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| Content Provider | ACM Digital Library |
|---|---|
| Author | Chen, Mingyu Ruan, Yuan Cui, Zehan Bao, Yungang Chen, Licheng Huang, Yongbing Sun, Ninghui |
| Copyright Year | 2014 |
| Abstract | DRAM access traces (i.e., off-chip memory references) can be extremely valuable for the design of memory subsystems and performance tuning of software. Hardware snooping on the off-chip memory interface is an effective and nonintrusive approach to monitoring and collecting real-life DRAM accesses. However, compared with software-based approaches, hardware snooping approaches typically lack semantic information, such as process/function/object identifiers, virtual addresses, and lock contexts, that is essential to the complete understanding of the systems and software under investigation. In this article, we propose a hybrid hardware/software mechanism that is able to collect off-chip memory reference traces with semantic information. We have designed and implemented a prototype system called HMTT (Hybrid Memory Trace Tool), which uses a custom-made DIMM connector to collect off-chip memory references and a high-level event-encoding scheme to correlate semantic information with memory references. In addition to providing complete, undistorted DRAM access traces, the proposed system is also able to perform various types of low-overhead profiling, such as object-relative accesses and multithread lock accesses. |
| Starting Page | 1 |
| Ending Page | 25 |
| Page Count | 25 |
| File Format | |
| ISSN | 15443566 |
| e-ISSN | 15443973 |
| DOI | 10.1145/2579668 |
| Volume Number | 11 |
| Issue Number | 1 |
| Journal | ACM Transactions on Architecture and Code Optimization (TACO) |
| Language | English |
| Publisher | Association for Computing Machinery (ACM) |
| Publisher Date | 2014-02-01 |
| Publisher Place | New York |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | DRAM access trace Hybrid tracing mechanism Function High-level event Lock Object Semantic gap |
| Content Type | Text |
| Resource Type | Article |
| Subject | Hardware and Architecture Information Systems Software |
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