Hi there
After having seen many speed boost scripts in such sites as MacOSX Hints or MacNN, i decided to give a little try to a final script which would do the job my way.
This script (YARSC) should match the following concerns:
1.renice the user account, but not too much (-5 to -10)
2.renice the root processes to +5 to +10
3.renice individual processes, both user and root, like Finder, Dock, Window Manager (user) or coreservicesd, mDNSResponder (root).
(These were choosed after a long observation with the top command in Terminal: these processes are the ones which fill more CPU and memory usage)
4.write a script to set these priorities at login startup
5.the last command is used to free RAM back to start, so the script uses no RAM at all.
I finally decided to use Applescript and the "do shell" command to manipulate everything.
Once the script is ready, compile it as an app, put it in your login startup items, and restart.
Here is finally the YARSC version i think works the best (after many many tries):
USERNAME= your actual username
PASSWORD= your admin password
---begin---
do shell script "sudo renice -10 -u USERNAME" password "PASSWORD" with administrator privileges
do shell script "sudo renice +5 -u root" password "PASSWORD" with administrator privileges
set dnsPID to do shell script "ps -axww | grep '[/]mDNSResponder'| awk '{print $1}'"
do shell script "sudo renice -10 -p " & dnsPID password "PASSWORD" with administrator privileges
set corePID to do shell script "ps -axww | grep '[/]coreservicesd'| awk '{print $1}'"
do shell script "sudo renice -10 -p " & corePID password "PASSWORD" with administrator privileges
set finderPID to do shell script "ps -axww | grep '[/]Finder'| awk '{print $1}'"
do shell script "sudo renice -15 -p " & finderPID password "PASSWORD" with administrator privileges
set dockPID to do shell script "ps -axww | grep '[/]Dock'| awk '{print $1}'"
do shell script "sudo renice -15 -p " & dockPID password "PASSWORD" with administrator privileges
set littlePID to do shell script "ps -axww | grep '[/]LittleSnitchDaem'| awk '{print $1}'"
do shell script "sudo renice -5 -p " & littlePID password "PASSWORD" with administrator privileges
set logitechPID to do shell script "ps -axww | grep '[/]LCCDaemon'| awk '{print $1}'"
do shell script "sudo renice -5 -p " & logitechPID password "PASSWORD" with administrator privileges
set ouiPID to do shell script "ps -axww | grep '[/]SystemUIServer'| awk '{print $1}'"
do shell script "sudo renice -15 -p " & ouiPID password "PASSWORD" with administrator privileges
set pbsPID to do shell script "ps -axww | grep '[/]pbs'| awk '{print $1}'"
do shell script "sudo renice +15 -p " & pbsPID password "PASSWORD" with administrator privileges
set atsPID to do shell script "ps -axww | grep '[/]ATSServer'| awk '{print $1}'"
do shell script "sudo renice +15 -p " & atsPID password "PASSWORD" with administrator privileges
do shell script "sudo du -sx /" password "PASSWORD" with administrator privileges
---end---
Some observations:
1.At login, the script takes about 30 sec to run
2.Once the script applied, all the benchmarks i did show my Mac seems to have a speed boost about 30% in any operation, but Internet connections are the most increased
3.The original script is from Carl Bond (
http://www.carlbond.com/howto.html), specially all the shell script syntax
4.If you want to speed up the script at login, you can convert it to a full app, with a great freeware called "Platypus" (
http://www.raunvis.hi.is/~ssv/software.html). You can also delete the last command of the script, which takes about 15 sec by itself
5.All these results only make sense applied to my own machine (G3 500, 384Mb RAM, X.2.6). Don't know if it would make a dfifference with a G4 Bipro
6.Try it, use it, change it. You have nothing to loose (except your precious time)...
Say something
Vic
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