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SPLASH 2017
Sun 22 - Fri 27 October 2017 Vancouver, Canada
Wed 25 Oct 2017 11:37 - 12:00 at Regency C - Performance Chair(s): Kathryn S McKinley

Virtual Machines (VMs) with Just-In-Time (JIT) compilers are traditionally thought to execute programs in two phases: first the warmup phase determines which parts of a program would most benefit from dynamic compilation, before JIT compiling them into machine code; after compilation has occurred, the program is said to be at a steady state of peak performance. When measuring the performance of JIT compiling VMs, data collected during the warmup phase is generally discarded, placing the focus on peak performance. We introduce a fully automated statistical approach, based on changepoint analysis, which allows us to determine if a program has reached a steady state and, if so, whether that represents peak performance or not. Using this, we show that even when run in the most controlled of circumstances, small, deterministic, widely studied microbenchmarks often fail to reach a steady state of peak performance on a variety of common VMs. Repeating our experiment on 3 different machines, we found that at most 43.5% of <VM, benchmark> pairs consistently reach a steady state of peak performance.

Wed 25 Oct

Displayed time zone: Tijuana, Baja California change

10:30 - 12:00
PerformanceOOPSLA at Regency C
Chair(s): Kathryn S McKinley Google
10:30
22m
Talk
A Volatile-by-Default JVM for Server Applications
OOPSLA
Lun Liu University of California at Los Angeles, USA, Todd Millstein University of California, Los Angeles, Madan Musuvathi Microsoft Research
DOI
10:52
22m
Talk
Static Placement of Computation on Heterogeneous Devices
OOPSLA
Gabriel Poesia Federal University of Minas Gerais, Brazil, Breno Campos Ferreira Guimarães Federal University of Minas Gerais, Brazil, Fabrício Ferracioli LG Electronics, Brazil, Fernando Magno Quintão Pereira UFMG
DOI
11:15
22m
Talk
Skip Blocks: Reusing Execution History to Accelerate Web Scripts
OOPSLA
Sarah E. Chasins University of California, Berkeley, Rastislav Bodík University of Washington
DOI
11:37
22m
Talk
Virtual Machine Warmup Blows Hot and Cold
OOPSLA
Edd Barrett King's College London, CF Bolz-Tereick , Rebecca Killick Department of Mathematics and Statistics, University of Lancaster, Sarah Mount King's College London, Laurence Tratt King's College London
DOI