Not long ago, I griped about 2.6.13 being _very_ slow to boot and run. My original email is at the bottom.
I've since recompiled the kernel without SMP and Hyperthreading, and the system is _much_ faster. So, there is a problem with 2.6.13 and SMP or Hyperthreaded machines. Can anyone else confirm this? What should I do? Is there a kernel.org bugzilla? Or perhaps I should put it in the gentoo bugzilla? Any pointers would be appreciated... thanks. On Tue, 2005-09-27 at 12:11 +0930, Iain Buchanan wrote: > I just compiled 2.6.13-gentoo-r2 with mostly the same options as > 2.6.12-gentoo-r7 (my reference point). The first time I booted, it took > about 10-15 minutes on my 3GHz P4 laptop! I watched the gdm background > slowly display over about 30 seconds. > > I thought it might have something to do with the new default timer > frequency, which I set to 250Hz instead of 1000Hz (which is the default > for pre 2.6.13 kernels). According to various online sites, 250Hz > should still be just as usable, and may even use less power, increasing > my battery performance... > > So I changed the timer frequency back to 1000Hz, recompiled and now it > seems a little faster, but no where near 2.6.12. It now boots in maybe > 5 minutes, and the gdm theme takes about 5s to display. > > glxgears (not maximised) gives me about 30 fps with a radeon 9700! > > I checked the frequency governor, and the default is still > 'performance'. /proc/acpi/processor/CPU0/throttling shows the maximum > frequency is active as per normal. > > Other kernel options I changed are: > - support for software suspend added (could this be it? I definitely saw > the message that no valid suspend was found in my swapfile, > and /proc/swaps shows that I have swap enabled as per usual) > - removed unnecessary SCSI drivers (I don't have anything SCSI) > - removed SATA support (I definitely don't have SATA) > > Info: > Dell Ispiron 9100, 3 GHz HT Pentium 4 > 2.6.12 and 2.6.13: SMP support for 2 processors included > > I've seen 1 post online about the same thing - slow running 2.6.13, so > surely there must be some people in the world running it ok! Any help > on this would be appreciated. > > TIA, -- Iain Buchanan <[EMAIL PROTECTED]> -- [email protected] mailing list
