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Re: Threaded Code Not Faster Than Non-Threaded -- Why?

by kschwab (Priest)
on Jan 06, 2014 at 22:22 UTC ( #1069593=note: print w/replies, xml ) Need Help??


in reply to Threaded Code Not Faster Than Non-Threaded -- Why?

Not related to your specific question, but perhaps related to the hackathon. I'm not sure if the hackathon rules would allow it, but there's an old LD_PRELOAD hack for ext filesystems that speeds up readdir() calls by doing them in inode order (which is somewhat correlated to disk layout). It's here: spd_readdir.c Thought it was worth mentioning since speeding up I/O would probably have a more meaningful effect.
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