Question for Gene Heskett about slow Firefox launch

Ric Moore wayward4now at gmail.com
Wed Jan 17 06:36:21 UTC 2007


On Wed, 2007-01-17 at 00:22 -0500, Gene Heskett wrote:
> On Tuesday 16 January 2007 11:58, John Wendel wrote:
> >Gene Heskett wrote:
> >
> >In the thread "Re: How NSA access was built into Windows"
> >
> >
> >I believe you will have to build a generic kernel.org kernel
> >configured without that support, something I have underway right now,
> >using 2.6.20-rc4.  I was amazed at the number of options I found
> >turned on that a proper 'make oldconfig' should absolutely never have
> >turned on.  My scripts take care of everything but grub.conf for a
> >kernel install, so when its done all I should have to do is reboot
> >since I'm already running 2.6.20-rc4.  Several things I found may even
> >account for the apparent slowness of later kernels.  Things like 15
> >seconds to launch firefox on an xp-2800 athlon with a gig of ram?
> >
> >
> >Gene,
> >
> >Could you share some of these "Several things I found"? I'm having the
> >same problem with slow firefox launching on a very similar system. I'm
> >currently running vanilla kernel 2.6.19.2.
> >
> >Thanks,
> >
> >John
> 
> Basicly I did a make xconfig in the kernel tree I had already built and 
> was running, with an eye to getting rid of that which isn't of any 
> perceived usefullness to me.  If, as you go thru the xconfig screens item 
> by item, you read the help that pops into the lower right corner of the 
> window, and it says "if you don't know what this option does, you 
> probably don't need it, say N".  By the time I got down to the bottom 
> of 'block devices' I'll bet I'd turned off a hundred things that were 
> being built, and which had no earthly use to me, but the previous 'make 
> oldconfig' had enabled them.  With this newer compiler seemingly being as 
> slow as it it, that cut the build time by about 7 minutes, down to 24 
> IIRC, but I can recall building a kernel for this machine in under 8 
> minutes back in the mists of time.  And the system, once booted to it, 
> does seem a bit snappier at some operations.  I think I can probably cut 
> that much more the next time I have half an hour to work in an xconfig 
> window.
> 
> Firefox launch times?  Not a huge speedup there so far.  Sorry.
Are you going to try to disable SElinux in the kernel and see what
happens?? Ric

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