Archive for October, 2008

Initial VMA data and vfork()

Saturday, October 18th, 2008

As I am going to play with the VMA code and its main data structure (a red-black tree), I have started to collect some data by using systemtap, and got a bit impressed by the number of times find_vma() is called by some processes, as shows the table below.

PID
exec name
nr calls (5 seconds)
doing…

21984
cc1
1570
Compiling Linux kernel

11533
X
13252
Switching [...]

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A new blog

Tuesday, October 7th, 2008

While reading the 2.6.27-rc9 announcement email today (looking for fixed bugs, of course) I found this:

PS. I already bugged people on the git lists with this, but since I’m
totally shameless and can’t help but hope that some random kernel person
also does tcl/tk or just wants to help improve my kids-time-tracker, I can
just point to
http://torvalds-family.blogspot.com/2008/10/tracking-time-kids-spend-online.html
and hope [...]

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