On Sat, 29 Jun 2019 15:34:38 +0100, David Taylor wrote:

> On 29/06/2019 09:42, James Harris wrote:
>>
>> How, er, fast does it go?
>>
>> With some of the amazing specs of the Raspberry Pi 4 I wonder if the
>> 4GB version would be fast enough to replace a desktop PC - just for
>> basic computing such as web browsing, word processing, spreadsheets,
>> file handing etc.
>>
>> I ask because I have just been trying to use Twitter via Chromium on a
>> Raspberry Pi 2 running Raspbian and Twitter was unusable. Half the
>> tweet could be typed before any characters became visible and clicks
>> within the text would take a while to move the cursor.
>>
>> So what do you guys think about how fast a 4GB RPi 4 would be in
>> comparison?
>
> It's much faster then the RPi 2.  My initial tests on the 4 GB version
> suggest it would be fine for routine Web browsing, and for basic
> word/excel/etc. tasks.  Maybe even simple photo editing.  In short,
> everything which many users need, but not "power" users.
>
Have you made any comparison of compilation speeds, say a decent-sized C
programs? For comparison a program I wrote (9000 lines split into 15
source files and 11 header files) takes:

 0.730 s on a Lenovo T440 (i5 at 1.9qGHZ, 8Gb RAM)
 1.366 s on an AMD dualAthlon at 1.0 GHz, 4 GB RAM)
24.314 s on my RPI2, an early 512MB Pi 1B+ which claims 698 bogoMIPS

The T440 and the dual Athlon box are running Fedora 30 and the RPi is
running  Raspbian 4.19.42. All three systems were fully updated on Friday.

I'd be most interested to know how its compilation speed compares with
the dual Athlon because, if/when that dies, the obvious replacement
candidates are an RPi 4 or an i5-equipped mini ITX system.


--
Martin    | martin at
Gregorie  | gregorie dot org

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