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IPhone 3G Performance with iOS 4.0 is terrible

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Re: IPhone 3G Performance with iOS 4.0 is terrible

#21

Post by neilc »

mkramlich wrote: post #13

I've seen claims in both directions. To play it safe, I'll keep my 3G on 3.x. There was only 1 new feature in iOS 4 (that also worked on 3G models) that attracted me anyway: the unified mailbox view thing. Actually I have a short list of desired improvements that might make it worth it, despite a speed drop: * photo synching to my desktop (so not limited to the lame select-up-to-4-then-email-them thing, which is way…

making the Back button in Safari take you back to a cached, post-rendered view of the previous page

This behavior is extremely frustrating. It is similarly annoying when Safari reloads a page because the previous copy has been reclaimed due to low RAM. Rather than flushing the previous version entirely, it would be much nicer for Safari to write the old version to flash. Reloading from flash would be much faster, and would also prevent the page content from changing on reload (e.g., Google Reader won't reload "read" items on reload).

Re: IPhone 3G Performance with iOS 4.0 is terrible

#22

Post by illumin8 »

It's worth mentioning that when you do an upgrade, the Spotlight process must go out and re-index all of the content on your phone. This is a background process that might take a few hours to complete, especially if you have a lot of content and email.

Most people are saying that after a few hours the phone is noticeably faster or at least back to normal.

I think what is happening here is this background Spotlight index is killing performance right after the upgrade, and people are mistaking this for terrible long term performance.

Re: IPhone 3G Performance with iOS 4.0 is terrible

#24

Post by agotterer »

illumin8 wrote: post #22

It's worth mentioning that when you do an upgrade, the Spotlight process must go out and re-index all of the content on your phone. This is a background process that might take a few hours to complete, especially if you have a lot of content and email. Most people are saying that after a few hours the phone is noticeably faster or at least back to normal. I think what is happening here is this background Spotlight in…

The moment after I upgraded, the phone was completely useless. I restarted twice and it picked up a little speed. Its now 24hours later and its still extremely slow and laggy.

Re: IPhone 3G Performance with iOS 4.0 is terrible

#25

Post by revetkn »

illumin8 wrote: post #22

It's worth mentioning that when you do an upgrade, the Spotlight process must go out and re-index all of the content on your phone. This is a background process that might take a few hours to complete, especially if you have a lot of content and email. Most people are saying that after a few hours the phone is noticeably faster or at least back to normal. I think what is happening here is this background Spotlight in…

I've been using 4.0 on my 3G since the initial betas were released. I was hoping the GM version would address the performance issues, but no luck - I've had it installed on my phone since it was released around WWDC, so I don't think this is a Spotlight issue. Glad the iPhone 4 is coming tomorrow; the 3G really is almost unusable for me at this point (Google Maps especially).

Re: IPhone 3G Performance with iOS 4.0 is terrible

#26

Post by cloudwalking »

joezydeco wrote: post #7
catch23 wrote: post #3

Earlier quoted context omitted.

I also didn't have any problems either. I'm currently using the gm seed, and it seems not much different (speed-wise) on my 3G compared to the previous OS version (I was using 3.1.2 before)

The GM seed is much better than some of the betas, but that's not saying much. Beta 3 on the 3G was especially bad. But all in all I think the overhead of all these new features are slowly overwhelming the 3G. The only thing really worth it is mail threading.

(pure speculation:) It may be possible to install Mail.app without iOS 4.

Re: IPhone 3G Performance with iOS 4.0 is terrible

#28

Post by tjmc »

Anyone noticed any changes regarding signal strength or reception for better or worse with iOS4? When I upgraded to OS3.1 and I went somewhere without coverage, my 3GS sometimes refused to come back from "No Service" until I either did a cold reboot or switched in and out of Airplane Mode. Then it would work fine again, so I suspect it was a software issue and not the network (Vodafone in Perth, Australia).

Has this happened to anyone else here and have you noticed any change in iOS4?

Re: IPhone 3G Performance with iOS 4.0 is terrible

#29

Post by obelix »

spicyj wrote: post #15
sabat wrote: post #12

Earlier quoted context omitted.

You can downgrade? Because I'd sure like to, until I get around to ordering the iPhone 4. There are guides or official ways of downgrading?

Yeah, just download your firmware from this page, then option-click Restore in iTunes and select the IPSW. http://www.felixbruns.de/iPod/firmware/

Trying now, thanks.

Re: IPhone 3G Performance with iOS 4.0 is terrible

#30

Post by obelix »

spicyj wrote: post #15
sabat wrote: post #12

Earlier quoted context omitted.

You can downgrade? Because I'd sure like to, until I get around to ordering the iPhone 4. There are guides or official ways of downgrading?

Yeah, just download your firmware from this page, then option-click Restore in iTunes and select the IPSW. http://www.felixbruns.de/iPod/firmware/

Didn't work. Restore failed. Trying to restore to iOS4 now.
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