Unfortunately, `raco make` may go wrong if its own implementation is not compiled.
You probably want `raco setup` or (equivalently) `racket -l setup`, which should be fast if it's just a matter of updating file timestamps. At Mon, 14 Sep 2015 20:20:39 -0500, Robby Findler wrote: > If you run "raco make -v cmdline2.rkt" you will see output if .zo > compilation is happening. > > Robby > > > On Mon, Sep 14, 2015 at 8:16 PM, John Carmack <[email protected]> wrote: > > No strace on Android, unfortunately. > > > > > > > > From: Marc Burns [mailto:[email protected]] > > Sent: Monday, September 14, 2015 8:10 PM > > To: John Carmack > > Cc: Racket Users > > Subject: Re: [racket-users] Startup times > > > > > > > > Here’s the result of `strace -c -f -- racket -l racket/base` for Racket > > 6.1.1.8 on my Linux workstation: > > > > > > > > % time seconds usecs/call calls errors syscall > > > > ------ ----------- ----------- --------- --------- ---------------- > > > > 99.08 0.004000 571 7 nanosleep > > > > 0.92 0.000037 0 236 read > > > > 0.00 0.000000 0 103 23 open > > > > 0.00 0.000000 0 79 close > > > > … > > > > > > > > Does it look similar on the Note 4? > > > > > > > > On Sep 14, 2015, at 9:00 PM, Marc Burns <[email protected]> wrote: > > > > > > > > Set the environment variable PLTSTDERR=debug to get more verbose output. > > > > > > > > Startup involves traversing all the bytecode files that comprise the base > > environment. How fast is filesystem access on the Note 4 compared to PC? You > > could use strace to find the latency on different system calls made during > > startup. > > > > > > > > On Sep 14, 2015, at 8:55 PM, John Carmack <[email protected]> wrote: > > > > > > > > I am experimenting with running racket natively on Android to compare with > > my current embedded Chibi scheme implementation. It would be convenient to > > just leave racket as a separate process and communicate over sockets/pipes > > so it exactly mimics my remote development case. > > > > > > > > The startup time to run a trivial console program is very long. A one line > > program with #lang racket/base takes over seven seconds: > > > > > > > > root@trlte:/mnt/shell/emulated/0/Oculus/racket/bin # time ./racket > > cmdline2.rkt > > > > cmdline2.rkt > > < > > > > line 1 > > > > line 2 > > > > line 3 > > > > line 4 > > > > line 5 > > > > line 6 > > > > line 7 > > > > line 8 > > > > line 9 > > > > 0m7.96s real 0m7.04s user 0m0.65s system > > > > > > > > My first test, which still had the default #lang racket, took almost a > > minute to start: > > > > > > > > root@trlte:/mnt/shell/emulated/0/Oculus/racket/bin # time ./racket > > cmdline.rkt > > > > cmdline.rkt > > < > > > > line 1 > > > > line 2 > > > > line 3 > > > > line 4 > > > > line 5 > > > > line 6 > > > > line 7 > > > > line 8 > > > > line 9 > > > > 0m54.16s real 0m48.68s user 0m4.83s system > > > > > > > > On a PC, it only takes a fraction of a second. This was on a Note 4, which > > should not be 100x slower than a PC. Could it not be using the compiled > > library bytecode somehow? I didn’t see any command line options for verbose > > output on startup, is there any way to force some extra information? > > > > > > > > > > > > -- > > You received this message because you are subscribed to the Google Groups > > "Racket Users" group. > > To unsubscribe from this group and stop receiving emails from it, send an > > email to [email protected]. > > For more options, visit https://groups.google.com/d/optout. > > > > > > > > > > > > -- > > You received this message because you are subscribed to the Google Groups > > "Racket Users" group. > > To unsubscribe from this group and stop receiving emails from it, send an > > email to [email protected]. > > For more options, visit https://groups.google.com/d/optout. > > > > > > > > -- > > You received this message because you are subscribed to the Google Groups > > "Racket Users" group. > > To unsubscribe from this group and stop receiving emails from it, send an > > email to [email protected]. > > For more options, visit https://groups.google.com/d/optout. > > -- > You received this message because you are subscribed to the Google Groups > "Racket Users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
