Hi
When I start my project with appengine alone (without gwt devmode) it
compiles fast - so this may be a problem with AppEngineLauncher?
Here's my target starting appengine
<target name="server" description="Run the AppEngine development
server">
<echo message="PLEASE BROWSE TO: http://localhost:8080/${gwt.startupUrl}"/>
<java
classname="com.google.appengine.tools.development.DevAppServerMain"
classpath="${appengine.sdk}/lib/appengine-tools-api.jar" fork="yes">
<arg value="war" />
<jvmarg value="-javaagent:${appengine.sdk}/lib/agent/appengine-
agent.jar"/>
</java>
</target>
Cheers
Simon
On Dec 30 2009, 8:29 pm, Simon Vogensen <[email protected]> wrote:
> Hi again
>
> The funny thing is that on my machine (a macbook pro 2.66 ghz dual
> core) all jsp files takes about 1:45 minutes to compile.. even the
> ones with no logic..
>
> Cheers
> Simon
>
> On Dec 30, 2:50 pm, Simon Vogensen <[email protected]> wrote:
>
>
>
> > Hi
>
> > Im having the same problems.. every time I change a .jsp file it takes
> > up to 3 min to recompile it..
> > My project is very small, there's almost no data in the datastore. The
> > jsp file is also very small.
> > I should say that im running appengine through devmode on a mac with
> > snow leopard.
> > I have tried profiling with Visualvm and get the following hotspots
> > (this shows the load of one jsp recompile)..
>
> > org.apache.tools.ant.taskdefs.StreamPumper.run() 40.26772
> > 208150 ms
> > (40.3%) 2
> > org.mortbay.jetty.Server.handle(org.mortbay.jetty.HttpConnection)
> > 20.24753 104662 ms (20.2%) 13
> > java.lang.UNIXProcess$2$1.run() 20.171682 104270 ms (20.2%) 1
> > java.util.concurrent.ThreadPoolExecutor$Worker.run() 10.060698
> > 52005
> > ms (10.1%) 1
> > sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run() 9.137142
> > 47231 ms (9.1%) 2
> > com.google.appengine.api.datastore.dev.LocalDatastoreService.runQuery
> > (com.google.appengine.tools.development.LocalRpcService.Status,
> > com.google.apphosting.api.DatastorePb.Query) 0.0101551 58.5 ms (0%) 11
>
> > Most of the time when recompiling it seems its waiting for IO or
> > something - the cpu is almost idle.
>
> > My ant target looks like this..
>
> > <target name="devmode" depends="javac" description="Run development
> > mode">
> > <java failonerror="true" fork="true"
> > classname="com.google.gwt.dev.DevMode">
> > <classpath>
> > <pathelement location="src"/>
> > <path refid="project.class.path"/>
> > <path refid="tools.class.path"/>
> > </classpath>
> > <jvmarg value="-Xmx512M"/>
> > <jvmarg value="-javaagent:${appengine.sdk}/lib/agent/appengine-
> > agent.jar"/>
> > <jvmarg value="-Xdebug"/>
> > <jvmarg value="-
> > Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=5005"/>
> > <arg value="-startupUrl"/>
> > <arg value="${gwt.startupUrl}"/>
> > <!-- Additional arguments like -style PRETTY or -logLevel DEBUG
> > -->
> > <arg value="-server"/>
> > <arg
> > value="com.google.appengine.tools.development.gwt.AppEngineLauncher"/>
> > <arg value="${gwt.module}"/>
> > </java>
> > </target>
>
> > Cheers
> > Simon
>
> > On Nov 17, 6:04 pm, Toby Reyelts <[email protected]> wrote:
>
> > > On Sat, Nov 14, 2009 at 1:01 PM, Steph <[email protected]> wrote:
> > > > This happens:
> > > > - running dev_appserver
> > > > - with JSP files of just any size.
> > > > - seems to be blocking on initializing the datastore
>
> > > Can you elaborate on this part a bit more? What are you seeing that makes
> > > you think it's "initializing the datastore"? Are you restarting the entire
> > > dev_appserver after modifying the jsp? How large is your datastore (e.g.
> > > how
> > > many entities, how many properties per entity, average size of each
> > > property).
>
> > > If you can file an issue with a very simple webapp that reproduces the
> > > problem, that would be the best way for us to track the problem down.
> > > Alternatively, you could hook a profiler up to the dev_appserver yourself
> > > (for example, visualvm, hprof, or jprofiler). With three minutes of
> > > execution time, there should be a pretty obvious hotspot.
>
> > > > I tried to set --jvm_flag=-Xmx1G in my dev_appserver.cmd file but it
> > > > does not seem to help much (i don't use eclipse)
> > > > Another other advice?
>
> > > > On Nov 13, 12:00 pm, Toby Reyelts <[email protected]> wrote:
> > > > > Wow, that sounds bad. You're saying that this happens while running
> > > > > the
> > > > > dev_appserver (not appcfg), and you're only modifying one JSP file? Is
> > > > that
> > > > > JSP file huge? Try raising the heap size of your JVM. For example, if
> > > > you're
> > > > > using Eclipse, set -Xmx1G in the JVM arguments for your launch
> > > > > config. If
> > > > > you're running the dev_appserver from the command line, use
> > > > > --jvm_flag=-Xmx1G.On Fri, Nov 13, 2009 at 12:51 PM, Steph <
> > > > [email protected]> wrote:
> > > > > > When modifying a JSP in the war directory, it can take up to 3
> > > > > > minutes
> > > > > > for the JSP to recompile and the page to render (I am on a brand new
> > > > > > dual-core CPU 2.66 Ghz).
>
> > > > > > Is there a way that the JSP compile time can be speed up? This
> > > > > > slowness makes development almost unbearable. Thanks for your help.
>
> > > > > > --
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