Depends on the size I'd say but in theory yes. Lots of things factor into the compilation times, even tiny namespaces can take a long time to compile if some macro just takes a long time to do its thing.
On Friday, January 17, 2020 at 11:18:21 AM UTC+1, Khalid Jebbari wrote: > > Thanks for the detailed answer. Does it somewhat mean that splitting code > into smaller namespaces can achieve faster compilation thanks to > parallelization ? > > > On Fri, Jan 17, 2020 at 10:43 AM Thomas Heller <th.h...@gmail.com > <javascript:>> wrote: > >> It depends on the namespaces used. In general a CLJS namespaces can only >> be compiled once all its dependencies have been compiled. So if those >> dependendencies can be compiled in parallel they will use multiple threads >> from a pool, which should keep all cores busy. In my experience a good >> balance between core count and core speed matters. If you have big >> namespaces that a lot of other namespaces depend on (eg. like cljs.core) >> then its compilation will "block" all other threads so its important it >> finishes fast (ie. fast cores). If you have lots a small namespaces that >> are mostly independent then you can get maximum parallelization (ie. many >> cores). >> >> I have a i7-8700K 6c and there are builds that aren't able to use all >> cores due to the namespace setup (few very large ones). Others happily use >> everything. Single core difference is gigantic to my previous CPU from a >> macbook pro 2016. >> >> If you really really want to torture your CPU you can try >> https://github.com/mfikes/fifth-postulate or >> https://github.com/mfikes/coal-mine to compare. >> >> HTH, >> Thomas >> >> On Friday, January 17, 2020 at 5:29:06 AM UTC+1, Khalid Jebbari wrote: >>> >>> Hello, >>> >>> We're using the parallel build option, and I noticed the difference in >>> speed between my laptop and other laptops is basically proportional to the >>> difference in speed of the CPUs (based on notebookcheck's benchmarks). I >>> have 4C/8T 7700HQ CPU and my colleagues have a 8565U iirc (some have the >>> 6600U). Mine is almost twice as fast in benchmarks, which is reflected in >>> cljs compilation times. >>> >>> So my question is how does the cljs compiler scale with regards to CPU? >>> Core count? Single thread perf? All cores frequencies? Is it capped to some >>> number of cores? >>> >>> -- >> Note that posts from new members are moderated - please be patient with >> your first post. >> --- >> You received this message because you are subscribed to a topic in the >> Google Groups "ClojureScript" group. >> To unsubscribe from this topic, visit >> https://groups.google.com/d/topic/clojurescript/PwpVJNrF0Zc/unsubscribe. >> To unsubscribe from this group and all its topics, send an email to >> clojur...@googlegroups.com <javascript:>. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/clojurescript/7a967f70-995e-49d3-9b25-a5b327689736%40googlegroups.com >> >> <https://groups.google.com/d/msgid/clojurescript/7a967f70-995e-49d3-9b25-a5b327689736%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> > -- Note that posts from new members are moderated - please be patient with your first post. --- You received this message because you are subscribed to the Google Groups "ClojureScript" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojurescript+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/clojurescript/fe80b84a-4c23-4789-9b27-8f84c631d93d%40googlegroups.com.
