NDLI: Experiences in designing a robust and scalable interpreter profiling framework

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Experiences in designing a robust and scalable interpreter profiling framework

Content Provider	ACM Digital Library
Author	Gartley, Ian Sundaresan, Vijay Pirvu, Marius Grcevski, Nikola
Abstract	Profile directed feedback (PDF) is a well known technique used to drive many compiler optimizations like basic block ordering and guarded devirtualization. These optimizations are particularly crucial in order to achieve good throughput performance in JEE applications that have a large code footprint. To effectively apply optimizations that rely on profiling information, a just-in-time (JIT) compiler must have access to profiling information that is accurate. One common source of profiling information in a Java virtual machine (JVM) is the interpreter. Typically methods are interpreted as a program ramps up, during which profiling information can be collected. However, obtaining useful and accurate information for large enterprise-class applications can be a challenge because of the memory and performance overhead associated with collecting and processing the large volumes of profiling data that is generated. This paper describes the challenges in maintaining the balance between throughput performance and profiling overhead in a production JIT compiler that is used by the IBM JDK. The scope of the performance overhead in terms of throughput, memory footprint and startup speed for large JEE class applications is introduced and various engineering solutions that were tried are detailed and compared in terms of experimental results. We found that the throughput improvement due to interpreter profiling (IP) can be as high as 58%, whereas the overhead measured in terms of application startup time could cost up to 57%. Our solutions to reducing profiling overhead managed to reduce the startup cost to only a few percent while maintaining the full throughput benefit. By discussing these approaches, this paper offers a balanced and practical overview on how to make PDF work well for enterprise-class applications in a production JIT compiler.
Starting Page	1
Ending Page	10
Page Count	10
File Format	PDF
ISBN	9781467355247
DOI	10.1109/CGO.2013.6494981
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2013-02-23
Access Restriction	Subscribed
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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