llvm dev - Apr 2015 - [LLVMdev] how much RAM do I really need to build a devel version of LLVM?

I tried half a gig and that didn't work.  I just want to know before I
go buy a new machine.

Gry

512MB is not enough for any serious development work these days. A computer
with 512MB probably has an old weak processor as well.

At a minimum think of a i3 with 4GB (maybe used?) but you'll enjoy much
more developing LLVM on a i7 with 16GB of RAM.




2015-04-08 2:19 GMT+03:00 Gry Gunvor <gry.gunvor at gmail.com>:
> I tried half a gig and that didn't work.  I just want to know before I
> go buy a new machine.
>
> Gry
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I've built older versions of clang (3.3 - 3.4) on a 1GB ubuntu ARMv7,
but I don't recall if that has involved a swap file.. Most likely it
has.

I haven't had issues building recent clangs on a 4GB netbook, swap file
enabled.

On Wed, Apr 8, 2015 at 2:19 AM, Gry Gunvor <gry.gunvor at gmail.com>
wrote:
> I tried half a gig and that didn't work.  I just want to know before I
> go buy a new machine.
>
> Gry
> _______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev

If you're developing *for* rather than *on* a low-power system, there's 
always cross building it, too.  That's what people do to get Clang on a 
RaspberryPi, for example.


Jon

On 4/8/15 12:15 PM, martin krastev wrote:
> I've built older versions of clang (3.3 - 3.4) on a 1GB ubuntu ARMv7,
> but I don't recall if that has involved a swap file.. Most likely it
> has.
>
> I haven't had issues building recent clangs on a 4GB netbook, swap file
enabled.
>
> On Wed, Apr 8, 2015 at 2:19 AM, Gry Gunvor <gry.gunvor at gmail.com>
wrote:
>> I tried half a gig and that didn't work.  I just want to know
before I
>> go buy a new machine.
>>
>> Gry
>> _______________________________________________
>> LLVM Developers mailing list
>> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
>> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
> _______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>
-- 
Jon Roelofs
jonathan at codesourcery.com
CodeSourcery / Mentor Embedded

Hi,

The last time I measured it was a couple years ago but the peak RAM usage at the
time was a little under 7GB for a build with debug info. Most of our development
systems have 16GB but we have a few test systems for non-debug builds with 2GB +
swap.
 
> -----Original Message-----
> From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at
cs.uiuc.edu]
> On Behalf Of Gry Gunvor
> Sent: 08 April 2015 00:19
> To: llvmdev at cs.uiuc.edu
> Subject: [LLVMdev] how much RAM do I really need to build a devel version
> of LLVM?
> 
> I tried half a gig and that didn't work.  I just want to know before I
> go buy a new machine.
> 
> Gry
> _______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev