Re: Massive interactivity improvement under high I/O load!
 

You're going to need a port of NX server (or NeatX).

Re: Massive interactivity improvement under high I/O load!
 

If I apply the tweaks from the 1st Post after a few days of use/uptime, my phone will freeze/become unresponsive indefinately (i waited 15 min). Only thing that worked was shutdown by long press....
If I apply them right after boot it works but the improvement in normal use is minimal. Running Power46@250-1000@ulv

Re: Massive interactivity improvement under high I/O load!
 

Update:
After a few hours of use my phone becomes more and more unresponsive, eventually so bad that I have to reboot.
Wont use those tweaks again. Swappolube is fine....

Re: Massive interactivity improvement under high I/O load!
 

I don't have this issue. I have had a couple of gmail-randomly-logging-me-out errors in microb, and a couple of spontaneous reboots. I do not, however, know if these are caused by the tweeks yet though, as it's been far too little time to tell in my opinion, as I've had a couple of spontaneous reboots shortly before applying these tweeks.

Re: Massive interactivity improvement under high I/O load!
 

I've just tried exactly that (setting 8M as min_free_kbytes), and both memhogs got killed by oom_kill_allocating_task after around 100M (of 200), unfortunately.

Re: Massive interactivity improvement under high I/O load!
 

On buffers in microsd/emmc cards, from benchmark results I'm guessing the kingston cards I tested have about 0 buffers, and some sandisk cards behaved like they were able to handle 2 or 3 write streams to different areas of the card before speed collapses.

Some sandisk class 2 cards perform a few magnitudes faster than some kingston class 6 under specific write patterns ;-)

Re: Massive interactivity improvement under high I/O load!
 

Apparently the whole class thing is utter bs. There's no independent testing & certification process, so manufacturers are free to class their cards however they like.

And in any case, it's easy to tune to the benchmark, so I'm sure many vendors will just optimize contiguous block writes to the exclusion of all else. :(

Re: Massive interactivity improvement under high I/O load!
 

Well it's hard to optimize for anything else.

The class rating for both cards I tested were probably correct, it's just that the class rating measures something that's pretty irrelevant for use by a modern multitasking operating system.

Re: Massive interactivity improvement under high I/O load!
 

The main market target for SD/microSD are so basic that there is nothing to optimize:
- additional "read-only" storage for mobile devices: music, video, maps
- photo shooting: large file written sequencely (burst)

What we just need is a standard RAM behind a microSD connector with the smallest possible power consumption ! Does it exist already ?

Re: Massive interactivity improvement under high I/O load!
 

That would be most excellent...

Or a 32gb card with, say, 1gb of DRAM split across two partitions..