30 May
2006
30 May
'06
3:26 p.m.
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Lee Revell escribió:
Thanks a LOT, Lee!
On Tue, 2006-05-30 at 11:59 -0500, Gian Paolo Mureddu
wrote:
I was thinking on adding some low-latency and improved libata drivers
amongst other stuff (like staircase sched from CK sources), and if I
was going to do that anyway, I thought including the low-latency
patches or PAM controls would have been a plus.
For instance Fedora Core 5 has the version of PAM
required...
Say, if I grab my kernel's .srpm, modify the spec to it includes
this patch, make sure that this patch will play nice with the
rest of the Fedora patches and am successful to build and install
the generated kernel, how would I make use of the PAM controls to
set user-space real-time priorities?
Why do you want to recompile the kernel? It should Just Work with
the FC5 kernel. In fact there is no config option to disable the
nice and rtprio rlimits. This is why it's easier than realtime LSM
- no kernel patching is required. PS: I read the thread, but the e-mail containing
the pam controls
was accidentally erased, were those the ones needed with this
patch?
Add to /etc/security/limits.conf something like:
* hard rtprio 99 * hard nice
-20 * soft nice -20 * hard
memlock 500000
There is some anecdotal evidence that "memlock" does not work. I
have not investigated it yet.
Lee
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