Thanks, Bear. I think, though, that when you are running out of disk
space, performance becomes secondary as the priority shifts towards
getting as much space as you can.
So, when you don't have space you prefer a low reservation level and
when you do have abundant space, the reservation level doesn't matter.
That's why I would set the reservation at a level where the necessary
system processes are allowed to function with sufficient space but not
much above that.
Vesa
17.10.2011 22:52, Bear Giles wrote:
A major reason for that space is liquidity, for lack of a better
phrase. If you have 5% reserved you can probably allocate a new block
near your existing file. If you only have, say, 1%, you will probably
have a lot more thrashing.
However this all assumes the same file size distribution as in the
past. It may be better, or it may be worst, with gigabyte media files.
Shudder. Imagine the thrashing with a poorly distributed video file.
On Oct 17, 2011 11:45 AM, "Vesa Paatero" <vpaat...@lavabit.com
<mailto:vpaat...@lavabit.com>> wrote:
Hello,
When Ubuntu installers create disk partitions, they reserve the
default 5% of blocks for root-only use. For nowadays hard disks,
however, that percentage can make dozens of gigabytes, which seems
much more than the necessary/reasonable amount for that purpose.
People can change the reserved size afterwards by using tune2fs if
they know that such a reservation takes place... but since Ubuntu
is aiming to be easy-to-use distro, particularly suited for those
who don't know the stuff "under the hood", it would be best if the
installer set the optimal size of the root-only reservation
automatically.
So, how about if some people with a good idea of the disk usage of
the basic system services decide what the right amount to be
reserved (as a function of disk space?) is and then someone who
knows the installation scripts could make the necessary changes there?
Should I add an entry about this into some database.. the bug
database, the brainstorm system or what others there are?
Thanks for considering it,
Vesa
--
Ubuntu-devel-discuss mailing list
Ubuntu-devel-discuss@lists.ubuntu.com
<mailto:Ubuntu-devel-discuss@lists.ubuntu.com>
Modify settings or unsubscribe at:
https://lists.ubuntu.com/mailman/listinfo/ubuntu-devel-discuss
--
Ubuntu-devel-discuss mailing list
Ubuntu-devel-discuss@lists.ubuntu.com
Modify settings or unsubscribe at:
https://lists.ubuntu.com/mailman/listinfo/ubuntu-devel-discuss
