Storage Type and Hot Partition Aware Page Reclamation for NVM Swap in Smartphones
With the rapid advances in mobile app technologies, new activities using smartphones emerge every day including social network and location-based services. However, smartphones experience problems in handling high priority tasks, and often close apps without the user’s agreement when there is no ava...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-01-01
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| Series: | Electronics |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2079-9292/11/3/386 |
| _version_ | 1797488389199495168 |
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| author | Hyejung Yoon Kyungwoon Cho Hyokyung Bahn |
| author_facet | Hyejung Yoon Kyungwoon Cho Hyokyung Bahn |
| author_sort | Hyejung Yoon |
| collection | DOAJ |
| description | With the rapid advances in mobile app technologies, new activities using smartphones emerge every day including social network and location-based services. However, smartphones experience problems in handling high priority tasks, and often close apps without the user’s agreement when there is no available memory space. To cope with this situation, supporting swap with fast NVM storage has been suggested. Although swap in smartphones incurs serious slowing-down problems in I/O operations during saving and restoring the context of apps, NVM has been shown to resolve this problem due to its fast I/O features. Unlike previous studies that only focused on the management of NVM swap itself, this article discusses how the memory management system of smartphones can be further improved with NVM swap. Specifically, we design a new page reclamation algorithm for smartphone memory systems, which considers the following: (1) storage types of each partition (i.e., file system for flash storage and swap for NVM), and (2) access hotness of each partition including operation types and workload characteristics. By considering asymmetric I/O cost and access density for each partition, our algorithm improves the I/O performance of smartphones significantly. Specifically, it improves the I/O time by 15.0% on average and by up to 35.1% compared to the well-known CLOCK algorithm. |
| first_indexed | 2024-03-10T00:01:27Z |
| format | Article |
| id | doaj.art-882f2d62f5824e72baccd9b34e5280e6 |
| institution | Directory Open Access Journal |
| issn | 2079-9292 |
| language | English |
| last_indexed | 2024-03-10T00:01:27Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Electronics |
| spelling | doaj.art-882f2d62f5824e72baccd9b34e5280e62023-11-23T16:16:03ZengMDPI AGElectronics2079-92922022-01-0111338610.3390/electronics11030386Storage Type and Hot Partition Aware Page Reclamation for NVM Swap in SmartphonesHyejung Yoon0Kyungwoon Cho1Hyokyung Bahn2Department of Artificial Intelligence and Software, Ewha University, Seoul 03760, KoreaEmbedded Software Research Center, Ewha University, Seoul 03760, KoreaDepartment of Computer Engineering, Ewha University, Seoul 03760, KoreaWith the rapid advances in mobile app technologies, new activities using smartphones emerge every day including social network and location-based services. However, smartphones experience problems in handling high priority tasks, and often close apps without the user’s agreement when there is no available memory space. To cope with this situation, supporting swap with fast NVM storage has been suggested. Although swap in smartphones incurs serious slowing-down problems in I/O operations during saving and restoring the context of apps, NVM has been shown to resolve this problem due to its fast I/O features. Unlike previous studies that only focused on the management of NVM swap itself, this article discusses how the memory management system of smartphones can be further improved with NVM swap. Specifically, we design a new page reclamation algorithm for smartphone memory systems, which considers the following: (1) storage types of each partition (i.e., file system for flash storage and swap for NVM), and (2) access hotness of each partition including operation types and workload characteristics. By considering asymmetric I/O cost and access density for each partition, our algorithm improves the I/O performance of smartphones significantly. Specifically, it improves the I/O time by 15.0% on average and by up to 35.1% compared to the well-known CLOCK algorithm.https://www.mdpi.com/2079-9292/11/3/386smartphonepage reclamationmemory swapstorageNVM |
| spellingShingle | Hyejung Yoon Kyungwoon Cho Hyokyung Bahn Storage Type and Hot Partition Aware Page Reclamation for NVM Swap in Smartphones Electronics smartphone page reclamation memory swap storage NVM |
| title | Storage Type and Hot Partition Aware Page Reclamation for NVM Swap in Smartphones |
| title_full | Storage Type and Hot Partition Aware Page Reclamation for NVM Swap in Smartphones |
| title_fullStr | Storage Type and Hot Partition Aware Page Reclamation for NVM Swap in Smartphones |
| title_full_unstemmed | Storage Type and Hot Partition Aware Page Reclamation for NVM Swap in Smartphones |
| title_short | Storage Type and Hot Partition Aware Page Reclamation for NVM Swap in Smartphones |
| title_sort | storage type and hot partition aware page reclamation for nvm swap in smartphones |
| topic | smartphone page reclamation memory swap storage NVM |
| url | https://www.mdpi.com/2079-9292/11/3/386 |
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