Tuesday, March 31, 2009

Super readahead(sreadahead)

http://yangxudongsh.blogspot.com/2009/01/sreadahead.html
http://code.google.com/p/sreadahead/

In the readme file, it explain the idea. When boot, try to read all those files needed. This is done by original readahead program. sreadahead further identify the partial file data needed(in memory) and order them with inode timestamp. So it need a kernel patch to log/read the inode timestamp(EXT3_IOC_INODE_JIFFIES).


sreadahead-pack do the analysis work, and put the result into /etc/readahead.packed

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