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>log-structured I/O management built into SSDs is seriously sub-optimal for databases and apps that use log-structured I/O as well This assert piqued my intere
by rodionos 11y ago
>log-structured I/O management built into SSDs is seriously sub-optimal for databases and apps that use log-structured I/O as well
This assert piqued my interest given that my hands-on experience with HBase speaks to the contrary. The paper by SanDisk they refer to https://www.usenix.org/system/files/conference/inflow14/inflow14-yang.pdf https://www.usenix.org/system/files/conference/inflow14/infl... seems to suggest that most of the issues are related to sub-optimal degragmentation by the disk driver itself. More specifically, the fact that some of the defragmentation is unnecessary. Hardly a reason to blame the databases and can be addressed down the road. After all, GC in Java is still an evolving subject.