From: Derek Glidden <dglidden@illusionary.com>
To: linux-kernel@vger.kernel.org
Subject: kapm-idled no longer idling CPU?
Date: Thu, 29 Nov 2001 13:58:39 -0500 [thread overview]
Message-ID: <3C06855F.22AD79C4@illusionary.com> (raw)
I posted this question about a month ago, but haven't seen a response
since, so I'm reposting.
I'm having a problem with all recent 2.4 systems that when any
application that uses more than very minor system resources is running,
(i.e. mozilla, netscape, xemacs, apache, Tomcat, just to name a few
common ones I've seen this behaviour with) kapm-idled no longer receives
scheduling time from what I can tell and I assume that means my CPU is
never getting idled when nothing is scheduled.
I'm pretty sure this is a legit problem and not just kapm-idled
reporting its time incorrectly since my laptop has gone from about 2-1/2
hours of battery life in early 2.4 versions to less than 1 hour of
battery life under the same conditions for recent kernels. Plus, if I
exit everything until I'm just sitting at a shell prompt, I'll see
kapm-idled start to receive time again. (Of course, the laptop isn't
much fun when it's not running anything...)
I've seen this on a number of laptops and desktop machines since about
2.4.9 or so.
--
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
#!/usr/bin/perl -w
$_='while(read+STDIN,$_,2048){$a=29;$b=73;$c=142;$t=255;@t=map
{$_%16or$t^=$c^=($m=(11,10,116,100,11,122,20,100)[$_/16%8])&110;
$t^=(72,@z=(64,72,$a^=12*($_%16-2?0:$m&17)),$b^=$_%64?12:0,@z)
[$_%8]}(16..271);if((@a=unx"C*",$_)[20]&48){$h=5;$_=unxb24,join
"",@b=map{xB8,unxb8,chr($_^$a[--$h+84])}@ARGV;s/...$/1$&/;$d=
unxV,xb25,$_;$e=256|(ord$b[4])<<9|ord$b[3];$d=$d>>8^($f=$t&($d
>>12^$d>>4^$d^$d/8))<<17,$e=$e>>8^($t&($g=($q=$e>>14&7^$e)^$q*
8^$q<<6))<<9,$_=$t[$_]^(($h>>=8)+=$f+(~$g&$t))for@a[128..$#a]}
print+x"C*",@a}';s/x/pack+/g;eval
usage: qrpff 153 2 8 105 225 < /mnt/dvd/VOB_FILENAME \
| extract_mpeg2 | mpeg2dec -
http://www.cs.cmu.edu/~dst/DeCSS/Gallery/
http://www.eff.org/ http://www.anti-dmca.org/
next reply other threads:[~2001-11-29 18:59 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-11-29 18:58 Derek Glidden [this message]
2001-11-30 11:50 ` kapm-idled no longer idling CPU? Alan Cox
2001-11-30 12:34 ` Andreas Steinmetz
2001-11-30 13:23 ` Alan Cox
2001-11-30 15:46 ` Andreas Steinmetz
2001-12-03 7:03 ` Tim Connors
-- strict thread matches above, loose matches on Subject: below --
2001-11-30 12:57 Borsenkow Andrej
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