How Fast Does Your Macbook Pro Start Up!!!

ILOVEMYMBP2.2g

macrumors regular
Original poster
Jun 23, 2007
113
0
hey guys, ive has my SR mbp since they came out in july, and sometimes it gives me a 22 second boot time and sometimes its like a minute and i was wondering if any of you knew why that happens, and also if all yall could tell me how fast your mbp boots up, thanks guys and gals
 

Makosuke

macrumors 603
Aug 15, 2001
6,154
343
The Cool Part of CA, USA
May or may not explain your experience, but OSX caches a bunch of stuff on startup, and if nothing has changed the next time you start up, it just uses that cache and can start up MUCH faster.

Because of this, if it's just a "regular" boot when you haven't installed anything or manually cleaned out caches, it's usually very quick. If you are restarting from a software update, then it needs to do a "full" boot, and takes maybe 20 or 30 seconds longer.

In my experience the part that this affects most is the part where you see the progress bar; when it's a cached boot, the progress bar is onscreen for about 3 seconds. When not, maybe 20 seconds.

I believe if it was a forced reboot the system will also do a disk check at restart, which happens while the spinner is onscreen. Not positive about this, but I seem to notice it taking a lot longer after a panic.

My 1st-gen 17" takes maybe 30 seconds to boot, for reference.

Does the MacOS do a RAM test these days? That'd also affect boot times if you have more RAM...
 

ILOVEMYMBP2.2g

macrumors regular
Original poster
Jun 23, 2007
113
0
thank you very much, your post was very helpful, and definately explained everything that i was wandering, this is why i love the users on this site, yall are so helpful, i just want to really thank you for your post soo, thank you very much