Messages in this thread | | | From | (Eric W. Biederman) | Subject | Re: [PATCH] sysctl: Allow /proc/sys without sys_sysctl | Date | Wed, 12 Jul 2006 09:32:02 -0600 |
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Andi Kleen <ak@suse.de> writes:
>> So it will correctly handle that sysctl being compiled out, and >> the fallback to using /proc. The code seems to have been >> doing that since it was added to glibc in 2000. > > Using /proc is extremly slow for this.
How so it is the same code in the kernel. Is open much slower than sys_sysctl?
> You added significant cost to each program startup.
Not each program only the ones that use pthreads.
> I still think it's a good idea to simulate that sysctl and printk > the others.
To reduce the noise something like that makes sense. I'm going to see if I can get glibc to use uname which should have the same effect.
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