The kernel source has about 10 times more files. The total filesize is about 10 times larger as well. linux-3.1-rc3$ ls -R -l |wc -l 46855 linux-3.1-rc3$

The kernel source has about 10 times more files. The total filesize is about 10 times larger as well. linux-3.1-rc3$ ls -R -l |wc -l 46855 linux-3.1-rc3$ du -h -s 500M rails$ ls -R -l |wc -l 4141 rails$ du -h -s 59M .