| 1 |
Stefan de Konink wrote: |
| 2 |
> ..very offtopic but how are you all compiling stuff like firefox on a |
| 3 |
> ram disk. Or is 8GB of ram very cheap suddenly? |
| 4 |
> |
| 5 |
|
| 6 |
Swap is your friend. The performance hit is the same as what you'd get |
| 7 |
compiling on disk if pages need to be swapped out. The performance is |
| 8 |
of course far superior for any pages that don't need to be swapped out. |
| 9 |
The big clean at the end is of course MUCH faster in a ram-disk. |
| 10 |
|
| 11 |
The beauty of tmpfs is that it performs no worse than disk in the worst |
| 12 |
case, and in the case of short-lived files it performs far better. If |
| 13 |
you write, use, and delete a file on disk (more than a few seconds |
| 14 |
apart) the kernel actually takes care to sync everything as if you cared |
| 15 |
about the file 10 minutes into the future. The kernel can also be far |
| 16 |
more opportunistic with how it swaps pages compared to how it flushes |
| 17 |
buffers - since there is a general understanding that when you write to |
| 18 |
a file you care about being able to read it back in a few days. |
| 19 |
-- |
| 20 |
gentoo-dev@l.g.o mailing list |
Archives