[#63592] [ruby-trunk - Bug #10009] IO operation is 10x slower in multi-thread environment — normalperson@...
Issue #10009 has been updated by Eric Wong.
3 messages
2014/07/08
[#63682] [ruby-trunk - Feature #10030] [PATCH] reduce rb_iseq_struct to 296 bytes — ko1@...
Issue #10030 has been updated by Koichi Sasada.
3 messages
2014/07/13
[#63703] [ruby-trunk - Feature #10030] [PATCH] reduce rb_iseq_struct to 296 bytes — ko1@...
Issue #10030 has been updated by Koichi Sasada.
3 messages
2014/07/14
[#63743] [ruby-trunk - Bug #10037] Since r46798 on Solaris, "[BUG] rb_vm_get_cref: unreachable" during make — ngotogenome@...
Issue #10037 has been updated by Naohisa Goto.
3 messages
2014/07/15
[#64136] Ruby 2.1.2 (and 2.1.1 and probably others) assumes a libffi with 3 version numbers in extconf.rb — "Jeffrey 'jf' Lim" <jfs.world@...>
As per subject.
4 messages
2014/07/31
[#64138] Re: Ruby 2.1.2 (and 2.1.1 and probably others) assumes a libffi with 3 version numbers in extconf.rb
— "Jeffrey 'jf' Lim" <jfs.world@...>
2014/07/31
On Thu, Jul 31, 2014 at 6:03 PM, Jeffrey 'jf' Lim <[email protected]>
[ruby-core:63874] [ruby-trunk - Bug #10076] 2nd thread can't get mutex even though 1st thread released it (race)
From:
nobu@...
Date:
2014-07-19 14:01:55 UTC
List:
ruby-core #63874
Issue #10076 has been updated by Nobuyoshi Nakada.
Description updated
Thread fairness issue?
Checking interrupts seems to help it, but not sure.
~~~diff
diff --git a/thread.c b/thread.c
index 682e05f..6f67df6 100644
--- a/thread.c
+++ b/thread.c
@@ -4528,11 +4528,15 @@ rb_mutex_synchronize(VALUE mutex, VALUE (*func)(VALUE arg), VALUE arg)
static VALUE
rb_mutex_synchronize_m(VALUE self, VALUE args)
{
+ VALUE ret;
+
if (!rb_block_given_p()) {
rb_raise(rb_eThreadError, "must be called with a block");
}
- return rb_mutex_synchronize(self, rb_yield, Qundef);
+ ret = rb_mutex_synchronize(self, rb_yield, Qundef);
+ RUBY_VM_CHECK_INTS(GET_THREAD());
+ return ret;
}
void rb_mutex_allow_trap(VALUE self, int val)
~~~
----------------------------------------
Bug #10076: 2nd thread can't get mutex even though 1st thread released it (race)
https://bugs.ruby-lang.org/issues/10076#change-47898
* Author: Dmitry Maksyoma
* Status: Open
* Priority: Normal
* Assignee:
* Category: lib
* Target version:
* ruby -v: ruby 2.1.2p95 (2014-05-08 revision 45877) [i686-linux]
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN
----------------------------------------
~~~ruby
require 'thread'
m = Mutex.new
Thread.abort_on_exception = true
Thread.new {
loop {
m.synchronize {
puts 'got mutex in thread'
sleep 0.1
}
}
}
loop {
m.synchronize {
puts 'got mutex in loop'
sleep 1
}
# Without sleep, the thread above has no chance of getting the mutex.
#sleep 0.1
}
~~~
---Files--------------------------------
monitor-test (344 Bytes)
--
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