[Moose-dev] Re: Moose 5.1 image getting really sluggish after graphing a bigger dataset

visualization? Cheers, Doru On Mon, Mar 16, 2015 at 9:03 PM, Alexandre Bergel < alexandre.bergel(a)me.com&gt; 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 > ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;. > > > > On Mar 16, 2015, at 3:31 PM, Manfred Kröhnert < > mkroehnert42(a)googlemail.com&gt; wrote: > > Hi Sven, > > > > On Mon, Mar 16, 2015 at 7:14 PM, Sven Van Caekenberghe &lt;sven(a)stfx.eu&gt; > 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(a)googlemail.com&gt; 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 >> > _______________________________________________ >> > Moose-dev mailing list >> > Moose-dev(a)iam.unibe.ch >> > https://www.iam.unibe.ch/mailman/listinfo/moose-dev >> >> >> _______________________________________________ >> Moose-dev mailing list >> Moose-dev(a)iam.unibe.ch >> https://www.iam.unibe.ch/mailman/listinfo/moose-dev >> > > _______________________________________________ > Moose-dev mailing list > Moose-dev(a)iam.unibe.ch > https://www.iam.unibe.ch/mailman/listinfo/moose-dev > > > > _______________________________________________ > Moose-dev mailing list > Moose-dev(a)iam.unibe.ch > https://www.iam.unibe.ch/mailman/listinfo/moose-dev > > -- www.tudorgirba.com "Every thing has its own flow" _______________________________________________ Moose-dev mailing list Moose-dev(a)iam.unibe.ch https://www.iam.unibe.ch/mailman/listinfo/moose-dev