In our previous episode, Ludo Brands said: > > > > The question is what is different in nautilus and midnight commander > > comparing to fpc directoy-listing functions that allows them to list > > directories correctly in the bug's case? > > > > The difference with other tools is that FPC gives a very small buffer to > getdents64. The strace for ls in the bug report > http://bugs.freepascal.org/view.php?id=23732 shows that only one > getdents is needed to get the full dir because the buffer size is much > bigger. > I don't know why getdents64 gets a buffer of only 280 bytes from FPC. > This seems to me ridiculously low in modern systems and it has also an > impact on the speed of findFirst/findNext. >
Maybe even wrong. I checked the FreeBSD implementation for the buffersize (1kb btw), and there is the following comment (probably based on some comment from FreeBSD sources): "Getdents requires the buffer to be larger than the blocksize. This usually the sectorsize =512 bytes, but maybe tapedrives and harddisks with blockmode have this higher?" Maybe Linux has a similar requirement. _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
