Hi all, Any comments?
i mentioned in some remarks to benno how important i thought it was to preallocate the files used for hard disk recording under linux. i was doing more work on ardour yesterday, and had the occasion to create some new "tapes", of lengths from 2 to 40 minutes. the simple act of creating 24 5 minute WAV files on ext2, files in which every block has been allocated, takes at least 1 minute, perhaps as much as 2. i create the files by first opening them, then writing a zero byte every blocksize bytes (blocksize comes from stat(2)), except for the WAV header at the beginning. i hadn't done this in a while, but it reminded me of the near-impossibility of expecting the FS code to allocate this much disk space in real time under ext2. If someone knows of a faster way to allocate the disk space, please let me know. Its not that I have a problem right now, just wanted to point out this behaviour. --p
