COMPILATION DIRECTIVES : The HSFQ process scheduler, HSFQ packet scheduler and the Lazy Receiver Processing features can be turned on or off while compiling the kernel using xconfig. The kernel needs to be compiled with the SMP option OFF. The code for the HSFQ process scheduler is mainly in kernel/sched_hsfq.c. The code for the HSFQ packet scheduler is mainly int net/sched/sch_hsfq.c. The LRP code is distributed in a number of files, and can be found by doing a grep on LRP. The code for Cello is in drivers/block/cello.c. This code is provided for reference purposes only and is NOT stable. We do not recommend compiling this code (and do not currently provide support in the top level makefile). A stable version of Cello with documentation and sample applications will be made available later this summer.