Memory Usage On Emacs 24 Lucid Linux:

[T.V. Raman]

Hi Stephane,

I started an emacs -q -- loaded memory-usage.el -- and produced
memory-usage report -- attached below.

It looks normal, as do the numbers reported by free  no leak.

My emacs world is admittedly complicated. If I load emacspeak and
things start talking -- so emacs -q -l <emacspeak-setup> then I
do see the memory numbers blowing up.

If it is any help, emacspeak uses advice *heavily*.
On the other hand, I am running emacs 24 successfuly on a 64 bit
laptop and a 32-bit home desktop machine.

Garbage collection stats:
((51337 . 9533) (14771 . 0) (73 . 107) 76102 325117 (67 . 81) (180 .
54) (3028 . 4598))

 =>     821392+152528 bytes in cons cells
        709008+0 bytes in symbols
        2920+4280 bytes in markers
        1072+1296 bytes in floats
        10080+3024 bytes in intervals
        96896+147136 bytes in string headers
        76102 bytes of string chars
        76102 bytes of vector slots

Total bytes in lisp objects: 2350851 (live 2042587, dead 308264)

Buffer ralloc memory usage:
10 buffers
8865 bytes total (2382 in gaps)
      Size      Gap     Name

      4632      463     memory-usage.el
       778      77      *GNU Emacs*
       521      1597    *Buffer Details*
       329      33      *Messages*
       191      20      *scratch*
        82      20       *Echo Area 0*
        42      20       *code-conversion-work*
         0      20       *Minibuf-1*
         0      20       *Minibuf-0*
         0      20       *Echo Area 1*



On 3/12/12, Stefan Monnier <address@hidden> wrote:
>> Just did a git pull -a to see if nmy memory woes on the 16-core
>> workstation (HP Z600) were a thing of the past, alas No.
>
>> Here are some numbers that I hope are useful:
>
>> Running Emacs 23.2 on that machine, with my default .emacs
>> loaded, RSS  is about 235MB VSS about 430MB. This is an Emacs
>> session that has been up for about a week.
>
>> Emacs 24 built from today's git snapshot:
>
>> Starting Emacs with the same .emacs loaded:
>
>> 0. All memory on the machine goes away to Emacs (started with 9GB
>> of 12GB free) -- as reported by free.
>
>> 1. After running a garbage collect in that emacs (before GC, it
>> was basically  too slow to use)
>> Running proced showed an RSS of 7gb and a VSS of approx 8GB.
>
>> I ran M-x memory-usage and here are the numbers.
>
>> Garbage collection stats:
>> ((833982 . 321192) (57906 . 5) (116 . 491) 4504763 1000738985 (1539 . 520)
>> (13100 . 7508) (171211 . 33823))
>
>>  =>  13343712+5139072 bytes in cons cells
>>      2779488+240 bytes in symbols
>>      4640+19640 bytes in markers
>>      24624+8320 bytes in floats
>>      733600+420448 bytes in intervals
>>      5478752+1082336 bytes in string headers
>>      4504763 bytes of string chars
>>      4504763 bytes of vector slots
>
> Hmm... there's a bug in the above output: it should say 1000738985 bytes
> of vector slots.  That a whole 1G of vector slots.  Where could these
> come from?
>
> Can you reproduce the above output with just "emacs; M-x memory-usage"
> or do you need to do something more?  Can you try to figure out which
> part of your setup triggers this behavior?
>
>
>         Stefan
>