netbook vs tablet

[Bill Davidsen]

Robert Moskowitz wrote:
>
> On 11/23/2012 02:56 PM, JD wrote:
>> On Fri, Nov 23, 2012 at 11:39 AM, Fulko Hew <fulko.hew at gmail.com> wrote:
>>> On Fri, Nov 23, 2012 at 1:37 PM, Alan Cox <alan at lxorguk.ukuu.org.uk> wrote:
>>>>> Fedora 17?  The page I reference seems to have F17 working somewhat
>>>>> better than you report.
>>>> With a keyboard permanently attached ...
>>>>
>>>>> I might as well stay with Android.  I actually have to start working
>>>>> with it for my day job.  I work for Verizon Enterprise Systems and my
>>>>> research is leading me to working on some product development. Sigh.  I
>>>>> LIKE research; kind of like Medcalf back at Xerox....
>>>> One of the problems with trying to drop Linux onto most tablets is the
>>>> complete lack of a real disk subsystem, just slow SD card interfaces.
>>>> That really hurts although it can still be usable.
>>>
>>> Bad performance could be the result of 'less than optimal' SD cards.
>>> Even slow-rated cards (Class 4) sometimes outperform fast (Class 10) cards
>>> depending on what you do with them.  Checkout the following analysis:
>>>
>>> http://forum.xda-developers.com/showthread.php?p=12330898
>> I agree as far as SD card performance grade.
>> When you switch to the Extreme level of performance (45MB/s read/write),
>> you will see almost hard drive level of performance. Of course, you must
>> be aware of what happens to SD card when written to very often.
>> So I would suggest that you mount you /tmp and /var/tmp and your home dir
>> on some other drive.
> I mounted all of /var on the SDD to include logs. But is there a way to mount
> /tmp and /var to the same partition?  That is a major issue:  how to figure out
> how large to make separate partitiions when there is so little space to work with!
>
Two ways to do it, start with one partition and two subdirectories. You can make 
them appear as /tmp and /var with symbolic links, but the use of bind mounts is 
probably less likely to cause problems. I would have to research using bind 
mounts in fstab, someone very familiar with bot sequences may tell me you can't. 
Since the boot methods seem to change every other release, I can't say. And I do 
this but not for anything vital like /tmp, so I can put my bind mounts in 
rc.local along with some error checking and correcting code.

> As for /home, there is very little writing to /home.  It is better to manage all
> frequent data on a USB drive.
>

-- 
Bill Davidsen <davidsen at tmr.com>
   "We have more to fear from the bungling of the incompetent than from
the machinations of the wicked."  - from Slashdot