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Alex Shinn <alexshinn@xxxxxxxxx> writes: > Yes, exactly. But R5RS ports built on native ports can offer high performance. Not as high as the primitive I/O layer. >> Can you show me how the C library does it? I can't find it offhand. > > See the O_DIRECT option to open(2). But this is about cache at the OS level (at least that's what the FreeBSD man page says), not buffering at the C library level, which deals with FILE* descriptors. What does this have to do with seeking? -- Cheers =8-} Mike Friede, Völkerverständigung und überhaupt blabla