# Ruby-prof on Ruby 1.9 woes **URL:** \ **Category:** Ruby\ **Created:** [August 22, 2009, 4:58am UTC](https://www.ruby-forum.com/t/ruby-prof-on-ruby-1-9-woes/174195 "2009-08-22T04:58:45Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![Shot\_SPiotr\_S.S](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/e79b87/32.png) [@Shot\_SPiotr\_S.S](https://www.ruby-forum.com/u/Shot_SPiotr_S.S)\ **Post date:** [August 22, 2009, 4:58am UTC](https://www.ruby-forum.com/t/ruby-prof-on-ruby-1-9-woes/174195/1 "2009-08-22T04:58:45Z")
I’m trying to use ruby-prof with Ruby 1.9.1p243 on 64-bit Ubuntu. The current released version doesn’t work, but a gem built from the ruby-prof’s svn repo’s trunk at least installs properly. Unfortunately, when trying to profile a Ruby 1.9 it breaks as described at [http://redmine.ruby-lang.org/issues/show/1227](http://redmine.ruby-lang.org/issues/show/1227) I tried to clone [http://github.com/trafficbroker/ruby-prof](http://github.com/trafficbroker/ruby-prof) and ‘rake gem’, but a subsequent ‘gem install’ attempt results in Building native extensions. This could take a while… ERROR: Error installing ruby-prof-0.7.3.2.gem: ERROR: Failed to build gem native extension. /home/shot/opt/ruby-1.9.1-p243/bin/ruby extconf.rb install ruby-prof-0.7.3.2.gem checking for sys/times.h… yes checking for rb\_os\_allocated\_objects()… no checking for rb\_gc\_allocated\_size()… no checking for rb\_gc\_collections()… no checking for rb\_gc\_time()… no checking for rb\_heap\_total\_mem()… no checking for rb\_gc\_heap\_info()… no checking for rb\_gc\_malloc\_allocations()… no checking for rb\_gc\_malloc\_allocated\_size()… no creating Makefile make gcc -I. -I/home/shot/opt/ruby-1.9.1-p243/include/ruby-1.9.1/x86\_64-linux -I/home/shot/opt/ruby-1.9.1-p243/include/ruby-1.9.1/ruby/backward -I/home/shot/opt/ruby-1.9.1-p243/include/ruby-1.9.1 -I. -DHAVE\_SYS\_TIMES\_H -fPIC -O2 -g -Wall -Wno-parentheses -o ruby\_prof.o -c ruby\_prof.c ruby\_prof.c:890: error: expected declaration specifiers or ‘…’ before ‘NODE’ ruby\_prof.c: In function ‘prof\_event\_hook’: ruby\_prof.c:1137: error: ‘node’ undeclared (first use in this function) ruby\_prof.c:1137: error: (Each undeclared identifier is reported only once ruby\_prof.c:1137: error: for each function it appears in.) ruby\_prof.c:1137: error: too many arguments to function ‘get\_method’ ruby\_prof.c:1143: warning: passing argument 5 of ‘get\_method’ makes pointer from integer without a cast ruby\_prof.c:1143: error: too many arguments to function ‘get\_method’ make: \*\*\* [ruby\_prof.o] Error 1 I finally tried to use upstream ruby-prof 0.7.3 patched just with the patch from [http://redmine.ruby-lang.org/issues/show/1227#note-6](http://redmine.ruby-lang.org/issues/show/1227#note-6) but this makes the profiling run for ages in most of my cases. I even tested this in a freshly-setup 32-bit Ubuntu, but with the same results. 😑 Does anyone know of a way to make ruby-prof work in sensible time in my case? Steps to reproduce: 1. Install any ruby-prof version that’s supposed to work with Ruby 1.9 2. git clone git://github.com/Chastell/art-decomp.git 3. cd art-decomp 4. export RUBYOPT="$RUBYOPT -Ku’ # -Ku doesn’t work in shebang on Linux $ time bin/inputs kiss/s510 … real 0m0.571s user 0m0.468s sys 0m0.008s $ time bin/inputs kiss/s420 … real 0m1.183s user 0m1.040s sys 0m0.012s $ time ruby-prof bin/inputs kiss/s510 … real 0m2.862s user 0m2.100s sys 0m0.556s $ time ruby-prof bin/inputs kiss/s420 … [take ages, but does finish eventually] — Shot ---
**Author:** ![Shot\_SPiotr\_S.S](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/e79b87/32.png) [@Shot\_SPiotr\_S.S](https://www.ruby-forum.com/u/Shot_SPiotr_S.S)\ **Post date:** [August 22, 2009, 7:09pm UTC](https://www.ruby-forum.com/t/ruby-prof-on-ruby-1-9-woes/174195/2 "2009-08-22T19:09:49Z")
> The current released version doesn’t work, but a gem built from the > ruby-prof’s svn repo’s trunk at least installs properly. Unfortunately, > when trying to profile a Ruby 1.9 it breaks as described at > [http://redmine.ruby-lang.org/issues/show/1227](http://redmine.ruby-lang.org/issues/show/1227) The patches there don’t fix it? -r ---
**Author:** ![Shot\_SPiotr\_S.S](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/e79b87/32.png) [@Shot\_SPiotr\_S.S](https://www.ruby-forum.com/u/Shot_SPiotr_S.S)\ **Post date:** [August 23, 2009, 12:45am UTC](https://www.ruby-forum.com/t/ruby-prof-on-ruby-1-9-woes/174195/3 "2009-08-23T00:45:49Z")
Roger P.: > > The current released version doesn’t work, but a gem built from the > > ruby-prof’s svn repo’s trunk at least installs properly. Unfortunately, > > when trying to profile a Ruby 1.9 it breaks as described at > > [http://redmine.ruby-lang.org/issues/show/1227](http://redmine.ruby-lang.org/issues/show/1227) > The patches there don’t fix it? The patch there fixes the trunk version of ruby-prof in that it does work under Ruby 1.9, but ruby-prof runs for ages in most cases (cases which seem quite similar to ones where it behaves – and I never had this kind of problems with ruby-prof under Ruby 1.8). Basically, while it makes the whole program run a bit slower (which is understandable), the compilation of the final report takes ridiculously long. I’ll see whether backporting my code to Ruby 1.8 is a viable option and if so whether profiling it then makes a difference with regards to run times. — Shot ---
**Author:** ![Shot\_SPiotr\_S.S](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/e79b87/32.png) [@Shot\_SPiotr\_S.S](https://www.ruby-forum.com/u/Shot_SPiotr_S.S)\ **Post date:** [August 24, 2009, 4:27pm UTC](https://www.ruby-forum.com/t/ruby-prof-on-ruby-1-9-woes/174195/4 "2009-08-24T16:27:01Z")
Thanks, Roger, for all your prompt and to-the-point help! 🙂 Roger P.: > > Basically, while it makes the whole program run a bit slower (which > > is understandable), the compilation of the final report takes > > ridiculously long. > gem install jeremy-ruby-prof > might help? Perfect, thank you! (I do like the ease-of-forking granted by Git/GitHub, but choosing _which_ ruby-prof fork there has the right combination of working-under-Ruby-1.9 and performance was too much for me, apparently.) Now off to figure why does this version produces a 48 MiB HTML profile (with tons of distinct references like Set#&-2388) while the slow-as-melasses one produces a 1.4 MiB HTML profile (with all the Set#& calls combined into Set#& and Set#&-1)… — Shot ---
**Author:** ![Shot\_SPiotr\_S.S](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/e79b87/32.png) [@Shot\_SPiotr\_S.S](https://www.ruby-forum.com/u/Shot_SPiotr_S.S)\ **Post date:** [August 23, 2009, 7:39pm UTC](https://www.ruby-forum.com/t/ruby-prof-on-ruby-1-9-woes/174195/5 "2009-08-23T19:39:46Z")
> Basically, while it > makes the whole program run a bit slower (which is understandable), the > compilation of the final report takes ridiculously long. gem install jeremy-ruby-prof might help? -r