Google Chrome

[Billy Crook]

On Fri, Sep 5, 2008 at 19:57, Monty J. Harder <mjharder at gmail.com> wrote:
> Wow.  I had no idea.  Here I thought ps got that info from an internal
> kernel data structure that wasn't manipulable by userland.  That suggests
> some really ugly possibilities.  Don't know how 'ugly' it would be (aside from processes making it difficult to tell what their PID was if you weren't watching when they were launched)

Here's some code from Hal Dustin (attached).  You can demonstrate on
your own computer that it is possible for a process to change its
process name in ps without having to terminate, and create a new
process.  So chrome could easily do this.  (If it's what the user
wanted.)  On computers with a single user, I think it could be rather
handy to have at least an option for this.  Wouldn't it be neat to
look, and see 'oh, *that* site has used a good hour of CPU time!'.  If
it were so trivial to see resource utilization per-website, it would
put pressure on web developers to be more efficient, and that is a win
for users and browser developers.  Side note: It appears gnome's
'System Monitor' still displays the file name.

Download it, then compile it with:
[bcrook at One Desktop]$ gcc time.c -o time

Run it and get a shell back:
[bcrook at One Desktop]$ ./time &
[1] 15146

Then using the PID number bash just gave you, grep ps' output for it,
and watch the PID stay the same, but the title (usually the binary's
name) change:
[bcrook at One Desktop]$ while true; do ps aux | grep 15146 | grep -v
grep ; sleep 2; done
bcrook   15146  0.0  0.0   3924   516 pts/2    S    22:07   0:00 You
would see my binary's name here, but instead, I'll tell you the time
is: 2008-09-05 22:08:27
bcrook   15146  0.0  0.0   3924   516 pts/2    S    22:07   0:00 You
would see my binary's name here, but instead, I'll tell you the time
is: 2008-09-05 22:08:29
bcrook   15146  0.0  0.0   3924   516 pts/2    S    22:07   0:00 You
would see my binary's name here, but instead, I'll tell you the time
is: 2008-09-05 22:08:31
bcrook   15146  0.0  0.0   3924   516 pts/2    S    22:07   0:00 You
would see my binary's name here, but instead, I'll tell you the time
is: 2008-09-05 22:08:33
bcrook   15146  0.0  0.0   3924   516 pts/2    S    22:07   0:00 You
would see my binary's name here, but instead, I'll tell you the time
is: 2008-09-05 22:08:35
^C

[Ctrl]+[c] when done.  Then kill ./time by its PID
[bcrook at One Desktop]$ kill 15146
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