I am completely lost with this discussion... on my new low-cost (246
Euro),
low energy consumption machine for the camper with an AMD E2-1800 CPU,
the whole java stuff just needs 16-25%, depending on running the
waterfall
of the 2.0.19 java client...
On the same machine fldigi alone takes 10%...
See attachment.
Rein PA0R
Hi Ian,
I can only agree that 50% CPU usage is not what I like to see. Of course
if it's running on a 486 CPU then perhaps I can live with it...
One big factor in moving to a completely java based client is another
successful ham radio application that supports multiple OS without
resorting to java: fldigi. When using it on a server we know it will
constantly crash. Unfortunately fldigi is so bad that I am quickly
loosing interest in doing anything pskmail related as long as fldigi is
involved. It just hangs. For some, even for me, it can sometimes work
fine for weeks but then it goes in to crash mode and then it's
completely useless. If we can get rid of fldigi we can make sure the
client works and then we need to get it to run with less CPU usage.
Sending emails from the command line without a client should be an easy
project. You need to create a connection to a modem (that unstable
fldigi again) and there you can just post single line pskaprs email. To
connect and receive emails will, as you say, require a bit more effort.
73, Per
SM0RWO
Ian Bennett skrev 2012-11-05 11:22:
> Rein/Per,
> I find it amusing (amazing??) that "we" rejoice when a single
> application "only" uses 50% CPU. This is normally a trigger for me to
> start looking for a problem.
> I also think it sad that "we" have to inflict java on poor widnows
> users; they don't get to feel how a well written OS/application is
> supposed to run.
> When you don't know any different, paying for software and woeful
> performance is the "norm".
> Without stating the obvious, there are a number of successful (ham
> radio) applications that support multiple OS' without resorting to java.
> For what it's worth, I only use jpskmail client to send and
> receive emails.
> After ferretting through the server code (perl) before our last
> trip fixing bugs, I discovered a few things about how pskmail works,
> so I read, edit and create emails using a simple text editor.
> One day I hope to be able to send and receive emails from the
> command line (once I get my head around how ARQ works), thus doing
> away with jpskmail altogether. Hopefully I'll be able to find the time
> to achieve this lofty goal before our next trip, thus avoiding having
> to kill (many times) a certain unresponsive application.
>
> Ian
>
>
> On 05/11/12 19:54, PÃr Crusefalk wrote:
>> I feel I need to defend java somewhat here.
>> Just as Rein pointed out pskmail would have stayed a happy linux only
>> project using perl and gtk if it wasn't for java. While I don't think
>> that would have been a negative thing at all there was some serious
>> pressure to make it work on window$.
>> Now, java has changed the industry and only yesterday I noticed a
>> certain linux and java based phone OS has a 75% market share:
>>
http://abcnews.go.com/Technology/wireStory/idc-android-75-pct-smartphones-3q-17629179#.UJd8SoYpf5E
>>
>>
>> MS tried their standard embrace-extend-extinguish with java but had to
>> back off and create their own (which is .Net).
>> Both java and .Net use a runtime and c# is almost a complete java
clone,
>> have a look here for a comparison:
>> http://www.harding.edu/fmccown/java_csharp_comparison.html
>>
>> And, for a developer here we can write once and run everywhere so that
>> really saves developer effort.
>>
>> But, of course we need to test more and also make the installer perfect
>> and show a splash screen with more info and...
>> What I mean is there is nothing wrong with java, it's just that we need
>> more hands involved in the development and testing.
>>
>> 73 de Per, sm0rwo
>>
>>
>> Rein Couperus skrev 2012-11-03 17:59:
>>> @IAn, 'Why people still persist with Windows is beyond me'.
>>> Unfortunately we had to use java to enable people to use window$.
>>>
>>> @Drew, windows wants to use javaw.exe...
>>>
>>> See
>>>
>>>
>>> FAQ Windows7 pretends it cannot find javaw.exe
>>>
<http://pskmail.wikispaces.com/FAQ+Windows7+pretends+it+cannot+find+javaw.exe>
>>>
>>>
>>> Rein PA0R
>>>
>>>
>>> Why people persist with java is beyond me :-(
>>>
>>> Try an older version of the client that uses fldigi. After much
mucking
>>> around, I have found a combination that works for me.
>>>
>>> Ian
>>>
>>>
>>> On Sat, Nov 3rd, 2012 at 10:11 AM, Rein Couperus <rein@xxxxxxxxxxxx>
>>> wrote:
>>>
>>> > Hi Drew,I am sitting in front of a WIN7 machine now (after waiting
>>> for it
>>> > to start for 8 minutes)...* I go to C:\Program
>>> > files(x86)\jPSKmail* I right-click jpskmail-2.0.19* I click
>>> 'Open
>>> > with'* I click JRE.... the program starts after waiting a few
>>> minutes
>>> > (this is WINDOWS), you will see activity at the disk drive...* set
>>> the
>>> > input and output audio mixers on the DSP tab:In: Primary Sound
>>> captureOut:
>>> > Primary Sound driverSet the audio levels with the windows audio
>>> > app....Works here....73,Rein Pa0R
>>> >
>>> > Hey guys,I've been on this list for a while, assuming at some
>>> > point I'd get some free time and would want to start playing
with
>>> > pskmail.Well, that time has arrived, and as a twenty-year IT
>>> veteran I
>>> > assumed installing and running pskmail would be relatively
easy.I was
>>> > wrong. I cannot get pskmail to start on Windows 7, and I
>>> haven't the
>>> > foggiest where to find debug messages. I installed the latest
JRE and
>>> > double-click the .jar file I downloaded from the website…
>>> the CPU
>>> > on the computer spikes to 80% for a couple of seconds and then
>>> goes back
>>> > to zero, and that's the only thing that happens.I have
>>> searched the
>>> > pskmail.org website for install instructions, but even the
'Quick
>>> > Start Guide' begins with the words "What to do after pskmail has
>>> > started?".Any ideas on what I'm doing wrong, or how to make some
>>> kind
>>> > of debug output appear?
>>> > Cheers,- Drew.--Drew Smith (mux) <drew@xxxxxxxxxxxx>, VA7DSX /
>>> > VE0TFEncrypted e-mail preferred, public key at
>>> > http://riotnrrd.com/pubkey.gpg
>>> >
>>> >
>>> >
>>> >
>>> >
>>> >
>>> >
>>>
>>>
>>>
>>>
>>>
>>
>>
>> --
>> Mobile: +46703784299
>>
>
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