[racket] big-bang is slow to render on screen?

Indeed, I have no stacktrace for the program `#lang racket (error "auie")`
without `-l errortrace` (but I have one with it) on the command line.
(exceptions are printed, but line numbers are not)

When I run it inside DrRacket (where I do have traces) I still get an empty
profile:
Profiling results
-----------------
  Total cpu time observed: 710ms (out of 1232ms)
  Number of samples taken: 337 (once every 2ms)
  Threads observed:        2

====================================
                        Caller
Idx  Total    Self    Name+srcLocal%
     ms(pct)  ms(pct)   Callee
====================================


Laurent


On Tue, Apr 22, 2014 at 3:57 PM, Robby Findler
<robby at eecs.northwestern.edu>wrote:

> When I tried this on my machine I didn't get an empty profile so that is
> strange.
>
> Do you get (non errortrace) stacktraces for errors in general?
>
> Robby
>
>
> On Tuesday, April 22, 2014, Laurent <laurent.orseau at gmail.com> wrote:
>
>> No luck (empty profile). I also tried with errortrace and with
>> providing/requiring main instead of dynamic-require and calling main in the
>> profiling, but same effect.
>>  I had actually already tried also before posting, and this is why I used
>> these explicit `time` and `current-milliseconds` calls.
>>
>> I think the program itself is fast enough, but that it may make numerous
>> X calls, that make Xorg use 100% cpu during those seconds.
>> No idea what these calls might be though.
>>
>> I also tried on a different computer (older, but recent Mint), and it
>> works fine. Looks very local to my computer then.
>>
>> Laurent
>>
>> On Tue, Apr 22, 2014 at 1:41 PM, Robby Findler <
>> robby at eecs.northwestern.edu> wrote:
>>
>> I'm not sure if this will work, but here's an attempt to profile a
>> 2htdp/universe program. If you put your program in one file called,
>> say, tmp.rkt and then run the program below (closing the big-bang
>> window after a while), you should get a profile of something. Maybe it
>> will be useful.
>>
>> #lang racket
>>
>> (require profile)
>> (profile
>>  (dynamic-require "tmp.rkt" #f)
>>  #:threads #t)
>>
>> Robby
>>
>> On Tue, Apr 22, 2014 at 6:30 AM, Laurent <laurent.orseau at gmail.com>
>> wrote:
>> > Thank you all for your answers. The problem seems to be on my end then.
>> > However, some other graphic programs that draw in a canvas are not slow
>> on
>> > my computer.
>> >
>> > Does `big-bang` do something in particular regarding graphics?
>> >
>> > Laurent
>> >
>> >
>> > On Mon, Apr 21, 2014 at 10:29 PM, David Vanderson
>> > <david.vanderson at gmail.com> wrote:
>> >>
>> >> It's fast for me - Linux Mint, both Racket 6.0 and 6.0.1.5 (from git
>> just
>> >> now) with cairo 2.11200.2.
>> >>
>> >> Dave
>> >>
>> >>
>> >> On 04/21/2014 11:10 AM, Laurent wrote:
>> >>
>> >> My version of Cairo is 2.11000.2. What's yours, Sean?
>> >> (probably: ls /usr/lib/i386-linux-gnu/libcairo.so*)
>> >>
>> >>
>> >> On Mon, Apr 21, 2014 at 4:51 PM, Robby Findler
>> >> <robby at eecs.northwestern.edu> wrote:
>> >>>
>> >>> If the versions of Cairo are the same, then that eliminates one
>> >>> possible route of inquiry.
>> >>>
>> >>> Robby
>> >>>
>> >>> On Mon, Apr 21, 2014 at 9:45 AM, Laurent <laurent.orseau at gmail.com>
>> >>> wrote:
>> >>> > Thanks Sean.
>> >>> > (I forgot to mention that I was testing on Racket 6.0.1.4).
>> >>> > Apparently it does not lag on your machine, so it might be
>> particular
>> >>> > to my
>> >>> > machine then? Strange.
>> >>> >
>> >>> >
>> >>> > On Mon, Apr 21, 2014 at 4:32 PM, Sean Kanaley <skanaley at gmail.com>
>> >>> > wrote:
>> >>> >>
>> >>> >> Here's my log after pasting the source into command-line racket
>> 6.0,
>> >>> >> Ubuntu 12.04 32-bit:
>> >>> >>
>> >>> >> to-draw at 1649
>> >>> >>
>> >>> >> to-draw: cpu time: 0 real time: 2 gc time: 0
>> >>> >> on-key a at 2934
>> >>> >> to-draw at 2934
>> >>> >>
>> >>> >> to-draw: cpu time: 0 real time: 2 gc time: 0
>> >>> >> on-key s at 2970
>> >>> >> to-draw at 2970
>> >>> >>
>> >>> >> to-draw: cpu time: 4 real time: 3 gc time: 0
>> >>> >> on-key d at 3044
>> >>> >> on-key f at 3044
>> >>> >> to-draw at 3045
>> >>> >>
>> >>> >> to-draw: cpu time: 0 real time: 0 gc time: 0
>> >>> >> to-draw at 3069
>> >>> >> to-draw: cpu time: 0 real time: 1 gc time: 0
>> >>> >> on-key a at 3198
>> >>> >> on-key s at 3198
>> >>> >> to-draw at 3199
>> >>> >>
>> >>> >> to-draw: cpu time: 4 real time: 3 gc time: 0
>> >>> >> to-draw at 3329
>> >>> >>
>> >>> >> to-draw: cpu time: 4 real time: 1 gc time: 0
>> >>> >> to-draw at 3392
>> >>> >> to-draw: cpu time: 0 real time: 1 gc time: 0
>> >>> >> on-key g at 3430
>> >>> >> on-key j at 3430
>> >>> >> on-key k at 3430
>> >>> >> to-draw at 3430
>> >>> >>
>> >>> >> to-draw: cpu time: 4 real time: 1 gc time: 0
>> >>> >> to-draw at 3467
>> >>> >> to-draw: cpu time: 0 real time: 1 gc time: 0<
>>
>>
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