Originally Posted by kortsi

I've been using the N900 that I received in the summit for a few weeks now as my primary and only phone (so let's not forget that I am talking about a preproduction device here). Everything mostly works well, but sometimes the thing just gets really really slow while using certain apps like E-mail or Maps, or updating the software catalog. Browsing the web may do this, perhaps when opening a complicated page or a page with a lot of flash. In this situation the music player starts making short frequent pauses and the user interface gets slow. I also get unrecognized taps or one tap recognized multiple times (or perhaps there are problems playing the tap sound effect - that's how I recognize it).

Does anybody else experience this or do I have something wrong with this particular device?

This is just a hunch/guess but perhaps there is something wrong with the flash memory (or memory handing)? The device acts really slow whenever there's more than a little I/O going on. An extreme example was when trying to copy a gigabyte of music from the microSD card (using cp in shell) to the internal memory and simply jammed the whole thing. It never finished and I had to reboot. It just totally stopped after a few hundred megabytes.

To see what I mean, run:

dd if=/dev/zero of=/home/user/MyDocs/foo bs=1M

and wait for a while. Try opening other apps or generally doing anything while dd is running. My device is nearly unusable. This is of course a really extreme example, but in my opinion high I/O load should not halt the device to such a crawl. And no UI slowness at all when there is less than full use of I/O.

Is there a setting somewhere to tweak I/O behaviour for testing purposes? Could it be helped by altering some process priorities?

Originally Posted by spinnukur

How so and why a month?