On 18 April 2011 16:03, Dave Martin
<dave.martin@linaro.org> wrote:
On Mon, Apr 18, 2011 at 03:34:21PM +0800, Eric Miao wrote:
> All,
>
> It was found that the ubuntu-desktop is a bit memory hungry on this i.MX53
> QuickStart board. There is a large chunk of memory being reserved for the
> graphics/video drivers, and the memory size reserved has to consider the
> worst case. And we have to live with this before the unified memory allocator
> is available.
>
> I don't yet have a /proc/meminfo after system is right up, I'll get some
> statistics a bit later. However, I do want to know if we have some memory
I have a try.
MX53 loco meminfo on: 20110414 Ubuntu desktop release
root@linaro:~# cat /proc/meminfo
MemTotal: 868092 kB
MemFree: 705228 kB
Buffers: 5288 kB
Cached: 74580 kB
SwapCached: 0 kB
Active: 75488 kB
Inactive: 62940 kB
Active(anon): 61168 kB
Inactive(anon): 1028 kB
Active(file): 14320 kB
Inactive(file): 61912 kB
Unevictable: 0 kB
Mlocked: 0 kB
HighTotal: 0 kB
HighFree: 0 kB
LowTotal: 868092 kB
LowFree: 705228 kB
SwapTotal: 0 kB
SwapFree: 0 kB
Dirty: 16 kB
Writeback: 24 kB
AnonPages: 58576 kB
Mapped: 29208 kB
Shmem: 3636 kB
Slab: 11080 kB
SReclaimable: 5028 kB
SUnreclaim: 6052 kB
KernelStack: 1912 kB
PageTables: 2128 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 434044 kB
Committed_AS: 482812 kB
VmallocTotal: 319488 kB
VmallocUsed: 165468 kB
VmallocChunk: 131068 kB
root@linaro:~#
smem info after installed smem:
http://pastebin.ubuntu.com/595429/
> footprint evaluation of the existing ubuntu-desktop (we are using unity-2d)?
> And what can we do to improve on that?
There's some old data I recorded on netbook-efl which is probably
the closest data I know about:
https://wiki.linaro.org/Platform/DevPlatform/MemoryFootprintSampleData#netbook-efl
I've been focusing on kernel work this cycle, so I don't know if
the memory footprint work has been moving forward.
Steve may know who's involved now.
Cheers
---Dave