KernelDesktop

kernel-desktop specifications

create kernel for desktop computers, oriented to architectures used as desktops: ppc, x86, amd64 (there is no ia64 support)
not so loaded as main PLD kernel, no full grsec, no vserver
add patches improving latency and other tasks useful on desktops

preemptrt (RT):
- realtime-preempt patch by Ingo Molar
  this patch contains many changes from -mm tree thus kernel using it may be very unstable or unusable
ck (CK):
- Con Kolivas desktop patches
  those patches are obsolete in current kernel versions.
grsec_minimal (GR):
- grsecurity for /proc: in PLD noone can live without grsecured /proc, even on desktops
laptop (LAP):
- simply changes HZ from default 1000 to 100, this should improve on-batery time, but decreases corectness of some programs using
  timer a lot (even 'time' in shells is not very reliable)
  example: played some music with mplayer, time:
```
HZ=100:
real 32m24.907s  user  0m4.420s  sys 0m0.780s
HZ=1000:
real 32m25.936s  user 0m22.736s  sys 0m7.582s
```

More patches:

now on branch LINUX_2_6_17

Exact description:

iBook G4: 1.3GHz, 768MB RAM, Radeon Mobility 9200
- - suspend2 (suspend to disk) does not work
- - fails to detect lpj/bogomips correctly, adding lpj=3333333 helps
- + no problems with suspend to ram
- + AirPort II works well (bcm43xx)
- + fbsplash works
- + swap prefetch (CK-patch part) works
iBook G4: 1.3GHz, 768MB RAM, Radeon Mobility 9200
- - FATAL: no hardware is working because of problems with genirq
Athlon64 2GHz, 1GB RAM, some NVidia board, NVidia GeForce 2 MX 200
- * suspend2 works, but there are issues with clock after resuming
- + ext3 cache works fine
Athlon64 2GHz, 1GB RAM, some NVidia board, NVidia GeForce 2 MX 200
- + did not have problems with genirq, unlike on other archs/computers
- - sometimes is was locking in kernel-mode for a long time (5 seconds)

Exact description:

iBook G4: 1.3GHz, 768MB RAM, Radeon Mobility 9200
- - does not even leave OpenFirmware console
iBook G4: 1.3GHz, 768MB RAM, Radeon Mobility 9200
- - fails to detect lpj/bogomips correctly, adding lpj=333333 helps
  NOTE: this lpj is different than in 2.6.17, depends on HZ ?
- + suspend2 (2.2.9) works, no more problems with X
- + no problems with suspend to ram
- + AirPort II works well (bcm43xx)
iBook G4: 1.3GHz, 768MB RAM, Radeon Mobility 9200
- - fails to detect lpj/bogomips correctly
- ? no further tests

Not started. CK patch is missing.

If you are using CK patch check the page to get some info about it. Then install schedtool and start using schedtool -I !
If you own Macintosh PowerPC computer try adding noisapnp and i8042.nopnp to kernel cmdline to suppress some ugly warnings about non-existing device.