I'm saying that the plots generated from my local J7 are noticeably slower than the J6 equivalent. I just now timed (after loading "plot"):
'type surface' plot +/~2 o. i:5j99 In J6 (console mode running jee), this is nearly instantaneous - perhaps 0.5 s; in J7, it takes about 3 s. Similarly, resizing the plot window is virtually immediate in J6 but takes about 2 s in J7. I also notice that J6 remembers the last size to which I resized the plot window - a subsequent plot after I've killed the plot window comes up in the same place at the same size to which the previous plot was set - whereas J7 brings up the same size plot each time. In the past, I've found this (J6) persistence useful. I was assuming that this is due to the change to GTK but don't really know why. I haven't looked into the nitty-gritty of the GTK stuff yet but this may motivate me to do so. I see by burrowing down into the "jwplot" namespace that the high-level code I've perused looks the same between the two versions, so this is encouraging. However, I also see that there are obvious differences as (#@:nl_jwplot_) &> 0 1 2 3 returns "325 0 0 9" in J6 but "173 0 0 0" in J7. On Thu, Feb 10, 2011 at 11:52 AM, Eric Iverson <[email protected]>wrote: > Are you saying that jhs GC plots are much slower in the last few weeks over > earlier versions? > > This surprises me. However, there was a change that could be investigated. > Some weeks ago jhs GC plot was changed to use a more compact encoding of > data sent to the GC server. This allowed more data (2 to 3 times) to be > sent > to the chart server. The encoding is pretty simple and I doubt it makes any > timing difference at all on the J side. I guess there is a small chance the > GC server could be slower in doing the decoding. All in all seems unlikely. > I suspect network delays or perhaps a loading problem at the GC server. > > On Thu, Feb 10, 2011 at 10:46 AM, Devon McCormick <[email protected] > >wrote: > > > I mentioned at NYCJUG the other night that I've noticed slowness in > > plotting > > compared to the older version - both in the initial rendering and when > you > > manually resize the window. > > > > On Thu, Feb 10, 2011 at 10:18 AM, Daniel Durieu <[email protected] > > >wrote: > > > > > -Lab 1 : A J introduction > > > is working perfectly under JHS > > > just one remark: from time to time plotting is very slow > > > ... > > > > > > > > > -- > > Devon McCormick, CFA > > ^me^ at acm. > > org is my > > preferred e-mail > > ---------------------------------------------------------------------- > > For information about J forums see http://www.jsoftware.com/forums.htm > > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > -- Devon McCormick, CFA ^me^ at acm. org is my preferred e-mail ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
