January 2016 - Pharo-users - lists.pharo.org

Re: [Pharo-users] Morphic is super slow

by Dimitris Chloupis

ITs not the step, I removed the step as I said in my first post. Still 30% cpu consumption The images are PNGs and RGBA , 8bit On Fri, Jan 15, 2016 at 10:54 PM Hilaire <hilaire(a)drgeo.eu> wrote: > It depends on what you are doing in a step, but 1s step should not hurt. > May be the problem is somewhere else. > With DrGeo, I noted Athens is faster to BitBlt with bitmap operations > (in my case, only scaling and displaying a From in a DrGeo canvas). > Also, do your bitmaps come with 32 bits depth? > > -- > Dr. Geo > http://drgeo.eu > > > >

Jan. 15, 2016

Re: [Pharo-users] Morphic is super slow

by Nicolai Hess

2016-01-15 21:53 GMT+01:00 Hilaire <hilaire(a)drgeo.eu>: > It depends on what you are doing in a step, but 1s step should not hurt. > May be the problem is somewhere else. > With DrGeo, I noted Athens is faster to BitBlt with bitmap operations > (in my case, only scaling and displaying a From in a DrGeo canvas). > Also, do your bitmaps come with 32 bits depth? > I suspect Rubric. Old pharo withouth Rubric in Nautilus -> ~ 0.5 % Current Pharo with Rubric in Nautilus -> ~ 10 % both with a fresh image and only one Nautilus window open. > > -- > Dr. Geo > http://drgeo.eu > > > >

Jan. 15, 2016

Re: [Pharo-users] Morphic is super slow

by Hilaire

It depends on what you are doing in a step, but 1s step should not hurt. May be the problem is somewhere else. With DrGeo, I noted Athens is faster to BitBlt with bitmap operations (in my case, only scaling and displaying a From in a DrGeo canvas). Also, do your bitmaps come with 32 bits depth? -- Dr. Geo http://drgeo.eu

Jan. 15, 2016

Morphic is super slow

by Dimitris Chloupis

So I decided to find out why Nuatilus delays to syntax highlight when I open ChronosManager I open my activity monitor to be amazed by the fact that pharo was consuming 30% of one of my cores. At the time I thought it was my fault because when my GUI steps I load from a png a form that I attack to a Morph. So I optomised that part loading all the pngs before hand , creating all the forms and during steping point only to the correct form. Nope still 30% ok change step time to 1 sec Nope still 30% ok delete step and step time alltogether Nope still 30% so the only explanation left is that pharo does not like I use images , which are not that big anyway , my whole image library is just 1 mb. So how I profile this ? Is there any way to find exactly where that 30% is consumed ? I tried to profile step and it retunred back with a mere 32ms , and I suspect thats the first step that loads the images , the second step would be much faster since it will just point to correct forms. So with a step of 32ms max and stepping once per second why a 30% CPU consumption ?

Jan. 15, 2016

Re: [Pharo-users] [ANN] OSSubprocess first milestone

by Johan Fabry

That looks very cool to me, it would have come quite in handy for some project that I did last year ;-) > On Jan 15, 2016, at 13:13, Mariano Martinez Peck <marianopeck(a)gmail.com> wrote: > > Luc, Damien, et all. > > I implemented the kind of API Luc suggested, which was a great idea. I took also his API to answer Damien question of could we do a "tail -f" example. So I made a little example where I run "tail -f system.log" and I keep a Playground updated with the stdout :) > Here is the video: > > https://dl.dropboxusercontent.com/u/6980943/tailExample.mov <https://dl.dropboxusercontent.com/u/6980943/tailExample.mov> > > Let me know what do you think. > > Cheers, > ---> Save our in-boxes! http://emailcharter.org <--- Johan Fabry - http://pleiad.cl/~jfabry PLEIAD and RyCh labs - Computer Science Department (DCC) - University of Chile

Jan. 15, 2016

Re: [Pharo-users] [ANN] OSSubprocess first milestone

by Mariano Martinez Peck

Luc, Damien, et all. I implemented the kind of API Luc suggested, which was a great idea. I took also his API to answer Damien question of could we do a "tail -f" example. So I made a little example where I run "tail -f system.log" and I keep a Playground updated with the stdout :) Here is the video: https://dl.dropboxusercontent.com/u/6980943/tailExample.mov Let me know what do you think. Cheers, On Fri, Jan 15, 2016 at 10:51 AM, Mariano Martinez Peck < marianopeck(a)gmail.com> wrote: > >> >> defaultReadStreamCreationBlock: [ process >> createTempFileToBeUsedAsReadStreamOn: '/tmp' ]; >> >> In the readme, the piece of code containing that is a bit suspicious >> because it depends on the fact that the block is evaluated after the >> variable 'process' is assigned. >> > > Thanks, fixed! > I always hated the instance side nature of those methods, so I moved them > to class side. > > > > >> -- >> Damien Cassou >> http://damiencassou.seasidehosting.st >> >> "Success is the ability to go from one failure to another without >> losing enthusiasm." --Winston Churchill >> >> > > > -- > Mariano > http://marianopeck.wordpress.com > -- Mariano http://marianopeck.wordpress.com

Jan. 15, 2016

Re: [Pharo-users] SSL client certificates

by Sven Van Caekenberghe

Wow, thanks for sharing! Please, please, Holger, share the new Mac SSL Plugin somewhere so that we can test it too. (Next step is to push this change upstream in the VM). > On 15 Jan 2016, at 14:49, Norbert Hartl <norbert(a)hartl.name> wrote: > > Hi, > >> Am 12.01.2016 um 16:25 schrieb Sven Van Caekenberghe <sven(a)stfx.eu>: >> >> Given a ZdcSecureSocketStream you can access the #sslSession. In this session object you can use #certificateName: to set the path or name of the certificate (before you #connect !). That is the general idea. >> >> Now, I don't know if this works or not. Be prepared to look in the plugin C code! On Linux this will probably work. >> >> And please let us know how it goes ;-) >> > I spend some time yesterday trying it. With a linux installation I could issue a client connection and that didn't throw an error. Then Holger was really helpful with Mac OS. He just compiled the Mac plugin using the unix openssl sources. I just copied that in the VM folder and then I could do the same on my Mac. I tried to send a push message via apples push server using: > > | deviceId payload ip stream notification | > payload := '{ > "aps" : { > "alert" : "Pharo finally got it!" > } > }'. > deviceId := 'XXX'. > > notification := ByteArray streamContents: [ :str | > str > nextPut: 1; > nextPutAll: (1 asPaddedByteArray: 4); > nextPutAll: ((DateAndTime now + 1 day) asUTC asUnixTime asByteArray); > nextPutAll: (32 asPaddedByteArray: 2); > nextPutAll: (ByteArray readHexFrom: deviceId); > nextPutAll: (payload size asPaddedByteArray: 2); > nextPutAll: payload asByteArray ]. > > ip := NetNameResolver addressForName: 'gateway.push.apple.com' timeout: 30. > stream := ZdcSecureSocketStream > openConnectionToHost: ip > port: 2195 > timeout: 30. > stream > binary; > shouldSignal: true; > autoFlush: false; > bufferSize: 4096; > timeout: 30. > stream sslSession > enableLogging; > certificateName: '/Users/norbert/multiprod.pem'. > stream > connect; > nextPutAll: notification; > flush; > close. > > That is working and I receive the message on my phone. So basically the client certificate stuff seems to work. The awkward thing about it is that you have to specify a filename for the cert. I have the certificates in a database and writing a file everytime I want to send something is not that good. Especially not if there are concurrent requests for sending messages. > > There is one constraint for this to work. You specify a filename for certificate. In the file you need to have certificate and key. The plugin reads both from the same file. There is no code for specifying a CA chain. So this is resolved system wide and that means you need to install every CA for your certificate in the system. > > Norbert > >>> On 12 Jan 2016, at 16:05, Norbert Hartl <norbert(a)hartl.name> wrote: >>> >>> Is there a way to make SSL connections to the outside world using client certificates from pharo? >>> >>> thanks, >>> >>> Norbert

Jan. 15, 2016

Re: [Pharo-users] [ANN] OSSubprocess first milestone

by Mariano Martinez Peck

> > > > defaultReadStreamCreationBlock: [ process > createTempFileToBeUsedAsReadStreamOn: '/tmp' ]; > > In the readme, the piece of code containing that is a bit suspicious > because it depends on the fact that the block is evaluated after the > variable 'process' is assigned. > Thanks, fixed! I always hated the instance side nature of those methods, so I moved them to class side. > -- > Damien Cassou > http://damiencassou.seasidehosting.st > > "Success is the ability to go from one failure to another without > losing enthusiasm." --Winston Churchill > > -- Mariano http://marianopeck.wordpress.com

Jan. 15, 2016

Re: [Pharo-users] SSL client certificates

by Norbert Hartl

Hi, > Am 12.01.2016 um 16:25 schrieb Sven Van Caekenberghe <sven(a)stfx.eu>: > > Given a ZdcSecureSocketStream you can access the #sslSession. In this session object you can use #certificateName: to set the path or name of the certificate (before you #connect !). That is the general idea. > > Now, I don't know if this works or not. Be prepared to look in the plugin C code! On Linux this will probably work. > > And please let us know how it goes ;-) > I spend some time yesterday trying it. With a linux installation I could issue a client connection and that didn't throw an error. Then Holger was really helpful with Mac OS. He just compiled the Mac plugin using the unix openssl sources. I just copied that in the VM folder and then I could do the same on my Mac. I tried to send a push message via apples push server using: | deviceId payload ip stream notification | payload := '{ "aps" : { "alert" : "Pharo finally got it!" } }'. deviceId := 'XXX'. notification := ByteArray streamContents: [ :str | str nextPut: 1; nextPutAll: (1 asPaddedByteArray: 4); nextPutAll: ((DateAndTime now + 1 day) asUTC asUnixTime asByteArray); nextPutAll: (32 asPaddedByteArray: 2); nextPutAll: (ByteArray readHexFrom: deviceId); nextPutAll: (payload size asPaddedByteArray: 2); nextPutAll: payload asByteArray ]. ip := NetNameResolver addressForName: 'gateway.push.apple.com' timeout: 30. stream := ZdcSecureSocketStream openConnectionToHost: ip port: 2195 timeout: 30. stream binary; shouldSignal: true; autoFlush: false; bufferSize: 4096; timeout: 30. stream sslSession enableLogging; certificateName: '/Users/norbert/multiprod.pem'. stream connect; nextPutAll: notification; flush; close. That is working and I receive the message on my phone. So basically the client certificate stuff seems to work. The awkward thing about it is that you have to specify a filename for the cert. I have the certificates in a database and writing a file everytime I want to send something is not that good. Especially not if there are concurrent requests for sending messages. There is one constraint for this to work. You specify a filename for certificate. In the file you need to have certificate and key. The plugin reads both from the same file. There is no code for specifying a CA chain. So this is resolved system wide and that means you need to install every CA for your certificate in the system. Norbert >> On 12 Jan 2016, at 16:05, Norbert Hartl <norbert(a)hartl.name> wrote: >> >> Is there a way to make SSL connections to the outside world using client certificates from pharo? >> >> thanks, >> >> Norbert >> >> >> > >

Jan. 15, 2016

Re: [Pharo-users] [ANN] OSSubprocess first milestone

by Mariano Martinez Peck

> > > Quick feedback: > > - the API seems great > - thank you very much for the documentation > Thanks! > - I wonder why you pass strings for stdout and stderr instead of streams > In which part exactly? In the method like #runAndWaitOnExitDo: ? if that was the question, then I simply thought it would be easier for the user to receive strings. In fact, internally I use streams, but just when I evaluate the closure I pass #contents. I think it's more common for users wanting a string than a stream. In either case, if they received a string they can do #readStreamDo:[] or whatever, and if they receive a stream they can do #contents. > - it would be nice to be able to subclass OSSUnixProcessExitStatus for > some commands. E.g., GitProcessExitStatus could have a method > isMergeConflict > That would be nice. > - how can I implement something like tail --follow > I think it would be nice to how an example of this type of streaming API. Note that this goes very similar to what Luc proposes below. Thanks for the feedback! -- Mariano http://marianopeck.wordpress.com

Jan. 15, 2016