Re: [GIT PULL] kdbus for 4.1-rc1

Linus Torvalds
2015-04-15T18:18:49Z

On Wed, Apr 15, 2015 at 11:11 AM, Greg Kroah-Hartman
<gregkh@linuxfoundation.org> wrote:
> On Wed, Apr 15, 2015 at 01:33:27PM -0400, Steven Rostedt wrote:
>>
>> I'll argue that you can't fix the later one. One thing that I've observed over
>> the years of having faster computers is, as soon as you make it faster, people
>> will write slower software.
>>
>> Currently the issue is that we have thousands of dbus queries, you make dbus
>> 10x faster, I guarantee that people will write software with 10 thousand dbus
>> queries and we are no better off than we are today.
>
> Then they get to buy a faster machine :)

Is there actually a performance issue?

I've seen this claimed, but I have never seen any actual numbers. What
speeds up? By how much? is it actually measurable?

Maybe they've marched past me in this thread-from-hell. But I can't
recall having seen any (not now, not before).

That said, I think the more serious issue is that if Luto complains
about the capability-capturing code being completely broken, then
people need to take that *seriously*.

Linus