--
_,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:
Alexandre Bergel
http://www.bergel.eu
^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.
> On Mar 17, 2015, at 7:14 AM, Manfred Kröhnert
mkroehnert42@googlemail.com wrote:
>
> Thanks for the response so far.
>
> Here is a link to the file I am using with the script from my first post.
> The only thing which needs to be done is to create a Filesystem object for the file with
>
>
> cpuFile := 'path/to/cpu.trace' asFileReference
> cpuReader := NeoCSVReader on: (cpuFile readStream).
> cpuReader separator: $|.
> cpuHeader := cpuReader readHeader.
> cpuData := cpuReader upToEnd.
>
> g := RTGrapher new.
> g extent: 300@200.
>
> ds := RTDataSet new.
> ds points: (cpuData collect: [ :each |
> | timestamp cpuUsage |
> timestamp := (each at: 1) asNumber.
> cpuUsage := (each at: 4) asNumber.
> Array braceWith: timestamp with: cpuUsage]).
> ds x: #first.
> ds y: #second.
> ds connectColor: Color blue.
>
> g add: ds.
> g addDecorator: RTHorizontalTickLineDecorator new.
> g addDecorator: RTVerticalTickLineDecorator new.
> g build.
> g view canvas.
>
>
> The responsiveness does get back to normal when I switch from the Canvas view to the Raw or Meta view of the TRCanvas object but also when the tab of the TRCanvas object gets closed.
>
> To measure the memory usage of the vm I used the following statement: ((Smalltalk vm getParameters at: 3) / 1000000) asInteger
> This is adapted from the following SO answer:
http://stackoverflow.com/questions/8556207/in-pharo-how-can-you-measure-the-... http://stackoverflow.com/questions/8556207/in-pharo-how-can-you-measure-the-systems-current-total-memory-consumption
> Before executing the script the statement shows 76 and afterwards 203.
>
> Wrapping the whole script in 'MessageTally spyOn: []' gives me the following report:
>
https://drive.google.com/file/d/0B-EyIKkOzbhydU9PNzVjMmZ5d3c/view?usp=sharin... https://drive.google.com/file/d/0B-EyIKkOzbhydU9PNzVjMmZ5d3c/view?usp=sharing
>
> Thanks for your help so far,
> Manfred
>
>
> On Tue, Mar 17, 2015 at 7:32 AM, Tudor Girba <tudor@tudorgirba.com
mailto:tudor@tudorgirba.com> wrote:
> How much RAM is what using?
>
> Doru
>
> On Tue, Mar 17, 2015 at 7:09 AM, phil@highoctane.be
mailto:phil@highoctane.be <phil@highoctane.be
mailto:phil@highoctane.be> wrote:
> How much RAM is this using?
>
> Phil
>
> Le 17 mars 2015 07:03, "Tudor Girba" <tudor@tudorgirba.com
mailto:tudor@tudorgirba.com> a écrit :
>
> Also, does the responsiveness get better after you close the visualization?
>
> Cheers,
> Doru
>
> On Mon, Mar 16, 2015 at 9:03 PM, Alexandre Bergel <alexandre.bergel@me.com
mailto:alexandre.bergel@me.com> wrote:
> Hi Manfred,
>
> You may have pin-pointing a limitation in Roassal. However, I am sure we can handle it easily. Can I have this CSV file? to reproduce the situation on my machine?
>
> Resend the complete script as well please :-)
>
> Cheers,
> Alexandre
> --
> _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:
> Alexandre Bergel
http://www.bergel.eu http://www.bergel.eu/
> ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.
>
>
>
>> On Mar 16, 2015, at 3:31 PM, Manfred Kröhnert <mkroehnert42@googlemail.com
mailto:mkroehnert42@googlemail.com> wrote:
>>
>> Hi Sven,
>>
>>
>>
>> On Mon, Mar 16, 2015 at 7:14 PM, Sven Van Caekenberghe <sven@stfx.eu
mailto:sven@stfx.eu> wrote:
>> Hi Manfred,
>>
>> I can only help you with the NeoCSV & IO part. Here is how I would do it:
>>
>> [
>> 'manfred.csv' asFileReference writeStreamDo: [ :out |
>> (NeoCSVWriter on: (ZnBufferedWriteStream on: out)) in: [ :writer |
>> writer separator: $|; writeHeader: #(timestamp two three cpu); fieldWriter: #raw.
>> 130000 timesRepeat: [
>> writer nextPut: { DateAndTime now asUnixTime. 999 atRandom. 999 atRandom. 999 atRandom } ] ] ].
>> ] timeToRun. "0:00:00:01.917"
>>
>> [
>> 'manfred.csv' asFileReference readStreamDo: [ :in |
>> (NeoCSVReader on: (ZnBufferedReadStream on: in)) in: [ :reader |
>> reader separator: $|; readHeader.
>> reader addIntegerField; addIgnoredField; addIgnoredField; addIntegerField.
>> reader upToEnd ] ].
>> ] timeToRun. "0:00:00:01.064"
>>
>> I think that is acceptable for a 3Mb file.
>>
>>
>> thanks for your input.
>> This will come in handy once the files get bigger.
>>
>> But the problem is not in reading the file.
>> Even when I use 'reader upToEnd' it is really fast and all following actions remain fluent.
>>
>> The problem I am facing is that any action I am performing _after_ drawing the graph takes several seconds.
>> And I just noticed that switching from the Canvas to the Raw tab of the TRCanvas object makes the problem disappear.
>> But switching to the Canvas tab itself takes several seconds (probably until the graph is rendered) and every action afterwards is getting delayed several seconds.
>>
>> The machine I am running this image on has 8 GB RAM and a 2.8 GHz Core i7 (mobile) processor if this information helps.
>>
>> Best,
>> Manfred
>>
>>
>>
>> HTH,
>>
>> Sven
>>
>> > On 16 Mar 2015, at 17:48, Manfred Kröhnert <mkroehnert42@googlemail.com
mailto:mkroehnert42@googlemail.com> wrote:
>> >
>> > Hi everyone,
>> >
>> > after having access to a machine running OS X 10.10.2 I started to give Moose 5.1 a try for some initial data analysis.
>> > I used Pharo Launcher (build #24) and downloaded the Moose image with buildnumber 304.
>> >
>> > The task is to read a CSV log file containing around 130000 entries, each containing a timestamp, a cpu usage number, and some other information.
>> > Everything works as expected, but the responsiveness of the image drops dramatically after executing the script in Playground with Cmd+Shift+g.
>> > After evaluating the script it takes several seconds to get a response to any action such as opening the world menu or switching tabs in the playground.
>> >
>> > Is this because I am doing something very inefficient (most probably) or does this problem occur more often?
>> > Here is the script I am using:
>> >
>> >
>> > cpuReader := NeoCSVReader on: (cpuFile readStream).
>> > cpuReader separator: $|.
>> > cpuHeader := cpuReader readHeader.
>> > cpuData := cpuReader upToEnd.
>> >
>> > g := RTGrapher new.
>> > g extent: 300@200.
>> >
>> > ds := RTDataSet new.
>> > ds points: (cpuData collect: [ :each |
>> > | timestamp cpuUsage |
>> > timestamp := (each at: 1) asNumber.
>> > cpuUsage := (each at: 4) asNumber.
>> > Array braceWith: timestamp with: cpuUsage]).
>> > ds x: #first.
>> > ds y: #second.
>> > ds connectColor: Color blue.
>> >
>> > g add: ds.
>> > g addDecorator: RTHorizontalTickLineDecorator new.
>> > g addDecorator: RTVerticalTickLineDecorator new.
>> > g build.
>> > g view canvas.
>> >
>> >
>> > I also noticed that the 'Meta' representation of an object looks very crammed since it does not use the full size available in the tab.
>> > Should issues like this be reported somewhere else?
>> >
>> > Thanks for taking a look at this,
>> > Manfred
>> > _______________________________________________
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>> >
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