Aman Karmani tmm1
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| hi |
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| <html> | |
| <head> | |
| <title>flamegraph</title> | |
| <style> | |
| body { | |
| margin: 0; | |
| padding: 0; | |
| font-family: Monaco, "Liberation Mono", Courier, monospace; | |
| font-size: 10pt; | |
| } |
tmm1
/ gist:8393897
Last active
February 15, 2021 21:18
from the ruby-core list: http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-core/59728
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| Ruby 2.1.0 in Production: known bugs and patches | |
| Last week, we upgraded the github.com rails app to ruby 2.1.0 in production. | |
| While testing the new build for rollout, we ran into a number of bugs. Most of | |
| these have been fixed on trunk already, but I've documented them below to help | |
| anyone else who might be testing ruby 2.1 in production. | |
| @naruse I think we should backport these patches to the ruby_2_1 branch and | |
| release 2.1.1 sooner rather than later, as some of the bugs are quite critical. | |
| I'm happy to offer any assistance I can to expedite this process. |
tmm1
/ perftools-pause.patch
Created
December 18, 2013 23:19
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| diff --git a/src/gperftools/profiler.h b/src/gperftools/profiler.h | |
| index 95b107f..816468d 100644 | |
| --- a/src/gperftools/profiler.h | |
| +++ b/src/gperftools/profiler.h | |
| @@ -139,6 +139,8 @@ PERFTOOLS_DLL_DECL void ProfilerStop(); | |
| */ | |
| PERFTOOLS_DLL_DECL void ProfilerFlush(); | |
| +PERFTOOLS_DLL_DECL void ProfilerPause(); | |
| +PERFTOOLS_DLL_DECL void ProfilerResume(); |
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| $ cat ruby_mcache.stp | |
| probe process("/usr/bin/ruby").mark("method__cache__clear") | |
| { | |
| module = kernel_string($arg1) | |
| file = kernel_string($arg2) | |
| line = $arg3 | |
| printf("%s(%d) %s %s:%d cleared `%s'\n", execname(), pid(), $$name, file, line, module) | |
| } | |
| $ sudo stap ruby_mcache.stp |
tmm1
/ gc_hook.rb
Last active
December 30, 2015 03:09
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| # gc_hook.rb | |
| # Usage: RUBYOPT=-r./gc_hook.rb ruby app.rb | |
| =begin | |
| GC::Profiler.enable | |
| at_exit{ GC::Profiler.raw_data.map{ |d| p(d) } } | |
| =end | |
| require 'objspace' | |
| ObjectSpace.gc_hook = proc { |before, after| |
tmm1
/ vimrc
Created
November 26, 2013 10:07
— forked from alloy/gist:7527832
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| " These VIM rules match the MRI C indentation rules. | |
| " | |
| " To enable use of this project specific config, add the following to your | |
| " ~/.vimrc: | |
| " | |
| " " Enable per-directory .vimrc files | |
| " set exrc | |
| " " Disable unsafe commands in local .vimrc files | |
| " set secure |
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| diff --git a/extconf.rb b/extconf.rb | |
| index 9f6f0c7..674eb08 100644 | |
| --- a/extconf.rb | |
| +++ b/extconf.rb | |
| @@ -9,6 +9,7 @@ have_header('ruby/st.h') | |
| have_func('rb_exec_recursive', 'ruby.h') | |
| have_func('rb_exec_recursive_paired', 'ruby.h') | |
| have_func('rb_proc_lambda_p', 'ruby.h') | |
| +have_func('rb_obj_hide', 'ruby.h') | |
| if Hash.method_defined?(:flatten) |
tmm1
/ heapprof.rb
Last active
December 28, 2015 21:09
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| # encoding: utf-8 | |
| require 'set' | |
| require 'json' | |
| require 'pp' | |
| class HeapDump | |
| def initialize(data) | |
| @objects = data.split("\n").map.with_index{ |line, idx| | |
| begin | |
| JSON.parse(line) |
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| ## without patch | |
| 2000 requests to https://github.com/rails/rails/pull/11955 as (anonymous) | |
| cpu time: 154,548ms total (77ms avg/req, 68ms - 205ms) | |
| oob gc: 0 / 0ms | |
| in-request gc: 150 / 6,004ms total (40ms avg/req, 30ms - 124ms) | |
| allocations: 154,895,372 objs total (77,447 objs avg/req, 77,332 objs - 79,043 objs) | |
| ## with patch |