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Creators/Authors contains: "Bhimani, Janki"

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  1. ; ; ; ; ; ( , IEEE International Conference on High-Performance Parallel and Distributed Computing)
    Existing tiered memory systems all use DRAM-Preferred as their al- location policy whereby pages get allocated from higher-performing DRAM until it is filled after which all future allocations are made from lower-performing persistent memory (PM). The novel insight of this work is that the right page allocation policy for a workload can help to lower the access latencies for the newly allocated pages. We design, implement, and evaluate three page allocation policies within the real system deployment of the state-of-the-art dynamic tiering system. We observe that the right page allocation policy can improve the performance of a tiered memory system by as much as 17x for certain workloads. 
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    Free, publicly-accessible full text available June 12, 2024
  2. ; ; ( , Proceedings of the 14th ACM Workshop on Hot Topics in Storage and File Systems)
    We argue that wear leveling in SSDs does more harm than good under modern settings where the endurance limit is in the hundreds. To support this claim, we evaluate existing wear leveling techniques and show that they exhibit anomalous behaviors and produce a high write amplification. These findings are consistent with a recent large-scale field study on the operational characteristics of SSDs. We discuss the option of forgoing wear leveling and instead adopting capacity variance in SSDs, and show that the capacity variance extends the lifetime of the SSD by up to 2.94×. 
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  3. ; ; ; ; ; ( , 2022 IEEE International Symposium on High-Performance Computer Architecture (HPCA’22))
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  4. ; ; ; ; ; ( , Design, Automation and Test in Europe Conference. The European Event for Electronic System Design and Test (DATE’22))
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  5. ; ; ; ( , 2021 58th ACM/IEEE Design Automation Conference (DAC))
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  6. ; ; ; ; ; ( , SYSTOR '21: Proceedings of the 14th ACM International Conference on Systems and Storage)
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  7. ; ; ; ( , IEEE International Performance Computing and Communications Conference)
    null (Ed.)
    Accepted Manuscript Full Text Available
  8. ; ; ; ( , 2020 International Performance Computing and Communications Conference (IPCCC'20))
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    Accepted Manuscript Full Text Available
  9. ; ; ; ( , IEEE International Performance Computing and Communications Conference)
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    Accepted Manuscript Full Text Available
  10. ; ; ; ; ( , IEEE Transactions on Computers)
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