[Openmcl-devel] Speeding up I/O
Ron Garret
ron at flownet.com
Thu Jul 23 13:00:26 PDT 2009
I'm trying to crunch a semi-large file (~500MB) and just reading the
data via (while (read-line f nil nil)) take about seven times longer
than it does in, say, Python (73 seconds versus 12). Is there some
low-level I/O primitive that I can call that bypasses all the high-
level stream stuff that would speed this up? %ioblock-unencoded-
character-read-vector maybe? Or %ioblock-tyi? Can I call these
directly without screwing things up?
rg
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