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.
