On Mon, 11 Feb 2008, Linus Torvalds wrote:
>
> The reporting limit has been arbitrarily set at 3%, which seems to be a
> pretty good cut-off, but I made it an option variable in case anybody
> would ever want to make it a dynamic cutoff.
Side note: that 3% isn't actually _too_ arbitrary. I did actually test
things a bit.
So it seems to be a good limit that ensures that you'll basically never
see more than one page worth of reporting (if you did, it wouldn't be a
very good summary). So in theory, if something is _just_ right and
really balanced out across a wide variety of directories, you can get 33
lines of output, but in practice it's unusual to get more than 10-15
entries.
In the kernel, the most spread out commit I've found so far is 18 entries:
CONFIG_HIGHPTE vs. sub-page page tables.
3% arch/powerpc/mm/
5% arch/sparc/mm/
6% arch/
5% include/asm-alpha/
3% include/asm-avr32/
3% include/asm-cris/
4% include/asm-ia64/
6% include/asm-m68k/
3% include/asm-mips/
7% include/asm-powerpc/
6% include/asm-sh/
4% include/asm-sparc64/
3% include/asm-um/
6% include/asm-x86/
3% include/asm-xtensa/
3% include/linux/
14% include/
7% mm/
53 files changed, 326 insertions(+), 132 deletions(-)
but it's not like I looked through all of them (and I'm sure you can get
more if you select just the right commit range to generate the diff).
The point being that a 4-percent cut-off would likely be so big that it
would have hidden the details in the above example.
A 2% cut-off is worth trying, though. It does get a bit more detail,
and the likelihood of it actually causing a 50-line report is probably
vanishingly small, so it might be worth playing around with. The above
18-entry example grows to 23 entries with a 2% limit, which is very
borderline on a traditional 80x24 terminal, but still just barely "one
page" which was my personal rule to aim for.
Linus
-
To unsubscribe from this list: send the line "unsubscribe git" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
