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Operating Systems

Removing the Big Kernel Lock 222

Corrado writes "There is a big discussion going on over removing a bit of non-preemptable code from the Linux kernel. 'As some of the latency junkies on lkml already know, commit 8e3e076 in v2.6.26-rc2 removed the preemptable BKL feature and made the Big Kernel Lock a spinlock and thus turned it into non-preemptable code again. "This commit returned the BKL code to the 2.6.7 state of affairs in essence," began Ingo Molnar. He noted that this had a very negative effect on the real time kernel efforts, adding that Linux creator Linus Torvalds indicated the only acceptable way forward was to completely remove the BKL.'"

Comment Re:Someone (Score 1) 471

Or, if you have a perl interpreter with the LWP::UserAgent module (included in ActivePerl), you can use this script :
#!/usr/bin/perl -w

use LWP::UserAgent;

open FILES, "<utilities.txt";
while( <FILES> )
{
chomp;
my ( $filename ) = $_ =~ /.+\/(.+)/;
my $request = LWP::UserAgent->new->get( $_ , ':content_file' => $filename );
}
close FILES;

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