Method for realizing quick data storage under Linux
A fast storage and data caching technology, applied in electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of time consumption, reduce the efficiency of the acquisition system, etc., to achieve the effect of improving storage speed and eliminating copying
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[0031] The present invention will be described in more detail below in conjunction with the accompanying drawings and specific embodiments.
[0032] Step 1, after the OMAP processor is powered on, the ARM core starts Linux, enters process 202, mounts the tempfs file system, and then sets up two data cache files (such as DataCacheFile_a and DataCacheFile_b) under the mount point. The DSP core enters process 302 and waits for the search address notification.
[0033] Step 2, the ARM core enters process 203, divides the two cache files into blocks with a size of 4K bytes, press figure 1 The file identifiers and block serial numbers of all blocks are initialized as shown, and then the DSP core is notified to search for the storage address of the data cache file on SDRAM.
[0034] Step 3: After the DSP core receives the search address interrupt, it enters into process 303 to search for the storage addresses of the blocks of the two cache files in the SDRAM, and save the addresses....
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