If you want to get more deeply into JVM memory tuning, *perhaps* jClarity's Censum tool can help: https://www.jclarity.com/censum/. It will run an analysis of your specific applications memory usage patterns and make suggestions how to configure the JVM for it.
Aria Media Sagl +41 (0)76 303 4477 cell skype: ariamedia On Mon, Mar 28, 2016 at 4:45 PM, Gary Trakhman <gary.trakh...@gmail.com> wrote: > I always work in a single process, REPL and server, there's no need to > separate them out generally. > > You might have better luck with the G1 collector, in addition to JVM > tuning. The G1 has the useful property of giving memory back to the OS > when a GC is performed. > Use the command-line flag: -XX:+UseG1GC > > If this is confusing, in short, PHP is 'interpreted', thus it's leaner and > slower than a 'compiled' language like clojure. There's a lot of stuff > that needs to be loaded for clojure to work (the compiler lives in memory), > and you'll take a hit in startup-time and memory footprint. Some of this > is java-specific, probably CLJS on V8 can do better in terms of memory > footprint. > > On Mon, Mar 28, 2016 at 10:36 AM Michael Willis <willismich...@gmail.com> > wrote: > >> You can tune memory usage by passing parameters to the JVM: >> >> http://docs.oracle.com/cd/E19900-01/819-4742/abeik/index.html >> >> The sample leiningen project file has an example of how to pass >> parameters to the JVM: >> >> >> https://github.com/technomancy/leiningen/blob/master/sample.project.clj#L264 >> >> Hope that helps, >> Michael Willis >> >> >> >> On Monday, March 28, 2016 at 7:11:49 AM UTC-5, Jason Basanese wrote: >>> >>> Hello all! I'm new to this forum. My name Is Jason Basanese and I am a >>> relatively new clojurist. >>> >>> I recently began hosting my first small full stack Clojure web app. >>> While doing this I ran into memory problems with my admittedly small load >>> server. The maximum it can take in temp memory is 741MB. Too much of that >>> memory is consumed giving an error when I try to run two REPLs on the >>> server. One for testing and editing code and the other for leaving the app >>> running. My other dynamic content websites which use php directly with >>> Apache use minimal memory. Why is it that running a Clojure app like such >>> "lein run -m clojureweb.core/serve" takes up so much memory? Here is the >>> code of the function I am running with that command. >>> >>> (defn serve [& args] >>> (org.apache.log4j.BasicConfigurator/configure) >>> (run-server >>> (logger/wrap-with-logger >>> (reload/wrap-reload app)) >>> {:port 8080})) >>> >>> Are the logger or the wrap-reload making it take up so much memory? Is >>> there a better way to run Clojure apps that is less robust? Or is using a >>> relatively large amount of memory just a bullet to bite when using Clojure? >>> Yes I know an obvious solution would just be to upgrade the server, but >>> where's the fun in that? >>> >>> Requests for more detail, comments, answers and opinions all welcome! >>> >>> -- >> You received this message because you are subscribed to the Google >> Groups "Clojure" group. >> To post to this group, send email to clojure@googlegroups.com >> Note that posts from new members are moderated - please be patient with >> your first post. >> To unsubscribe from this group, send email to >> clojure+unsubscr...@googlegroups.com >> For more options, visit this group at >> http://groups.google.com/group/clojure?hl=en >> --- >> You received this message because you are subscribed to the Google Groups >> "Clojure" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to clojure+unsubscr...@googlegroups.com. >> For more options, visit https://groups.google.com/d/optout. >> > -- > You received this message because you are subscribed to the Google > Groups "Clojure" group. > To post to this group, send email to clojure@googlegroups.com > Note that posts from new members are moderated - please be patient with > your first post. > To unsubscribe from this group, send email to > clojure+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/clojure?hl=en > --- > You received this message because you are subscribed to the Google Groups > "Clojure" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to clojure+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
