How to read Droid3 memory allocation information

[thinkmega]

I have a rooted D3. Just want to know how much RAM (512MB) I've used. When I did "setting->applications->running services", I can see 237MB used and 147MB free.
The sum of these two numbers is less than 512MB.

When I use adb to do "db" on the phone, I get these:
Filesystem Size Used Free Blksize
/dev 219M 76K 219M 4096
/mnt/asec 219M 0K 219M 4096
/mnt/obb 219M 0K 219M 4096
/system 425M 254M 171M 1024
/data 1G 616M 1G 4096
/cache 535M 16M 518M 4096
/data/tmp 2M 12K 1M 4096
/pds 3M 1M 2M 1024
/preinstall 477M 263M 214M 1024

Can someone help me understand these numbers, I assume they refer to hard storage as opposed to RAM, ? Please help. Thanks.

 

[Shimmy549]

The tool I used in the SDK showed a pie chart with labeled slices. Some were familiar (some "com.android" things). Some were not ("zygote"?).

I don't know. Maybe my phone was pregnant-haha.

Don't know what your numbers mean. Sorry.

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