Nichtsdestotrotz bleibt der vorvorherige beitrag nach dem "wo laufen die programme" aktuell
zu deiner frage, die mich genauso interessiert, hab ich hier (wie immer auf macperformanceguide) eine allgemeine antwort gefunden:
weiter in den tiefen der seite, wird näher auf die apps eingegangen, finde ich nur grad nicht.
vorweggenommen sei, dass der gute mann mittlerweile eine SSD als BOOT Drive benutzt, und nicht mehr seine externe FW800
(Der artikel is teilweise von 2009, also fast veraltet
http://macperformanceguide.com/Mac-BootDriveDogma.html
http://macperformanceguide.com/Optimizing-Grades.html
"Conventional wisdom says that a fast boot drive is important to performance. This is absolutely true with single-hard-drive systems, because the boot drive is used for everything. But it’s a red herring for serious work with a properly configured Mac Pro, where the most important issue is speed of access to data, which should be separate from your boot/applications.
Since writing this page, in spite of the hard numbers on actual time saved, I’ve decided that I’m not going back to a hard drive for my boot/application volume. Find out why. (anmerkung: er benutzt nun eine SSD)
Except for the Mac Pro and XServe, all Macs today offer only a single internal drive. Users with single-drive-only systems should always opt for the fastest available internal hard drive for best performance (7200rpm or even a solid state drive). A fast internal drive retains the convenience and simplicity inherent to those systems, reducing the need to resort external add-on hardware. Such users might also consider a solid state drive.
Some Macs, like the MacBook Pro, can be enhanced with eSATA and/or Firewire 800 for specific applications as with Photoshop. Other Macs, like the MacBook and MacMini, are performance dead-ends—always consider present and future computing needs.
Mac Pro users who want the best performance from a single hard drive can follow a similar single-drive strategy, but this is discouraged because it results not only in lower performance, but a less robust system in the face of hard drive failure. The Mac Pro offers outstanding options for enhancing performance "
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Mac OS X application launch speed
When an application is started, Mac OS X will cache the entire application. Quitting and and then re-launching the application is then ultra-fast: it all comes out of the Mac OS X unified buffer cache (memory). That’s assuming you have adequate memory (install more if you don’t observe this behavior). Try it and see for yourself. Applications stay in the cache essentially forever unless the memory is needed for something else, so consider 4GB a bare minimum for a responsive system. See Checking memory use on Mac OS X.
With more than enough memory, you won’t have to quit an application to make room for another one. That’s the ultimate in speed—no launch time at all."
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"Application performance
Application performance is the time it takes to accomplish a task within an application, once it is launched and ready. The time required depends on CPU speed, memory, disk and network I/O.
Consider the time spent in the first two areas: system boot and application launch. The following times were measured on my 3.0GHz Mac Pro system, using a Firewire 800 boot drive:
Boot time: 40 seconds
Launch Photoshop first time: 9 seconds, 2nd time ~3 seconds
The 2nd launch of Photoshop CS4 is as fast as possible: Mac OS X has cached nearly everything from the first launch: boot drive speed does not come into play.
Assuming (unrealistically) that a faster drive could cut these times in half, the net savings would be about 23 seconds. However, I reboot about once a week at most. My net savings: about 3 seconds per day for booting. Add another 3 seconds each for 5 other programs and I’ve saved a whopping 18 seconds or so per day.
By comparison, I’ll spend hours every day running applications like Photoshop, DreamWeaver, Digital Photo Professional, etc. Those applications access images and files on an ultra-fast striped RAID."
