17 Mar
2015
17 Mar
'15
3:27 p.m.
Hi Manfred,
Can I have access to the cpu.trace file? I promise to not share it :-)
Alexandre
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On Mar 17, 2015, at 7:14 AM, Manfred Kröhnert
<mkroehnert42(a)googlemail.com <mailto: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=shari…
<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(a)tudorgirba.com
<mailto:tudor@tudorgirba.com>> wrote:
How much RAM is what using?
Doru
On Tue, Mar 17, 2015 at 7:09 AM, phil(a)highoctane.be <mailto:phil@highoctane.be>
<phil(a)highoctane.be <mailto:phil@highoctane.be>> wrote:
How much RAM is this using?
Phil
Le 17 mars 2015 07:03, "Tudor Girba" <tudor(a)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(a)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
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^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.
On Mar 16, 2015, at 3:31 PM, Manfred Kröhnert
<mkroehnert42(a)googlemail.com <mailto:mkroehnert42@googlemail.com>> wrote:
Hi Sven,
On Mon, Mar 16, 2015 at 7:14 PM, Sven Van Caekenberghe <sven(a)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
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https://www.iam.unibe.ch/mailman/listinfo/moose-dev On 16 Mar 2015, at 17:48, Manfred Kröhnert
<mkroehnert42(a)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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