N could equal 1 under circumstances that make T small enough or d large enough. T might be small for a tiny collection, or d large for a large collection. Access pattern might matter, too. If a particular sequence of inserts causes a lot of worst-case tree rotations or something, say, maybe it could make the next insert particularly expensive to perform, but only for a persistent collection. I'd have to dig into the actual implementation to be more certain.
I'd expect that N will be greater than 1 for all but fairly atypical circumstances, though, which fits with a few observations of transients being faster for a tiny number of operations and many observations of transients not being faster for a tiny number of operations. On Fri, Nov 9, 2012 at 10:12 AM, Jim foo.bar <jimpil1...@gmail.com> wrote: > exactly the point I was trying to make! However, other peoples' experiment > seem not to agree with that! > > Jim > > > > On 09/11/12 15:09, Cedric Greevey wrote: > >> In the real world, it's more complicated than that, and N could end up >> not only depending on which transient operations and on vector vs. map but >> even on details of the system hardware, Clojure version, and JVM version. >> However it's likely to be a small integer in every case, so if you're doing >> dozens or hundreds or more of operations, transients will generally help, >> and if you're only doing one or two, don't bother. >> > > -- > 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+unsubscribe@**googlegroups.com<clojure%2bunsubscr...@googlegroups.com> > For more options, visit this group at > http://groups.google.com/**group/clojure?hl=en<http://groups.google.com/group/clojure?hl=en> > -- 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
