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An Efficient Way to Allocate and Read Directory Entries in the Ext4 File System
 Pazdera, Radek ; Michal, Bohumil (oponent) ; Kašpárek, Tomáš (vedoucí práce)
The aim of this thesis is to improve the performance of sequential directory traversal in the ext4 file system. The HTree data structure that is used to store directories in ext4 at the moment works very well for random accesses, however, it is not optimal when it comes to traversing a directory sequentially. This thesis investigates the issue; it explores the implementation of ext4 and the associated Linux kernel subsystems. To assess the performance of the directory index, a set of test cases and benchmarks was implemented. Based on the analysis, an optimization was designed and implemented to the ext4 driver within the Linux kernel. The implementation was tested, evaluated, and compared to other native Linux file systems in the last chapter of this document.
Úplný záznam
An Efficient Way to Allocate and Read Directory Entries in the Ext4 File System
 Pazdera, Radek ; Michal, Bohumil (oponent) ; Kašpárek, Tomáš (vedoucí práce)
The aim of this thesis is to improve the performance of sequential directory traversal in the ext4 file system. The HTree data structure that is used to store directories in ext4 at the moment works very well for random accesses, however, it is not optimal when it comes to traversing a directory sequentially. This thesis investigates the issue; it explores the implementation of ext4 and the associated Linux kernel subsystems. To assess the performance of the directory index, a set of test cases and benchmarks was implemented. Based on the analysis, an optimization was designed and implemented to the ext4 driver within the Linux kernel. The implementation was tested, evaluated, and compared to other native Linux file systems in the last chapter of this document.
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