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

-- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;. > On Mar 16, 2015, at 3:31 PM, Manfred Kröhnert 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 > > _______________________________________________ > > Moose-dev mailing list > > Moose-dev@iam.unibe.ch mailto:Moose-dev@iam.unibe.ch > > https://www.iam.unibe.ch/mailman/listinfo/moose-dev https://www.iam.unibe.ch/mailman/listinfo/moose-dev > > > _______________________________________________ > Moose-dev mailing list > Moose-dev@iam.unibe.ch mailto:Moose-dev@iam.unibe.ch > https://www.iam.unibe.ch/mailman/listinfo/moose-dev https://www.iam.unibe.ch/mailman/listinfo/moose-dev > > _______________________________________________ > Moose-dev mailing list > Moose-dev@iam.unibe.ch > https://www.iam.unibe.ch/mailman/listinfo/moose-dev