[#67346] Future of test suites for Ruby — Charles Oliver Nutter <headius@...>
I'll try to be brief so we can discuss all this. tl;dr: RubySpec is
19 messages
2015/01/05
[#67353] Re: Future of test suites for Ruby
— Tanaka Akira <akr@...>
2015/01/05
2015-01-06 7:18 GMT+09:00 Charles Oliver Nutter <[email protected]>:
[#67444] [ruby-trunk - Feature #10718] [Open] IO#close should not raise IOError on closed IO objects. — akr@...
Issue #10718 has been reported by Akira Tanaka.
3 messages
2015/01/09
[#67689] Keyword Arguments — Anthony Crumley <anthony.crumley@...>
Please forgive my ignorance as I am new to MRI development and am still
5 messages
2015/01/20
[#67733] [ruby-trunk - Bug #10761] Marshal.dump 100% slower in 2.2.0 vs 2.1.5 — normalperson@...
Issue #10761 has been updated by Eric Wong.
4 messages
2015/01/21
[#67736] Re: [ruby-trunk - Bug #10761] Marshal.dump 100% slower in 2.2.0 vs 2.1.5
— Eric Wong <normalperson@...>
2015/01/22
[email protected] wrote:
[#67772] Preventing Redundant Email Messages — Jeremy Evans <code@...>
For a long time, I've wondered why I sometimes receive redundant email
5 messages
2015/01/23
[ruby-core:67728] [ruby-trunk - Bug #10761] Marshal.dump 100% slower in 2.2.0 vs 2.1.5
From:
janmayjuldec-programming@...
Date:
2015-01-21 16:15:01 UTC
List:
ruby-core #67728
Issue #10761 has been updated by David Jenkins.
Final repro, no data files, all code:
~~~
require 'benchmark'
class ToBeMarshaled
def initialize n
@a = []
n.times do |i|
@a << i.to_f
end
end
end
tbm = ToBeMarshaled.new(10000)
n = 100
Benchmark.bm do |x|
x.report("Marshal Dump") {for i in 1..n; Marshal.dump(tbm); end}
end
~~~
results (ran benchmark 3 times for each Ruby version):
2.1.5
user system total real
Marshal Dump 0.640000 0.010000 0.650000 ( 0.744080)
Marshal Dump 0.670000 0.000000 0.670000 ( 0.758597)
Marshal Dump 0.650000 0.020000 0.670000 ( 0.747583)
2.2.0
user system total real
Marshal Dump 25.070000 0.220000 25.290000 ( 27.980023)
Marshal Dump 24.100000 0.160000 24.260000 ( 26.633049)
Marshal Dump 24.440000 0.230000 24.670000 ( 27.540826)
~35 times slower
----------------------------------------
Bug #10761: Marshal.dump 100% slower in 2.2.0 vs 2.1.5
https://bugs.ruby-lang.org/issues/10761#change-51158
* Author: David Jenkins
* Status: Open
* Priority: High
* Assignee:
* ruby -v: 2.2.0
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN, 2.2: UNKNOWN
----------------------------------------
Calling Marshal.dump on a complex (nested) object 100 times shows the following:
2.1.5
user system total real
Marshal Dump 24.350000 0.250000 24.600000 ( 29.330294)
2.2.0
user system total real
Marshal Dump 50.450000 0.140000 50.590000 ( 52.268773)
To reproduce, put marshal_slow.rb and nested_ds.txt in same directory and run marshal_slow.rb.
I found that Marshal.dump only shows this kind of discrepancy on deeply nested objects. The nested_ds.txt file is a dump of an object that contained a collection of sub objects of the same type.
---Files--------------------------------
nested_ds.txt (2.1 MB)
marshal_slow.rb (212 Bytes)
dataset_dump.txt (362 KB)
better_slow_marshal.rb (239 Bytes)
--
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