: There shouldn't be much of any I/O waiting even with a hard drive : for compilations. Apache (and other) builds are going to be limited : by serialization within the Makefile and /bin/sh sequences which wind : up doing a lot of fork/exec/wait's.
I should note that there will be one slight difference. Even though disk I/O will minimally impact the build (particularly on the second go-around), file operations can sometimes block for very short periods of time in this situation, so the scheduler is going to be exercised a lot more verses testing with simple cpu-bound for(;;); loops. -Matt Matthew Dillon <dil...@backplane.com>