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-   -   Slow System After 2.6 Kernel Compile/Install (http://www.linuxquestions.org/questions/slackware-14/slow-system-after-2-6-kernel-compile-install-312328/)

isoFlux 04-12-2005 04:38 AM

Slow System After 2.6 Kernel Compile/Install
 
ive running an almost stock Slackware 10.0 distro for a while now and i thought that i'd experiment and move from the 2.4.26 to the newest kernel 2.6.11.7. i downloaded a fresh source tarball from kernel.org and used menuconfig to add in just the options and modules i need for my system. i then ran "make" and "make modules_install". i copied System.map and arch/i386/boot/bzImage to my /boot directory and soft-linked to them for lilo.

parts of "ls -l /boot"
Code:

lrwxrwxrwx  1 root root      29 2005-04-12 02:21 System.map -> /boot/System.map-ide-2.6.11.7
-rw-r--r--  1 root root 1033615 2005-04-12 02:12 System.map-ide-2.4.26
-rw-r--r--  1 root root 1033615 2005-04-12 02:20 System.map-ide-2.6.11.7

Code:

lrwxrwxrwx  1 root root      26 2005-04-12 02:20 vmlinuz -> /boot/vmlinuz-ide-2.6.11.7
-rw-r--r--  1 root root 1248111 2004-06-14 19:29 vmlinuz-ide-2.4.26
-rw-r--r--  1 root root 2150376 2005-04-12 02:19 vmlinuz-ide-2.6.11.7

linux-specific portion of "cat /etc/lilo.conf"
Code:

image = /boot/vmlinuz
  root = /dev/hda2
  label = Slack
  append = "hdc=ide-scsi"
  read-only

now, it compiled and booted fine, however, i am noticing a significant decrease in speed. i am running an Athlon XP 3200+ Barton on an NForce2 chipset (ABit NF7-S motherboard, nothing OC'd). i notice this during start up (ldconfig and such run noticably slower), as well as normal stuff in X (im running Gnome 2.6 right now). i have my CPU option set specifically for the Athlon in the Processor family section. everything works without error, but its just noticably slower than before.

__J 04-12-2005 04:45 AM

what's the output of:

hdparm -d /dev/hda ( change hda to whatever your harddrive is if it's ide)

isoFlux 04-12-2005 03:15 PM

"hdparm -d /dev/hda" returned that dma was 0 (off). so, i poked around in my kernel config and module'd all of the IDE DMA drivers, compiled/installed, rebooted, then ran lsmod. i compiled that module into my kernel directly and reset (its the AMD/NForce driver). everything seemed a bit faster and "hdparm -d /dev/hda" returns a 1 (on). i am pretty sure that this solved my problems. thankyou very much :)

__J 04-12-2005 03:41 PM

no problem :)


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