On Fri, 2010-04-23 at 18:07 +0100, Alan Cox wrote:
The V7 manual doesn't quite agree with you. The sticky bit simply indicates that the code segment for the binary should be kept around in memory/swap (fast storage) not discarded. It might get set on a tiny number of root apps to tune performance.
Yes, I'd forgotten about the "keep it in swap" implications. Swap was of course always a separate partition and accessed contiguously, not via normal filesystem operations. That made reloading swapped segments faster than accessing the original file.
poc