How does NetBeans scale with available resources like memory size, CPU power, number of CPU cores, I/O speed? Can features use the extra resources for better performance?

Effect of memory size

Measured on WinXP SP3, JDK 1.6.0_16, Netbeans 6.9 20100615, limewire j2se project. Startup and scanning are cold measurements.

Test -Xmx1024m -Xmx512m -Xmx256m -Xmx128m
Startup 11810 ms 11450 ms 11662 ms 11369 ms
Scanning 106953 ms 107093 ms 108046 ms 135359 ms
Up-to-date check 3001 ms 3043 ms 2980 ms 2494 ms

Effect of I/O speed

Measured on WinXP SP3, JDK 1.6.0_16, Netbeans 20100630, limewire j2se project.

Test Source roots/Userdir on HDD Source roots on RAM disk, Userdir on HDD Source roots/Userdir on RAM disk
Cold scanning 125952 ms 97703 ms 91062 ms

Up-to-date check Cold Warm
on HDD 5750 ms 2995 ms
on RAM disk N/A 2745 ms
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