Virtual machine warmup blows hot and cold

Barrett, Edd and Bolz-Tereick, Carl Friedrich and Killick, Rebecca and Mount, Sarah and Tratt, Laurence (2017) Virtual machine warmup blows hot and cold. Proceedings of the ACM on Programming Languages, 1 (OOPSLA): 52. ISSN 2475-1421

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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 and JIT compiles them into machine code; after compilation has occurred, the program is said to be at 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. In this paper we first run a number of small, deterministic benchmarks on a variety of well known VMs, before introducing a rigorous statistical model for determining when warmup has occurred. Across 3 benchmarking machines only 43.3–56.5% of (VM, benchmark) pairs conform to the traditional view of warmup and none of the VMs consistently warms up.

Item Type:
Journal Article
Journal or Publication Title:
Proceedings of the ACM on Programming Languages
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Deposited On:
18 Apr 2017 14:32
Last Modified:
12 Apr 2024 00:22