Progress in ODR Development: Data Processing, Interface Improvements, and Performance Enhancements
This document outlines recent advancements in ODR development focusing on data writing to disk, message transactions, and interfacing with DOOCS. Key performance improvements have been noted in multi-channel access, with maximum performance achieved for three channels. However, adding a fourth channel does not enhance transfer rates. Performance testing for data written to a RAID array has shown a consistent maximum bandwidth of 300 MB/s. Future work includes stability tests, creating an event fragment database within DOOCS, connectivity testing with real LDA hardware, and further enhancements to data writing stability.
Progress in ODR Development: Data Processing, Interface Improvements, and Performance Enhancements
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Presentation Transcript
ODR development Progress in the following areas: • Data write to disk. • Tx message. • Interface to DOOCS and processing messages: a) setting up parameters, b) passing commands, c) passing messages to LDA, d) passing messages back to DOOCS
Performance (continuation) Improvements in performance when accessing more then one channel. The maximum performance achieved for 3-channels access. Adding additional Channel (4-channel access) does not yield improvement in transfer rate.
Performance (data to disk) Single channel. Data written to RAID array. Maximum bandwidth for the array: 300 MB/s. Adding active channel has no effect on the rate (remain constant). Best performance for scatter-gather scenario.
Future development/work in progress • Test code stability. • Create event fragment data base (inside DOOCS ?) • Test connectivity to LDA with the “real” LDA hardware • Improve/investigate data write to the disk (contiguous data buffer, stability of the rate, etc.).
