|
|Gil Tene, Vice President of Technology and CTO, Co-Founder|
|Slogan||Java for the Real Time Business|
Azul Systems, Inc., a privately held company, develops runtime platforms for executing Java-based applications. Founded in March 2002, Azul Systems is headquartered in Sunnyvale, California, with offices in London, United Kingdom; Saint Petersburg, Russia and Bangalore, India.
Azul produces Zing, a Java Virtual Machine (JVM) and runtime platform for Java applications that is designed to remove memory limitations and scale elastically. The company was formerly known for its Vega Java Compute Appliances (JCAs), specialized hardware designed to massively scale the usable compute resources available to Java applications. Zing utilizes and improves on the software technology developed for the Vega hardware.
Zing became generally available October 19, 2010. The product includes a JVM, management tool and monitoring tool. Zing is based on established technology from Azul that allows existing Java applications to scale to dozens of CPU cores and hundreds of gigabytes of memory 'elastically', meaning resources can also scale up and down based on real-time demands, and without garbage collection pauses present in other Java runtimes.
Zing is compliant with the Java SE standard and is based on Oracle's HotSpot. Where a typical Java Virtual Machine uses static heap sizes and reaches a practical size limitation due to garbage collection pauses, Zing implements Azul's C4 (Continuously Concurrent Compacting Collector) garbage collection software technology, allowing heap sizes of hundreds of GBs without pauses. Zing also utilizes Azul's technology for elastic memory, which allows memory heaps for Java instances to grow and shrink based on load. This dynamic heap scaling removes the need for most JVM and GC tuning. Zing also incorporates ReadyNow! technology to shorten warm-up time and avoid de-optimization during runs. 
The Zing Vision tool provides low overhead production visibility of running Java applications using statistical information that is already available from processing occurring within the JRE.
Azul's Java Compute Appliances (JCAs) were designed to massively scale up the usable compute resources available to Java applications. A proxy Java Virtual Machine (JVM) installed on the existing system will transparently redeploy Java applications to the Azul appliance, the latest version of which, the Vega 3, can contain up to 864 processor cores and 768 GB of memory.
Azul distributes and supports Zulu and Zulu Enterprise, a certified binary build of OpenJDK. The initial release in September 2013 supported Java 7 and 6 and ran on Windows 2008 R2 and 2012 on the Windows Azure Cloud. On January 21, 2014, Azul announced Zulu support for multiple Linux versions as well as Zulu Enterprise, which has subscription support options. Support for Java 8 was added in April 2014 and Mac OS X support was added in June 2014. In September 2014, Zulu was extended to support Docker. Zulu Embedded, which allows developers to customize the build footprint, was released in March, 2015. 
Azul produces the jHiccup open source performance measurement tool for Java applications. It is designed to measure the stalls or "hiccups" caused by an application's underlying Java platform.
Azul Systems was founded by Scott Sellers (now President & CEO), Shyam Pillalamarri (VP of Engineering), and Gil Tene (CTO). The first compute appliances, offered in April 2005, were the 960, 1920 and 3840, consisting of 96, 192 and 384 processor cores, respectively.
Stephen DeWitt previously held the position of CEO.
Azul Systems was approached in 2005 by Sun Microsystems, who offered a licensing deal for patents it claimed Azul had violated. In March, 2006, Azul Systems sued Sun Microsystems, asking a U.S. District Court in northern California to rule on the issue of patent infringement. In May 2006, Sun Microsystems sued Azul Systems in federal court in San Jose, CA, claiming patent infringement and violation of a non-competitive agreement with former Azul CEO, Stephen DeWitt, also a former Sun employee. Both parties agreed to the terms of an undisclosed settlement in June 2007 prior to either suit going to trial.
Based on public filings, Azul has raised more than $200M in financing to date.
Major investors include Accel Partners, Austin Ventures, Credit Suisse, Meritech Capital Partners, Redpoint Ventures, Velocity Interactive Group, and Worldview Technology Partners. ComVentures and JVax Investment Group have also invested in Azul.
Azul Zulu 8.7 was released in May, 2015. It added support for Oracle Enterprise Linux and incorporated the latest OpenJDK updates.
Azul Zulu 8.4 was released October 31, 2014. It added Mac OS X 10.10 Yosemite support; DEB packaging, Apt-Get repository distribution and Docker for Debian Jessie and Wheezy (7.x) releases on Intel x86-64; and new Zulu Docker containers for Debian and CentOS.
Azul Zing version 14.09 was released in September, 2014. This version added Java SE 8 support, support for Red Hat Enterprise Linux 7.0 and Ubuntu (operating system) 14.04 LTS, memory module AutoBuild for flexible Linux version support, and added the ability to save and reuse accumulated compiler optimizations between runs.
Azul Zulu for Mac OS X was released in June, 2014.
Azul Zulu version 8.0 with Java SE 8 support was released in April, 2014.
Azul Zing version 5.9 was released in March, 2014. The major new feature was de-optimization control, called ReadyNow!.
Azul Zulu for Java 6 and multiple Linux versions was released in January, 2014.
Azul Zulu was released in September, 2013. Zulu is a supported build of OpenJDK. The initial release runs on Windows 2008 R2 and 2012 on the Microsoft Azure Cloud.
Zing 4.1 was released in May, 2011, adding support for Red Hat Enterprise Linux 6 (Red Hat Enterprise Linux), Kernel-based Virtual Machine (KVM) (Kernel-based Virtual Machine) and JBoss Enterprise Application Platform (EAP) 5.1 (JBoss Enterprise Application Platform). The company indicated this was their first 'bare-metal' implementation.
Azul Systems released Zing 4.0 in October, 2010.
Azul Systems released the Vega 2 7200 Series, in June 2007. The 7200 series contains up to 768 processing cores on 16 processor chips with 768 GB of memory. Azul designed the 48 core Vega 2 processor chip. Taiwan Semiconductor Manufacturing Company (TSMC) fabricated the Vega 2 processor. Notable companies utilizing the 7200 series include Credit Suisse, Wachovia, British Telecom, and TransUnion.
Azul Systems released the Vega 3 7300 Series in May 2008. The 7300 series contains up to 864 processing cores with 768 GB of memory.
- "Company Locations". Azul Systems.
- (http://www.infoq.com/interviews/gil-tene-azul-zing) - Azul Puts the Zing in Java, InfoQ, December 30, 2010
- (http://www.itjungle.com/tfh/tfh062810-story08.html) Azul Readies x64-Based Java Virtual Appliance, IT Jungle, June 28, 2010
- (http://java.sys-con.com/node/1443194) Azul Zings Its Java Hardware - Poof, It's Software, Java Developer's Journal, June 24, 2010.
- (http://www.azulsystems.com/products/zing/whatisit) Product page
- (http://www.azulsystems.com/technology/c4-garbage-collector) Azul web site, page describing C4 garbage collection algorithm
- http://www.drdobbs.com/jvm/azul-readynow-blasts-heat-on-java-warm-u/240166623 Dr. Dobbs article
- (http://www.azulsystems.com/press/azul-announces-general-availability-zingtm-elastic-runtime) Azul press release, October 19, 2010.
- (http://www.artima.com/lejava/articles/azul_pauseless_gc.html) Azul's Pauseless Garbage Collector, artima developer, December 17, 2010
- (http://www.azulsystems.com/products/vega/overview) Azul Compute Appliance - Azul Product Page
- (http://www.infoworld.com/t/java-programming/microsoft-azul-put-open-source-java-azure-cloud-223377)InfoWorld: Microsoft, Azul to put open source Java on Azure cloud, July 24, 2013
- Azul Systems press releases http://www.azulsystems.com/press/azul-systems-launches-zulu-enterprise-a-commercialized-fully-supported-version-of-openjdk and http://www.azulsystems.com/press/azul-systems-extends-zulu-to-support-java-6-and-major-linux-distributions
- Azul Systems press releases http://www.azulsystems.com/press-2014/azul-systems-extends-zulu-runtime-for-java-to-support-java-8 and http://www.azulsystems.com/press-2014/azul-systems-extends-zulu-runtime-for-java-to-support-mac-os-x
- InfoWorld, "Run anywhere again: Java hooks up with Docker" http://www.infoworld.com/article/2687074/java/run-anywhere-java-docker.html
- Electronics Weekly article http://www.electronicsweekly.com/news/design/embedded-systems/java-based-platforms-certified-iot-2015-03/
- (http://www.infoq.com/news/2011/12/jHiccup) Azul Releases Open Source jHiccup Tool to Provide Response Time Analysis of the Java Runtime
- Azul takes wraps off Java compute appliance - NetworkWorld.com, April 18, 2005.
- DeWitt, Stephen (2003). "Commission of Corporations, State of California, Notice of Transaction Pursuant to Corporations Code 25102(f)" (PDF). San Francisco: California Department of Corporations.
- Update: Sun sues Azul for patent infringement – Infoworld, May 4, 2006
- Sun Microsystems Settle Patent Disputes With Azul - InformationWeek, June 20, 2007
- Cal-EASI Database
- "Azul Systems Investors". Azul Systems.
- "Azul Financing Article". San Jose Biz Journal.
- (http://betterjava.wordpress.com/2014/10/31/zulu-8-4-with-mac-osx-10-10-yosemite-support-now-available-for-download/)blog post: Zulu 8.4 with Mac OS X 10.10 Yosemite Support Now Available for Download
- (http://sdtimes.com/azul-asserts-jvm-leadership-innovative-new-release-zing-runtime-java/)SD Times: Azul asserts JVM leadership with innovative new release of Zing runtime for Java, September 29, 2014
- (http://www.azulsystems.com/products/zing/specs)Azul Systems Website: Zing Specifications Page
- (http://adtmag.com/articles/2014/09/23/zulu-on-docker.aspx)Application Development Trends: Azul's Zulu OpenJDK Now Available on Docker, September 23, 2014
- (http://www.azulsystems.com/press-2014/azul-systems-extends-zulu-runtime-for-java-to-support-mac-os-x)Azul Systems Press Release: Azul Systems Extends Zulu Runtime for Java to Support Mac OS X, June 11, 2014
- (http://adtmag.com/articles/2014/04/09/zulu-updated-for-java-8.aspx)Application Development Trends: Azul Releases Zulu OpenJDK for Java 8, April 9, 2014
- (http://www.forbes.com/sites/tomgroenfeldt/2014/03/20/azul-preps-java-for-trading-avoid-practice-trades-leaking-into-markets/)Forbes Magazine: Azul Preps Java For Trading -- Avoid Practice Trades Leaking Into Markets, March 20, 2014
- (http://www.azulsystems.com/press-2014/azul-systems-extends-zulu-to-support-java-6-and-major-linux-distributions)Azul Press Release: Azul Systems Extends Zulu to Support Java 6 and Major Linux Distributions, January 21, 2014
- (http://www.eweek.com/developer/microsoft-azul-bring-openjdk-to-windows-azure-with-zulu.html/)eWeek: Microsoft, Azul Bring OpenJDK to Windows Azure With 'Zulu', September 25, 2013
- (http://www.drdobbs.com/jvm/zings-unstoppable-java-for-websphere/240155196) Dr. Dobb's Journal: Zing's Unstoppable Java for WebSphere, May 20, 2013
- (http://www.azulsystems.com/press/azul-systems-announces-general-availability-of-zing-jvm-release-5-5)Azul Systems announces general availability of Zing JVM release 5.5, Oct. 1, 2012
- (http://www.drdobbs.com/jvm/232901277) Azul Zing 5.2 JVM Released with Support for Ubuntu, May 1, 2012
- (http://virtualization.tmcnet.com/topics/virtualization/articles/270936-azuls-zing-50-jvm-now-qualified-suse-linux.htm) Azul's Zing 5.0 JVM now qualified on SUSE Linux Enterprise Server 11, February 28, 2012
- (http://adtmag.com/articles/2011/11/08/new-jvm-specially-designed-for-linux.aspx) New JVM specially designed for Linux, November 8, 2011
- (http://www.azulsystems.com/press/zing-unleashes-bare-metal-performance) Azul press release, May 2, 2011
- (http://www.theregister.co.uk/2010/10/19/azul_zing_launch/page2.html) Azul starts peddling Zing virty Java Stack, October 19, 2010
- Java-Crunching Monsters – The Chiplist, June 14, 2007
- "Azul Compute Appliances". Azul Systems. Archived from the original on May 13, 2008. Retrieved May 23, 2008.
- Azul Systems - Official site.
- Priming Java for Speed – Azul CTO Gil Tene's presentation from QCon SF 2014 (video)
- Understanding Java Garbage Collection - Azul CTO Gil Tene's presenation from SpringOne 2GX 2013 (video)
- C4 white paper - White paper from the ACM conference describing the C4 (Continuously Concurrent Compacting Collector) garbage collection algorithm. Authors: Gil Tene, Balaji Iyengar and Michael Wolf, all of Azul Systems
- Enabling Java in Latency-Sensitive Environments - Video of Azul CTO Gil Tene's presentation from QCon New York 2013