Does the executable from the package have debugging info stripped away? The Racket JIT needs some DWARF information to reconstruct the call stack for backtraces and profiling on x86_64.
At Fri, 16 Nov 2012 13:18:54 -0200, Diogo F. S. Ramos wrote: > I'm using Ubuntu 12.04 x86_64 and the statistical profiler is not > returning a report with the procedures called during the execution of a > thunk. > > The package installed through the PPA (using apt-get) was > `5.3.1-20121108~precise'. > > I've attached a test program at the bottom of this message. > > When the program is run using `racket --no-jit ...', a report is > printed, with the procedures called, but when I run it using `racket > ...', no procedure is listed. > > $ racket fib-profile.rkt > Profiling results > ----------------- > Total cpu time observed: 2514ms (out of 2592ms) > Number of samples taken: 50 (once every 50ms) > > ==================================== > Caller > Idx Total Self Name+srcLocal% > ms(pct) ms(pct) Callee > ==================================== > > $ racket --no-jit fib-profile.rkt > Profiling results > ----------------- > Total cpu time observed: 86859ms (out of 86997ms) > Number of samples taken: 1728 (once every 50ms) > > ============================================================= > Caller > Idx Total Self Name+src Local% > ms(pct) ms(pct) Callee > ============================================================= > [1] 86859(100.0%) 0(0.0%) profile-thunk12 > ...t/collects/profile/main.rkt:9:0 > call-handled-body [2]100.0% > ------------------------------------------------------------- > profile-thunk12 [1] 100.0% > [2] 86859(100.0%) 0(0.0%) call-handled-body ...private/more- > scheme.rkt:204:2 > run [3] 100.0% > ------------------------------------------------------------- > call-handled-body [2]100.0% > [3] 86859(100.0%) 0(0.0%) run > ...share/racket/collects/profile/main.rkt:29:2 > temp1 [4] 100.0% > ------------------------------------------------------------- > run [3] 100.0% > [4] 86859(100.0%) 0(0.0%) temp1 /tmp/fib-profile.rkt:11:1 > fib [5] 100.0% > ------------------------------------------------------------- > temp1 [4] 18.6% > fib [5] 81.4% > [5] 86859(100.0%) 86859(100.0%) fib /tmp/fib-profile.rkt:5:0 > fib [5] 81.4% > ------------------------------------------------------------- > > I'm suspicious of the package because I can get a report using the JIT > if I compile Racket from the git repository using the tag v5.3 and tag > v5.3.1 and also with the released source distribution v5.3.1 from the > website. > > ;;; fib-profile.rkt > #lang racket > > (require profile) > > (define (fib n) > (if (<= n 2) > 1 > (+ (fib (- n 1)) (fib (- n 2))))) > > (profile-thunk > (thunk (fib 38)) > #:repeat 4) > ____________________ > Racket Users list: > http://lists.racket-lang.org/users ____________________ Racket Users list: http://lists.racket-lang.org/users
