Hi, Here is output (compressed this time) from my latency-profiler (updated for test4, you find it on my home page) streaming write, copy, read (Bennos) mmap002 (separate file, as it is a Don't do that) I also applied Andrew Mortons low latency patch and made the same tests. - And it does improve things, but not enough for this machine/relic. This is on a PPro180 with 96MB RAM... /RogerL -- Home page: http://www.norran.net/nra02596/