Memory

NETMF & Gadgeteer
1

Everythings been progressing well however today I started getting the following message output:

GC: 4msec 60144 bytes used, 4236 bytes available
Type 0F (STRING ): 192 bytes
Type 11 (CLASS ): 3252 bytes
Type 12 (VALUETYPE ): 96 bytes
Type 13 (SZARRAY ): 3552 bytes
Type 15 (FREEBLOCK ): 4236 bytes
Type 17 (ASSEMBLY ): 14652 bytes
Type 18 (WEAKCLASS ): 48 bytes
Type 19 (REFLECTION ): 24 bytes
Type 1B (DELEGATE_HEAD ): 324 bytes
Type 1D (OBJECT_TO_EVENT ): 456 bytes
Type 1E (BINARY_BLOB_HEAD ): 5616 bytes
Type 1F (THREAD ): 1920 bytes
Type 20 (SUBTHREAD ): 240 bytes
Type 21 (STACK_FRAME ): 27240 bytes
Type 22 (TIMER_HEAD ): 72 bytes
Type 23 (LOCK_HEAD ): 180 bytes
Type 24 (LOCK_OWNER_HEAD ): 72 bytes
Type 25 (LOCK_REQUEST_HEAD ): 36 bytes
Type 27 (FINALIZER_HEAD ): 264 bytes
Type 31 (IO_PORT ): 324 bytes
Type 34 (APPDOMAIN_HEAD ): 72 bytes
Type 36 (APPDOMAIN_ASSEMBLY ): 1512 bytes
Failed allocation for 164 blocks, 1968 bytes

Now, if 4236 is available, why can’t it allocate 1968?

2

Because memory is fragmented.

Run Debug.GC(true) to compact your heap

3

Ahhh of course, thanks I’ll run that through and see what happens.

4

Hah found out why, I silly endless recursion:

    public void Write(string s)
    {
        byte[] bytes = Encoding.UTF8.GetBytes(s);

        Write(s);
    }