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http://hdl.handle.net/1942/35388
Title: | Ptlbmalloc2: Reducing TLB Shootdowns with High Memory Efficiency | Authors: | SCHILDERMANS, Stijn AERTS, Kris Shan, Jianchen Ding, Xiaoning |
Issue Date: | 2020 | Publisher: | IEEE COMPUTER SOC | Source: | 2020 IEEE INTL SYMP ON PARALLEL & DISTRIBUTED PROCESSING WITH APPLICATIONS, INTL CONF ON BIG DATA & CLOUD COMPUTING, INTL SYMP SOCIACOMPUTING & NETWORKING, INTL CONF ON SUSTAINABLE COMPUTING & COMMUNICATIONS (ISPA/BDCLOUD/SOCIALCOM/SUSTAINCOM 2020), IEEE COMPUTER SOC, p. 76 -83 | Abstract: | The cost of TLB consistency is steadily increasing as we evolve towards ever more parallel and consolidated systems. In many cases the application memory allocator is responsible for much of this cost. Existing allocators to our knowledge universally address this issue by sacrificing memory efficiency. This paper shows that such trade-offs are not necessary by presenting a novel memory allocator that exhibits both excellent memory efficiency and (TLB) scalability: ptlbmalloc2. First, we show that TLB consistency is becoming a major scalability bottleneck on modern systems. Next, we describe why existing memory allocators are unsatisfactory regarding this issue. Finally, we present and evaluate ptlbmalloc2, which has been implemeted as a library on top of glibc. Ptlbmalloc2 outperforms glibc by up to 70% in terms of cycles and execution time with a negligible impact on memory efficiency for real-world workloads. These results provide a strong incentive to rethink memory allocator scalability in the current era of many-core NUMA systems and cloud computing. | Notes: | Schildermans, S (corresponding author), Katholieke Univ Leuven, Dept Comp Sci, Campus Diepenbeek,Wetenschapspk 27, B-3590 Diepenbeek, Belgium. stijn.schildermans@kuleuven.be; kris.aerts@kuleuven.be; jianchen.shan@hofstra.edu; xiaoning.ding@njit.edu |
Document URI: | http://hdl.handle.net/1942/35388 | ISBN: | 978-1-6654-1485-2 | DOI: | 10.1109/ISPA-BDCloud-SocialCom-SustainCom51426.2020.00036 | ISI #: | WOS:000684021500010 | Category: | C1 | Type: | Proceedings Paper |
Appears in Collections: | Research publications |
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Ptlbmalloc2_Reducing_TLB_Shootdowns_with_High_Memory_Efficiency.pdf Restricted Access | Published version | 1.2 MB | Adobe PDF | View/Open Request a copy |
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