202 replies to this topic

[marzib]

How do you enable swap on CM6 for G1? Does a userinit.sh script work still? If that's the case, where does CM6 mount the ext partition? I don't see the sd-ext folder anymore...

[Firerat]

marzib, on 12 July 2010 - 12:27 AM, said:

How do you enable swap on CM6 for G1? Does a userinit.sh script work still? If that's the case, where does CM6 mount the ext partition? I don't see the sd-ext folder anymore...

its easy to do

but don't, it makes cm6 crawl

[th2811]

Firerat, on 12 July 2010 - 01:39 AM, said:

its easy to do

but don't, it makes cm6 crawl

Can you say how to do it please?
Where i must place the code/userinitscript?
I would like to test it!

Thanks!

[Vilbrekin]

It may crawl, but without swap CM6 (just as CM5) gives me an iphone...

I did it the quick and dirty way: patch /etc/init.d/20userinit, adding at the beginning:

mount -o remount,rw /
mkdir -p /sd-ext
mount /dev/block/mmcblk0p2 /sd-ext
mount -o remount,ro /

This re-activates my old userinit.sh activating the swap partition.
I don't understand why ext is not mounted by default in CM6. Maybe because they feal it's useless while ext app2sd is not finished...

[Firerat]

http://forum.xda-dev...ad.php?t=679572

sh /sdcard/fr-patch133.txt swap

but I don't advise it on CM6

[th2811]

Made a Script "83swapon" and pushed it into /system/etc/init.d/

83swapon:

swapon /dev/block/mmcblk0p3;
sysctl -w vm.swappiness=60;

Doesn't start on boot!?

Anyone know why?

[Firerat]

th2811, on 12 July 2010 - 01:54 PM, said:

Made a Script "83swapon" and pushed it into /system/etc/init.d/

83swapon:

swapon /dev/block/mmcblk0p3;
sysctl -w vm.swappiness=60;

Doesn't start on boot!?

Anyone know why?

I'm guessing you didn't make it executable

adb shell chmod 700 /system/etc/init.d/83swapon

will do the trick

[th2811]

Firerat, on 12 July 2010 - 02:30 PM, said:

I'm guessing you didn't make it executable

adb shell chmod 700 /system/etc/init.d/83swapon

will do the trick

THANK YOU VERY MUCH

EDIT:



Swap was running on first boot but after second reboot: swap 0

When I type
swapon /dev/block/mmcblk0p3;
sysctl -w vm.swappiness=60;
into terminal (after system is startet) swap is active, but not automatic on boot?

Permissions are right

also testet to put the line "echo 255 >/sys/class/leds/blue/brightness;" into the 83swapon-file and led is lighting but swap not active

[Vilbrekin]

I guess we have similar issues: it seems the SD card takes some time to get detected at boot time.

Quote

--------- beginning of /dev/log/main
I/cm ( 65): Welcome to Android 2.2 / CyanogenMod-6.0.0-DS-RC1
I/cm ( 66): _
I/cm ( 67): __ __ _ ___ _ _ __ ___ __ _ _ _ _ __ __))
I/cm ( 68): ((_ \(/'((_( ((\( ((_)((_( (('((\( ((`1( ((_)((_(
I/cm ( 69): )) _))
I/cm ( 70):
I//system/xbin/run-parts( 60): mount: mounting /dev/block/mmcblk0p2 on /sd-ext failed: No such file or directory
I/DEBUG ( 91): debuggerd: Jul 10 2010 23:59:19
D/AKMD ( 98): akmd 1.6.6 START
D/AKMD ( 98): library version: 1.2.1.1129
--------- beginning of /dev/log/system
I/Vold ( 89): Vold 2.1 (the revenge) firing up
I/Netd ( 90): Netd 1.0 starting
D/Vold ( 89): Volume sdcard state changing -1 (Initializing) -> 0 (No-Media)
D/Vold ( 89): Volume sdcard state changing 0 (No-Media) -> 2 (Pending)
D/Vold ( 89): Volume sdcard state changing 2 (Pending) -> 1 (Idle-Unmounted)

[th2811]

Vilbrekin, on 12 July 2010 - 03:22 PM, said:

I guess we have similar issues: it seems the SD card takes some time to get detected at boot time.

yes I also think this is the problem - any way to change this?
(i.e. executing the script later)

[Firerat]

Vilbrekin, on 12 July 2010 - 03:22 PM, said:

I guess we have similar issues: it seems the SD card takes some time to get detected at boot time.

th2811, on 12 July 2010 - 03:37 PM, said:

yes I also think this is the problem - any way to change this?
(i.e. executing the script later)

you are already running the script 'late'

add a shabang

#!/system/bin/sh

[-Stevo-]

Psycho13oy told me in IRC in different words to basically not expect a fix for this.

So basically that 20userinit script in init.d is absolutely useless as the ext part can't be mounted at boot for some reason.

[Vilbrekin]

Well, a simple retry loop with smal delay should do the trick, giving enough time to initialize the SD card reader.

[BobSilva]

Firerat,

With all due respect -- and I respect the heck out of you -- I must disagree. I have an MT3G and swap is the only thing that makes life worth living (OK, not really ). But, it significantly improves performance from the moment I enable it. I've run it in 5.0.8 and now in 6.0.0. The market app particularly sucks without it. So, I think it's affect on system performance really depends on the hardware platform. As always, your actual mileage may vary...

Thanks,
Bob

[Vilbrekin]

FYI, I've tried with the following script, which seems to do the trick:

if [ ! -d /sd-ext ]; then
  mount -o remount,rw /
  mkdir -p /sd-ext
  mount -o remount,ro /
fi
PART=/dev/block/mmcblk0p2
for i in 1 2 3 4 5; do
  if [ -e $PART ]; then
    mount $PART /sd-ext
    break
  else
    echo "$PART does not exist (yet); sleeping a bit..."
    sleep 2
  fi
done

[Brantyr]

Swap is still very necessary on my 32B I find, without it the launcher has to do a complete reload every time you've gone into an app more complicated than settings which gets very very tiresome. A minimal amount of swap (24-32mb) makes the phone so much more responsive it's not funny. Essentially I go from
Home key > wait 5 seconds > hit apps button > wait 2 seconds > scroll and select app
to
Home key > wait 1-2 seconds > hit apps button > scroll and select app

The difference in usability is night and day.

Edit: I should add I use 3 homescreens and fairly minimal widgets, all I have is power control, calwidget, facebook and music.

[jetracer]

i use the swapper app from market.. takes care of everything.. i get lazy.

[vassago]

I gotta agree with Firerat here. I turned my swap on today just to check and it was miserable. I thought the swap was super cool and necessary, until on 5.0.8 my phone was running like crap, so I turned swap off and the phone was manageable again. Though, my sd card is only class 4, the decrease in performance and loading I saw today was so bad I doubt the class of the sd card had a whole lot to do with it. I have my swappiness set at 30 and a 64mb swap partition.

[-Stevo-]

Gotta disagree, phone doesn't multitask, adw doesn't stay in memory, browser doesn't persist state, after swap on swappiness 40 32mb swap, everything runs perfectly.

[nwordjim]

Firerat would you mind explaining why Swap is bad for CM6? I am considering turning it on so my g1 would quit having to load the launcher everytime I leave it. and I currently have a 128mb swap that I made a while ago. should I use that or make another one of smaller size like a 32 or 64. Thx